./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.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_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/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_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/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_56484e5d-d0a2-481d-a978-344e42d0e879/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 0c528157ad3ccc512d501b1e66086beae537118a ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 00:06:26,519 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:06:26,521 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:06:26,573 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:06:26,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:06:26,580 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:06:26,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:06:26,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:06:26,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:06:26,598 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:06:26,599 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:06:26,601 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:06:26,602 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:06:26,604 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:06:26,606 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:06:26,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:06:26,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:06:26,614 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:06:26,620 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:06:26,622 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:06:26,629 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:06:26,631 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:06:26,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:06:26,634 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:06:26,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:06:26,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:06:26,642 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:06:26,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:06:26,645 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:06:26,646 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:06:26,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:06:26,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:06:26,650 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:06:26,651 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:06:26,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:06:26,653 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:06:26,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:06:26,654 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:06:26,654 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:06:26,655 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:06:26,656 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:06:26,657 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:06:26,697 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:06:26,698 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:06:26,698 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:06:26,698 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:06:26,699 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:06:26,699 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:06:26,700 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:06:26,700 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:06:26,700 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:06:26,700 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:06:26,701 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:06:26,701 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:06:26,701 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:06:26,701 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:06:26,702 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:06:26,702 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:06:26,702 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:06:26,702 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:06:26,702 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:06:26,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:06:26,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:06:26,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:06:26,703 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:06:26,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:06:26,704 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:06:26,704 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:06:26,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:06:26,705 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:06:26,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:06:26,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:06:26,705 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:06:26,706 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:06:26,707 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:06:26,707 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_56484e5d-d0a2-481d-a978-344e42d0e879/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c528157ad3ccc512d501b1e66086beae537118a [2021-10-13 00:06:26,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:06:26,971 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:06:26,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:06:26,975 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:06:26,976 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:06:26,977 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2021-10-13 00:06:27,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/data/a06d02e1d/647e16f64dd9472abe5f6b7fb6858698/FLAG3d7f95358 [2021-10-13 00:06:27,612 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:06:27,612 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c [2021-10-13 00:06:27,635 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/data/a06d02e1d/647e16f64dd9472abe5f6b7fb6858698/FLAG3d7f95358 [2021-10-13 00:06:27,905 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/data/a06d02e1d/647e16f64dd9472abe5f6b7fb6858698 [2021-10-13 00:06:27,908 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:06:27,910 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:06:27,912 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:06:27,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:06:27,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:06:27,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:06:27" (1/1) ... [2021-10-13 00:06:27,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed4f440 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:27, skipping insertion in model container [2021-10-13 00:06:27,922 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:06:27" (1/1) ... [2021-10-13 00:06:27,931 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:06:28,001 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:06:28,282 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_56484e5d-d0a2-481d-a978-344e42d0e879/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[12686,12699] [2021-10-13 00:06:28,317 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:06:28,328 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:06:28,381 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_56484e5d-d0a2-481d-a978-344e42d0e879/sv-benchmarks/c/product-lines/minepump_spec4_product46.cil.c[12686,12699] [2021-10-13 00:06:28,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:06:28,455 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:06:28,455 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28 WrapperNode [2021-10-13 00:06:28,456 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:06:28,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:06:28,458 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:06:28,458 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:06:28,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,554 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:06:28,555 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:06:28,555 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:06:28,555 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:06:28,564 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,564 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,569 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,570 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:06:28,623 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:06:28,623 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:06:28,624 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:06:28,626 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (1/1) ... [2021-10-13 00:06:28,633 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:06:28,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:06:28,670 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:06:28,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:06:28,731 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:06:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:06:28,732 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:06:28,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:06:29,648 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:06:29,649 INFO L299 CfgBuilder]: Removed 194 assume(true) statements. [2021-10-13 00:06:29,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:06:29 BoogieIcfgContainer [2021-10-13 00:06:29,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:06:29,652 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:06:29,653 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:06:29,664 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:06:29,665 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:06:29,665 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:06:27" (1/3) ... [2021-10-13 00:06:29,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aba4ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:06:29, skipping insertion in model container [2021-10-13 00:06:29,667 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:06:29,667 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:06:28" (2/3) ... [2021-10-13 00:06:29,667 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3aba4ee0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:06:29, skipping insertion in model container [2021-10-13 00:06:29,668 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:06:29,668 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:06:29" (3/3) ... [2021-10-13 00:06:29,669 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product46.cil.c [2021-10-13 00:06:29,727 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:06:29,727 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:06:29,727 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:06:29,727 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:06:29,728 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:06:29,728 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:06:29,728 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:06:29,728 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:06:29,755 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 00:06:29,796 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-13 00:06:29,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:06:29,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:06:29,804 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:06:29,804 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:06:29,804 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:06:29,805 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 00:06:29,820 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 81 [2021-10-13 00:06:29,820 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:06:29,821 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:06:29,822 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:06:29,822 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:06:29,827 INFO L791 eck$LassoCheckResult]: Stem: 112#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 43#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 94#L943true havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 35#L951true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 118#L132true assume 0 != main_~tmp~0; 20#L105true havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 18#L157-1true [2021-10-13 00:06:29,827 INFO L793 eck$LassoCheckResult]: Loop: 18#L157-1true assume !false; 89#L865true assume test_~splverifierCounter~0 < 4; 12#L866true test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 81#L874true assume !(0 != test_~tmp~9); 116#L874-1true test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 26#L884true assume !(0 != test_~tmp___0~2); 67#L884-1true test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 32#L894true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 97#L902-2true assume !(0 != ~pumpRunning~0); 16#L564true assume !(0 != ~systemActive~0); 113#L571true havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 114#L835true __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 8#L157true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 18#L157-1true [2021-10-13 00:06:29,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:29,833 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:06:29,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:29,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346329908] [2021-10-13 00:06:29,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:29,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:30,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:30,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:06:30,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:30,224 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:06:30,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:30,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1678359101, now seen corresponding path program 1 times [2021-10-13 00:06:30,238 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:30,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567511754] [2021-10-13 00:06:30,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:30,239 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:06:30,335 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 00:06:30,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:06:30,336 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567511754] [2021-10-13 00:06:30,337 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567511754] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:06:30,337 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:06:30,337 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:06:30,338 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135631493] [2021-10-13 00:06:30,346 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:06:30,348 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:06:30,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:06:30,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:06:30,368 INFO L87 Difference]: Start difference. First operand has 126 states, 125 states have (on average 1.512) internal successors, (189), 125 states have internal predecessors, (189), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 00:06:30,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:06:30,434 INFO L93 Difference]: Finished difference Result 126 states and 179 transitions. [2021-10-13 00:06:30,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:06:30,436 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 126 states and 179 transitions. [2021-10-13 00:06:30,440 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-13 00:06:30,446 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 126 states to 119 states and 171 transitions. [2021-10-13 00:06:30,448 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 119 [2021-10-13 00:06:30,449 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 119 [2021-10-13 00:06:30,449 INFO L73 IsDeterministic]: Start isDeterministic. Operand 119 states and 171 transitions. [2021-10-13 00:06:30,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:06:30,451 INFO L681 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-13 00:06:30,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states and 171 transitions. [2021-10-13 00:06:30,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2021-10-13 00:06:30,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.4369747899159664) internal successors, (171), 118 states have internal predecessors, (171), 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 00:06:30,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 171 transitions. [2021-10-13 00:06:30,489 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-13 00:06:30,489 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 171 transitions. [2021-10-13 00:06:30,489 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:06:30,490 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 171 transitions. [2021-10-13 00:06:30,492 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 79 [2021-10-13 00:06:30,492 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:06:30,492 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:06:30,493 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:06:30,493 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:06:30,493 INFO L791 eck$LassoCheckResult]: Stem: 378#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 330#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 331#L943 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 320#L951 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 321#L132 assume 0 != main_~tmp~0; 293#L105 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 270#L157-1 [2021-10-13 00:06:30,494 INFO L793 eck$LassoCheckResult]: Loop: 270#L157-1 assume !false; 289#L865 assume test_~splverifierCounter~0 < 4; 279#L866 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 280#L874 assume !(0 != test_~tmp~9); 285#L874-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 301#L884 assume !(0 != test_~tmp___0~2); 302#L884-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 313#L894 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 314#L902-2 assume !(0 != ~pumpRunning~0); 268#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 286#L622 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 366#L596-1 assume !(0 == ~pumpRunning~0); 307#L571 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 379#L835 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 269#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 270#L157-1 [2021-10-13 00:06:30,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:30,495 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:06:30,495 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:30,495 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167503640] [2021-10-13 00:06:30,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:30,496 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:30,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:30,556 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:06:30,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:30,626 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:06:30,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:30,626 INFO L82 PathProgramCache]: Analyzing trace with hash -1075674043, now seen corresponding path program 1 times [2021-10-13 00:06:30,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:30,627 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558288028] [2021-10-13 00:06:30,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:30,627 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:30,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:06:30,656 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 00:06:30,657 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:06:30,658 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558288028] [2021-10-13 00:06:30,661 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558288028] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:06:30,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:06:30,662 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:06:30,662 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148678488] [2021-10-13 00:06:30,663 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-13 00:06:30,664 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:06:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:06:30,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:06:30,666 INFO L87 Difference]: Start difference. First operand 119 states and 171 transitions. cyclomatic complexity: 54 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 00:06:30,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:06:30,801 INFO L93 Difference]: Finished difference Result 160 states and 219 transitions. [2021-10-13 00:06:30,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:06:30,802 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 160 states and 219 transitions. [2021-10-13 00:06:30,805 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-10-13 00:06:30,807 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 160 states to 160 states and 219 transitions. [2021-10-13 00:06:30,807 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 160 [2021-10-13 00:06:30,808 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 160 [2021-10-13 00:06:30,808 INFO L73 IsDeterministic]: Start isDeterministic. Operand 160 states and 219 transitions. [2021-10-13 00:06:30,809 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:06:30,810 INFO L681 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-13 00:06:30,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states and 219 transitions. [2021-10-13 00:06:30,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2021-10-13 00:06:30,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 160 states have (on average 1.36875) internal successors, (219), 159 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:06:30,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 219 transitions. [2021-10-13 00:06:30,825 INFO L704 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-13 00:06:30,825 INFO L587 BuchiCegarLoop]: Abstraction has 160 states and 219 transitions. [2021-10-13 00:06:30,825 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:06:30,825 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 160 states and 219 transitions. [2021-10-13 00:06:30,828 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 110 [2021-10-13 00:06:30,828 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:06:30,828 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:06:30,829 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:06:30,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:06:30,829 INFO L791 eck$LassoCheckResult]: Stem: 669#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(13);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(110, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string54.base, #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 1 + #t~string54.offset, 1);call write~init~int(102, #t~string54.base, 2 + #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 3 + #t~string54.offset, 1);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string56.base, #t~string56.offset, 1);call write~init~int(80, #t~string56.base, 1 + #t~string56.offset, 1);call write~init~int(117, #t~string56.base, 2 + #t~string56.offset, 1);call write~init~int(109, #t~string56.base, 3 + #t~string56.offset, 1);call write~init~int(112, #t~string56.base, 4 + #t~string56.offset, 1);call write~init~int(58, #t~string56.base, 5 + #t~string56.offset, 1);call write~init~int(0, #t~string56.base, 6 + #t~string56.offset, 1);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string58.base, #t~string58.offset, 1);call write~init~int(110, #t~string58.base, 1 + #t~string58.offset, 1);call write~init~int(0, #t~string58.base, 2 + #t~string58.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string60.base, #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 1 + #t~string60.offset, 1);call write~init~int(102, #t~string60.base, 2 + #t~string60.offset, 1);call write~init~int(0, #t~string60.base, 3 + #t~string60.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string62.base, #t~string62.offset, 1);call write~init~int(32, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string64.base, #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 1 + #t~string64.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(13);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string69.base, #t~string69.offset, 1);call write~init~int(77, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(101, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(116, #t~string69.base, 3 + #t~string69.offset, 1);call write~init~int(104, #t~string69.base, 4 + #t~string69.offset, 1);call write~init~int(58, #t~string69.base, 5 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 6 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string71.base, #t~string71.offset, 1);call write~init~int(82, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(73, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(84, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 4 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(75, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 616#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 617#L943 havoc valid_product_#res;havoc valid_product_~retValue_acc~11;havoc valid_product_~retValue_acc~11;valid_product_~retValue_acc~11 := 1;valid_product_#res := valid_product_~retValue_acc~11; 606#L951 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 607#L132 assume 0 != main_~tmp~0; 578#L105 havoc test_#t~nondet76, test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 553#L157-1 [2021-10-13 00:06:30,830 INFO L793 eck$LassoCheckResult]: Loop: 553#L157-1 assume !false; 574#L865 assume test_~splverifierCounter~0 < 4; 563#L866 test_~tmp~9 := test_#t~nondet76;havoc test_#t~nondet76; 564#L874 assume !(0 != test_~tmp~9); 569#L874-1 test_~tmp___0~2 := test_#t~nondet77;havoc test_#t~nondet77; 586#L884 assume !(0 != test_~tmp___0~2); 587#L884-1 test_~tmp___2~0 := test_#t~nondet78;havoc test_#t~nondet78; 599#L894 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 600#L902-2 assume !(0 != ~pumpRunning~0); 570#L564 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret46, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 571#L622 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret45, processEnvironment__wrappee__methaneQuery_~tmp~5;havoc processEnvironment__wrappee__methaneQuery_~tmp~5; 654#L596-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret65, isHighWaterLevel_~retValue_acc~6, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~6;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~9;havoc isHighWaterSensorDry_~retValue_acc~9; 596#L843-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~9 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~9; 597#L848-1 isHighWaterLevel_#t~ret65 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret65;havoc isHighWaterLevel_#t~ret65; 663#L741-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 584#L741-5 isHighWaterLevel_~retValue_acc~6 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~6; 585#L747-1 processEnvironment__wrappee__methaneQuery_#t~ret45 := isHighWaterLevel_#res;processEnvironment__wrappee__methaneQuery_~tmp~5 := processEnvironment__wrappee__methaneQuery_#t~ret45;havoc processEnvironment__wrappee__methaneQuery_#t~ret45; 625#L600-1 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5); 593#L571 havoc __utac_acc__Specification4_spec__1_#t~ret8, __utac_acc__Specification4_spec__1_#t~ret9, __utac_acc__Specification4_spec__1_~tmp~1, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~1;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~8;havoc getWaterLevel_~retValue_acc~8;getWaterLevel_~retValue_acc~8 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~8; 670#L835 __utac_acc__Specification4_spec__1_#t~ret8 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~1 := __utac_acc__Specification4_spec__1_#t~ret8;havoc __utac_acc__Specification4_spec__1_#t~ret8; 552#L157 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~1); 553#L157-1 [2021-10-13 00:06:30,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:30,830 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:06:30,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:30,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420025276] [2021-10-13 00:06:30,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:30,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:30,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:30,910 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:06:31,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:31,032 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:06:31,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:31,033 INFO L82 PathProgramCache]: Analyzing trace with hash -515194543, now seen corresponding path program 1 times [2021-10-13 00:06:31,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:31,034 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153472766] [2021-10-13 00:06:31,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:31,034 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:31,047 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:06:31,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:31,069 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:06:31,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:06:31,070 INFO L82 PathProgramCache]: Analyzing trace with hash -59123349, now seen corresponding path program 1 times [2021-10-13 00:06:31,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:06:31,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367532809] [2021-10-13 00:06:31,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:06:31,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:06:31,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:31,122 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:06:31,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:06:31,207 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:07:28,048 WARN L207 SmtUtils]: Spent 56.54 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:08:27,990 WARN L207 SmtUtils]: Spent 29.14 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:08:28,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:08:28 BoogieIcfgContainer [2021-10-13 00:08:28,119 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:08:28,120 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:08:28,120 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:08:28,120 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:08:28,121 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:06:29" (3/4) ... [2021-10-13 00:08:28,123 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:08:28,191 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:08:28,191 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:08:28,193 INFO L168 Benchmark]: Toolchain (without parser) took 120283.07 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 102.2 MB in the beginning and 79.8 MB in the end (delta: 22.4 MB). Peak memory consumption was 52.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,194 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 83.9 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:08:28,195 INFO L168 Benchmark]: CACSL2BoogieTranslator took 544.07 ms. Allocated memory is still 136.3 MB. Free memory was 101.9 MB in the beginning and 103.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,195 INFO L168 Benchmark]: Boogie Procedure Inliner took 96.68 ms. Allocated memory is still 136.3 MB. Free memory was 103.5 MB in the beginning and 99.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,196 INFO L168 Benchmark]: Boogie Preprocessor took 67.30 ms. Allocated memory is still 136.3 MB. Free memory was 99.3 MB in the beginning and 96.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,197 INFO L168 Benchmark]: RCFGBuilder took 1028.47 ms. Allocated memory is still 136.3 MB. Free memory was 96.4 MB in the beginning and 93.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,198 INFO L168 Benchmark]: BuchiAutomizer took 118467.23 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 93.1 MB in the beginning and 82.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,199 INFO L168 Benchmark]: Witness Printer took 71.80 ms. Allocated memory is still 167.8 MB. Free memory was 82.8 MB in the beginning and 79.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:08:28,204 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 83.9 MB. Free memory was 37.3 MB in the beginning and 37.2 MB in the end (delta: 40.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 544.07 ms. Allocated memory is still 136.3 MB. Free memory was 101.9 MB in the beginning and 103.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 96.68 ms. Allocated memory is still 136.3 MB. Free memory was 103.5 MB in the beginning and 99.3 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 67.30 ms. Allocated memory is still 136.3 MB. Free memory was 99.3 MB in the beginning and 96.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1028.47 ms. Allocated memory is still 136.3 MB. Free memory was 96.4 MB in the beginning and 93.1 MB in the end (delta: 3.3 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 118467.23 ms. Allocated memory was 136.3 MB in the beginning and 167.8 MB in the end (delta: 31.5 MB). Free memory was 93.1 MB in the beginning and 82.8 MB in the end (delta: 10.3 MB). Peak memory consumption was 93.0 MB. Max. memory is 16.1 GB. * Witness Printer took 71.80 ms. Allocated memory is still 167.8 MB. Free memory was 82.8 MB in the beginning and 79.8 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 160 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 118.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 117.9s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 37.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 160 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 332 SDtfs, 304 SDslu, 57 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 100.3ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 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: 864]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=9830} State at position 1 is {NULL=0, NULL=0, NULL=9830, NULL=9850, NULL=0, NULL=0, NULL=0, NULL=9853, methaneLevelCritical=0, retValue_acc=1, NULL=9835, NULL=0, tmp___1=0, tmp=0, NULL=9833, retValue_acc=0, NULL=0, NULL=9837, cleanupTimeShifts=4, NULL=9842, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4be466da=0, waterLevel=1, NULL=0, NULL=0, NULL=9847, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fd680ab=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65b450f8=0, NULL=9845, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dea4e03=0, \result=1, tmp=1, NULL=0, NULL=9849, retValue_acc=1, NULL=0, tmp=1, NULL=0, tmp___0=0, NULL=9832, NULL=9848, head=0, NULL=0, tmp=0, NULL=9834, NULL=0, NULL=0, NULL=0, NULL=9856, tmp=0, NULL=0, retValue_acc=0, NULL=0, NULL=9846, NULL=9855, NULL=9841, tmp___0=0, NULL=0, NULL=9844, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43cc18f7=0, NULL=0, tmp___0=0, NULL=9839, NULL=9831, NULL=9843, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35d12e15=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5648735b=71, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42128ff9=0, NULL=0, NULL=0, systemActive=1, NULL=9851, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6b173bea=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=9838, \result=0, NULL=9854, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11731331=0, NULL=9852, NULL=9840, tmp___2=71, splverifierCounter=0, NULL=0, NULL=9836, NULL=9858, NULL=9857} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L344] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L557] int pumpRunning = 0; [L558] int systemActive = 1; [L760] int waterLevel = 1; [L761] int methaneLevelCritical = 0; [L123] int retValue_acc ; [L124] int tmp ; [L947] int retValue_acc ; [L950] retValue_acc = 1 [L951] return (retValue_acc); [L130] tmp = valid_product() [L132] COND TRUE \read(tmp) [L855] int splverifierCounter ; [L856] int tmp ; [L857] int tmp___0 ; [L858] int tmp___1 ; [L859] int tmp___2 ; [L862] splverifierCounter = 0 Loop: [L864] COND TRUE 1 [L866] COND TRUE splverifierCounter < 4 [L872] tmp = __VERIFIER_nondet_int() [L874] COND FALSE !(\read(tmp)) [L882] tmp___0 = __VERIFIER_nondet_int() [L884] COND FALSE !(\read(tmp___0)) [L892] tmp___2 = __VERIFIER_nondet_int() [L894] COND TRUE \read(tmp___2) [L755] systemActive = 1 [L564] COND FALSE !(\read(pumpRunning)) [L571] COND TRUE \read(systemActive) [L619] int tmp ; [L622] COND FALSE !(\read(pumpRunning)) [L593] int tmp ; [L596] COND TRUE ! pumpRunning [L733] int retValue_acc ; [L734] int tmp ; [L735] int tmp___0 ; [L840] int retValue_acc ; [L843] COND TRUE waterLevel < 2 [L844] retValue_acc = 1 [L845] return (retValue_acc); [L739] tmp = isHighWaterSensorDry() [L741] COND TRUE \read(tmp) [L742] tmp___0 = 0 [L746] retValue_acc = tmp___0 [L747] return (retValue_acc); [L598] tmp = isHighWaterLevel() [L600] COND FALSE !(\read(tmp)) [L150] int tmp ; [L151] int tmp___0 ; [L831] int retValue_acc ; [L834] retValue_acc = waterLevel [L835] return (retValue_acc); [L155] tmp = getWaterLevel() [L157] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:08:28,287 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56484e5d-d0a2-481d-a978-344e42d0e879/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...