./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.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_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/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_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/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_a39eaee5-4a8c-4345-abf6-4f7530899733/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 4003051e8c7e84d7a7481775cdc05def8cb96ed2 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:58:17,465 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:58:17,467 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:58:17,501 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:58:17,502 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:58:17,503 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:58:17,505 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:58:17,508 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:58:17,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:58:17,513 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:58:17,514 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:58:17,516 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:58:17,517 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:58:17,519 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:58:17,521 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:58:17,523 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:58:17,524 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:58:17,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:58:17,529 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:58:17,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:58:17,534 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:58:17,536 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:58:17,538 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:58:17,539 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:58:17,543 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:58:17,544 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:58:17,544 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:58:17,546 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:58:17,546 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:58:17,548 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:58:17,548 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:58:17,549 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:58:17,551 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:58:17,552 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:58:17,553 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:58:17,554 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:58:17,555 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:58:17,555 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:58:17,556 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:58:17,557 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:58:17,558 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:58:17,559 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:58:17,589 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:58:17,589 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:58:17,590 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:58:17,590 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:58:17,591 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:58:17,592 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:58:17,592 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:58:17,592 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:58:17,593 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:58:17,593 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:58:17,593 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:58:17,593 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:58:17,594 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:58:17,594 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:58:17,594 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:58:17,594 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:58:17,595 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:58:17,595 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:58:17,595 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:58:17,595 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:58:17,595 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:58:17,596 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:58:17,596 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:58:17,596 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:58:17,596 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:58:17,597 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:58:17,597 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:58:17,597 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:58:17,597 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:58:17,598 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:58:17,598 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:58:17,598 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:58:17,599 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:58:17,600 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_a39eaee5-4a8c-4345-abf6-4f7530899733/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4003051e8c7e84d7a7481775cdc05def8cb96ed2 [2021-10-13 00:58:17,884 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:58:17,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:58:17,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:58:17,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:58:17,920 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:58:17,921 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-10-13 00:58:18,005 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/data/b769c140c/0a23c2dde72b4767b1f71022b161da88/FLAG8b38c2fd9 [2021-10-13 00:58:18,521 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:58:18,522 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c [2021-10-13 00:58:18,542 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/data/b769c140c/0a23c2dde72b4767b1f71022b161da88/FLAG8b38c2fd9 [2021-10-13 00:58:18,874 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/data/b769c140c/0a23c2dde72b4767b1f71022b161da88 [2021-10-13 00:58:18,876 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:58:18,878 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:58:18,884 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:18,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:58:18,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:58:18,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:18" (1/1) ... [2021-10-13 00:58:18,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63e80a2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:18, skipping insertion in model container [2021-10-13 00:58:18,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:58:18" (1/1) ... [2021-10-13 00:58:18,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:58:18,963 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:58:19,154 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_a39eaee5-4a8c-4345-abf6-4f7530899733/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1281,1294] [2021-10-13 00:58:19,280 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:19,292 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:58:19,307 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_a39eaee5-4a8c-4345-abf6-4f7530899733/sv-benchmarks/c/product-lines/minepump_spec5_product50.cil.c[1281,1294] [2021-10-13 00:58:19,370 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:58:19,393 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:58:19,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19 WrapperNode [2021-10-13 00:58:19,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:58:19,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:19,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:58:19,397 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:58:19,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:58:19,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:58:19,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:58:19,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:58:19,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,534 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,554 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,562 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,565 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,569 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:58:19,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:58:19,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:58:19,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:58:19,572 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (1/1) ... [2021-10-13 00:58:19,580 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:58:19,593 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:58:19,615 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:58:19,626 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:58:19,660 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:58:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:58:19,661 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:58:19,661 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:58:20,479 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:58:20,480 INFO L299 CfgBuilder]: Removed 172 assume(true) statements. [2021-10-13 00:58:20,482 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:20 BoogieIcfgContainer [2021-10-13 00:58:20,482 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:58:20,483 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:58:20,484 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:58:20,487 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:58:20,488 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:58:20,489 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:58:18" (1/3) ... [2021-10-13 00:58:20,490 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c9acd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:58:20, skipping insertion in model container [2021-10-13 00:58:20,490 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:58:20,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:58:19" (2/3) ... [2021-10-13 00:58:20,491 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c9acd0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:58:20, skipping insertion in model container [2021-10-13 00:58:20,491 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:58:20,491 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:20" (3/3) ... [2021-10-13 00:58:20,493 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product50.cil.c [2021-10-13 00:58:20,546 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:58:20,546 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:58:20,546 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:58:20,547 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:58:20,547 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:58:20,547 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:58:20,547 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:58:20,547 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:58:20,571 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.5245901639344261) internal successors, (186), 122 states have internal predecessors, (186), 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 00:58:20,597 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-13 00:58:20,597 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:20,598 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:20,605 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:20,606 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:20,606 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:58:20,607 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 123 states, 122 states have (on average 1.5245901639344261) internal successors, (186), 122 states have internal predecessors, (186), 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 00:58:20,616 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-13 00:58:20,616 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:20,616 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:20,618 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:20,618 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:20,623 INFO L791 eck$LassoCheckResult]: Stem: 107#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 40#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 122#L886true havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 35#L894true main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 7#L982true assume 0 != main_~tmp~9; 103#L958true ~switchedOnBeforeTS~0 := 0; 81#L818true havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 96#L839-1true [2021-10-13 00:58:20,624 INFO L793 eck$LassoCheckResult]: Loop: 96#L839-1true assume !false; 82#L286true assume test_~splverifierCounter~0 < 4; 59#L287true test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 9#L295true assume !(0 != test_~tmp~4); 93#L295-1true test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 56#L305true assume !(0 != test_~tmp___0~2); 26#L305-1true test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 43#L315true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 54#L323-2true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 91#L185true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 112#L828true assume !(0 != ~pumpRunning~0); 67#L74true assume !(0 != ~systemActive~0); 114#L81true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 18#L418true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 33#L839true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 96#L839-1true [2021-10-13 00:58:20,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:20,630 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 00:58:20,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:20,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905950054] [2021-10-13 00:58:20,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:20,642 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:20,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:20,892 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:21,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:21,105 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:21,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:21,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1013192653, now seen corresponding path program 1 times [2021-10-13 00:58:21,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:21,110 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326695069] [2021-10-13 00:58:21,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:21,110 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:21,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:21,213 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 00:58:21,215 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:21,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326695069] [2021-10-13 00:58:21,217 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326695069] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:21,218 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:21,218 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:21,218 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718570363] [2021-10-13 00:58:21,224 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:58:21,227 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:21,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:21,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:21,252 INFO L87 Difference]: Start difference. First operand has 123 states, 122 states have (on average 1.5245901639344261) internal successors, (186), 122 states have internal predecessors, (186), 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 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:21,319 INFO L93 Difference]: Finished difference Result 123 states and 176 transitions. [2021-10-13 00:58:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:21,322 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 123 states and 176 transitions. [2021-10-13 00:58:21,328 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-13 00:58:21,334 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 123 states to 116 states and 168 transitions. [2021-10-13 00:58:21,336 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 116 [2021-10-13 00:58:21,337 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 116 [2021-10-13 00:58:21,343 INFO L73 IsDeterministic]: Start isDeterministic. Operand 116 states and 168 transitions. [2021-10-13 00:58:21,344 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:58:21,344 INFO L681 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2021-10-13 00:58:21,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states and 168 transitions. [2021-10-13 00:58:21,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2021-10-13 00:58:21,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 116 states have (on average 1.4482758620689655) internal successors, (168), 115 states have internal predecessors, (168), 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 00:58:21,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 168 transitions. [2021-10-13 00:58:21,382 INFO L704 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2021-10-13 00:58:21,383 INFO L587 BuchiCegarLoop]: Abstraction has 116 states and 168 transitions. [2021-10-13 00:58:21,383 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:58:21,383 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 116 states and 168 transitions. [2021-10-13 00:58:21,386 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 77 [2021-10-13 00:58:21,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:21,386 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:21,387 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:21,388 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:21,388 INFO L791 eck$LassoCheckResult]: Stem: 368#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 319#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 320#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 308#L894 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 262#L982 assume 0 != main_~tmp~9; 263#L958 ~switchedOnBeforeTS~0 := 0; 353#L818 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 305#L839-1 [2021-10-13 00:58:21,388 INFO L793 eck$LassoCheckResult]: Loop: 305#L839-1 assume !false; 354#L286 assume test_~splverifierCounter~0 < 4; 337#L287 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 266#L295 assume !(0 != test_~tmp~4); 268#L295-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 333#L305 assume !(0 != test_~tmp___0~2); 295#L305-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 296#L315 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 259#L323-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 331#L185 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 359#L828 assume !(0 != ~pumpRunning~0); 346#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 347#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 362#L106-1 assume !(0 == ~pumpRunning~0); 283#L81 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 280#L418 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 281#L839 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 305#L839-1 [2021-10-13 00:58:21,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:21,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 00:58:21,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:21,390 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024477958] [2021-10-13 00:58:21,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:21,391 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:21,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:21,490 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:21,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:21,606 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:21,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:21,607 INFO L82 PathProgramCache]: Analyzing trace with hash 374839307, now seen corresponding path program 1 times [2021-10-13 00:58:21,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:21,608 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008337345] [2021-10-13 00:58:21,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:21,608 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:21,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:21,629 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 00:58:21,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:21,630 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008337345] [2021-10-13 00:58:21,630 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008337345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:21,630 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:21,631 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:58:21,631 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866649808] [2021-10-13 00:58:21,631 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:58:21,632 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:21,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:58:21,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:58:21,633 INFO L87 Difference]: Start difference. First operand 116 states and 168 transitions. cyclomatic complexity: 54 Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 00:58:21,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:21,729 INFO L93 Difference]: Finished difference Result 165 states and 227 transitions. [2021-10-13 00:58:21,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:58:21,742 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 165 states and 227 transitions. [2021-10-13 00:58:21,745 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-13 00:58:21,748 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 165 states to 165 states and 227 transitions. [2021-10-13 00:58:21,748 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 165 [2021-10-13 00:58:21,749 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 165 [2021-10-13 00:58:21,749 INFO L73 IsDeterministic]: Start isDeterministic. Operand 165 states and 227 transitions. [2021-10-13 00:58:21,751 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:58:21,751 INFO L681 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2021-10-13 00:58:21,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 165 states and 227 transitions. [2021-10-13 00:58:21,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 165 to 165. [2021-10-13 00:58:21,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 165 states have (on average 1.3757575757575757) internal successors, (227), 164 states have internal predecessors, (227), 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 00:58:21,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 227 transitions. [2021-10-13 00:58:21,778 INFO L704 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2021-10-13 00:58:21,778 INFO L587 BuchiCegarLoop]: Abstraction has 165 states and 227 transitions. [2021-10-13 00:58:21,778 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:58:21,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 165 states and 227 transitions. [2021-10-13 00:58:21,781 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 114 [2021-10-13 00:58:21,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:21,782 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:21,783 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:21,788 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, 1] [2021-10-13 00:58:21,788 INFO L791 eck$LassoCheckResult]: Stem: 661#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 607#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 608#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 597#L894 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 549#L982 assume 0 != main_~tmp~9; 550#L958 ~switchedOnBeforeTS~0 := 0; 642#L818 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 643#L839-1 [2021-10-13 00:58:21,789 INFO L793 eck$LassoCheckResult]: Loop: 643#L839-1 assume !false; 700#L286 assume test_~splverifierCounter~0 < 4; 699#L287 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 698#L295 assume !(0 != test_~tmp~4); 696#L295-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 695#L305 assume !(0 != test_~tmp___0~2); 693#L305-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 691#L315 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 689#L323-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 688#L185 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 665#L828 assume !(0 != ~pumpRunning~0); 634#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 635#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 655#L106-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 640#L426-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 547#L431-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 548#L234-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 616#L234-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 654#L240-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 578#L110-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 570#L81 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 705#L418 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 701#L839 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~8); 643#L839-1 [2021-10-13 00:58:21,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:21,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 00:58:21,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:21,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72424819] [2021-10-13 00:58:21,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:21,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:21,841 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:21,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:21,899 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:21,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:21,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1760936871, now seen corresponding path program 1 times [2021-10-13 00:58:21,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:21,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94913213] [2021-10-13 00:58:21,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:21,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:21,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:21,965 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 00:58:21,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:21,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94913213] [2021-10-13 00:58:21,966 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94913213] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:21,966 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:21,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:58:21,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685630650] [2021-10-13 00:58:21,968 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:58:21,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:21,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:58:21,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:58:21,973 INFO L87 Difference]: Start difference. First operand 165 states and 227 transitions. cyclomatic complexity: 64 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:58:22,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:22,322 INFO L93 Difference]: Finished difference Result 700 states and 975 transitions. [2021-10-13 00:58:22,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:58:22,323 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 700 states and 975 transitions. [2021-10-13 00:58:22,339 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 481 [2021-10-13 00:58:22,352 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 700 states to 700 states and 975 transitions. [2021-10-13 00:58:22,352 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 700 [2021-10-13 00:58:22,355 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 700 [2021-10-13 00:58:22,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 700 states and 975 transitions. [2021-10-13 00:58:22,365 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:58:22,365 INFO L681 BuchiCegarLoop]: Abstraction has 700 states and 975 transitions. [2021-10-13 00:58:22,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 700 states and 975 transitions. [2021-10-13 00:58:22,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 700 to 320. [2021-10-13 00:58:22,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 320 states have (on average 1.359375) internal successors, (435), 319 states have internal predecessors, (435), 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 00:58:22,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 435 transitions. [2021-10-13 00:58:22,418 INFO L704 BuchiCegarLoop]: Abstraction has 320 states and 435 transitions. [2021-10-13 00:58:22,418 INFO L587 BuchiCegarLoop]: Abstraction has 320 states and 435 transitions. [2021-10-13 00:58:22,418 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-13 00:58:22,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 320 states and 435 transitions. [2021-10-13 00:58:22,422 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 226 [2021-10-13 00:58:22,423 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:22,423 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:22,426 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:22,426 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, 1, 1, 1] [2021-10-13 00:58:22,426 INFO L791 eck$LassoCheckResult]: Stem: 1570#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1498#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 1499#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 1487#L894 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 1435#L982 assume 0 != main_~tmp~9; 1436#L958 ~switchedOnBeforeTS~0 := 0; 1543#L818 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1544#L839-1 [2021-10-13 00:58:22,427 INFO L793 eck$LassoCheckResult]: Loop: 1544#L839-1 assume !false; 1718#L286 assume test_~splverifierCounter~0 < 4; 1719#L287 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 1726#L295 assume !(0 != test_~tmp~4); 1723#L295-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 1722#L305 assume !(0 != test_~tmp___0~2); 1680#L305-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 1679#L315 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1676#L323-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1675#L185 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 1674#L828 assume !(0 != ~pumpRunning~0); 1673#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 1579#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1560#L106-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 1541#L426-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 1431#L431-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 1432#L234-3 assume !(0 != isHighWaterLevel_~tmp~2);isHighWaterLevel_~tmp___0~0 := 1; 1509#L234-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1559#L240-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1463#L110-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1455#L81 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 1452#L418 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 1453#L839 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1561#L185-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 1562#L843 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 1544#L839-1 [2021-10-13 00:58:22,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:22,428 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 4 times [2021-10-13 00:58:22,428 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:22,429 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345206849] [2021-10-13 00:58:22,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:22,429 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:22,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,515 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,595 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:22,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:22,596 INFO L82 PathProgramCache]: Analyzing trace with hash -43230540, now seen corresponding path program 1 times [2021-10-13 00:58:22,596 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:22,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543436132] [2021-10-13 00:58:22,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:22,598 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:58:22,647 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 00:58:22,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:58:22,648 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543436132] [2021-10-13 00:58:22,649 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543436132] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:58:22,649 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:58:22,649 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:58:22,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267960603] [2021-10-13 00:58:22,650 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:58:22,650 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:58:22,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:58:22,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:58:22,652 INFO L87 Difference]: Start difference. First operand 320 states and 435 transitions. cyclomatic complexity: 117 Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 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 00:58:22,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:58:22,751 INFO L93 Difference]: Finished difference Result 591 states and 791 transitions. [2021-10-13 00:58:22,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:58:22,751 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 591 states and 791 transitions. [2021-10-13 00:58:22,758 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 424 [2021-10-13 00:58:22,764 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 591 states to 591 states and 791 transitions. [2021-10-13 00:58:22,764 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 591 [2021-10-13 00:58:22,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 591 [2021-10-13 00:58:22,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 591 states and 791 transitions. [2021-10-13 00:58:22,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:58:22,767 INFO L681 BuchiCegarLoop]: Abstraction has 591 states and 791 transitions. [2021-10-13 00:58:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states and 791 transitions. [2021-10-13 00:58:22,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 332. [2021-10-13 00:58:22,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 332 states have (on average 1.3463855421686748) internal successors, (447), 331 states have internal predecessors, (447), 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 00:58:22,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 447 transitions. [2021-10-13 00:58:22,781 INFO L704 BuchiCegarLoop]: Abstraction has 332 states and 447 transitions. [2021-10-13 00:58:22,781 INFO L587 BuchiCegarLoop]: Abstraction has 332 states and 447 transitions. [2021-10-13 00:58:22,781 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-10-13 00:58:22,781 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 332 states and 447 transitions. [2021-10-13 00:58:22,784 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 234 [2021-10-13 00:58:22,784 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:58:22,784 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:58:22,785 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:58:22,785 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, 1, 1, 1] [2021-10-13 00:58:22,785 INFO L791 eck$LassoCheckResult]: Stem: 2502#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(13);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string35.base, #t~string35.offset, 1);call write~init~int(77, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(101, #t~string35.base, 2 + #t~string35.offset, 1);call write~init~int(116, #t~string35.base, 3 + #t~string35.offset, 1);call write~init~int(104, #t~string35.base, 4 + #t~string35.offset, 1);call write~init~int(58, #t~string35.base, 5 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 6 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string37.base, #t~string37.offset, 1);call write~init~int(82, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(73, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(84, #t~string37.base, 3 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 4 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string39.base, #t~string39.offset, 1);call write~init~int(75, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(21);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2418#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~9;havoc main_~retValue_acc~13;havoc main_~tmp~9; 2419#L886 havoc valid_product_#res;havoc valid_product_~retValue_acc~12;havoc valid_product_~retValue_acc~12;valid_product_~retValue_acc~12 := 1;valid_product_#res := valid_product_~retValue_acc~12; 2407#L894 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 2356#L982 assume 0 != main_~tmp~9; 2357#L958 ~switchedOnBeforeTS~0 := 0; 2470#L818 havoc test_#t~nondet28, test_#t~nondet29, test_#t~nondet30, test_#t~nondet31, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2471#L839-1 [2021-10-13 00:58:22,786 INFO L793 eck$LassoCheckResult]: Loop: 2471#L839-1 assume !false; 2612#L286 assume test_~splverifierCounter~0 < 4; 2611#L287 test_~tmp~4 := test_#t~nondet28;havoc test_#t~nondet28; 2610#L295 assume !(0 != test_~tmp~4); 2607#L295-1 test_~tmp___0~2 := test_#t~nondet29;havoc test_#t~nondet29; 2606#L305 assume !(0 != test_~tmp___0~2); 2604#L305-1 test_~tmp___2~0 := test_#t~nondet30;havoc test_#t~nondet30; 2603#L315 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 2437#L323-2 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2438#L185 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 2507#L828 assume !(0 != ~pumpRunning~0); 2508#L74 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret8, processEnvironment_~tmp~1;havoc processEnvironment_~tmp~1; 2555#L132 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 2554#L106-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret26, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~2, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~2;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~6;havoc isHighWaterSensorDry_~retValue_acc~6; 2464#L426-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~6 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~6; 2465#L431-1 isHighWaterLevel_#t~ret26 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~2 := isHighWaterLevel_#t~ret26;havoc isHighWaterLevel_#t~ret26; 2430#L234-3 assume 0 != isHighWaterLevel_~tmp~2;isHighWaterLevel_~tmp___0~0 := 0; 2431#L234-5 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 2485#L240-1 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 2384#L110-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 2376#L81 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~8, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~8;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~5;havoc getWaterLevel_~retValue_acc~5;getWaterLevel_~retValue_acc~5 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~5; 2562#L418 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~8 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 2560#L839 assume 2 != __utac_acc__Specification5_spec__3_~tmp~8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 2561#L185-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 2614#L843 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 2471#L839-1 [2021-10-13 00:58:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 5 times [2021-10-13 00:58:22,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:22,787 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392393554] [2021-10-13 00:58:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:22,787 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:22,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,814 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:22,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,862 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:22,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:22,863 INFO L82 PathProgramCache]: Analyzing trace with hash -723288910, now seen corresponding path program 1 times [2021-10-13 00:58:22,863 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:22,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977535752] [2021-10-13 00:58:22,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:22,864 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:22,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,873 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:22,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,886 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:58:22,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:58:22,887 INFO L82 PathProgramCache]: Analyzing trace with hash -786715092, now seen corresponding path program 1 times [2021-10-13 00:58:22,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:58:22,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1956052001] [2021-10-13 00:58:22,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:58:22,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:58:22,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:22,936 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:58:22,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:58:23,017 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:59:27,309 WARN L207 SmtUtils]: Spent 1.07 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:00:31,116 WARN L207 SmtUtils]: Spent 31.12 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:00:31,285 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:00:31 BoogieIcfgContainer [2021-10-13 01:00:31,285 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:00:31,286 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:00:31,286 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:00:31,286 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:00:31,287 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:58:20" (3/4) ... [2021-10-13 01:00:31,289 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:00:31,340 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:00:31,341 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:00:31,342 INFO L168 Benchmark]: Toolchain (without parser) took 132463.51 ms. Allocated memory was 92.3 MB in the beginning and 144.7 MB in the end (delta: 52.4 MB). Free memory was 56.5 MB in the beginning and 47.3 MB in the end (delta: 9.3 MB). Peak memory consumption was 61.4 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,342 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 61.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:00:31,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 511.00 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 56.3 MB in the beginning and 86.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,344 INFO L168 Benchmark]: Boogie Procedure Inliner took 126.08 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 82.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,344 INFO L168 Benchmark]: Boogie Preprocessor took 47.06 ms. Allocated memory is still 119.5 MB. Free memory was 82.6 MB in the beginning and 80.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,345 INFO L168 Benchmark]: RCFGBuilder took 912.05 ms. Allocated memory is still 119.5 MB. Free memory was 80.2 MB in the beginning and 69.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,346 INFO L168 Benchmark]: BuchiAutomizer took 130801.76 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 69.2 MB in the beginning and 50.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,346 INFO L168 Benchmark]: Witness Printer took 55.11 ms. Allocated memory is still 144.7 MB. Free memory was 50.2 MB in the beginning and 47.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:00:31,349 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 61.8 MB in the beginning and 61.8 MB in the end (delta: 25.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 511.00 ms. Allocated memory was 92.3 MB in the beginning and 119.5 MB in the end (delta: 27.3 MB). Free memory was 56.3 MB in the beginning and 86.4 MB in the end (delta: -30.1 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 126.08 ms. Allocated memory is still 119.5 MB. Free memory was 86.4 MB in the beginning and 82.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.06 ms. Allocated memory is still 119.5 MB. Free memory was 82.6 MB in the beginning and 80.2 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 912.05 ms. Allocated memory is still 119.5 MB. Free memory was 80.2 MB in the beginning and 69.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 22.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 130801.76 ms. Allocated memory was 119.5 MB in the beginning and 144.7 MB in the end (delta: 25.2 MB). Free memory was 69.2 MB in the beginning and 50.2 MB in the end (delta: 19.0 MB). Peak memory consumption was 69.2 MB. Max. memory is 16.1 GB. * Witness Printer took 55.11 ms. Allocated memory is still 144.7 MB. Free memory was 50.2 MB in the beginning and 47.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 332 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 130.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 129.7s. Construction of modules took 0.3s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 115.7ms AutomataMinimizationTime, 4 MinimizatonAttempts, 639 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 332 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 821 SDtfs, 1348 SDslu, 1089 SDs, 0 SdLazy, 248 SolverSat, 68 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 325.6ms Time LassoAnalysisResults: nont1 unkn0 SFLI4 SFLT0 conc0 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: 285]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=1, NULL=15011, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72797069=0, retValue_acc=1, NULL=14998, NULL=14993, methaneLevelCritical=0, tmp=0, NULL=14991, retValue_acc=0, tmp___1=0, NULL=15002, NULL=0, NULL=15014, cleanupTimeShifts=4, NULL=15001, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e5889c7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@533cd55d=0, NULL=15005, \result=1, head=0, pumpRunning=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b4f191b=0, NULL=14992, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@494b7eec=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fd0fa94=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ecb8e88=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a71ee3f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1905b216=66, NULL=15012, NULL=0, NULL=0, NULL=0, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6692d119=0, tmp___0=0, retValue_acc=1, NULL=15008, tmp=0, head=0, tmp=1, NULL=0, NULL=0, NULL=15007, NULL=14999, NULL=15000, NULL=0, NULL=0, NULL=15006, NULL=14988, NULL=15003, tmp=1, tmp___0=0, NULL=0, NULL=0, NULL=15013, NULL=0, tmp=0, switchedOnBeforeTS=0, NULL=14987, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b9b4e0f=0, \result=0, NULL=0, NULL=0, NULL=0, systemActive=1, NULL=14990, \result=1, \result=0, NULL=14994, retValue_acc=0, \result=0, tmp___0=0, NULL=15004, NULL=0, NULL=0, NULL=14989, NULL=0, NULL=14997, tmp___2=66, splverifierCounter=0, NULL=0, NULL=14996, NULL=15009, retValue_acc=0, NULL=14995, NULL=0, NULL=0, NULL=15010} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L343] int waterLevel = 1; [L344] int methaneLevelCritical = 0; [L615] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L812] int switchedOnBeforeTS ; [L899] int cleanupTimeShifts = 4; [L973] int retValue_acc ; [L974] int tmp ; [L890] int retValue_acc ; [L893] retValue_acc = 1 [L894] return (retValue_acc); [L980] tmp = valid_product() [L982] COND TRUE \read(tmp) [L817] switchedOnBeforeTS = 0 [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 Loop: [L285] COND TRUE 1 [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L267] systemActive = 1 [L181] int retValue_acc ; [L184] retValue_acc = pumpRunning [L185] return (retValue_acc); [L826] switchedOnBeforeTS = isPumpRunning() [L74] COND FALSE !(\read(pumpRunning)) [L81] COND TRUE \read(systemActive) [L129] int tmp ; [L132] COND FALSE !(\read(pumpRunning)) [L103] int tmp ; [L106] COND TRUE ! pumpRunning [L226] int retValue_acc ; [L227] int tmp ; [L228] int tmp___0 ; [L423] int retValue_acc ; [L426] COND TRUE waterLevel < 2 [L427] retValue_acc = 1 [L428] return (retValue_acc); [L232] tmp = isHighWaterSensorDry() [L234] COND TRUE \read(tmp) [L235] tmp___0 = 0 [L239] retValue_acc = tmp___0 [L240] return (retValue_acc); [L108] tmp = isHighWaterLevel() [L110] COND FALSE !(\read(tmp)) [L832] int tmp ; [L833] int tmp___0 ; [L414] int retValue_acc ; [L417] retValue_acc = waterLevel [L418] return (retValue_acc); [L837] tmp = getWaterLevel() [L839] COND TRUE tmp != 2 [L181] int retValue_acc ; [L184] retValue_acc = pumpRunning [L185] return (retValue_acc); [L841] tmp___0 = isPumpRunning() [L843] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:00:31,420 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39eaee5-4a8c-4345-abf6-4f7530899733/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...