./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/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 1fc4b6513d54dfae6e097800b1200a0f44455272 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 01:20:16,363 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:20:16,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:20:16,420 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:20:16,420 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:20:16,426 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:20:16,429 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:20:16,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:20:16,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:20:16,449 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:20:16,449 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:20:16,451 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:20:16,451 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:20:16,453 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:20:16,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:20:16,457 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:20:16,458 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:20:16,459 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:20:16,462 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:20:16,465 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:20:16,467 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:20:16,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:20:16,470 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:20:16,472 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:20:16,476 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:20:16,477 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:20:16,477 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:20:16,479 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:20:16,480 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:20:16,481 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:20:16,482 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:20:16,483 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:20:16,484 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:20:16,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:20:16,487 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:20:16,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:20:16,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:20:16,489 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:20:16,489 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:20:16,490 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:20:16,491 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:20:16,492 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:20:16,526 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:20:16,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:20:16,527 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:20:16,527 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:20:16,529 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:20:16,529 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:20:16,529 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:20:16,529 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:20:16,530 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:20:16,530 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:20:16,530 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:20:16,530 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:20:16,531 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:20:16,531 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:20:16,531 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:20:16,531 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:20:16,532 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:20:16,532 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:20:16,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:20:16,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:20:16,533 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:20:16,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:20:16,533 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:20:16,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:20:16,533 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:20:16,534 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:20:16,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:20:16,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:20:16,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:20:16,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:20:16,535 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:20:16,535 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:20:16,537 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:20:16,537 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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1fc4b6513d54dfae6e097800b1200a0f44455272 [2021-10-13 01:20:16,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:20:16,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:20:16,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:20:16,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:20:16,942 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:20:16,944 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2021-10-13 01:20:17,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/data/a898817d9/470828d896ba4a599c157537c19ceedf/FLAG379101eab [2021-10-13 01:20:17,722 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:20:17,730 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c [2021-10-13 01:20:17,757 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/data/a898817d9/470828d896ba4a599c157537c19ceedf/FLAG379101eab [2021-10-13 01:20:17,954 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/data/a898817d9/470828d896ba4a599c157537c19ceedf [2021-10-13 01:20:17,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:20:17,965 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:20:17,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:17,971 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:20:17,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:20:17,978 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:17" (1/1) ... [2021-10-13 01:20:17,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cf3363a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:17, skipping insertion in model container [2021-10-13 01:20:17,981 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:20:17" (1/1) ... [2021-10-13 01:20:17,991 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:20:18,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:20:18,537 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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17654,17667] [2021-10-13 01:20:18,543 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:18,566 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:20:18,713 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_a8d1ee90-e397-49bd-98d6-d5bcd3715364/sv-benchmarks/c/product-lines/minepump_spec3_product41.cil.c[17654,17667] [2021-10-13 01:20:18,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:20:18,750 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:20:18,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18 WrapperNode [2021-10-13 01:20:18,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:20:18,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:18,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:20:18,754 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:20:18,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,882 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:20:18,889 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:20:18,890 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:20:18,890 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:20:18,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,922 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,976 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:20:18,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:20:18,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:20:18,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:20:18,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (1/1) ... [2021-10-13 01:20:18,992 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:20:19,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:20:19,024 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:20:19,040 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:20:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:20:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:20:19,076 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:20:19,076 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:20:20,178 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:20:20,179 INFO L299 CfgBuilder]: Removed 120 assume(true) statements. [2021-10-13 01:20:20,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:20 BoogieIcfgContainer [2021-10-13 01:20:20,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:20:20,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:20:20,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:20:20,187 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:20:20,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:20:20,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:20:17" (1/3) ... [2021-10-13 01:20:20,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57f94202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:20:20, skipping insertion in model container [2021-10-13 01:20:20,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:20:20,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:20:18" (2/3) ... [2021-10-13 01:20:20,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@57f94202 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:20:20, skipping insertion in model container [2021-10-13 01:20:20,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:20:20,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:20" (3/3) ... [2021-10-13 01:20:20,193 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product41.cil.c [2021-10-13 01:20:20,250 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:20:20,250 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:20:20,250 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:20:20,250 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:20:20,250 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:20:20,251 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:20:20,251 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:20:20,251 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:20:20,273 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 89 states have internal predecessors, (135), 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 01:20:20,303 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-13 01:20:20,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:20:20,304 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:20:20,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:20:20,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:20,315 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:20:20,316 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 90 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 89 states have internal predecessors, (135), 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 01:20:20,324 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 57 [2021-10-13 01:20:20,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:20:20,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:20:20,326 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:20:20,326 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:20,333 INFO L791 eck$LassoCheckResult]: Stem: 73#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 58#L-1true havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 71#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; 85#L75true main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 42#L540true assume 0 != main_~tmp~5; 25#L517true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L345-1true [2021-10-13 01:20:20,334 INFO L793 eck$LassoCheckResult]: Loop: 19#L345-1true assume !false; 37#L274true assume test_~splverifierCounter~0 < 4; 59#L275true test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 46#L283true assume !(0 != test_~tmp~3); 6#L283-1true test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 72#L293true assume !(0 != test_~tmp___0~1); 53#L293-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 78#L303true assume 0 != test_~tmp___2~0; 90#L309-2true assume !(0 != ~pumpRunning~0); 11#L97true assume !(0 != ~systemActive~0); 33#L104true havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 44#L407-1true __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 86#L339true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 19#L345-1true [2021-10-13 01:20:20,341 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:20,342 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 01:20:20,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:20,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755431197] [2021-10-13 01:20:20,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:20,356 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:20,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:20,638 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:20,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:20,827 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:20,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:20,831 INFO L82 PathProgramCache]: Analyzing trace with hash -1681191243, now seen corresponding path program 1 times [2021-10-13 01:20:20,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:20,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733220961] [2021-10-13 01:20:20,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:20,832 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:20,841 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:20,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:20,854 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:20,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:20,856 INFO L82 PathProgramCache]: Analyzing trace with hash 33087695, now seen corresponding path program 1 times [2021-10-13 01:20:20,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:20,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582408032] [2021-10-13 01:20:20,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:20,857 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:20,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:21,151 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 01:20:21,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:21,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582408032] [2021-10-13 01:20:21,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582408032] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:21,153 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:21,153 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:20:21,153 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112647705] [2021-10-13 01:20:21,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:21,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:20:21,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:20:21,419 INFO L87 Difference]: Start difference. First operand has 90 states, 89 states have (on average 1.5168539325842696) internal successors, (135), 89 states have internal predecessors, (135), 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 01:20:21,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:21,810 INFO L93 Difference]: Finished difference Result 90 states and 124 transitions. [2021-10-13 01:20:21,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 01:20:21,813 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 90 states and 124 transitions. [2021-10-13 01:20:21,818 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 01:20:21,825 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 90 states to 83 states and 117 transitions. [2021-10-13 01:20:21,826 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 83 [2021-10-13 01:20:21,828 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 83 [2021-10-13 01:20:21,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 83 states and 117 transitions. [2021-10-13 01:20:21,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:20:21,830 INFO L681 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-13 01:20:21,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states and 117 transitions. [2021-10-13 01:20:21,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2021-10-13 01:20:21,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 83 states have (on average 1.4096385542168675) internal successors, (117), 82 states have internal predecessors, (117), 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 01:20:21,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 117 transitions. [2021-10-13 01:20:21,867 INFO L704 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-13 01:20:21,868 INFO L587 BuchiCegarLoop]: Abstraction has 83 states and 117 transitions. [2021-10-13 01:20:21,868 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:20:21,868 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 83 states and 117 transitions. [2021-10-13 01:20:21,871 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 55 [2021-10-13 01:20:21,872 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:20:21,872 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:20:21,873 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:20:21,873 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:20:21,873 INFO L791 eck$LassoCheckResult]: Stem: 275#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 270#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 271#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; 274#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 255#L540 assume 0 != main_~tmp~5; 238#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 226#L345-1 [2021-10-13 01:20:21,874 INFO L793 eck$LassoCheckResult]: Loop: 226#L345-1 assume !false; 227#L274 assume test_~splverifierCounter~0 < 4; 250#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 259#L283 assume !(0 != test_~tmp~3); 203#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 204#L293 assume !(0 != test_~tmp___0~1); 231#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 267#L303 assume 0 != test_~tmp___2~0; 237#L309-2 assume !(0 != ~pumpRunning~0); 210#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 211#L129 assume !(0 == ~pumpRunning~0); 244#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 245#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 257#L339 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 226#L345-1 [2021-10-13 01:20:21,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:21,875 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 01:20:21,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:21,876 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296172916] [2021-10-13 01:20:21,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:21,876 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:21,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:21,937 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:22,014 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:22,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:22,015 INFO L82 PathProgramCache]: Analyzing trace with hash -619089842, now seen corresponding path program 1 times [2021-10-13 01:20:22,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:22,016 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259062879] [2021-10-13 01:20:22,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:22,016 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:22,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:22,035 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 01:20:22,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:22,036 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1259062879] [2021-10-13 01:20:22,037 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1259062879] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:22,037 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:22,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:22,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457598774] [2021-10-13 01:20:22,038 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 01:20:22,038 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:22,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 01:20:22,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 01:20:22,040 INFO L87 Difference]: Start difference. First operand 83 states and 117 transitions. cyclomatic complexity: 36 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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 01:20:22,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:22,128 INFO L93 Difference]: Finished difference Result 130 states and 177 transitions. [2021-10-13 01:20:22,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 01:20:22,129 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 130 states and 177 transitions. [2021-10-13 01:20:22,143 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2021-10-13 01:20:22,147 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 130 states to 130 states and 177 transitions. [2021-10-13 01:20:22,149 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 130 [2021-10-13 01:20:22,150 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 130 [2021-10-13 01:20:22,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 130 states and 177 transitions. [2021-10-13 01:20:22,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:20:22,154 INFO L681 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2021-10-13 01:20:22,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states and 177 transitions. [2021-10-13 01:20:22,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-13 01:20:22,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 130 states have (on average 1.3615384615384616) internal successors, (177), 129 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:20:22,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 177 transitions. [2021-10-13 01:20:22,177 INFO L704 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2021-10-13 01:20:22,177 INFO L587 BuchiCegarLoop]: Abstraction has 130 states and 177 transitions. [2021-10-13 01:20:22,178 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:20:22,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 130 states and 177 transitions. [2021-10-13 01:20:22,180 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 90 [2021-10-13 01:20:22,182 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:20:22,182 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:20:22,183 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:20:22,184 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] [2021-10-13 01:20:22,184 INFO L791 eck$LassoCheckResult]: Stem: 502#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 497#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 498#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; 501#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 481#L540 assume 0 != main_~tmp~5; 453#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 454#L345-1 [2021-10-13 01:20:22,185 INFO L793 eck$LassoCheckResult]: Loop: 454#L345-1 assume !false; 472#L274 assume test_~splverifierCounter~0 < 4; 473#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 485#L283 assume !(0 != test_~tmp~3); 420#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 421#L293 assume !(0 != test_~tmp___0~1); 450#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 493#L303 assume 0 != test_~tmp___2~0; 456#L309-2 assume !(0 != ~pumpRunning~0); 430#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 431#L129 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 484#L447 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 432#L452 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 424#L249 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 425#L249-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 461#L255 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 462#L133 assume !(0 != processEnvironment_~tmp~0); 465#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 466#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 483#L339 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 454#L345-1 [2021-10-13 01:20:22,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:22,186 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 01:20:22,186 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:22,186 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501536918] [2021-10-13 01:20:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:22,188 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:22,279 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:22,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:22,353 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:22,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:22,354 INFO L82 PathProgramCache]: Analyzing trace with hash -21695270, now seen corresponding path program 1 times [2021-10-13 01:20:22,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:22,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554176264] [2021-10-13 01:20:22,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:22,355 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:22,362 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:22,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:22,371 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:22,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:22,373 INFO L82 PathProgramCache]: Analyzing trace with hash -6983296, now seen corresponding path program 1 times [2021-10-13 01:20:22,373 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:22,373 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885372318] [2021-10-13 01:20:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:22,374 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:22,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:20:22,481 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 01:20:22,482 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:20:22,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885372318] [2021-10-13 01:20:22,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885372318] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:20:22,483 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:20:22,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:20:22,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446637735] [2021-10-13 01:20:22,860 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:20:22,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:20:22,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:20:22,865 INFO L87 Difference]: Start difference. First operand 130 states and 177 transitions. cyclomatic complexity: 49 Second operand has 5 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 01:20:23,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:20:23,082 INFO L93 Difference]: Finished difference Result 434 states and 594 transitions. [2021-10-13 01:20:23,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 01:20:23,082 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 434 states and 594 transitions. [2021-10-13 01:20:23,092 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 314 [2021-10-13 01:20:23,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 434 states to 434 states and 594 transitions. [2021-10-13 01:20:23,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 434 [2021-10-13 01:20:23,106 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 434 [2021-10-13 01:20:23,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 434 states and 594 transitions. [2021-10-13 01:20:23,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:20:23,115 INFO L681 BuchiCegarLoop]: Abstraction has 434 states and 594 transitions. [2021-10-13 01:20:23,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states and 594 transitions. [2021-10-13 01:20:23,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 254. [2021-10-13 01:20:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 254 states have (on average 1.3385826771653544) internal successors, (340), 253 states have internal predecessors, (340), 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 01:20:23,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 340 transitions. [2021-10-13 01:20:23,161 INFO L704 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2021-10-13 01:20:23,161 INFO L587 BuchiCegarLoop]: Abstraction has 254 states and 340 transitions. [2021-10-13 01:20:23,161 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 01:20:23,161 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 254 states and 340 transitions. [2021-10-13 01:20:23,166 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2021-10-13 01:20:23,166 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:20:23,166 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:20:23,169 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 01:20:23,169 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, 1] [2021-10-13 01:20:23,169 INFO L791 eck$LassoCheckResult]: Stem: 1095#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(30);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(9);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(21);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(30);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(9);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 1085#L-1 havoc main_#res;havoc main_#t~ret45, main_~retValue_acc~8, main_~tmp~5;havoc main_~retValue_acc~8;havoc main_~tmp~5; 1086#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; 1093#L75 main_#t~ret45 := valid_product_#res;main_~tmp~5 := main_#t~ret45;havoc main_#t~ret45; 1064#L540 assume 0 != main_~tmp~5; 1034#L517 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1035#L345-1 [2021-10-13 01:20:23,170 INFO L793 eck$LassoCheckResult]: Loop: 1035#L345-1 assume !false; 1226#L274 assume test_~splverifierCounter~0 < 4; 1087#L275 test_~tmp~3 := test_#t~nondet28;havoc test_#t~nondet28; 1068#L283 assume !(0 != test_~tmp~3); 1002#L283-1 test_~tmp___0~1 := test_#t~nondet29;havoc test_#t~nondet29; 1003#L293 assume !(0 != test_~tmp___0~1); 1079#L293-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 1080#L303 assume 0 != test_~tmp___2~0; 1037#L309-2 assume !(0 != ~pumpRunning~0); 1106#L97 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1091#L129 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~7;havoc isHighWaterSensorDry_~retValue_acc~7; 1067#L447 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~7; 1013#L452 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1006#L249 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 1007#L249-2 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 1042#L255 processEnvironment_#t~ret8 := isHighWaterLevel_#res;processEnvironment_~tmp~0 := processEnvironment_#t~ret8;havoc processEnvironment_#t~ret8; 1043#L133 assume !(0 != processEnvironment_~tmp~0); 1060#L104 havoc __utac_acc__Specification3_spec__1_#t~ret32, __utac_acc__Specification3_spec__1_#t~ret33, __utac_acc__Specification3_spec__1_#t~ret34, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 1127#L407-1 __utac_acc__Specification3_spec__1_#t~ret32 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret32;havoc __utac_acc__Specification3_spec__1_#t~ret32; 1128#L339 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 1123#L439 __utac_acc__Specification3_spec__1_#t~ret33 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret33;havoc __utac_acc__Specification3_spec__1_#t~ret33; 1124#L345 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1035#L345-1 [2021-10-13 01:20:23,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:23,171 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-13 01:20:23,171 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:23,172 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750336094] [2021-10-13 01:20:23,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:23,173 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,264 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:23,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,327 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:23,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:23,328 INFO L82 PathProgramCache]: Analyzing trace with hash 625688428, now seen corresponding path program 1 times [2021-10-13 01:20:23,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:23,330 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388559613] [2021-10-13 01:20:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:23,331 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,350 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:23,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,364 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:20:23,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:20:23,369 INFO L82 PathProgramCache]: Analyzing trace with hash 1878993554, now seen corresponding path program 1 times [2021-10-13 01:20:23,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:20:23,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608787319] [2021-10-13 01:20:23,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:20:23,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:20:23,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,431 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:20:23,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:20:23,537 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:21:36,105 WARN L207 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 01:22:52,502 WARN L207 SmtUtils]: Spent 37.05 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 01:22:52,641 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:22:52 BoogieIcfgContainer [2021-10-13 01:22:52,641 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:22:52,642 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:22:52,642 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:22:52,642 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:22:52,643 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:20:20" (3/4) ... [2021-10-13 01:22:52,646 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:22:52,706 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:22:52,706 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:22:52,707 INFO L168 Benchmark]: Toolchain (without parser) took 154742.38 ms. Allocated memory was 94.4 MB in the beginning and 151.0 MB in the end (delta: 56.6 MB). Free memory was 51.7 MB in the beginning and 43.8 MB in the end (delta: 7.9 MB). Peak memory consumption was 64.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,708 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:22:52,709 INFO L168 Benchmark]: CACSL2BoogieTranslator took 780.95 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 61.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,709 INFO L168 Benchmark]: Boogie Procedure Inliner took 135.11 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 58.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,710 INFO L168 Benchmark]: Boogie Preprocessor took 87.07 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 55.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,711 INFO L168 Benchmark]: RCFGBuilder took 1204.69 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 55.5 MB in the beginning and 80.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,712 INFO L168 Benchmark]: BuchiAutomizer took 152458.09 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 79.3 MB in the beginning and 45.9 MB in the end (delta: 33.4 MB). Peak memory consumption was 78.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,712 INFO L168 Benchmark]: Witness Printer took 64.57 ms. Allocated memory is still 151.0 MB. Free memory was 45.9 MB in the beginning and 43.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:22:52,716 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 94.4 MB. Free memory is still 68.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 780.95 ms. Allocated memory is still 94.4 MB. Free memory was 51.4 MB in the beginning and 61.1 MB in the end (delta: -9.7 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 135.11 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 58.0 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 87.07 ms. Allocated memory is still 94.4 MB. Free memory was 58.0 MB in the beginning and 55.5 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1204.69 ms. Allocated memory was 94.4 MB in the beginning and 119.5 MB in the end (delta: 25.2 MB). Free memory was 55.5 MB in the beginning and 80.0 MB in the end (delta: -24.5 MB). Peak memory consumption was 35.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 152458.09 ms. Allocated memory was 119.5 MB in the beginning and 151.0 MB in the end (delta: 31.5 MB). Free memory was 79.3 MB in the beginning and 45.9 MB in the end (delta: 33.4 MB). Peak memory consumption was 78.5 MB. Max. memory is 16.1 GB. * Witness Printer took 64.57 ms. Allocated memory is still 151.0 MB. Free memory was 45.9 MB in the beginning and 43.8 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 254 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 152.3s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 151.3s. Construction of modules took 0.4s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 93.1ms AutomataMinimizationTime, 3 MinimizatonAttempts, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 254 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 392 SDtfs, 891 SDslu, 536 SDs, 0 SdLazy, 108 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 440.1ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 273]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=29270} State at position 1 is {NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e9aca8f=0, NULL=29270, NULL=0, NULL=29276, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37514f5e=0, NULL=29293, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33f05a44=0, tmp=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b14cc8d=0, NULL=0, NULL=29282, NULL=0, tmp___1=0, NULL=0, NULL=29289, NULL=29291, cleanupTimeShifts=4, NULL=29290, tmp=0, NULL=29297, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@bbfecd7=0, NULL=29273, \result=1, head=0, pumpRunning=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43ad8b9f=0, NULL=29285, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f22676f=0, NULL=0, tmp=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@770595e9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e62f87d=57, NULL=0, NULL=0, NULL=29294, NULL=0, NULL=0, tmp=1, NULL=0, retValue_acc=1, NULL=0, tmp___0=0, NULL=29292, NULL=29284, NULL=29272, tmp=0, head=0, NULL=0, NULL=29287, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b2cfb5a=0, NULL=0, NULL=0, NULL=29286, retValue_acc=0, tmp___0=0, NULL=0, NULL=0, NULL=29277, NULL=0, NULL=0, tmp___0=1, NULL=0, systemActive=1, NULL=29283, \result=1, NULL=0, NULL=29296, \result=0, retValue_acc=0, NULL=29298, NULL=29288, \result=0, NULL=29279, NULL=0, NULL=0, NULL=29280, NULL=29281, NULL=29271, retValue_acc=1, tmp___2=57, splverifierCounter=0, NULL=0, \result=0, NULL=29274, tmp___1=0, NULL=0, NULL=0, NULL=29295, NULL=0, NULL=29275, NULL=29278} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L89] int pumpRunning = 0; [L90] int systemActive = 1; [L364] int waterLevel = 1; [L365] int methaneLevelCritical = 0; [L458] int cleanupTimeShifts = 4; [L723] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L531] int retValue_acc ; [L532] int tmp ; [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L538] tmp = valid_product() [L540] COND TRUE \read(tmp) [L264] int splverifierCounter ; [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L268] int tmp___2 ; [L271] splverifierCounter = 0 Loop: [L273] COND TRUE 1 [L275] COND TRUE splverifierCounter < 4 [L281] tmp = __VERIFIER_nondet_int() [L283] COND FALSE !(\read(tmp)) [L291] tmp___0 = __VERIFIER_nondet_int() [L293] COND FALSE !(\read(tmp___0)) [L301] tmp___2 = __VERIFIER_nondet_int() [L303] COND TRUE \read(tmp___2) [L97] COND FALSE !(\read(pumpRunning)) [L104] COND TRUE \read(systemActive) [L126] int tmp ; [L129] COND TRUE ! pumpRunning [L241] int retValue_acc ; [L242] int tmp ; [L243] int tmp___0 ; [L444] int retValue_acc ; [L447] COND TRUE waterLevel < 2 [L448] retValue_acc = 1 [L449] return (retValue_acc); [L247] tmp = isHighWaterSensorDry() [L249] COND TRUE \read(tmp) [L250] tmp___0 = 0 [L254] retValue_acc = tmp___0 [L255] return (retValue_acc); [L131] tmp = isHighWaterLevel() [L133] COND FALSE !(\read(tmp)) [L331] int tmp ; [L332] int tmp___0 ; [L333] int tmp___1 ; [L403] int retValue_acc ; [L406] retValue_acc = methaneLevelCritical [L407] return (retValue_acc); [L337] tmp = isMethaneLevelCritical() [L339] COND FALSE !(\read(tmp)) [L435] int retValue_acc ; [L438] retValue_acc = waterLevel [L439] return (retValue_acc); [L343] tmp___0 = getWaterLevel() [L345] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:22:52,805 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8d1ee90-e397-49bd-98d6-d5bcd3715364/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...