./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be --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 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-e943c26 [2021-10-21 20:23:39,607 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:23:39,610 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:23:39,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:23:39,652 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:23:39,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:23:39,656 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:23:39,659 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:23:39,662 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:23:39,663 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:23:39,665 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:23:39,667 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:23:39,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:23:39,670 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:23:39,672 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:23:39,674 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:23:39,676 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:23:39,678 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:23:39,681 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:23:39,684 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:23:39,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:23:39,689 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:23:39,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:23:39,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:23:39,697 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:23:39,698 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:23:39,699 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:23:39,701 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:23:39,702 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:23:39,703 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:23:39,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:23:39,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:23:39,707 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:23:39,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:23:39,711 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:23:39,711 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:23:39,712 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:23:39,713 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:23:39,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:23:39,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:23:39,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:23:39,718 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:23:39,759 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:23:39,760 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:23:39,760 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:23:39,760 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:23:39,761 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:23:39,761 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:23:39,762 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:23:39,762 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:23:39,762 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:23:39,763 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:23:39,763 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:23:39,763 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:23:39,764 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:23:39,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:23:39,764 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:23:39,764 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:23:39,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:23:39,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:23:39,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:23:39,766 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:23:39,766 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:23:39,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:23:39,767 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:23:39,767 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:23:39,767 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:23:39,768 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:23:39,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:23:39,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:23:39,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:23:39,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:23:39,769 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:23:39,769 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:23:39,771 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:23:39,771 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_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 311cf727219391e066955da60e9a83cfca77eaf7b53c342c6934d47c5123e76f [2021-10-21 20:23:40,067 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:23:40,108 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:23:40,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:23:40,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:23:40,118 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:23:40,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-21 20:23:40,264 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/data/91c5e724f/58edb039c1c64b99aedac2f2600e1f70/FLAGc507d176d [2021-10-21 20:23:40,996 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:23:40,997 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c [2021-10-21 20:23:41,013 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/data/91c5e724f/58edb039c1c64b99aedac2f2600e1f70/FLAGc507d176d [2021-10-21 20:23:41,217 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/data/91c5e724f/58edb039c1c64b99aedac2f2600e1f70 [2021-10-21 20:23:41,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:23:41,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:23:41,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:23:41,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:23:41,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:23:41,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,235 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@479e46cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41, skipping insertion in model container [2021-10-21 20:23:41,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:23:41,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:23:41,680 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_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-21 20:23:41,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:23:41,720 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:23:41,798 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_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/sv-benchmarks/c/product-lines/minepump_spec1_product51.cil.c[15256,15269] [2021-10-21 20:23:41,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:23:41,840 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:23:41,840 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41 WrapperNode [2021-10-21 20:23:41,841 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:23:41,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:23:41,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:23:41,843 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:23:41,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,878 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,931 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:23:41,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:23:41,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:23:41,933 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:23:41,943 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,943 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,949 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,965 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,975 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:41,986 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:23:42,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:23:42,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:23:42,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:23:42,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (1/1) ... [2021-10-21 20:23:42,030 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:23:42,045 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:23:42,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:23:42,098 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:23:42,134 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:23:42,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:23:42,135 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:23:43,388 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:23:43,389 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-21 20:23:43,391 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:43 BoogieIcfgContainer [2021-10-21 20:23:43,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:23:43,393 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:23:43,393 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:23:43,398 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:23:43,399 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:43,399 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:23:41" (1/3) ... [2021-10-21 20:23:43,401 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e10bf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:23:43, skipping insertion in model container [2021-10-21 20:23:43,401 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:43,402 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:23:41" (2/3) ... [2021-10-21 20:23:43,402 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5e10bf8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:23:43, skipping insertion in model container [2021-10-21 20:23:43,403 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:23:43,403 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:43" (3/3) ... [2021-10-21 20:23:43,405 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product51.cil.c [2021-10-21 20:23:43,462 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:23:43,462 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:23:43,463 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:23:43,463 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:23:43,463 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:23:43,463 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:23:43,464 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:23:43,464 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:23:43,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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) [2021-10-21 20:23:43,520 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 20:23:43,521 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:43,521 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:43,531 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:23:43,532 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:23:43,532 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:23:43,533 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 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) [2021-10-21 20:23:43,542 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 75 [2021-10-21 20:23:43,542 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:43,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:43,544 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:23:43,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:23:43,550 INFO L791 eck$LassoCheckResult]: Stem: 108#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 43#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 36#L744true havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 59#L752true main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 90#L865true assume 0 != main_~tmp~9; 47#L842true havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 65#L765-1true [2021-10-21 20:23:43,551 INFO L793 eck$LassoCheckResult]: Loop: 65#L765-1true assume !false; 34#L66true assume test_~splverifierCounter~0 < 4; 107#L67true test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 52#L75true assume !(0 != test_~tmp~0); 29#L75-1true test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 35#L85true assume !(0 != test_~tmp___0~0); 49#L85-1true test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 80#L95true assume 0 != test_~tmp___2~0; 22#L101-1true assume !(0 != ~pumpRunning~0); 32#L139true assume !(0 != ~systemActive~0); 76#L146true havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 91#L923true __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 77#L765true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 65#L765-1true [2021-10-21 20:23:43,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:43,559 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 20:23:43,571 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:43,572 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443849078] [2021-10-21 20:23:43,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:43,574 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:43,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:43,951 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,135 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,139 INFO L82 PathProgramCache]: Analyzing trace with hash -1671186421, now seen corresponding path program 1 times [2021-10-21 20:23:44,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,140 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647413633] [2021-10-21 20:23:44,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,140 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,149 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:44,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:44,161 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:44,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:44,164 INFO L82 PathProgramCache]: Analyzing trace with hash 43092517, now seen corresponding path program 1 times [2021-10-21 20:23:44,164 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:44,164 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459808727] [2021-10-21 20:23:44,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:44,165 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:44,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:23:44,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:23:44,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459808727] [2021-10-21 20:23:44,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459808727] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:23:44,365 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:23:44,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:23:44,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674528167] [2021-10-21 20:23:44,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:23:44,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:23:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:23:44,530 INFO L87 Difference]: Start difference. First operand has 116 states, 115 states have (on average 1.5391304347826087) internal successors, (177), 115 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:23:44,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:23:44,924 INFO L93 Difference]: Finished difference Result 276 states and 396 transitions. [2021-10-21 20:23:44,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 20:23:44,926 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 276 states and 396 transitions. [2021-10-21 20:23:44,942 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 177 [2021-10-21 20:23:44,956 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 276 states to 255 states and 375 transitions. [2021-10-21 20:23:44,959 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 255 [2021-10-21 20:23:44,965 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 255 [2021-10-21 20:23:44,966 INFO L73 IsDeterministic]: Start isDeterministic. Operand 255 states and 375 transitions. [2021-10-21 20:23:44,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:23:44,970 INFO L681 BuchiCegarLoop]: Abstraction has 255 states and 375 transitions. [2021-10-21 20:23:44,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states and 375 transitions. [2021-10-21 20:23:45,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 150. [2021-10-21 20:23:45,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.46) internal successors, (219), 149 states have internal predecessors, (219), 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) [2021-10-21 20:23:45,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 219 transitions. [2021-10-21 20:23:45,029 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2021-10-21 20:23:45,029 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 219 transitions. [2021-10-21 20:23:45,029 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:23:45,029 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 219 transitions. [2021-10-21 20:23:45,032 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-10-21 20:23:45,032 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:45,032 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:45,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:23:45,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:23:45,034 INFO L791 eck$LassoCheckResult]: Stem: 517#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 474#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 465#L744 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 466#L752 main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 491#L865 assume 0 != main_~tmp~9; 479#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 477#L765-1 [2021-10-21 20:23:45,034 INFO L793 eck$LassoCheckResult]: Loop: 477#L765-1 assume !false; 462#L66 assume test_~splverifierCounter~0 < 4; 463#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 483#L75 assume !(0 != test_~tmp~0); 454#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 455#L85 assume !(0 != test_~tmp___0~0); 436#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 480#L95 assume 0 != test_~tmp___2~0; 442#L101-1 assume !(0 != ~pumpRunning~0); 444#L139 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 460#L197 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 450#L171-1 assume !(0 == ~pumpRunning~0); 413#L146 havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 502#L923 __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 503#L765 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 477#L765-1 [2021-10-21 20:23:45,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:45,035 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 20:23:45,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:45,036 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1746542989] [2021-10-21 20:23:45,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:45,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:45,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,137 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:45,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,271 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:45,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:45,272 INFO L82 PathProgramCache]: Analyzing trace with hash 1961899913, now seen corresponding path program 1 times [2021-10-21 20:23:45,273 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:45,273 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681893582] [2021-10-21 20:23:45,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:45,274 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:23:45,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:23:45,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:23:45,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681893582] [2021-10-21 20:23:45,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681893582] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:23:45,297 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:23:45,297 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:23:45,298 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267204408] [2021-10-21 20:23:45,298 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:23:45,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:23:45,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:23:45,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:23:45,304 INFO L87 Difference]: Start difference. First operand 150 states and 219 transitions. cyclomatic complexity: 72 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2021-10-21 20:23:45,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:23:45,404 INFO L93 Difference]: Finished difference Result 189 states and 259 transitions. [2021-10-21 20:23:45,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:23:45,405 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 259 transitions. [2021-10-21 20:23:45,409 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-10-21 20:23:45,411 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 189 states and 259 transitions. [2021-10-21 20:23:45,412 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 189 [2021-10-21 20:23:45,412 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 189 [2021-10-21 20:23:45,413 INFO L73 IsDeterministic]: Start isDeterministic. Operand 189 states and 259 transitions. [2021-10-21 20:23:45,414 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:23:45,414 INFO L681 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-10-21 20:23:45,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states and 259 transitions. [2021-10-21 20:23:45,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2021-10-21 20:23:45,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 189 states have (on average 1.3703703703703705) internal successors, (259), 188 states have internal predecessors, (259), 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) [2021-10-21 20:23:45,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2021-10-21 20:23:45,429 INFO L704 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-10-21 20:23:45,429 INFO L587 BuchiCegarLoop]: Abstraction has 189 states and 259 transitions. [2021-10-21 20:23:45,429 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:23:45,429 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 189 states and 259 transitions. [2021-10-21 20:23:45,431 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 134 [2021-10-21 20:23:45,432 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:23:45,432 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:23:45,433 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 20:23:45,433 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:23:45,433 INFO L791 eck$LassoCheckResult]: Stem: 872#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~string15.base, #t~string15.offset := #Ultimate.allocOnStack(13);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(110, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 2 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(102, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 3 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string21.base, #t~string21.offset, 1);call write~init~int(80, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(117, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(109, #t~string21.base, 3 + #t~string21.offset, 1);call write~init~int(112, #t~string21.base, 4 + #t~string21.offset, 1);call write~init~int(58, #t~string21.base, 5 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 6 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(110, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string25.base, #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(102, #t~string25.base, 2 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 3 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string27.base, #t~string27.offset, 1);call write~init~int(32, #t~string27.base, 1 + #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 2 + #t~string27.offset, 1);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string29.base, #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 1 + #t~string29.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(30);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(9);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(21);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);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(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 821#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~9, main_~tmp~9;havoc main_~retValue_acc~9;havoc main_~tmp~9; 809#L744 havoc valid_product_#res;havoc valid_product_~retValue_acc~8;havoc valid_product_~retValue_acc~8;valid_product_~retValue_acc~8 := 1;valid_product_#res := valid_product_~retValue_acc~8; 810#L752 main_#t~ret70 := valid_product_#res;main_~tmp~9 := main_#t~ret70;havoc main_#t~ret70; 843#L865 assume 0 != main_~tmp~9; 827#L842 havoc test_#t~nondet7, test_#t~nondet8, test_#t~nondet9, test_#t~nondet10, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 825#L765-1 [2021-10-21 20:23:45,434 INFO L793 eck$LassoCheckResult]: Loop: 825#L765-1 assume !false; 806#L66 assume test_~splverifierCounter~0 < 4; 807#L67 test_~tmp~0 := test_#t~nondet7;havoc test_#t~nondet7; 936#L75 assume !(0 != test_~tmp~0); 934#L75-1 test_~tmp___0~0 := test_#t~nondet8;havoc test_#t~nondet8; 933#L85 assume !(0 != test_~tmp___0~0); 829#L85-1 test_~tmp___2~0 := test_#t~nondet9;havoc test_#t~nondet9; 830#L95 assume 0 != test_~tmp___2~0; 786#L101-1 assume !(0 != ~pumpRunning~0); 787#L139 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret12, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 803#L197 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret11, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 793#L171-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret30, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 794#L963-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 847#L968-1 isHighWaterLevel_#t~ret30 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret30;havoc isHighWaterLevel_#t~ret30; 865#L299-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 802#L299-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 789#L305-1 processEnvironment__wrappee__highWaterSensor_#t~ret11 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret11;havoc processEnvironment__wrappee__highWaterSensor_#t~ret11; 790#L175-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 759#L146 havoc __utac_acc__Specification1_spec__1_#t~ret68, __utac_acc__Specification1_spec__1_#t~ret69, __utac_acc__Specification1_spec__1_~tmp~8, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~8;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 854#L923 __utac_acc__Specification1_spec__1_#t~ret68 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~8 := __utac_acc__Specification1_spec__1_#t~ret68;havoc __utac_acc__Specification1_spec__1_#t~ret68; 855#L765 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~8); 825#L765-1 [2021-10-21 20:23:45,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:45,434 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 20:23:45,435 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:45,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317598886] [2021-10-21 20:23:45,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:45,435 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:45,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,482 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:45,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,541 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:45,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:45,542 INFO L82 PathProgramCache]: Analyzing trace with hash -2099215595, now seen corresponding path program 1 times [2021-10-21 20:23:45,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:45,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522378534] [2021-10-21 20:23:45,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:45,543 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:45,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,550 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:45,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,559 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:23:45,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:23:45,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1643144401, now seen corresponding path program 1 times [2021-10-21 20:23:45,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:23:45,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022062504] [2021-10-21 20:23:45,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:23:45,563 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:23:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,653 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:23:45,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:23:45,742 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:25:02,525 WARN L207 SmtUtils]: Spent 1.27 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 20:26:24,448 WARN L207 SmtUtils]: Spent 40.46 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 20:26:24,656 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:26:24 BoogieIcfgContainer [2021-10-21 20:26:24,656 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:26:24,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:26:24,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:26:24,658 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:26:24,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:23:43" (3/4) ... [2021-10-21 20:26:24,661 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:26:24,724 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:26:24,725 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:26:24,726 INFO L168 Benchmark]: Toolchain (without parser) took 163501.40 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 62.9 MB in the beginning and 64.9 MB in the end (delta: -2.0 MB). Peak memory consumption was 55.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,727 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:24,727 INFO L168 Benchmark]: CACSL2BoogieTranslator took 613.51 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 64.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,728 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.20 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 60.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,729 INFO L168 Benchmark]: Boogie Preprocessor took 69.73 ms. Allocated memory is still 96.5 MB. Free memory was 60.7 MB in the beginning and 57.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,729 INFO L168 Benchmark]: RCFGBuilder took 1389.36 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 57.9 MB in the beginning and 72.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,730 INFO L168 Benchmark]: BuchiAutomizer took 161263.30 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 72.0 MB in the beginning and 67.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,731 INFO L168 Benchmark]: Witness Printer took 67.86 ms. Allocated memory is still 155.2 MB. Free memory was 67.0 MB in the beginning and 64.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:24,735 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 96.5 MB. Free memory is still 49.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 613.51 ms. Allocated memory is still 96.5 MB. Free memory was 62.7 MB in the beginning and 64.2 MB in the end (delta: -1.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 89.20 ms. Allocated memory is still 96.5 MB. Free memory was 64.2 MB in the beginning and 60.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.73 ms. Allocated memory is still 96.5 MB. Free memory was 60.7 MB in the beginning and 57.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1389.36 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 57.9 MB in the beginning and 72.0 MB in the end (delta: -14.1 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 161263.30 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 72.0 MB in the beginning and 67.0 MB in the end (delta: 5.0 MB). Peak memory consumption was 73.2 MB. Max. memory is 16.1 GB. * Witness Printer took 67.86 ms. Allocated memory is still 155.2 MB. Free memory was 67.0 MB in the beginning and 64.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 189 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 161.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 160.4s. 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 50.8ms AutomataMinimizationTime, 2 MinimizatonAttempts, 105 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 189 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 321 SDtfs, 894 SDslu, 725 SDs, 0 SdLazy, 69 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 285.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 65]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24954} State at position 1 is {NULL=0, NULL=0, NULL=24959, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b798c48=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1245f1e0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@541a089b=0, NULL=24954, NULL=0, NULL=24968, methaneLevelCritical=0, NULL=24973, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67350795=0, retValue_acc=0, tmp___1=0, NULL=24970, NULL=24961, NULL=0, cleanupTimeShifts=4, tmp=0, retValue_acc=0, NULL=24971, NULL=0, NULL=0, waterLevel=1, tmp___0=0, NULL=24965, \result=1, head=0, pumpRunning=0, NULL=24978, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c110f75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1cac82=0, \result=1, NULL=0, NULL=24977, NULL=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=24981, NULL=24956, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e0155bf=0, head=0, tmp=1, NULL=24974, NULL=24964, NULL=24975, NULL=0, NULL=0, NULL=24967, retValue_acc=0, NULL=24963, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69984225=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a54f581=0, NULL=0, tmp___0=0, NULL=24980, NULL=0, tmp=0, NULL=24979, tmp___0=0, NULL=24957, NULL=24955, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=24969, \result=0, NULL=24962, NULL=24982, NULL=0, NULL=0, NULL=0, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e45b306=0, NULL=24960, retValue_acc=1, tmp___2=56, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=24976, NULL=24972, NULL=24966, NULL=24958} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L131] int pumpRunning = 0; [L132] int systemActive = 1; [L513] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L783] int cleanupTimeShifts = 4; [L880] int waterLevel = 1; [L881] int methaneLevelCritical = 0; [L856] int retValue_acc ; [L857] int tmp ; [L748] int retValue_acc ; [L751] retValue_acc = 1 [L752] return (retValue_acc); [L863] tmp = valid_product() [L865] COND TRUE \read(tmp) [L56] int splverifierCounter ; [L57] int tmp ; [L58] int tmp___0 ; [L59] int tmp___1 ; [L60] int tmp___2 ; [L63] splverifierCounter = 0 Loop: [L65] COND TRUE 1 [L67] COND TRUE splverifierCounter < 4 [L73] tmp = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp)) [L83] tmp___0 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___0)) [L93] tmp___2 = __VERIFIER_nondet_int() [L95] COND TRUE \read(tmp___2) [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L194] int tmp ; [L197] COND FALSE !(\read(pumpRunning)) [L168] int tmp ; [L171] COND TRUE ! pumpRunning [L291] int retValue_acc ; [L292] int tmp ; [L293] int tmp___0 ; [L960] int retValue_acc ; [L963] COND TRUE waterLevel < 2 [L964] retValue_acc = 1 [L965] return (retValue_acc); [L297] tmp = isHighWaterSensorDry() [L299] COND TRUE \read(tmp) [L300] tmp___0 = 0 [L304] retValue_acc = tmp___0 [L305] return (retValue_acc); [L173] tmp = isHighWaterLevel() [L175] COND FALSE !(\read(tmp)) [L758] int tmp ; [L759] int tmp___0 ; [L919] int retValue_acc ; [L922] retValue_acc = methaneLevelCritical [L923] return (retValue_acc); [L763] tmp = isMethaneLevelCritical() [L765] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:26:24,808 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3a147e16-6a6f-474e-be2d-0d11f9b2c55b/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...