./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d6e0df2899d65d0508b73b519bfb92548746b7db .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:01:17,930 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:01:17,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:01:17,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:01:17,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:01:17,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:01:17,972 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:01:17,974 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:01:17,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:01:17,977 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:01:17,978 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:01:17,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:01:17,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:01:17,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:01:17,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:01:17,984 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:01:17,985 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:01:17,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:01:17,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:01:17,991 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:01:17,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:01:17,994 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:01:17,995 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:01:17,996 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:01:18,000 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:01:18,000 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:01:18,001 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:01:18,002 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:01:18,002 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:01:18,003 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:01:18,004 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:01:18,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:01:18,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:01:18,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:01:18,007 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:01:18,008 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:01:18,008 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:01:18,009 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:01:18,009 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:01:18,010 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:01:18,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:01:18,015 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:01:18,066 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:01:18,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:01:18,067 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:01:18,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:01:18,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:01:18,069 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:01:18,069 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:01:18,069 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:01:18,069 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:01:18,070 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:01:18,070 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:01:18,071 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:01:18,071 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:01:18,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:01:18,071 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:01:18,072 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:01:18,072 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:01:18,072 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:01:18,072 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:01:18,072 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:01:18,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:01:18,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:01:18,073 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:01:18,073 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:01:18,073 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:01:18,074 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:01:18,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:01:18,074 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:01:18,074 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:01:18,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:01:18,075 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:01:18,075 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:01:18,076 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:01:18,076 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_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6e0df2899d65d0508b73b519bfb92548746b7db [2021-10-13 00:01:18,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:01:18,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:01:18,358 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:01:18,359 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:01:18,360 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:01:18,361 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-10-13 00:01:18,421 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/data/1ff95708f/0222738911f942db837401c53250a029/FLAG1f943fc6c [2021-10-13 00:01:18,885 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:01:18,885 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-10-13 00:01:18,897 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/data/1ff95708f/0222738911f942db837401c53250a029/FLAG1f943fc6c [2021-10-13 00:01:19,244 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/data/1ff95708f/0222738911f942db837401c53250a029 [2021-10-13 00:01:19,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:01:19,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:01:19,250 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:19,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:01:19,272 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:01:19,272 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24211b48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19, skipping insertion in model container [2021-10-13 00:01:19,274 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:01:19,329 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:01:19,562 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_406d0ef3-769b-45ac-a626-bfe7c7174979/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13613,13626] [2021-10-13 00:01:19,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:19,613 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:01:19,668 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_406d0ef3-769b-45ac-a626-bfe7c7174979/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13613,13626] [2021-10-13 00:01:19,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:01:19,704 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:01:19,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19 WrapperNode [2021-10-13 00:01:19,704 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:01:19,706 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:19,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:01:19,706 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:01:19,713 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,731 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,771 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:01:19,772 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:01:19,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:01:19,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:01:19,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,784 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,805 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:01:19,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:01:19,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:01:19,810 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:01:19,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (1/1) ... [2021-10-13 00:01:19,833 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:01:19,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:01:19,859 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:01:19,896 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:01:19,918 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:01:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:01:19,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:01:19,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:01:20,789 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:01:20,789 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-10-13 00:01:20,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:20 BoogieIcfgContainer [2021-10-13 00:01:20,791 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:01:20,792 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:01:20,793 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:01:20,809 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:01:20,809 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:20,810 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:01:19" (1/3) ... [2021-10-13 00:01:20,819 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7beb434c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:01:20, skipping insertion in model container [2021-10-13 00:01:20,819 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:20,819 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:01:19" (2/3) ... [2021-10-13 00:01:20,820 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7beb434c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:01:20, skipping insertion in model container [2021-10-13 00:01:20,820 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:01:20,820 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:20" (3/3) ... [2021-10-13 00:01:20,821 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2021-10-13 00:01:20,877 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:01:20,877 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:01:20,877 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:01:20,877 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:01:20,878 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:01:20,878 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:01:20,878 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:01:20,878 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:01:20,903 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:20,931 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-13 00:01:20,931 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:20,931 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:20,937 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:20,938 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:20,938 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:01:20,938 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:20,945 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-13 00:01:20,945 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:20,945 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:20,948 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:20,949 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:20,954 INFO L791 eck$LassoCheckResult]: Stem: 69#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 50#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 68#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 80#L75true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 46#L688true assume 0 != main_~tmp~4; 26#L663true ~switchedOnBeforeTS~0 := 0; 8#L89true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 30#L110-1true [2021-10-13 00:01:20,954 INFO L793 eck$LassoCheckResult]: Loop: 30#L110-1true assume !false; 14#L714true assume test_~splverifierCounter~0 < 4; 21#L715true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 82#L723true assume !(0 != test_~tmp~5); 67#L723-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 44#L733true assume !(0 != test_~tmp___0~1); 10#L733-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 76#L743true assume 0 != test_~tmp___2~0; 65#L749-1true havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 75#L885true __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 55#L99true assume !(0 != ~pumpRunning~0); 71#L782true assume !(0 != ~systemActive~0); 6#L789true havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 18#L579true __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 5#L110true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 30#L110-1true [2021-10-13 00:01:20,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:20,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:01:20,969 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:20,969 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648181387] [2021-10-13 00:01:20,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:20,970 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:21,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:21,170 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:21,309 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:21,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:21,319 INFO L82 PathProgramCache]: Analyzing trace with hash -241953451, now seen corresponding path program 1 times [2021-10-13 00:01:21,319 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:21,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696018181] [2021-10-13 00:01:21,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:21,320 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:21,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:21,328 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:21,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:21,354 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:21,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:21,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1692071759, now seen corresponding path program 1 times [2021-10-13 00:01:21,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:21,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6058142] [2021-10-13 00:01:21,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:21,357 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:21,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:21,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:21,575 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:21,575 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6058142] [2021-10-13 00:01:21,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6058142] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:21,576 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:21,576 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:01:21,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686770464] [2021-10-13 00:01:21,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:21,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:01:21,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:01:21,795 INFO L87 Difference]: Start difference. First operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:22,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:22,035 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2021-10-13 00:01:22,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:01:22,048 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2021-10-13 00:01:22,057 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2021-10-13 00:01:22,069 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2021-10-13 00:01:22,070 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2021-10-13 00:01:22,071 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2021-10-13 00:01:22,072 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2021-10-13 00:01:22,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:01:22,074 INFO L681 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2021-10-13 00:01:22,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2021-10-13 00:01:22,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2021-10-13 00:01:22,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.408) internal successors, (176), 124 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:22,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2021-10-13 00:01:22,142 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2021-10-13 00:01:22,161 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2021-10-13 00:01:22,161 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:01:22,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2021-10-13 00:01:22,165 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-10-13 00:01:22,165 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:22,165 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:22,166 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:22,166 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:22,167 INFO L791 eck$LassoCheckResult]: Stem: 391#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 381#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 382#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 390#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 376#L688 assume 0 != main_~tmp~4; 355#L663 ~switchedOnBeforeTS~0 := 0; 327#L89 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 322#L110-1 [2021-10-13 00:01:22,167 INFO L793 eck$LassoCheckResult]: Loop: 322#L110-1 assume !false; 338#L714 assume test_~splverifierCounter~0 < 4; 339#L715 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 349#L723 assume !(0 != test_~tmp~5); 378#L723-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 374#L733 assume !(0 != test_~tmp___0~1); 331#L733-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 332#L743 assume 0 != test_~tmp___2~0; 330#L749-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 388#L885 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 384#L99 assume !(0 != ~pumpRunning~0); 357#L782 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 362#L814 assume !(0 != ~pumpRunning~0); 323#L789 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 324#L579 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 320#L110 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 322#L110-1 [2021-10-13 00:01:22,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:01:22,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429879127] [2021-10-13 00:01:22,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,220 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:22,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,285 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:22,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1062384515, now seen corresponding path program 1 times [2021-10-13 00:01:22,286 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,287 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645549948] [2021-10-13 00:01:22,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,287 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,293 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:22,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,302 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:22,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,303 INFO L82 PathProgramCache]: Analyzing trace with hash 887623881, now seen corresponding path program 1 times [2021-10-13 00:01:22,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,304 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103960658] [2021-10-13 00:01:22,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,304 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:01:22,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:01:22,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:01:22,392 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103960658] [2021-10-13 00:01:22,392 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103960658] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:01:22,392 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:01:22,393 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:01:22,393 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253195240] [2021-10-13 00:01:22,529 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:01:22,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:01:22,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:01:22,535 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:22,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:01:22,687 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2021-10-13 00:01:22,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:01:22,689 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2021-10-13 00:01:22,705 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2021-10-13 00:01:22,712 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2021-10-13 00:01:22,716 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2021-10-13 00:01:22,718 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2021-10-13 00:01:22,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2021-10-13 00:01:22,722 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:01:22,725 INFO L681 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2021-10-13 00:01:22,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2021-10-13 00:01:22,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2021-10-13 00:01:22,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 243 states have (on average 1.3621399176954732) internal successors, (331), 242 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:01:22,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2021-10-13 00:01:22,771 INFO L704 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2021-10-13 00:01:22,771 INFO L587 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2021-10-13 00:01:22,771 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:01:22,771 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2021-10-13 00:01:22,773 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2021-10-13 00:01:22,774 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:01:22,774 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:01:22,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:22,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:01:22,776 INFO L791 eck$LassoCheckResult]: Stem: 886#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 868#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 869#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 885#L75 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 861#L688 assume 0 != main_~tmp~4; 839#L663 ~switchedOnBeforeTS~0 := 0; 808#L89 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 809#L110-1 [2021-10-13 00:01:22,776 INFO L793 eck$LassoCheckResult]: Loop: 809#L110-1 assume !false; 818#L714 assume test_~splverifierCounter~0 < 4; 819#L715 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 982#L723 assume !(0 != test_~tmp~5); 983#L723-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 858#L733 assume !(0 != test_~tmp___0~1); 810#L733-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 811#L743 assume 0 != test_~tmp___2~0; 807#L749-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 974#L885 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 972#L99 assume !(0 != ~pumpRunning~0); 971#L782 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 845#L814 assume !(0 != ~pumpRunning~0); 801#L789 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 802#L579 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 797#L110 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 798#L885-1 __utac_acc__Specification5_spec__3_#t~ret10 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret10;havoc __utac_acc__Specification5_spec__3_#t~ret10; 889#L114 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 809#L110-1 [2021-10-13 00:01:22,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:01:22,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971166803] [2021-10-13 00:01:22,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,826 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:22,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,921 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:22,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,924 INFO L82 PathProgramCache]: Analyzing trace with hash -1250711394, now seen corresponding path program 1 times [2021-10-13 00:01:22,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699857979] [2021-10-13 00:01:22,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,925 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,931 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:22,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:01:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:01:22,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1691956124, now seen corresponding path program 1 times [2021-10-13 00:01:22,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:01:22,942 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112771542] [2021-10-13 00:01:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:01:22,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:01:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:22,993 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:01:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:01:23,039 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:02:18,581 WARN L207 SmtUtils]: Spent 55.30 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 00:03:17,103 WARN L207 SmtUtils]: Spent 27.22 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 00:03:17,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:03:17 BoogieIcfgContainer [2021-10-13 00:03:17,199 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:03:17,200 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:03:17,200 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:03:17,200 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:03:17,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:01:20" (3/4) ... [2021-10-13 00:03:17,203 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:03:17,249 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:03:17,249 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:03:17,250 INFO L168 Benchmark]: Toolchain (without parser) took 118001.52 ms. Allocated memory was 96.5 MB in the beginning and 151.0 MB in the end (delta: 54.5 MB). Free memory was 75.8 MB in the beginning and 48.8 MB in the end (delta: 27.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,251 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:03:17,251 INFO L168 Benchmark]: CACSL2BoogieTranslator took 454.86 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 64.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,252 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.55 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 61.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,252 INFO L168 Benchmark]: Boogie Preprocessor took 37.68 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 59.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,253 INFO L168 Benchmark]: RCFGBuilder took 981.48 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 80.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,254 INFO L168 Benchmark]: BuchiAutomizer took 116406.59 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 80.4 MB in the beginning and 50.9 MB in the end (delta: 29.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,254 INFO L168 Benchmark]: Witness Printer took 49.91 ms. Allocated memory is still 151.0 MB. Free memory was 50.9 MB in the beginning and 48.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:03:17,257 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 454.86 ms. Allocated memory is still 96.5 MB. Free memory was 75.8 MB in the beginning and 64.8 MB in the end (delta: 11.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 65.55 ms. Allocated memory is still 96.5 MB. Free memory was 64.8 MB in the beginning and 61.9 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.68 ms. Allocated memory is still 96.5 MB. Free memory was 61.9 MB in the beginning and 59.9 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 981.48 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 59.6 MB in the beginning and 80.4 MB in the end (delta: -20.8 MB). Peak memory consumption was 32.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 116406.59 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 80.4 MB in the beginning and 50.9 MB in the end (delta: 29.6 MB). Peak memory consumption was 78.0 MB. Max. memory is 16.1 GB. * Witness Printer took 49.91 ms. Allocated memory is still 151.0 MB. Free memory was 50.9 MB in the beginning and 48.8 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 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 116.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 115.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 77.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 861 SDslu, 849 SDs, 0 SdLazy, 120 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 227.4ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 713]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25817} State at position 1 is {NULL=0, NULL=0, NULL=25832, NULL=25817, NULL=0, NULL=25840, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28290940=0, NULL=0, NULL=25844, retValue_acc=0, NULL=0, NULL=0, NULL=25837, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=25841, NULL=25823, NULL=0, tmp___1=0, NULL=25819, tmp=1, NULL=0, NULL=0, NULL=25845, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d5ec1f=0, retValue_acc=0, cleanupTimeShifts=4, NULL=25827, switchedOnBeforeTS=0, NULL=25834, NULL=25831, \result=0, NULL=25818, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=25835, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=25830, NULL=0, NULL=0, NULL=25829, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=25825, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=25826, NULL=0, NULL=0, NULL=0, NULL=25839, NULL=25836, NULL=0, NULL=25843, retValue_acc=1, retValue_acc=1, tmp___2=57, NULL=0, NULL=25842, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@434a5730=0, NULL=25838, NULL=25822, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c0aa17e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bc7f6a6=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7075f262=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ac38ce2=0, head=0, tmp=0, NULL=25821, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20fb32d5=0, NULL=25828, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f259f8a=0, NULL=25833, NULL=25820, NULL=25824} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L83] int switchedOnBeforeTS ; [L301] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L504] int waterLevel = 1; [L505] int methaneLevelCritical = 0; [L602] int cleanupTimeShifts = 4; [L772] int pumpRunning = 0; [L773] int systemActive = 1; [L679] int retValue_acc ; [L680] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L686] tmp = valid_product() [L688] COND TRUE \read(tmp) [L88] switchedOnBeforeTS = 0 [L704] int splverifierCounter ; [L705] int tmp ; [L706] int tmp___0 ; [L707] int tmp___1 ; [L708] int tmp___2 ; [L711] splverifierCounter = 0 Loop: [L713] COND TRUE 1 [L715] COND TRUE splverifierCounter < 4 [L721] tmp = __VERIFIER_nondet_int() [L723] COND FALSE !(\read(tmp)) [L731] tmp___0 = __VERIFIER_nondet_int() [L733] COND FALSE !(\read(tmp___0)) [L741] tmp___2 = __VERIFIER_nondet_int() [L743] COND TRUE \read(tmp___2) [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L97] switchedOnBeforeTS = isPumpRunning() [L782] COND FALSE !(\read(pumpRunning)) [L789] COND TRUE \read(systemActive) [L811] int tmp ; [L814] COND FALSE !(\read(pumpRunning)) [L103] int tmp ; [L104] int tmp___0 ; [L575] int retValue_acc ; [L578] retValue_acc = waterLevel [L579] return (retValue_acc); [L108] tmp = getWaterLevel() [L110] COND TRUE tmp != 2 [L881] int retValue_acc ; [L884] retValue_acc = pumpRunning [L885] return (retValue_acc); [L112] tmp___0 = isPumpRunning() [L114] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:03:17,314 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_406d0ef3-769b-45ac-a626-bfe7c7174979/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...