./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX --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 fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 09:32:23,305 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 09:32:23,309 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 09:32:23,392 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 09:32:23,393 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 09:32:23,398 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 09:32:23,401 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 09:32:23,405 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 09:32:23,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 09:32:23,415 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 09:32:23,416 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 09:32:23,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 09:32:23,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 09:32:23,437 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 09:32:23,440 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 09:32:23,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 09:32:23,452 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 09:32:23,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 09:32:23,457 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 09:32:23,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 09:32:23,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 09:32:23,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 09:32:23,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 09:32:23,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 09:32:23,488 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 09:32:23,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 09:32:23,489 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 09:32:23,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 09:32:23,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 09:32:23,494 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 09:32:23,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 09:32:23,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 09:32:23,498 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 09:32:23,500 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 09:32:23,502 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 09:32:23,502 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 09:32:23,503 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 09:32:23,503 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 09:32:23,503 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 09:32:23,505 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 09:32:23,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 09:32:23,507 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 09:32:23,556 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 09:32:23,557 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 09:32:23,558 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 09:32:23,558 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 09:32:23,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 09:32:23,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 09:32:23,560 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 09:32:23,561 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 09:32:23,561 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 09:32:23,561 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 09:32:23,562 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 09:32:23,563 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 09:32:23,563 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 09:32:23,563 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 09:32:23,563 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 09:32:23,564 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 09:32:23,564 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 09:32:23,564 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 09:32:23,564 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 09:32:23,565 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 09:32:23,565 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 09:32:23,565 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 09:32:23,565 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 09:32:23,565 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 09:32:23,566 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 09:32:23,566 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 09:32:23,568 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 09:32:23,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 09:32:23,569 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 09:32:23,569 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 09:32:23,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 09:32:23,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 09:32:23,571 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 09:32:23,571 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_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd0b8ceecda33bdad48c402c2c8ba6fe539641c6d50bf604e9c60e70c71a562b [2021-11-09 09:32:23,875 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 09:32:23,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 09:32:23,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 09:32:23,917 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 09:32:23,919 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 09:32:23,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-11-09 09:32:24,034 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/data/b2c484d20/82a2312a286c453094aa9aaeb3807a78/FLAGa780a1fde [2021-11-09 09:32:24,738 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 09:32:24,739 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c [2021-11-09 09:32:24,767 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/data/b2c484d20/82a2312a286c453094aa9aaeb3807a78/FLAGa780a1fde [2021-11-09 09:32:25,016 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/data/b2c484d20/82a2312a286c453094aa9aaeb3807a78 [2021-11-09 09:32:25,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 09:32:25,020 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 09:32:25,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 09:32:25,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 09:32:25,028 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 09:32:25,029 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,030 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e66a547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25, skipping insertion in model container [2021-11-09 09:32:25,031 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,039 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 09:32:25,110 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 09:32:25,325 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_9efee515-53c4-4cbf-86f1-5e96187781dd/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-11-09 09:32:25,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:32:25,427 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 09:32:25,513 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_9efee515-53c4-4cbf-86f1-5e96187781dd/sv-benchmarks/c/product-lines/minepump_spec1_product63.cil.c[6160,6173] [2021-11-09 09:32:25,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 09:32:25,613 INFO L208 MainTranslator]: Completed translation [2021-11-09 09:32:25,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25 WrapperNode [2021-11-09 09:32:25,614 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 09:32:25,615 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 09:32:25,616 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 09:32:25,616 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 09:32:25,624 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,655 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,722 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 09:32:25,723 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 09:32:25,723 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 09:32:25,723 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 09:32:25,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,742 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,742 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,783 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 09:32:25,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 09:32:25,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 09:32:25,796 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 09:32:25,806 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (1/1) ... [2021-11-09 09:32:25,814 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 09:32:25,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 09:32:25,857 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 09:32:25,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 09:32:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 09:32:25,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 09:32:25,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 09:32:25,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 09:32:27,316 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 09:32:27,317 INFO L299 CfgBuilder]: Removed 352 assume(true) statements. [2021-11-09 09:32:27,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:27 BoogieIcfgContainer [2021-11-09 09:32:27,320 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 09:32:27,321 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 09:32:27,321 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 09:32:27,326 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 09:32:27,326 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:32:27,327 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 09:32:25" (1/3) ... [2021-11-09 09:32:27,329 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@524b0c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:32:27, skipping insertion in model container [2021-11-09 09:32:27,329 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:32:27,329 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 09:32:25" (2/3) ... [2021-11-09 09:32:27,330 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@524b0c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 09:32:27, skipping insertion in model container [2021-11-09 09:32:27,330 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 09:32:27,330 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:27" (3/3) ... [2021-11-09 09:32:27,332 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product63.cil.c [2021-11-09 09:32:27,390 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 09:32:27,391 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 09:32:27,391 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 09:32:27,391 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 09:32:27,391 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 09:32:27,391 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 09:32:27,392 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 09:32:27,392 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 09:32:27,423 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-11-09 09:32:27,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-11-09 09:32:27,459 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:32:27,459 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:32:27,466 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:32:27,466 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:27,467 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 09:32:27,468 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 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) [2021-11-09 09:32:27,480 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-11-09 09:32:27,499 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:32:27,499 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:32:27,500 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:32:27,500 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:27,505 INFO L791 eck$LassoCheckResult]: Stem: 215#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 150#L-1true havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 114#L1013true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 186#L1021true main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 206#L847true assume 0 != main_~tmp~10; 107#L821true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 105#L869-1true [2021-11-09 09:32:27,506 INFO L793 eck$LassoCheckResult]: Loop: 105#L869-1true assume !false; 122#L331true assume test_~splverifierCounter~0 < 4; 138#L332true test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 205#L340true assume !(0 != test_~tmp~6); 151#L340-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 92#L350true assume !(0 != test_~tmp___0~2); 164#L350-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 19#L360true assume 0 != test_~tmp___2~0; 129#L366-1true assume !(0 != ~pumpRunning~0); 14#L69true assume !(0 != ~systemActive~0); 63#L76true havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 95#L931-5true __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 48#L869true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 105#L869-1true [2021-11-09 09:32:27,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:27,513 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 09:32:27,523 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:27,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213612002] [2021-11-09 09:32:27,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:27,524 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:27,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:27,811 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:28,145 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:32:28,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:28,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1666538037, now seen corresponding path program 1 times [2021-11-09 09:32:28,149 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:28,149 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888403632] [2021-11-09 09:32:28,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:28,150 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:28,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:28,167 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:28,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:28,191 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:32:28,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:28,197 INFO L85 PathProgramCache]: Analyzing trace with hash 47740901, now seen corresponding path program 1 times [2021-11-09 09:32:28,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:28,198 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300278224] [2021-11-09 09:32:28,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:28,199 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:28,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:28,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:28,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:28,386 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300278224] [2021-11-09 09:32:28,387 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300278224] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:28,388 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:28,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 09:32:28,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721772134] [2021-11-09 09:32:28,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:28,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 09:32:28,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 09:32:28,544 INFO L87 Difference]: Start difference. First operand has 224 states, 223 states have (on average 1.506726457399103) internal successors, (336), 223 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 09:32:28,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:28,860 INFO L93 Difference]: Finished difference Result 492 states and 714 transitions. [2021-11-09 09:32:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-09 09:32:28,863 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 492 states and 714 transitions. [2021-11-09 09:32:28,883 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 321 [2021-11-09 09:32:28,900 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 492 states to 471 states and 693 transitions. [2021-11-09 09:32:28,901 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 471 [2021-11-09 09:32:28,905 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 471 [2021-11-09 09:32:28,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 471 states and 693 transitions. [2021-11-09 09:32:28,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:32:28,916 INFO L681 BuchiCegarLoop]: Abstraction has 471 states and 693 transitions. [2021-11-09 09:32:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 471 states and 693 transitions. [2021-11-09 09:32:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 471 to 258. [2021-11-09 09:32:28,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 258 states have (on average 1.4651162790697674) internal successors, (378), 257 states have internal predecessors, (378), 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) [2021-11-09 09:32:28,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 378 transitions. [2021-11-09 09:32:28,987 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2021-11-09 09:32:28,988 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 378 transitions. [2021-11-09 09:32:28,988 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 09:32:28,988 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 378 transitions. [2021-11-09 09:32:28,992 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-09 09:32:28,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:32:28,992 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:32:28,994 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:32:28,994 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:28,995 INFO L791 eck$LassoCheckResult]: Stem: 951#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 922#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 898#L1013 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 899#L1021 main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 942#L847 assume 0 != main_~tmp~10; 894#L821 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 799#L869-1 [2021-11-09 09:32:28,995 INFO L793 eck$LassoCheckResult]: Loop: 799#L869-1 assume !false; 892#L331 assume test_~splverifierCounter~0 < 4; 906#L332 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 914#L340 assume !(0 != test_~tmp~6); 923#L340-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 875#L350 assume !(0 != test_~tmp___0~2); 876#L350-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 766#L360 assume 0 != test_~tmp___2~0; 767#L366-1 assume !(0 != ~pumpRunning~0); 756#L69 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 750#L153 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 751#L127-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 938#L101-3 assume !(0 == ~pumpRunning~0); 746#L76 havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 838#L931-5 __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 815#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 799#L869-1 [2021-11-09 09:32:28,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:28,996 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 09:32:28,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:28,997 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80612859] [2021-11-09 09:32:28,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:28,997 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,067 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:29,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,164 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:32:29,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,173 INFO L85 PathProgramCache]: Analyzing trace with hash -1439331007, now seen corresponding path program 1 times [2021-11-09 09:32:29,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,174 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111181107] [2021-11-09 09:32:29,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 09:32:29,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 09:32:29,197 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 09:32:29,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111181107] [2021-11-09 09:32:29,206 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111181107] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 09:32:29,207 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 09:32:29,207 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-09 09:32:29,207 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998159449] [2021-11-09 09:32:29,208 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-09 09:32:29,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 09:32:29,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-09 09:32:29,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-09 09:32:29,210 INFO L87 Difference]: Start difference. First operand 258 states and 378 transitions. cyclomatic complexity: 123 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-11-09 09:32:29,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 09:32:29,359 INFO L93 Difference]: Finished difference Result 252 states and 346 transitions. [2021-11-09 09:32:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-09 09:32:29,360 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 252 states and 346 transitions. [2021-11-09 09:32:29,363 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-09 09:32:29,366 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 252 states to 252 states and 346 transitions. [2021-11-09 09:32:29,367 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 252 [2021-11-09 09:32:29,367 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 252 [2021-11-09 09:32:29,368 INFO L73 IsDeterministic]: Start isDeterministic. Operand 252 states and 346 transitions. [2021-11-09 09:32:29,368 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 09:32:29,369 INFO L681 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-09 09:32:29,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states and 346 transitions. [2021-11-09 09:32:29,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 252. [2021-11-09 09:32:29,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 252 states have (on average 1.373015873015873) internal successors, (346), 251 states have internal predecessors, (346), 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) [2021-11-09 09:32:29,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 346 transitions. [2021-11-09 09:32:29,397 INFO L704 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-09 09:32:29,397 INFO L587 BuchiCegarLoop]: Abstraction has 252 states and 346 transitions. [2021-11-09 09:32:29,397 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-09 09:32:29,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 252 states and 346 transitions. [2021-11-09 09:32:29,400 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 176 [2021-11-09 09:32:29,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 09:32:29,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 09:32:29,403 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 09:32:29,403 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 09:32:29,404 INFO L791 eck$LassoCheckResult]: Stem: 1434#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~string13.base, #t~string13.offset := #Ultimate.allocOnStack(13);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(110, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string17.base, #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(102, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 3 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string19.base, #t~string19.offset, 1);call write~init~int(80, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(117, #t~string19.base, 2 + #t~string19.offset, 1);call write~init~int(109, #t~string19.base, 3 + #t~string19.offset, 1);call write~init~int(112, #t~string19.base, 4 + #t~string19.offset, 1);call write~init~int(58, #t~string19.base, 5 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 6 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(110, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 2 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string23.base, #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(102, #t~string23.base, 2 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 3 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string25.base, #t~string25.offset, 1);call write~init~int(32, #t~string25.base, 1 + #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 2 + #t~string25.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string27.base, #t~string27.offset, 1);call write~init~int(0, #t~string27.base, 1 + #t~string27.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1345#L-1 havoc main_#res;havoc main_#t~ret69, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1346#L1013 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1412#L1021 main_#t~ret69 := valid_product_#res;main_~tmp~10 := main_#t~ret69;havoc main_#t~ret69; 1413#L847 assume 0 != main_~tmp~10; 1424#L821 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1350#L869-1 [2021-11-09 09:32:29,404 INFO L793 eck$LassoCheckResult]: Loop: 1350#L869-1 assume !false; 1435#L331 assume test_~splverifierCounter~0 < 4; 1481#L332 test_~tmp~6 := test_#t~nondet30;havoc test_#t~nondet30; 1423#L340 assume !(0 != test_~tmp~6); 1343#L340-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 1344#L350 assume !(0 != test_~tmp___0~2); 1284#L350-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 1295#L360 assume 0 != test_~tmp___2~0; 1289#L366-1 assume !(0 != ~pumpRunning~0); 1282#L69 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1266#L153 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret8, processEnvironment__wrappee__methaneQuery_~tmp~1;havoc processEnvironment__wrappee__methaneQuery_~tmp~1; 1267#L127-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1394#L101-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret28, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1341#L971-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1342#L976-3 isHighWaterLevel_#t~ret28 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret28;havoc isHighWaterLevel_#t~ret28; 1417#L272-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~0 := 0; 1364#L272-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1328#L278-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1329#L105-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1264#L76 havoc __utac_acc__Specification1_spec__1_#t~ret70, __utac_acc__Specification1_spec__1_#t~ret71, __utac_acc__Specification1_spec__1_~tmp~11, __utac_acc__Specification1_spec__1_~tmp___0~3;havoc __utac_acc__Specification1_spec__1_~tmp~11;havoc __utac_acc__Specification1_spec__1_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~8;havoc isMethaneLevelCritical_~retValue_acc~8;isMethaneLevelCritical_~retValue_acc~8 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~8; 1389#L931-5 __utac_acc__Specification1_spec__1_#t~ret70 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~11 := __utac_acc__Specification1_spec__1_#t~ret70;havoc __utac_acc__Specification1_spec__1_#t~ret70; 1366#L869 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~11); 1350#L869-1 [2021-11-09 09:32:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-11-09 09:32:29,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669244765] [2021-11-09 09:32:29,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,488 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:29,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,566 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:32:29,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1579572237, now seen corresponding path program 1 times [2021-11-09 09:32:29,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,568 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754534210] [2021-11-09 09:32:29,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,574 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:29,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,583 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:32:29,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 09:32:29,584 INFO L85 PathProgramCache]: Analyzing trace with hash -1462089933, now seen corresponding path program 1 times [2021-11-09 09:32:29,584 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 09:32:29,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501998911] [2021-11-09 09:32:29,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 09:32:29,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 09:32:29,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,624 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 09:32:29,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 09:32:29,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:33:31,848 WARN L207 SmtUtils]: Spent 1.03 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 09:34:41,515 WARN L207 SmtUtils]: Spent 33.90 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 09:34:41,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:34:41 BoogieIcfgContainer [2021-11-09 09:34:41,621 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:34:41,622 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:34:41,622 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:34:41,623 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:34:41,623 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 09:32:27" (3/4) ... [2021-11-09 09:34:41,626 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:34:41,685 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:34:41,685 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:34:41,687 INFO L168 Benchmark]: Toolchain (without parser) took 136666.43 ms. Allocated memory was 92.3 MB in the beginning and 182.5 MB in the end (delta: 90.2 MB). Free memory was 56.5 MB in the beginning and 59.3 MB in the end (delta: -2.7 MB). Peak memory consumption was 90.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,687 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 58.4 MB in the beginning and 58.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:34:41,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 592.99 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 108.2 MB in the end (delta: -51.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,689 INFO L168 Benchmark]: Boogie Procedure Inliner took 106.93 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 102.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,690 INFO L168 Benchmark]: Boogie Preprocessor took 71.75 ms. Allocated memory is still 134.2 MB. Free memory was 102.5 MB in the beginning and 98.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,690 INFO L168 Benchmark]: RCFGBuilder took 1524.84 ms. Allocated memory is still 134.2 MB. Free memory was 98.7 MB in the beginning and 46.8 MB in the end (delta: 51.9 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,691 INFO L168 Benchmark]: BuchiAutomizer took 134300.47 ms. Allocated memory was 134.2 MB in the beginning and 182.5 MB in the end (delta: 48.2 MB). Free memory was 46.8 MB in the beginning and 62.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,692 INFO L168 Benchmark]: Witness Printer took 63.33 ms. Allocated memory is still 182.5 MB. Free memory was 62.4 MB in the beginning and 59.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:34:41,695 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 58.4 MB in the beginning and 58.3 MB in the end (delta: 56.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 592.99 ms. Allocated memory was 92.3 MB in the beginning and 134.2 MB in the end (delta: 41.9 MB). Free memory was 56.3 MB in the beginning and 108.2 MB in the end (delta: -51.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 106.93 ms. Allocated memory is still 134.2 MB. Free memory was 108.2 MB in the beginning and 102.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 71.75 ms. Allocated memory is still 134.2 MB. Free memory was 102.5 MB in the beginning and 98.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1524.84 ms. Allocated memory is still 134.2 MB. Free memory was 98.7 MB in the beginning and 46.8 MB in the end (delta: 51.9 MB). Peak memory consumption was 52.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 134300.47 ms. Allocated memory was 134.2 MB in the beginning and 182.5 MB in the end (delta: 48.2 MB). Free memory was 46.8 MB in the beginning and 62.4 MB in the end (delta: -15.6 MB). Peak memory consumption was 52.7 MB. Max. memory is 16.1 GB. * Witness Printer took 63.33 ms. Allocated memory is still 182.5 MB. Free memory was 62.4 MB in the beginning and 59.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 252 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 134.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 133.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 213 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 258 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 550 SDtfs, 1444 SDslu, 1274 SDs, 0 SdLazy, 85 SolverSat, 44 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 330]: 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=5132, NULL=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@472cb06b=0, NULL=5144, NULL=0, NULL=5138, retValue_acc=1, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9ba513a=0, retValue_acc=0, tmp=0, tmp___1=0, NULL=5119, NULL=0, cleanupTimeShifts=4, tmp=1, NULL=5123, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30c0bcb1=0, NULL=0, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@149adc8f=0, \result=1, head=0, pumpRunning=0, NULL=5135, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77feafe4=61, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@aff4946=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@491e1475=0, NULL=5136, NULL=0, tmp=1, NULL=0, NULL=5140, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@694f555b=0, NULL=0, tmp___0=0, NULL=5142, tmp=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bb59b26=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@588570f1=0, NULL=5129, NULL=5137, NULL=5120, NULL=5126, NULL=0, NULL=0, NULL=5143, retValue_acc=0, NULL=5134, tmp___0=0, NULL=0, NULL=0, NULL=0, tmp=0, NULL=5127, tmp=0, tmp___0=0, NULL=5130, NULL=0, NULL=0, NULL=0, systemActive=1, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70be8d53=0, NULL=0, NULL=0, NULL=0, NULL=5131, \result=0, NULL=5128, NULL=5122, NULL=0, NULL=5141, NULL=0, NULL=0, NULL=5146, NULL=5125, tmp___2=61, retValue_acc=1, splverifierCounter=0, NULL=0, \result=0, NULL=5124, NULL=5145, NULL=5121, NULL=0, NULL=5133, NULL=5139} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int pumpRunning = 0; [L62] int systemActive = 1; [L565] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L762] int cleanupTimeShifts = 4; [L888] int waterLevel = 1; [L889] int methaneLevelCritical = 0; [L838] int retValue_acc ; [L839] int tmp ; [L1017] int retValue_acc ; [L1020] retValue_acc = 1 [L1021] return (retValue_acc); [L845] tmp = valid_product() [L847] COND TRUE \read(tmp) [L321] int splverifierCounter ; [L322] int tmp ; [L323] int tmp___0 ; [L324] int tmp___1 ; [L325] int tmp___2 ; [L328] splverifierCounter = 0 Loop: [L330] COND TRUE 1 [L332] COND TRUE splverifierCounter < 4 [L338] tmp = __VERIFIER_nondet_int() [L340] COND FALSE !(\read(tmp)) [L348] tmp___0 = __VERIFIER_nondet_int() [L350] COND FALSE !(\read(tmp___0)) [L358] tmp___2 = __VERIFIER_nondet_int() [L360] COND TRUE \read(tmp___2) [L69] COND FALSE !(\read(pumpRunning)) [L76] COND TRUE \read(systemActive) [L150] int tmp ; [L153] COND FALSE !(\read(pumpRunning)) [L124] int tmp ; [L127] COND FALSE !(\read(pumpRunning)) [L98] int tmp ; [L101] COND TRUE ! pumpRunning [L264] int retValue_acc ; [L265] int tmp ; [L266] int tmp___0 ; [L968] int retValue_acc ; [L971] COND TRUE waterLevel < 2 [L972] retValue_acc = 1 [L973] return (retValue_acc); [L270] tmp = isHighWaterSensorDry() [L272] COND TRUE \read(tmp) [L273] tmp___0 = 0 [L277] retValue_acc = tmp___0 [L278] return (retValue_acc); [L103] tmp = isHighWaterLevel() [L105] COND FALSE !(\read(tmp)) [L862] int tmp ; [L863] int tmp___0 ; [L927] int retValue_acc ; [L930] retValue_acc = methaneLevelCritical [L931] return (retValue_acc); [L867] tmp = isMethaneLevelCritical() [L869] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:34:41,785 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9efee515-53c4-4cbf-86f1-5e96187781dd/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)