./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX --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 005abaec2a454c7fb65798a6dda24f313852a7f1e057438fd3d0e339e7c67228 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:37:03,769 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:37:03,771 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:37:03,815 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:37:03,816 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:37:03,821 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:37:03,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:37:03,831 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:37:03,838 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:37:03,840 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:37:03,841 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:37:03,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:37:03,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:37:03,849 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:37:03,852 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:37:03,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:37:03,857 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:37:03,865 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:37:03,868 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:37:03,874 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:37:03,876 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:37:03,879 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:37:03,880 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:37:03,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:37:03,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:37:03,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:37:03,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:37:03,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:37:03,893 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:37:03,894 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:37:03,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:37:03,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:37:03,900 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:37:03,901 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:37:03,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:37:03,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:37:03,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:37:03,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:37:03,905 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:37:03,906 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:37:03,907 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:37:03,908 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:37:03,962 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:37:03,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:37:03,967 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:37:03,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:37:03,969 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:37:03,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:37:03,970 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:37:03,971 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:37:03,971 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:37:03,971 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:37:03,973 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:37:03,973 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:37:03,973 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:37:03,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:37:03,974 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:37:03,974 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:37:03,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:37:03,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:37:03,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:37:03,975 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:37:03,975 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:37:03,975 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:37:03,976 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:37:03,976 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:37:03,976 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:37:03,976 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:37:03,976 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:37:03,977 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:37:03,977 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:37:03,977 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:37:03,978 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:37:03,978 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:37:03,979 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:37:03,979 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_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 005abaec2a454c7fb65798a6dda24f313852a7f1e057438fd3d0e339e7c67228 [2021-11-09 09:37:04,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:37:04,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:37:04,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:37:04,309 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:37:04,311 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:37:04,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c [2021-11-09 09:37:04,414 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/data/1f3c927a4/e8251e9e4d364cab9fa049703611de77/FLAGb6229f461 [2021-11-09 09:37:05,013 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:37:05,013 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c [2021-11-09 09:37:05,032 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/data/1f3c927a4/e8251e9e4d364cab9fa049703611de77/FLAGb6229f461 [2021-11-09 09:37:05,273 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/data/1f3c927a4/e8251e9e4d364cab9fa049703611de77 [2021-11-09 09:37:05,275 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:37:05,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:37:05,279 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:37:05,279 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:37:05,283 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:37:05,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:05,285 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@368add5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05, skipping insertion in model container [2021-11-09 09:37:05,286 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:05,292 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:37:05,350 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:37:05,703 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_80140d4f-564e-4970-ad35-8dd64a012d80/sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c[7574,7587] [2021-11-09 09:37:05,766 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:37:05,777 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:37:05,827 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_80140d4f-564e-4970-ad35-8dd64a012d80/sv-benchmarks/c/product-lines/minepump_spec5_product07.cil.c[7574,7587] [2021-11-09 09:37:05,879 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:37:05,920 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:37:05,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05 WrapperNode [2021-11-09 09:37:05,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:37:05,923 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:37:05,924 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:37:05,924 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:37:05,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:05,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,007 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:37:06,008 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:37:06,008 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:37:06,008 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:37:06,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,047 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,048 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,059 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,082 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:37:06,083 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:37:06,083 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:37:06,083 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:37:06,097 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (1/1) ... [2021-11-09 09:37:06,108 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:37:06,120 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:37:06,132 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:37:06,135 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:37:06,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:37:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:37:06,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:37:06,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:37:07,222 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:37:07,223 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-11-09 09:37:07,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:37:07 BoogieIcfgContainer [2021-11-09 09:37:07,225 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:37:07,227 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:37:07,227 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:37:07,233 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:37:07,235 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:37:07,236 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:37:05" (1/3) ... [2021-11-09 09:37:07,238 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d2437fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:37:07, skipping insertion in model container [2021-11-09 09:37:07,259 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:37:07,259 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:37:05" (2/3) ... [2021-11-09 09:37:07,260 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7d2437fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:37:07, skipping insertion in model container [2021-11-09 09:37:07,260 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:37:07,260 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:37:07" (3/3) ... [2021-11-09 09:37:07,262 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product07.cil.c [2021-11-09 09:37:07,371 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:37:07,372 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:37:07,372 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:37:07,372 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:37:07,372 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:37:07,373 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:37:07,373 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:37:07,373 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:37:07,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:07,428 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-11-09 09:37:07,429 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:37:07,429 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:37:07,436 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:07,437 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:07,437 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:37:07,438 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:07,445 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-11-09 09:37:07,446 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:37:07,446 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:37:07,447 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:07,447 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:07,452 INFO L791 eck$LassoCheckResult]: Stem: 63#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 48#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; 59#L543true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 36#L551true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 40#L142true assume 0 != main_~tmp~0; 53#L113true ~switchedOnBeforeTS~0 := 0; 76#L248true havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, 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; 32#L269-1true [2021-11-09 09:37:07,453 INFO L793 eck$LassoCheckResult]: Loop: 32#L269-1true assume !false; 66#L303true assume test_~splverifierCounter~0 < 4; 35#L304true test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 72#L312true assume !(0 != test_~tmp~2); 39#L312-1true test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 18#L322true assume !(0 != test_~tmp___0~1); 77#L322-1true test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 26#L332true assume 0 != test_~tmp___2~0; 34#L338-1true havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 49#L456true __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 38#L258true assume !(0 != ~pumpRunning~0); 75#L371true assume !(0 != ~systemActive~0); 11#L378true havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 54#L235true __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 74#L269true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 32#L269-1true [2021-11-09 09:37:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:07,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-11-09 09:37:07,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:07,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458180641] [2021-11-09 09:37:07,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:07,475 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:07,791 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:07,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:07,970 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash -242168939, now seen corresponding path program 1 times [2021-11-09 09:37:07,974 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:07,974 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [809209659] [2021-11-09 09:37:07,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:07,975 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:07,984 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:07,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:07,998 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:08,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:08,000 INFO L85 PathProgramCache]: Analyzing trace with hash 1691856271, now seen corresponding path program 1 times [2021-11-09 09:37:08,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:08,001 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135278564] [2021-11-09 09:37:08,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:08,002 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:08,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:37:08,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:08,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135278564] [2021-11-09 09:37:08,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135278564] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:08,226 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:08,226 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:37:08,227 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729882511] [2021-11-09 09:37:08,431 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:37:08,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:37:08,452 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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) [2021-11-09 09:37:08,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:37:08,822 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2021-11-09 09:37:08,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:37:08,825 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 280 transitions. [2021-11-09 09:37:08,836 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2021-11-09 09:37:08,845 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 184 states and 259 transitions. [2021-11-09 09:37:08,846 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2021-11-09 09:37:08,848 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2021-11-09 09:37:08,849 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 259 transitions. [2021-11-09 09:37:08,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:08,851 INFO L681 BuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2021-11-09 09:37:08,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 259 transitions. [2021-11-09 09:37:08,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 119. [2021-11-09 09:37:08,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.403361344537815) internal successors, (167), 118 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:08,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2021-11-09 09:37:08,897 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2021-11-09 09:37:08,897 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2021-11-09 09:37:08,898 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:37:08,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 167 transitions. [2021-11-09 09:37:08,901 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-11-09 09:37:08,901 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:37:08,902 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:37:08,903 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:08,903 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:08,903 INFO L791 eck$LassoCheckResult]: Stem: 369#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 359#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; 360#L543 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 347#L551 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 348#L142 assume 0 != main_~tmp~0; 350#L113 ~switchedOnBeforeTS~0 := 0; 362#L248 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, 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; 324#L269-1 [2021-11-09 09:37:08,904 INFO L793 eck$LassoCheckResult]: Loop: 324#L269-1 assume !false; 341#L303 assume test_~splverifierCounter~0 < 4; 345#L304 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 346#L312 assume !(0 != test_~tmp~2); 343#L312-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 320#L322 assume !(0 != test_~tmp___0~1); 322#L322-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 335#L332 assume 0 != test_~tmp___2~0; 337#L338-1 havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 344#L456 __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 349#L258 assume !(0 != ~pumpRunning~0); 328#L371 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 370#L403 assume !(0 != ~pumpRunning~0); 311#L378 havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 312#L235 __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 363#L269 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~1); 324#L269-1 [2021-11-09 09:37:08,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:08,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-11-09 09:37:08,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:08,913 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [114258812] [2021-11-09 09:37:08,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:08,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,005 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:09,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:09,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:09,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1062169027, now seen corresponding path program 1 times [2021-11-09 09:37:09,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:09,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330869544] [2021-11-09 09:37:09,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:09,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,135 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:09,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:09,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:09,146 INFO L85 PathProgramCache]: Analyzing trace with hash 887408393, now seen corresponding path program 1 times [2021-11-09 09:37:09,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:09,147 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884613627] [2021-11-09 09:37:09,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:09,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:37:09,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:37:09,227 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:37:09,228 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884613627] [2021-11-09 09:37:09,228 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884613627] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:37:09,228 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:37:09,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:37:09,229 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263223321] [2021-11-09 09:37:09,380 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:37:09,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-09 09:37:09,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-09 09:37:09,382 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. cyclomatic complexity: 51 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) [2021-11-09 09:37:09,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:37:09,512 INFO L93 Difference]: Finished difference Result 316 states and 435 transitions. [2021-11-09 09:37:09,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:37:09,514 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 435 transitions. [2021-11-09 09:37:09,522 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2021-11-09 09:37:09,527 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 316 states and 435 transitions. [2021-11-09 09:37:09,528 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2021-11-09 09:37:09,529 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2021-11-09 09:37:09,529 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 435 transitions. [2021-11-09 09:37:09,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:37:09,532 INFO L681 BuchiCegarLoop]: Abstraction has 316 states and 435 transitions. [2021-11-09 09:37:09,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 435 transitions. [2021-11-09 09:37:09,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 231. [2021-11-09 09:37:09,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 231 states have (on average 1.354978354978355) internal successors, (313), 230 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:37:09,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2021-11-09 09:37:09,553 INFO L704 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2021-11-09 09:37:09,553 INFO L587 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2021-11-09 09:37:09,553 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:37:09,553 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2021-11-09 09:37:09,556 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2021-11-09 09:37:09,556 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:37:09,556 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:37:09,557 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:09,557 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:37:09,558 INFO L791 eck$LassoCheckResult]: Stem: 833#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(13);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(110, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 2 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string32.base, #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(102, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 3 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string34.base, #t~string34.offset, 1);call write~init~int(80, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(117, #t~string34.base, 2 + #t~string34.offset, 1);call write~init~int(109, #t~string34.base, 3 + #t~string34.offset, 1);call write~init~int(112, #t~string34.base, 4 + #t~string34.offset, 1);call write~init~int(58, #t~string34.base, 5 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 6 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(110, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 2 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string38.base, #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(102, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 3 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string40.base, #t~string40.offset, 1);call write~init~int(32, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 2 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string42.base, #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 1 + #t~string42.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 820#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; 821#L543 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := 1;valid_product_#res := valid_product_~retValue_acc~6; 803#L551 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 804#L142 assume 0 != main_~tmp~0; 808#L113 ~switchedOnBeforeTS~0 := 0; 825#L248 havoc test_#t~nondet21, test_#t~nondet22, test_#t~nondet23, test_#t~nondet24, 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; 776#L269-1 [2021-11-09 09:37:09,558 INFO L793 eck$LassoCheckResult]: Loop: 776#L269-1 assume !false; 796#L303 assume test_~splverifierCounter~0 < 4; 836#L304 test_~tmp~2 := test_#t~nondet21;havoc test_#t~nondet21; 920#L312 assume !(0 != test_~tmp~2); 918#L312-1 test_~tmp___0~1 := test_#t~nondet22;havoc test_#t~nondet22; 916#L322 assume !(0 != test_~tmp___0~1); 911#L322-1 test_~tmp___2~0 := test_#t~nondet23;havoc test_#t~nondet23; 908#L332 assume 0 != test_~tmp___2~0; 799#L338-1 havoc __utac_acc__Specification5_spec__2_#t~ret18;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 800#L456 __utac_acc__Specification5_spec__2_#t~ret18 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret18;havoc __utac_acc__Specification5_spec__2_#t~ret18; 805#L258 assume !(0 != ~pumpRunning~0); 806#L371 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret25, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 834#L403 assume !(0 != ~pumpRunning~0); 762#L378 havoc __utac_acc__Specification5_spec__3_#t~ret19, __utac_acc__Specification5_spec__3_#t~ret20, __utac_acc__Specification5_spec__3_~tmp~1, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~2;havoc getWaterLevel_~retValue_acc~2;getWaterLevel_~retValue_acc~2 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~2; 763#L235 __utac_acc__Specification5_spec__3_#t~ret19 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~1 := __utac_acc__Specification5_spec__3_#t~ret19;havoc __utac_acc__Specification5_spec__3_#t~ret19; 824#L269 assume 2 != __utac_acc__Specification5_spec__3_~tmp~1;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~4;havoc isPumpRunning_~retValue_acc~4;isPumpRunning_~retValue_acc~4 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~4; 885#L456-1 __utac_acc__Specification5_spec__3_#t~ret20 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret20;havoc __utac_acc__Specification5_spec__3_#t~ret20; 841#L273 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 776#L269-1 [2021-11-09 09:37:09,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:09,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-11-09 09:37:09,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:09,560 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466527270] [2021-11-09 09:37:09,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:09,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,653 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:09,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,755 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:09,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:09,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1457795586, now seen corresponding path program 1 times [2021-11-09 09:37:09,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:09,757 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477633702] [2021-11-09 09:37:09,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:09,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,769 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:09,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,778 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:37:09,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:37:09,779 INFO L85 PathProgramCache]: Analyzing trace with hash -1899040316, now seen corresponding path program 1 times [2021-11-09 09:37:09,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:37:09,780 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12435558] [2021-11-09 09:37:09,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:37:09,781 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:37:09,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,844 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:37:09,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:37:09,945 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:38:19,052 WARN L207 SmtUtils]: Spent 1.15 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-11-09 09:39:31,162 WARN L207 SmtUtils]: Spent 37.45 s on a formula simplification that was a NOOP. DAG size: 435 [2021-11-09 09:39:31,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:39:31 BoogieIcfgContainer [2021-11-09 09:39:31,275 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:39:31,276 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:39:31,276 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:39:31,276 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:39:31,277 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:37:07" (3/4) ... [2021-11-09 09:39:31,280 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:39:31,336 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:39:31,337 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:39:31,338 INFO L168 Benchmark]: Toolchain (without parser) took 146060.50 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 82.9 MB in the beginning and 64.0 MB in the end (delta: 18.9 MB). Peak memory consumption was 55.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,339 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 54.5 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:39:31,339 INFO L168 Benchmark]: CACSL2BoogieTranslator took 642.42 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 86.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,340 INFO L168 Benchmark]: Boogie Procedure Inliner took 83.62 ms. Allocated memory is still 119.5 MB. Free memory was 86.0 MB in the beginning and 82.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,341 INFO L168 Benchmark]: Boogie Preprocessor took 74.21 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 80.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,342 INFO L168 Benchmark]: RCFGBuilder took 1142.74 ms. Allocated memory is still 119.5 MB. Free memory was 80.7 MB in the beginning and 43.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,342 INFO L168 Benchmark]: BuchiAutomizer took 144048.41 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 43.5 MB in the beginning and 66.0 MB in the end (delta: -22.5 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,343 INFO L168 Benchmark]: Witness Printer took 61.13 ms. Allocated memory is still 155.2 MB. Free memory was 66.0 MB in the beginning and 64.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:39:31,346 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 83.9 MB. Free memory was 54.6 MB in the beginning and 54.5 MB in the end (delta: 26.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 642.42 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 86.0 MB in the end (delta: -3.2 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 83.62 ms. Allocated memory is still 119.5 MB. Free memory was 86.0 MB in the beginning and 82.8 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 74.21 ms. Allocated memory is still 119.5 MB. Free memory was 82.8 MB in the beginning and 80.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1142.74 ms. Allocated memory is still 119.5 MB. Free memory was 80.7 MB in the beginning and 43.5 MB in the end (delta: 37.2 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 144048.41 ms. Allocated memory was 119.5 MB in the beginning and 155.2 MB in the end (delta: 35.7 MB). Free memory was 43.5 MB in the beginning and 66.0 MB in the end (delta: -22.5 MB). Peak memory consumption was 49.7 MB. Max. memory is 16.1 GB. * Witness Printer took 61.13 ms. Allocated memory is still 155.2 MB. Free memory was 66.0 MB in the beginning and 64.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 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 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 143.1s. 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, 150 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 256 SDtfs, 771 SDslu, 796 SDs, 0 SdLazy, 105 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s 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: 302]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=25780, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=1, NULL=0, NULL=25765, NULL=25778, NULL=25772, NULL=0, NULL=25764, NULL=25783, NULL=25766, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ff4f89b=0, tmp=0, NULL=0, NULL=0, NULL=0, tmp=1, tmp___1=0, NULL=0, NULL=0, NULL=25769, NULL=25771, cleanupTimeShifts=4, NULL=25767, switchedOnBeforeTS=0, NULL=25775, \result=0, NULL=25770, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, retValue_acc=1, NULL=25759, tmp___0=0, \result=1, head=0, pumpRunning=0, tmp=1, \result=0, NULL=25773, NULL=0, NULL=25786, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f9f01f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19dfde08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14113974=56, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@478a24bd=0, retValue_acc=1, NULL=25782, NULL=0, NULL=0, NULL=25781, NULL=0, NULL=0, NULL=25760, NULL=0, tmp___2=56, NULL=0, NULL=25768, tmp___0=0, splverifierCounter=0, NULL=0, NULL=0, NULL=25784, NULL=25761, NULL=25785, NULL=25762, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71b85af7=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2916c0d4=0, head=0, NULL=0, NULL=25763, NULL=25777, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45d0fc63=0, NULL=25774, NULL=25776, NULL=25779, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a62ffba=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; [L160] int waterLevel = 1; [L161] int methaneLevelCritical = 0; [L242] int switchedOnBeforeTS ; [L361] int pumpRunning = 0; [L362] int systemActive = 1; [L725] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L133] int retValue_acc ; [L134] int tmp ; [L547] int retValue_acc ; [L550] retValue_acc = 1 [L551] return (retValue_acc); [L140] tmp = valid_product() [L142] COND TRUE \read(tmp) [L247] switchedOnBeforeTS = 0 [L293] int splverifierCounter ; [L294] int tmp ; [L295] int tmp___0 ; [L296] int tmp___1 ; [L297] int tmp___2 ; [L300] splverifierCounter = 0 Loop: [L302] COND TRUE 1 [L304] COND TRUE splverifierCounter < 4 [L310] tmp = __VERIFIER_nondet_int() [L312] COND FALSE !(\read(tmp)) [L320] tmp___0 = __VERIFIER_nondet_int() [L322] COND FALSE !(\read(tmp___0)) [L330] tmp___2 = __VERIFIER_nondet_int() [L332] COND TRUE \read(tmp___2) [L452] int retValue_acc ; [L455] retValue_acc = pumpRunning [L456] return (retValue_acc); [L256] switchedOnBeforeTS = isPumpRunning() [L371] COND FALSE !(\read(pumpRunning)) [L378] COND TRUE \read(systemActive) [L400] int tmp ; [L403] COND FALSE !(\read(pumpRunning)) [L262] int tmp ; [L263] int tmp___0 ; [L231] int retValue_acc ; [L234] retValue_acc = waterLevel [L235] return (retValue_acc); [L267] tmp = getWaterLevel() [L269] COND TRUE tmp != 2 [L452] int retValue_acc ; [L455] retValue_acc = pumpRunning [L456] return (retValue_acc); [L271] tmp___0 = isPumpRunning() [L273] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:39:31,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_80140d4f-564e-4970-ad35-8dd64a012d80/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)