./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3 --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 e8ba7d2299b085bfa6b1e9d9dcdb27b769836182 .............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-5709675 [2021-10-15 20:13:13,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 20:13:13,735 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 20:13:13,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 20:13:13,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 20:13:13,793 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 20:13:13,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 20:13:13,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 20:13:13,811 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 20:13:13,819 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 20:13:13,820 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 20:13:13,822 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 20:13:13,822 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 20:13:13,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 20:13:13,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 20:13:13,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 20:13:13,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 20:13:13,829 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 20:13:13,831 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 20:13:13,841 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 20:13:13,846 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 20:13:13,848 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 20:13:13,855 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 20:13:13,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 20:13:13,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 20:13:13,866 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 20:13:13,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 20:13:13,868 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 20:13:13,869 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 20:13:13,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 20:13:13,872 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 20:13:13,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 20:13:13,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 20:13:13,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 20:13:13,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 20:13:13,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 20:13:13,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 20:13:13,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 20:13:13,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 20:13:13,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 20:13:13,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 20:13:13,883 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 20:13:13,942 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 20:13:13,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 20:13:13,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 20:13:13,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 20:13:13,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 20:13:13,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 20:13:13,951 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 20:13:13,951 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 20:13:13,952 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 20:13:13,952 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 20:13:13,953 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 20:13:13,954 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 20:13:13,954 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 20:13:13,954 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 20:13:13,954 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 20:13:13,955 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 20:13:13,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 20:13:13,955 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 20:13:13,955 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 20:13:13,956 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 20:13:13,956 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 20:13:13,956 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 20:13:13,956 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 20:13:13,957 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 20:13:13,957 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 20:13:13,957 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 20:13:13,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 20:13:13,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 20:13:13,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 20:13:13,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 20:13:13,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 20:13:13,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 20:13:13,962 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 20:13:13,962 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_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e8ba7d2299b085bfa6b1e9d9dcdb27b769836182 [2021-10-15 20:13:14,303 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 20:13:14,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 20:13:14,329 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 20:13:14,330 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 20:13:14,331 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 20:13:14,332 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-15 20:13:14,423 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/data/3cc6a76f0/cb06149738e84f048d1f66714cdb1de3/FLAG239465afd [2021-10-15 20:13:15,119 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 20:13:15,120 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c [2021-10-15 20:13:15,136 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/data/3cc6a76f0/cb06149738e84f048d1f66714cdb1de3/FLAG239465afd [2021-10-15 20:13:15,411 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/data/3cc6a76f0/cb06149738e84f048d1f66714cdb1de3 [2021-10-15 20:13:15,414 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 20:13:15,415 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 20:13:15,418 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 20:13:15,418 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 20:13:15,422 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 20:13:15,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:15" (1/1) ... [2021-10-15 20:13:15,426 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffd5d13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:15, skipping insertion in model container [2021-10-15 20:13:15,426 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:13:15" (1/1) ... [2021-10-15 20:13:15,434 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 20:13:15,502 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 20:13:15,851 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_daf5739b-1341-4606-b18a-332e9549b02c/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-15 20:13:15,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:13:15,871 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 20:13:16,023 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_daf5739b-1341-4606-b18a-332e9549b02c/sv-benchmarks/c/product-lines/minepump_spec1_product49.cil.c[18430,18443] [2021-10-15 20:13:16,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 20:13:16,050 INFO L208 MainTranslator]: Completed translation [2021-10-15 20:13:16,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16 WrapperNode [2021-10-15 20:13:16,051 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 20:13:16,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 20:13:16,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 20:13:16,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 20:13:16,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 20:13:16,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 20:13:16,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 20:13:16,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 20:13:16,179 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,179 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,185 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,185 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,238 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 20:13:16,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 20:13:16,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 20:13:16,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 20:13:16,265 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (1/1) ... [2021-10-15 20:13:16,274 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 20:13:16,286 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 20:13:16,299 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 20:13:16,306 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 20:13:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 20:13:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 20:13:16,345 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 20:13:16,346 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 20:13:17,493 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 20:13:17,493 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-10-15 20:13:17,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:17 BoogieIcfgContainer [2021-10-15 20:13:17,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 20:13:17,498 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 20:13:17,498 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 20:13:17,503 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 20:13:17,504 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:13:17,504 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 08:13:15" (1/3) ... [2021-10-15 20:13:17,506 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b6f78c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:13:17, skipping insertion in model container [2021-10-15 20:13:17,506 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:13:17,506 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:13:16" (2/3) ... [2021-10-15 20:13:17,507 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@b6f78c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 08:13:17, skipping insertion in model container [2021-10-15 20:13:17,507 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 20:13:17,507 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:17" (3/3) ... [2021-10-15 20:13:17,509 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product49.cil.c [2021-10-15 20:13:17,572 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 20:13:17,572 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 20:13:17,572 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 20:13:17,572 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 20:13:17,573 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 20:13:17,573 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 20:13:17,573 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 20:13:17,573 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 20:13:17,602 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-15 20:13:17,647 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-15 20:13:17,648 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:13:17,648 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:13:17,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:13:17,658 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:13:17,658 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 20:13:17,660 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-15 20:13:17,678 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-15 20:13:17,678 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:13:17,678 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:13:17,680 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:13:17,680 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:13:17,693 INFO L791 eck$LassoCheckResult]: Stem: 104#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 29#L839true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 93#L847true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 57#L169true assume 0 != main_~tmp~1; 87#L142true havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 97#L61-1true [2021-10-15 20:13:17,694 INFO L793 eck$LassoCheckResult]: Loop: 97#L61-1true assume !false; 66#L763true assume test_~splverifierCounter~0 < 4; 110#L764true test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 4#L772true assume !(0 != test_~tmp~9); 16#L772-1true test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 106#L782true assume !(0 != test_~tmp___0~3); 70#L782-1true test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 13#L792true assume 0 != test_~tmp___2~0; 17#L798-2true assume !(0 != ~pumpRunning~0); 76#L562true assume !(0 != ~systemActive~0); 30#L569true havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 10#L896true __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 68#L61true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 97#L61-1true [2021-10-15 20:13:17,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:17,701 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-15 20:13:17,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:17,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776504651] [2021-10-15 20:13:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:17,713 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:18,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:18,064 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:18,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:18,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:13:18,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:18,297 INFO L82 PathProgramCache]: Analyzing trace with hash -1679775166, now seen corresponding path program 1 times [2021-10-15 20:13:18,297 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:18,297 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062252858] [2021-10-15 20:13:18,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:18,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:18,310 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:18,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:18,329 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:13:18,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:18,334 INFO L82 PathProgramCache]: Analyzing trace with hash 34503772, now seen corresponding path program 1 times [2021-10-15 20:13:18,334 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:18,337 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668414349] [2021-10-15 20:13:18,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:18,338 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:18,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:13:18,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:13:18,531 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:13:18,533 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668414349] [2021-10-15 20:13:18,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668414349] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:13:18,534 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:13:18,534 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-15 20:13:18,535 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382496018] [2021-10-15 20:13:18,675 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:13:18,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-15 20:13:18,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-15 20:13:18,695 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-15 20:13:18,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:13:18,938 INFO L93 Difference]: Finished difference Result 114 states and 163 transitions. [2021-10-15 20:13:18,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-15 20:13:18,940 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 163 transitions. [2021-10-15 20:13:18,944 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-15 20:13:18,950 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2021-10-15 20:13:18,951 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-10-15 20:13:18,952 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2021-10-15 20:13:18,953 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2021-10-15 20:13:18,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:13:18,954 INFO L681 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-15 20:13:18,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2021-10-15 20:13:18,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-15 20:13:18,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.4579439252336448) internal successors, (156), 106 states have internal predecessors, (156), 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) [2021-10-15 20:13:18,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-10-15 20:13:18,992 INFO L704 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-15 20:13:18,992 INFO L587 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-15 20:13:18,992 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 20:13:18,992 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2021-10-15 20:13:18,994 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-15 20:13:18,994 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:13:18,994 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:13:18,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:13:18,995 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 20:13:18,995 INFO L791 eck$LassoCheckResult]: Stem: 352#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 304#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 289#L839 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 290#L847 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 323#L169 assume 0 != main_~tmp~1; 324#L142 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 338#L61-1 [2021-10-15 20:13:18,996 INFO L793 eck$LassoCheckResult]: Loop: 338#L61-1 assume !false; 334#L763 assume test_~splverifierCounter~0 < 4; 335#L764 test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 246#L772 assume !(0 != test_~tmp~9); 248#L772-1 test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 269#L782 assume !(0 != test_~tmp___0~3); 298#L782-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 262#L792 assume 0 != test_~tmp___2~0; 263#L798-2 assume !(0 != ~pumpRunning~0); 270#L562 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 322#L620 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 303#L594-1 assume !(0 == ~pumpRunning~0); 291#L569 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 256#L896 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 257#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 338#L61-1 [2021-10-15 20:13:18,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:18,996 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-15 20:13:18,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:18,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562287087] [2021-10-15 20:13:18,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:18,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:19,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,052 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:19,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,139 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:13:19,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:19,140 INFO L82 PathProgramCache]: Analyzing trace with hash -1996917024, now seen corresponding path program 1 times [2021-10-15 20:13:19,141 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:19,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872956082] [2021-10-15 20:13:19,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:19,142 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:19,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 20:13:19,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 20:13:19,159 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 20:13:19,159 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872956082] [2021-10-15 20:13:19,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872956082] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 20:13:19,160 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 20:13:19,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 20:13:19,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630587045] [2021-10-15 20:13:19,161 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 20:13:19,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 20:13:19,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 20:13:19,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 20:13:19,163 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 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) [2021-10-15 20:13:19,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 20:13:19,274 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2021-10-15 20:13:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 20:13:19,276 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2021-10-15 20:13:19,278 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-15 20:13:19,281 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2021-10-15 20:13:19,281 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2021-10-15 20:13:19,282 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2021-10-15 20:13:19,282 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2021-10-15 20:13:19,283 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 20:13:19,283 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-15 20:13:19,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2021-10-15 20:13:19,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-15 20:13:19,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3783783783783783) internal successors, (204), 147 states have internal predecessors, (204), 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) [2021-10-15 20:13:19,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2021-10-15 20:13:19,295 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-15 20:13:19,295 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-15 20:13:19,295 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 20:13:19,295 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2021-10-15 20:13:19,297 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-15 20:13:19,297 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 20:13:19,297 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 20:13:19,298 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 20:13:19,298 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] [2021-10-15 20:13:19,299 INFO L791 eck$LassoCheckResult]: Stem: 618#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~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(13);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(110, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 2 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(102, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 3 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string55.base, #t~string55.offset, 1);call write~init~int(80, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(117, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(109, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(112, #t~string55.base, 4 + #t~string55.offset, 1);call write~init~int(58, #t~string55.base, 5 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 6 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(110, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(102, #t~string59.base, 2 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 3 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string61.base, #t~string61.offset, 1);call write~init~int(32, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 2 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string63.base, #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 1 + #t~string63.offset, 1);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);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 564#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 550#L839 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 551#L847 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 585#L169 assume 0 != main_~tmp~1; 586#L142 havoc test_#t~nondet66, test_#t~nondet67, test_#t~nondet68, test_#t~nondet69, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 612#L61-1 [2021-10-15 20:13:19,299 INFO L793 eck$LassoCheckResult]: Loop: 612#L61-1 assume !false; 596#L763 assume test_~splverifierCounter~0 < 4; 597#L764 test_~tmp~9 := test_#t~nondet66;havoc test_#t~nondet66; 507#L772 assume !(0 != test_~tmp~9); 509#L772-1 test_~tmp___0~3 := test_#t~nondet67;havoc test_#t~nondet67; 530#L782 assume !(0 != test_~tmp___0~3); 558#L782-1 test_~tmp___2~0 := test_#t~nondet68;havoc test_#t~nondet68; 523#L792 assume 0 != test_~tmp___2~0; 524#L798-2 assume !(0 != ~pumpRunning~0); 531#L562 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 584#L620 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret45, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 563#L594-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret64, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 528#L936-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 529#L941-1 isHighWaterLevel_#t~ret64 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret64;havoc isHighWaterLevel_#t~ret64; 519#L722-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 520#L722-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 582#L728-1 processEnvironment__wrappee__highWaterSensor_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret45;havoc processEnvironment__wrappee__highWaterSensor_#t~ret45; 583#L598-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 565#L569 havoc __utac_acc__Specification1_spec__1_#t~ret7, __utac_acc__Specification1_spec__1_#t~ret8, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~10;havoc isMethaneLevelCritical_~retValue_acc~10;isMethaneLevelCritical_~retValue_acc~10 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~10; 638#L896 __utac_acc__Specification1_spec__1_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret7;havoc __utac_acc__Specification1_spec__1_#t~ret7; 636#L61 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 612#L61-1 [2021-10-15 20:13:19,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:19,300 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-15 20:13:19,300 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:19,301 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713840516] [2021-10-15 20:13:19,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:19,301 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:19,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,346 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,399 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:13:19,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:19,400 INFO L82 PathProgramCache]: Analyzing trace with hash 1058929100, now seen corresponding path program 1 times [2021-10-15 20:13:19,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:19,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047839169] [2021-10-15 20:13:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:19,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:19,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,406 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:19,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,415 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:13:19,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 20:13:19,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1515000294, now seen corresponding path program 1 times [2021-10-15 20:13:19,417 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 20:13:19,417 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922587484] [2021-10-15 20:13:19,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 20:13:19,417 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 20:13:19,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,454 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 20:13:19,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 20:13:19,514 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 20:14:30,919 WARN L207 SmtUtils]: Spent 1.19 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-15 20:15:47,153 WARN L207 SmtUtils]: Spent 37.68 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-15 20:15:47,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 08:15:47 BoogieIcfgContainer [2021-10-15 20:15:47,385 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 20:15:47,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 20:15:47,386 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 20:15:47,386 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 20:15:47,387 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:13:17" (3/4) ... [2021-10-15 20:15:47,390 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 20:15:47,463 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 20:15:47,464 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 20:15:47,465 INFO L168 Benchmark]: Toolchain (without parser) took 152049.14 ms. Allocated memory was 79.7 MB in the beginning and 130.0 MB in the end (delta: 50.3 MB). Free memory was 42.6 MB in the beginning and 37.6 MB in the end (delta: 5.0 MB). Peak memory consumption was 54.6 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,473 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 20:15:47,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.61 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 42.4 MB in the beginning and 69.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 111.47 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 65.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,476 INFO L168 Benchmark]: Boogie Preprocessor took 71.89 ms. Allocated memory is still 100.7 MB. Free memory was 65.6 MB in the beginning and 63.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,477 INFO L168 Benchmark]: RCFGBuilder took 1243.76 ms. Allocated memory is still 100.7 MB. Free memory was 63.2 MB in the beginning and 61.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,477 INFO L168 Benchmark]: BuchiAutomizer took 149886.72 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 61.0 MB in the beginning and 39.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,478 INFO L168 Benchmark]: Witness Printer took 78.56 ms. Allocated memory is still 130.0 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 20:15:47,485 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 79.7 MB. Free memory was 60.1 MB in the beginning and 60.1 MB in the end (delta: 41.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 633.61 ms. Allocated memory was 79.7 MB in the beginning and 100.7 MB in the end (delta: 21.0 MB). Free memory was 42.4 MB in the beginning and 69.1 MB in the end (delta: -26.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 111.47 ms. Allocated memory is still 100.7 MB. Free memory was 69.1 MB in the beginning and 65.6 MB in the end (delta: 3.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.89 ms. Allocated memory is still 100.7 MB. Free memory was 65.6 MB in the beginning and 63.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1243.76 ms. Allocated memory is still 100.7 MB. Free memory was 63.2 MB in the beginning and 61.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 32.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 149886.72 ms. Allocated memory was 100.7 MB in the beginning and 130.0 MB in the end (delta: 29.4 MB). Free memory was 61.0 MB in the beginning and 39.7 MB in the end (delta: 21.3 MB). Peak memory consumption was 64.2 MB. Max. memory is 16.1 GB. * Witness Printer took 78.56 ms. Allocated memory is still 130.0 MB. Free memory was 39.7 MB in the beginning and 37.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 149.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 149.2s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 33.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 316 SDtfs, 584 SDslu, 68 SDs, 0 SdLazy, 38 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 251.6ms 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: 762]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21456} State at position 1 is {NULL=0, NULL=21481, NULL=0, NULL=21456, NULL=0, NULL=0, methaneLevelCritical=0, NULL=21476, NULL=21463, tmp___1=0, tmp=0, NULL=21460, retValue_acc=0, NULL=0, NULL=21470, cleanupTimeShifts=4, NULL=21480, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7af93571=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fd124f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@643417eb=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1746e682=0, head=0, pumpRunning=0, NULL=21472, NULL=21473, tmp=1, NULL=0, tmp=0, \result=1, NULL=0, NULL=21475, NULL=0, NULL=0, NULL=0, tmp=1, tmp___0=0, NULL=21465, NULL=21474, NULL=21471, head=0, NULL=0, tmp=0, NULL=21461, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=21477, NULL=21467, NULL=21478, NULL=21464, NULL=0, tmp___0=0, NULL=21482, NULL=21479, NULL=0, tmp___0=0, NULL=21468, NULL=21459, tmp=0, NULL=21458, NULL=0, NULL=0, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4076d0ac=0, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=21457, NULL=21469, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ceec2f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6caa9d4=55, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3511d080=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bf71002=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ecf1727=0, retValue_acc=1, NULL=21485, retValue_acc=1, tmp___2=55, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=21483, NULL=21462, NULL=21466} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L79] int cleanupTimeShifts = 4; [L352] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L555] int pumpRunning = 0; [L556] int systemActive = 1; [L853] int waterLevel = 1; [L854] int methaneLevelCritical = 0; [L160] int retValue_acc ; [L161] int tmp ; [L843] int retValue_acc ; [L846] retValue_acc = 1 [L847] return (retValue_acc); [L167] tmp = valid_product() [L169] COND TRUE \read(tmp) [L753] int splverifierCounter ; [L754] int tmp ; [L755] int tmp___0 ; [L756] int tmp___1 ; [L757] int tmp___2 ; [L760] splverifierCounter = 0 Loop: [L762] COND TRUE 1 [L764] COND TRUE splverifierCounter < 4 [L770] tmp = __VERIFIER_nondet_int() [L772] COND FALSE !(\read(tmp)) [L780] tmp___0 = __VERIFIER_nondet_int() [L782] COND FALSE !(\read(tmp___0)) [L790] tmp___2 = __VERIFIER_nondet_int() [L792] COND TRUE \read(tmp___2) [L562] COND FALSE !(\read(pumpRunning)) [L569] COND TRUE \read(systemActive) [L617] int tmp ; [L620] COND FALSE !(\read(pumpRunning)) [L591] int tmp ; [L594] COND TRUE ! pumpRunning [L714] int retValue_acc ; [L715] int tmp ; [L716] int tmp___0 ; [L933] int retValue_acc ; [L936] COND TRUE waterLevel < 2 [L937] retValue_acc = 1 [L938] return (retValue_acc); [L720] tmp = isHighWaterSensorDry() [L722] COND TRUE \read(tmp) [L723] tmp___0 = 0 [L727] retValue_acc = tmp___0 [L728] return (retValue_acc); [L596] tmp = isHighWaterLevel() [L598] COND FALSE !(\read(tmp)) [L54] int tmp ; [L55] int tmp___0 ; [L892] int retValue_acc ; [L895] retValue_acc = methaneLevelCritical [L896] return (retValue_acc); [L59] tmp = isMethaneLevelCritical() [L61] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 20:15:47,594 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_daf5739b-1341-4606-b18a-332e9549b02c/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...