./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d92162b9d577c75e7ec1bed677680510b83ae329 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:06:23,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:06:23,497 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:06:23,533 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:06:23,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:06:23,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:06:23,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:06:23,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:06:23,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:06:23,541 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:06:23,542 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:06:23,544 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:06:23,544 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:06:23,545 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:06:23,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:06:23,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:06:23,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:06:23,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:06:23,553 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:06:23,555 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:06:23,557 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:06:23,560 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:06:23,561 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:06:23,562 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:06:23,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:06:23,567 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:06:23,567 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:06:23,568 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:06:23,569 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:06:23,570 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:06:23,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:06:23,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:06:23,572 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:06:23,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:06:23,576 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:06:23,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:06:23,577 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:06:23,578 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:06:23,578 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:06:23,579 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:06:23,580 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:06:23,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:06:23,618 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:06:23,618 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:06:23,618 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:06:23,619 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:06:23,620 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:06:23,620 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:06:23,620 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:06:23,620 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:06:23,621 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:06:23,621 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:06:23,621 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:06:23,621 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:06:23,621 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:06:23,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:06:23,622 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:06:23,622 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:06:23,622 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:06:23,623 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:06:23,623 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:06:23,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:06:23,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:06:23,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:06:23,624 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:06:23,624 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:06:23,624 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:06:23,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:06:23,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:06:23,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:06:23,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:06:23,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:06:23,625 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:06:23,626 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:06:23,627 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:06:23,627 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_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d92162b9d577c75e7ec1bed677680510b83ae329 [2021-10-13 01:06:23,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:06:23,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:06:23,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:06:23,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:06:23,918 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:06:23,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2021-10-13 01:06:24,007 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/data/c26d0fa20/0461c02ec52747adb3e6b394cbb905a4/FLAG36cde0157 [2021-10-13 01:06:24,522 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:06:24,523 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c [2021-10-13 01:06:24,539 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/data/c26d0fa20/0461c02ec52747adb3e6b394cbb905a4/FLAG36cde0157 [2021-10-13 01:06:24,839 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/data/c26d0fa20/0461c02ec52747adb3e6b394cbb905a4 [2021-10-13 01:06:24,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:06:24,847 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:06:24,850 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:24,850 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:06:24,854 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:06:24,855 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:24" (1/1) ... [2021-10-13 01:06:24,856 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bad08f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:24, skipping insertion in model container [2021-10-13 01:06:24,856 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:06:24" (1/1) ... [2021-10-13 01:06:24,865 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:06:24,910 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:06:25,088 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_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[1817,1830] [2021-10-13 01:06:25,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:25,192 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:06:25,207 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_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/sv-benchmarks/c/product-lines/minepump_spec3_product05.cil.c[1817,1830] [2021-10-13 01:06:25,265 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:06:25,283 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:06:25,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25 WrapperNode [2021-10-13 01:06:25,284 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:06:25,285 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:25,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:06:25,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:06:25,292 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,308 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,356 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:06:25,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:06:25,357 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:06:25,357 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:06:25,365 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,378 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:06:25,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:06:25,415 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:06:25,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:06:25,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (1/1) ... [2021-10-13 01:06:25,424 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:06:25,435 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:06:25,452 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:06:25,487 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:06:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:06:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:06:25,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:06:25,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:06:26,246 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:06:26,247 INFO L299 CfgBuilder]: Removed 102 assume(true) statements. [2021-10-13 01:06:26,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:26 BoogieIcfgContainer [2021-10-13 01:06:26,249 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:06:26,250 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:06:26,250 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:06:26,255 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:06:26,255 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:26,256 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:06:24" (1/3) ... [2021-10-13 01:06:26,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ba3b5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:26, skipping insertion in model container [2021-10-13 01:06:26,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:26,257 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:06:25" (2/3) ... [2021-10-13 01:06:26,257 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ba3b5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:06:26, skipping insertion in model container [2021-10-13 01:06:26,257 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:06:26,258 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:26" (3/3) ... [2021-10-13 01:06:26,259 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product05.cil.c [2021-10-13 01:06:26,307 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:06:26,307 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:06:26,307 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:06:26,307 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:06:26,308 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:06:26,308 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:06:26,308 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:06:26,308 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:06:26,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:26,345 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 01:06:26,345 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:26,345 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:26,351 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:26,351 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:26,351 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:06:26,352 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:26,368 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 45 [2021-10-13 01:06:26,369 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:26,369 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:26,369 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:26,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:26,374 INFO L791 eck$LassoCheckResult]: Stem: 52#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 37#L-1true havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 51#L67true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 61#L75true main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 73#L381true assume 0 != main_~tmp~2; 11#L358true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 69#L857-1true [2021-10-13 01:06:26,375 INFO L793 eck$LassoCheckResult]: Loop: 69#L857-1true assume !false; 27#L245true assume test_~splverifierCounter~0 < 4; 70#L246true test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 56#L254true assume !(0 != test_~tmp~1); 8#L254-1true test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 66#L264true assume !(0 != test_~tmp___0~0); 16#L264-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 19#L274true assume 0 != test_~tmp___2~0; 36#L280-2true assume !(0 != ~pumpRunning~0); 17#L105true assume !(0 != ~systemActive~0); 55#L112true havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 22#L805-1true __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 14#L851true assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 69#L857-1true [2021-10-13 01:06:26,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:26,380 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:06:26,389 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:26,389 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954160990] [2021-10-13 01:06:26,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:26,390 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:26,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:26,658 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:26,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:26,848 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:26,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:26,851 INFO L82 PathProgramCache]: Analyzing trace with hash -1681899275, now seen corresponding path program 1 times [2021-10-13 01:06:26,851 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:26,851 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494140620] [2021-10-13 01:06:26,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:26,852 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:26,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:26,861 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:26,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:26,869 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:26,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:26,873 INFO L82 PathProgramCache]: Analyzing trace with hash 32379663, now seen corresponding path program 1 times [2021-10-13 01:06:26,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:26,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102105791] [2021-10-13 01:06:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:26,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:26,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:27,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:27,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:27,019 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102105791] [2021-10-13 01:06:27,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102105791] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:27,020 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:27,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:06:27,021 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968353624] [2021-10-13 01:06:27,183 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:27,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:06:27,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:06:27,215 INFO L87 Difference]: Start difference. First operand has 72 states, 71 states have (on average 1.5211267605633803) internal successors, (108), 71 states have internal predecessors, (108), 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) [2021-10-13 01:06:27,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:27,455 INFO L93 Difference]: Finished difference Result 72 states and 97 transitions. [2021-10-13 01:06:27,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:06:27,458 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 72 states and 97 transitions. [2021-10-13 01:06:27,462 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 01:06:27,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 72 states to 65 states and 90 transitions. [2021-10-13 01:06:27,473 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 65 [2021-10-13 01:06:27,474 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 65 [2021-10-13 01:06:27,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 65 states and 90 transitions. [2021-10-13 01:06:27,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:27,475 INFO L681 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 01:06:27,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states and 90 transitions. [2021-10-13 01:06:27,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2021-10-13 01:06:27,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 65 states have (on average 1.3846153846153846) internal successors, (90), 64 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:27,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2021-10-13 01:06:27,519 INFO L704 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 01:06:27,519 INFO L587 BuchiCegarLoop]: Abstraction has 65 states and 90 transitions. [2021-10-13 01:06:27,519 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:06:27,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 65 states and 90 transitions. [2021-10-13 01:06:27,523 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 43 [2021-10-13 01:06:27,523 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:27,524 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:27,524 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:27,524 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:27,525 INFO L791 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 207#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 208#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 220#L75 main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 225#L381 assume 0 != main_~tmp~2; 181#L358 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 177#L857-1 [2021-10-13 01:06:27,525 INFO L793 eck$LassoCheckResult]: Loop: 177#L857-1 assume !false; 198#L245 assume test_~splverifierCounter~0 < 4; 199#L246 test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 224#L254 assume !(0 != test_~tmp~1); 165#L254-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 171#L264 assume !(0 != test_~tmp___0~0); 183#L264-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 186#L274 assume 0 != test_~tmp___2~0; 190#L280-2 assume !(0 != ~pumpRunning~0); 170#L105 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 187#L137 assume !(0 != ~pumpRunning~0); 214#L112 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 194#L805-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 176#L851 assume 0 != __utac_acc__Specification3_spec__1_~tmp~6; 177#L857-1 [2021-10-13 01:06:27,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:27,526 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:06:27,526 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:27,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839493046] [2021-10-13 01:06:27,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:27,530 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:27,597 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:27,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:27,686 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:27,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:27,687 INFO L82 PathProgramCache]: Analyzing trace with hash -619797874, now seen corresponding path program 1 times [2021-10-13 01:06:27,687 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:27,687 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131410024] [2021-10-13 01:06:27,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:27,688 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:27,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:27,693 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:27,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:27,699 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:27,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:27,700 INFO L82 PathProgramCache]: Analyzing trace with hash 983241652, now seen corresponding path program 1 times [2021-10-13 01:06:27,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:27,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600949173] [2021-10-13 01:06:27,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:27,707 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:27,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:06:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:06:27,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:06:27,765 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600949173] [2021-10-13 01:06:27,765 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600949173] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:06:27,765 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:06:27,765 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:06:27,766 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539727430] [2021-10-13 01:06:27,846 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:06:27,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:06:27,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:06:27,847 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. cyclomatic complexity: 27 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:28,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:06:28,008 INFO L93 Difference]: Finished difference Result 211 states and 300 transitions. [2021-10-13 01:06:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:06:28,009 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 300 transitions. [2021-10-13 01:06:28,021 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 145 [2021-10-13 01:06:28,028 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 300 transitions. [2021-10-13 01:06:28,028 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2021-10-13 01:06:28,030 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2021-10-13 01:06:28,031 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 300 transitions. [2021-10-13 01:06:28,036 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:28,037 INFO L681 BuchiCegarLoop]: Abstraction has 211 states and 300 transitions. [2021-10-13 01:06:28,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 300 transitions. [2021-10-13 01:06:28,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 124. [2021-10-13 01:06:28,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 124 states have (on average 1.3709677419354838) internal successors, (170), 123 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:28,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 170 transitions. [2021-10-13 01:06:28,058 INFO L704 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2021-10-13 01:06:28,058 INFO L587 BuchiCegarLoop]: Abstraction has 124 states and 170 transitions. [2021-10-13 01:06:28,058 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:06:28,058 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 124 states and 170 transitions. [2021-10-13 01:06:28,061 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 86 [2021-10-13 01:06:28,061 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:28,061 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:28,062 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:06:28,062 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:28,062 INFO L791 eck$LassoCheckResult]: Stem: 524#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(30);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(9);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(30);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(9);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 506#L-1 havoc main_#res;havoc main_#t~ret30, main_~retValue_acc~4, main_~tmp~2;havoc main_~retValue_acc~4;havoc main_~tmp~2; 507#L67 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 523#L75 main_#t~ret30 := valid_product_#res;main_~tmp~2 := main_#t~ret30;havoc main_#t~ret30; 533#L381 assume 0 != main_~tmp~2; 470#L358 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 471#L857-1 [2021-10-13 01:06:28,063 INFO L793 eck$LassoCheckResult]: Loop: 471#L857-1 assume !false; 494#L245 assume test_~splverifierCounter~0 < 4; 495#L246 test_~tmp~1 := test_#t~nondet26;havoc test_#t~nondet26; 529#L254 assume !(0 != test_~tmp~1); 459#L254-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 465#L264 assume !(0 != test_~tmp___0~0); 480#L264-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 481#L274 assume 0 != test_~tmp___2~0; 485#L280-2 assume !(0 != ~pumpRunning~0); 464#L105 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 482#L137 assume !(0 != ~pumpRunning~0); 515#L112 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~6, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~6;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 528#L805-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~6 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 474#L851 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~6);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 475#L837 __utac_acc__Specification3_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 501#L857 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 471#L857-1 [2021-10-13 01:06:28,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:28,063 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:06:28,064 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:28,064 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333100083] [2021-10-13 01:06:28,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:28,064 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,123 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:28,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,180 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:28,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:28,181 INFO L82 PathProgramCache]: Analyzing trace with hash 1374702912, now seen corresponding path program 1 times [2021-10-13 01:06:28,181 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:28,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990948928] [2021-10-13 01:06:28,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:28,182 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:28,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,187 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:28,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,192 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:28,193 INFO L82 PathProgramCache]: Analyzing trace with hash 2428134, now seen corresponding path program 1 times [2021-10-13 01:06:28,193 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:28,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667711990] [2021-10-13 01:06:28,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:28,194 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:28,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,227 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:28,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:28,293 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:26,571 WARN L207 SmtUtils]: Spent 58.10 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:08:27,370 WARN L207 SmtUtils]: Spent 30.56 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:08:27,522 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:08:27 BoogieIcfgContainer [2021-10-13 01:08:27,522 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:08:27,523 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:08:27,523 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:08:27,523 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:08:27,524 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:06:26" (3/4) ... [2021-10-13 01:08:27,526 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:08:27,585 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:08:27,585 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:08:27,587 INFO L168 Benchmark]: Toolchain (without parser) took 122738.64 ms. Allocated memory was 96.5 MB in the beginning and 167.8 MB in the end (delta: 71.3 MB). Free memory was 62.0 MB in the beginning and 75.9 MB in the end (delta: -14.0 MB). Peak memory consumption was 56.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,587 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:08:27,588 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.96 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 61.7 MB in the beginning and 98.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,589 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.22 ms. Allocated memory is still 132.1 MB. Free memory was 98.9 MB in the beginning and 96.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,589 INFO L168 Benchmark]: Boogie Preprocessor took 57.52 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 94.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:08:27,590 INFO L168 Benchmark]: RCFGBuilder took 833.92 ms. Allocated memory is still 132.1 MB. Free memory was 93.8 MB in the beginning and 58.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,591 INFO L168 Benchmark]: BuchiAutomizer took 121272.85 ms. Allocated memory was 132.1 MB in the beginning and 167.8 MB in the end (delta: 35.7 MB). Free memory was 57.5 MB in the beginning and 79.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,592 INFO L168 Benchmark]: Witness Printer took 62.49 ms. Allocated memory is still 167.8 MB. Free memory was 78.0 MB in the beginning and 75.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:27,596 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 96.5 MB. Free memory is still 51.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 433.96 ms. Allocated memory was 96.5 MB in the beginning and 132.1 MB in the end (delta: 35.7 MB). Free memory was 61.7 MB in the beginning and 98.9 MB in the end (delta: -37.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.22 ms. Allocated memory is still 132.1 MB. Free memory was 98.9 MB in the beginning and 96.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.52 ms. Allocated memory is still 132.1 MB. Free memory was 95.9 MB in the beginning and 94.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 833.92 ms. Allocated memory is still 132.1 MB. Free memory was 93.8 MB in the beginning and 58.1 MB in the end (delta: 35.7 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 121272.85 ms. Allocated memory was 132.1 MB in the beginning and 167.8 MB in the end (delta: 35.7 MB). Free memory was 57.5 MB in the beginning and 79.1 MB in the end (delta: -21.6 MB). Peak memory consumption was 57.3 MB. Max. memory is 16.1 GB. * Witness Printer took 62.49 ms. Allocated memory is still 167.8 MB. Free memory was 78.0 MB in the beginning and 75.9 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 124 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 121.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 120.5s. 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 51.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 87 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 124 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 202 SDtfs, 671 SDslu, 327 SDs, 0 SdLazy, 87 SolverSat, 25 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 254.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 244]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24264} State at position 1 is {NULL=24286, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6231134b=0, NULL=24264, retValue_acc=0, NULL=24269, NULL=0, NULL=0, NULL=24292, NULL=24280, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f0b26a9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cd98c4e=0, NULL=0, NULL=0, tmp___1=0, NULL=24277, NULL=0, NULL=0, cleanupTimeShifts=4, tmp=0, NULL=24278, NULL=24274, NULL=24288, NULL=24276, tmp___0=1, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=24271, \result=1, NULL=24267, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1245aa3a=0, retValue_acc=0, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=24270, NULL=0, NULL=0, NULL=24283, \result=1, head=0, pumpRunning=0, NULL=24275, \result=0, NULL=24285, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e44436a=0, NULL=24287, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@609d4a12=69, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@796281a7=0, NULL=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7320eb26=0, NULL=0, NULL=0, NULL=24272, NULL=24290, NULL=0, NULL=24265, NULL=0, retValue_acc=1, NULL=24282, retValue_acc=1, tmp___2=69, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40405f79=0, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=24266, NULL=24281, tmp=0, NULL=24268, tmp___1=0, head=0, NULL=24279, NULL=0, NULL=0, NULL=24291, NULL=24284, NULL=24289, NULL=24273} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int pumpRunning = 0; [L98] int systemActive = 1; [L299] int cleanupTimeShifts = 4; [L564] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int waterLevel = 1; [L763] int methaneLevelCritical = 0; [L372] int retValue_acc ; [L373] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L379] tmp = valid_product() [L381] COND TRUE \read(tmp) [L235] int splverifierCounter ; [L236] int tmp ; [L237] int tmp___0 ; [L238] int tmp___1 ; [L239] int tmp___2 ; [L242] splverifierCounter = 0 Loop: [L244] COND TRUE 1 [L246] COND TRUE splverifierCounter < 4 [L252] tmp = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp)) [L262] tmp___0 = __VERIFIER_nondet_int() [L264] COND FALSE !(\read(tmp___0)) [L272] tmp___2 = __VERIFIER_nondet_int() [L274] COND TRUE \read(tmp___2) [L105] COND FALSE !(\read(pumpRunning)) [L112] COND TRUE \read(systemActive) [L134] int tmp ; [L137] COND FALSE !(\read(pumpRunning)) [L843] int tmp ; [L844] int tmp___0 ; [L845] int tmp___1 ; [L801] int retValue_acc ; [L804] retValue_acc = methaneLevelCritical [L805] return (retValue_acc); [L849] tmp = isMethaneLevelCritical() [L851] COND FALSE !(\read(tmp)) [L833] int retValue_acc ; [L836] retValue_acc = waterLevel [L837] return (retValue_acc); [L855] tmp___0 = getWaterLevel() [L857] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:08:27,671 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f8ca33c9-f348-4efd-9100-a5b2728d1fb1/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...