./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD --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 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 23:15:46,626 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:15:46,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:15:46,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:15:46,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:15:46,710 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:15:46,713 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:15:46,716 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:15:46,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:15:46,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:15:46,722 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:15:46,724 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:15:46,725 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:15:46,726 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:15:46,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:15:46,731 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:15:46,732 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:15:46,734 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:15:46,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:15:46,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:15:46,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:15:46,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:15:46,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:15:46,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:15:46,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:15:46,753 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:15:46,754 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:15:46,756 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:15:46,757 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:15:46,758 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:15:46,759 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:15:46,760 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:15:46,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:15:46,765 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:15:46,766 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:15:46,767 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:15:46,768 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:15:46,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:15:46,769 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:15:46,771 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:15:46,772 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:15:46,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:15:46,804 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:15:46,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:15:46,805 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:15:46,806 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:15:46,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:15:46,808 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:15:46,808 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:15:46,808 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:15:46,809 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:15:46,809 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:15:46,809 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:15:46,810 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:15:46,810 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:15:46,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:15:46,811 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:15:46,811 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:15:46,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:15:46,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:15:46,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:15:46,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:15:46,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:15:46,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:15:46,814 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:15:46,814 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:15:46,814 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:15:46,815 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:15:46,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:15:46,816 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:15:46,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:15:46,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:15:46,817 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:15:46,817 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:15:46,819 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:15:46,819 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_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 685bdac90b32b89d64927338575dc6f79737e9f84bb9272d4bfb0c942aa4ae35 [2021-10-28 23:15:47,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:15:47,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:15:47,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:15:47,282 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:15:47,284 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:15:47,285 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2021-10-28 23:15:47,393 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/data/68e5db9a4/184b79cfce00400dad182a8ed7e04041/FLAG879789891 [2021-10-28 23:15:48,139 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:15:48,139 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c [2021-10-28 23:15:48,156 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/data/68e5db9a4/184b79cfce00400dad182a8ed7e04041/FLAG879789891 [2021-10-28 23:15:48,390 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/data/68e5db9a4/184b79cfce00400dad182a8ed7e04041 [2021-10-28 23:15:48,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:15:48,395 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:15:48,397 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:15:48,397 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:15:48,407 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:15:48,408 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:15:48" (1/1) ... [2021-10-28 23:15:48,411 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45c966ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:48, skipping insertion in model container [2021-10-28 23:15:48,411 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:15:48" (1/1) ... [2021-10-28 23:15:48,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:15:48,467 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:15:48,853 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_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2021-10-28 23:15:48,854 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:15:48,870 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:15:48,994 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_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/sv-benchmarks/c/product-lines/minepump_spec2_product55.cil.c[19412,19425] [2021-10-28 23:15:48,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:15:49,019 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:15:49,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49 WrapperNode [2021-10-28 23:15:49,019 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:15:49,021 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:15:49,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:15:49,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:15:49,030 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,048 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,119 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:15:49,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:15:49,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:15:49,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:15:49,130 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,130 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,170 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,174 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:15:49,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:15:49,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:15:49,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:15:49,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (1/1) ... [2021-10-28 23:15:49,195 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:15:49,221 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:15:49,246 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:15:49,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:15:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:15:49,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:15:49,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:15:49,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:15:50,644 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:15:50,644 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-10-28 23:15:50,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:50 BoogieIcfgContainer [2021-10-28 23:15:50,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:15:50,649 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:15:50,649 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:15:50,653 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:15:50,654 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:50,655 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:15:48" (1/3) ... [2021-10-28 23:15:50,656 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbe04fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:15:50, skipping insertion in model container [2021-10-28 23:15:50,657 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:50,657 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:15:49" (2/3) ... [2021-10-28 23:15:50,657 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7bbe04fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:15:50, skipping insertion in model container [2021-10-28 23:15:50,658 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:15:50,658 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:50" (3/3) ... [2021-10-28 23:15:50,660 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product55.cil.c [2021-10-28 23:15:50,711 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:15:50,711 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:15:50,711 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:15:50,711 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:15:50,712 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:15:50,712 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:15:50,712 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:15:50,712 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:15:50,735 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.544502617801047) internal successors, (295), 191 states have internal predecessors, (295), 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) [2021-10-28 23:15:50,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-10-28 23:15:50,771 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:50,772 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:50,781 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:50,782 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:50,782 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:15:50,783 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.544502617801047) internal successors, (295), 191 states have internal predecessors, (295), 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) [2021-10-28 23:15:50,795 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 125 [2021-10-28 23:15:50,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:50,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:50,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:50,797 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:50,803 INFO L791 eck$LassoCheckResult]: Stem: 170#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);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(75, #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(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 54#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 88#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 31#L83true main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 46#L1001true assume 0 != main_~tmp~10; 147#L977true ~methAndRunningLastTime~0 := 0; 79#L885true havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 113#L896-1true [2021-10-28 23:15:50,804 INFO L793 eck$LassoCheckResult]: Loop: 113#L896-1true assume !false; 178#L213true assume test_~splverifierCounter~0 < 4; 176#L214true test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 123#L222true assume !(0 != test_~tmp~0); 91#L222-1true test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 193#L232true assume !(0 != test_~tmp___0~0); 149#L232-1true test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 190#L242true assume 0 != test_~tmp___2~0; 110#L248-1true assume !(0 != ~pumpRunning~0); 21#L281true assume !(0 != ~systemActive~0); 41#L288true havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 13#L139-1true __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 15#L896true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 113#L896-1true [2021-10-28 23:15:50,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:50,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:15:50,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:50,822 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798298357] [2021-10-28 23:15:50,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:50,823 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:51,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:51,137 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:51,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:51,387 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:51,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:51,397 INFO L85 PathProgramCache]: Analyzing trace with hash 16390483, now seen corresponding path program 1 times [2021-10-28 23:15:51,397 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:51,398 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848417483] [2021-10-28 23:15:51,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:51,398 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:51,418 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:51,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:51,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:51,432 INFO L85 PathProgramCache]: Analyzing trace with hash 849686989, now seen corresponding path program 1 times [2021-10-28 23:15:51,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:51,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950203165] [2021-10-28 23:15:51,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:51,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:51,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:51,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:51,593 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:51,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950203165] [2021-10-28 23:15:51,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950203165] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:15:51,594 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:15:51,595 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:15:51,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20712203] [2021-10-28 23:15:51,741 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:51,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:15:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:15:51,762 INFO L87 Difference]: Start difference. First operand has 192 states, 191 states have (on average 1.544502617801047) internal successors, (295), 191 states have internal predecessors, (295), 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 3.3333333333333335) internal successors, (20), 5 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:15:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:52,106 INFO L93 Difference]: Finished difference Result 430 states and 637 transitions. [2021-10-28 23:15:52,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 23:15:52,109 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 430 states and 637 transitions. [2021-10-28 23:15:52,123 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 279 [2021-10-28 23:15:52,136 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 430 states to 409 states and 616 transitions. [2021-10-28 23:15:52,137 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 409 [2021-10-28 23:15:52,140 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 409 [2021-10-28 23:15:52,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 409 states and 616 transitions. [2021-10-28 23:15:52,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:52,145 INFO L681 BuchiCegarLoop]: Abstraction has 409 states and 616 transitions. [2021-10-28 23:15:52,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states and 616 transitions. [2021-10-28 23:15:52,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 229. [2021-10-28 23:15:52,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 229 states, 229 states have (on average 1.497816593886463) internal successors, (343), 228 states have internal predecessors, (343), 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) [2021-10-28 23:15:52,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 229 states to 229 states and 343 transitions. [2021-10-28 23:15:52,232 INFO L704 BuchiCegarLoop]: Abstraction has 229 states and 343 transitions. [2021-10-28 23:15:52,233 INFO L587 BuchiCegarLoop]: Abstraction has 229 states and 343 transitions. [2021-10-28 23:15:52,233 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:15:52,234 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 229 states and 343 transitions. [2021-10-28 23:15:52,238 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 156 [2021-10-28 23:15:52,238 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:52,238 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:52,242 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:52,242 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:52,243 INFO L791 eck$LassoCheckResult]: Stem: 822#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);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(75, #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(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 726#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 727#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 688#L83 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 689#L1001 assume 0 != main_~tmp~10; 713#L977 ~methAndRunningLastTime~0 := 0; 760#L885 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 664#L896-1 [2021-10-28 23:15:52,243 INFO L793 eck$LassoCheckResult]: Loop: 664#L896-1 assume !false; 793#L213 assume test_~splverifierCounter~0 < 4; 824#L214 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 798#L222 assume !(0 != test_~tmp~0); 757#L222-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 774#L232 assume !(0 != test_~tmp___0~0); 781#L232-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 813#L242 assume 0 != test_~tmp___2~0; 790#L248-1 assume !(0 != ~pumpRunning~0); 674#L281 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 675#L365 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret23, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 758#L339-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret22, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 704#L313-3 assume !(0 == ~pumpRunning~0); 643#L288 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 659#L139-1 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 660#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 664#L896-1 [2021-10-28 23:15:52,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:52,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:15:52,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:52,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132546785] [2021-10-28 23:15:52,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:52,245 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:52,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,327 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:52,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,397 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:52,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:52,399 INFO L85 PathProgramCache]: Analyzing trace with hash 566198012, now seen corresponding path program 1 times [2021-10-28 23:15:52,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:52,399 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966872254] [2021-10-28 23:15:52,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:52,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:52,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:15:52,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:15:52,419 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:15:52,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966872254] [2021-10-28 23:15:52,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966872254] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:15:52,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:15:52,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:15:52,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980515964] [2021-10-28 23:15:52,421 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:15:52,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:15:52,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:15:52,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:15:52,423 INFO L87 Difference]: Start difference. First operand 229 states and 343 transitions. cyclomatic complexity: 117 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) [2021-10-28 23:15:52,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:15:52,618 INFO L93 Difference]: Finished difference Result 235 states and 329 transitions. [2021-10-28 23:15:52,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:15:52,620 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 235 states and 329 transitions. [2021-10-28 23:15:52,627 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-10-28 23:15:52,634 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 235 states to 235 states and 329 transitions. [2021-10-28 23:15:52,634 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 235 [2021-10-28 23:15:52,636 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 235 [2021-10-28 23:15:52,637 INFO L73 IsDeterministic]: Start isDeterministic. Operand 235 states and 329 transitions. [2021-10-28 23:15:52,647 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:15:52,648 INFO L681 BuchiCegarLoop]: Abstraction has 235 states and 329 transitions. [2021-10-28 23:15:52,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states and 329 transitions. [2021-10-28 23:15:52,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2021-10-28 23:15:52,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 235 states have (on average 1.4) internal successors, (329), 234 states have internal predecessors, (329), 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) [2021-10-28 23:15:52,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 329 transitions. [2021-10-28 23:15:52,666 INFO L704 BuchiCegarLoop]: Abstraction has 235 states and 329 transitions. [2021-10-28 23:15:52,666 INFO L587 BuchiCegarLoop]: Abstraction has 235 states and 329 transitions. [2021-10-28 23:15:52,667 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:15:52,668 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 235 states and 329 transitions. [2021-10-28 23:15:52,670 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2021-10-28 23:15:52,673 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:15:52,673 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:15:52,674 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:52,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:15:52,677 INFO L791 eck$LassoCheckResult]: Stem: 1270#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);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(75, #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(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(30);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(9);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(21);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(30);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(9);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(21);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(30);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(9);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(25);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(30);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(9);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4; 1183#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~13, main_~tmp~10;havoc main_~retValue_acc~13;havoc main_~tmp~10; 1184#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 1154#L83 main_#t~ret81 := valid_product_#res;main_~tmp~10 := main_#t~ret81;havoc main_#t~ret81; 1155#L1001 assume 0 != main_~tmp~10; 1171#L977 ~methAndRunningLastTime~0 := 0; 1208#L885 havoc test_#t~nondet18, test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_~splverifierCounter~0, test_~tmp~0, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~0;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1209#L896-1 [2021-10-28 23:15:52,678 INFO L793 eck$LassoCheckResult]: Loop: 1209#L896-1 assume !false; 1331#L213 assume test_~splverifierCounter~0 < 4; 1330#L214 test_~tmp~0 := test_#t~nondet18;havoc test_#t~nondet18; 1245#L222 assume !(0 != test_~tmp~0); 1207#L222-1 test_~tmp___0~0 := test_#t~nondet19;havoc test_#t~nondet19; 1219#L232 assume !(0 != test_~tmp___0~0); 1320#L232-1 test_~tmp___2~0 := test_#t~nondet20;havoc test_#t~nondet20; 1318#L242 assume 0 != test_~tmp___2~0; 1317#L248-1 assume !(0 != ~pumpRunning~0); 1140#L281 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret24, processEnvironment_~tmp~3;havoc processEnvironment_~tmp~3; 1141#L365 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret23, processEnvironment__wrappee__lowWaterSensor_~tmp~2;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~2; 1205#L339-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret22, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 1165#L313-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret42, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~4, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~4;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 1119#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 1120#L184-3 isHighWaterLevel_#t~ret42 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~4 := isHighWaterLevel_#t~ret42;havoc isHighWaterLevel_#t~ret42; 1250#L467-9 assume 0 != isHighWaterLevel_~tmp~4;isHighWaterLevel_~tmp___0~1 := 0; 1181#L467-11 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1182#L473-3 processEnvironment__wrappee__highWaterSensor_#t~ret22 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret22;havoc processEnvironment__wrappee__highWaterSensor_#t~ret22; 1255#L317-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 1116#L288 havoc __utac_acc__Specification2_spec__2_#t~ret79, __utac_acc__Specification2_spec__2_#t~ret80, __utac_acc__Specification2_spec__2_~tmp~9, __utac_acc__Specification2_spec__2_~tmp___0~3;havoc __utac_acc__Specification2_spec__2_~tmp~9;havoc __utac_acc__Specification2_spec__2_~tmp___0~3;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 1334#L139-1 __utac_acc__Specification2_spec__2_#t~ret79 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~9 := __utac_acc__Specification2_spec__2_#t~ret79;havoc __utac_acc__Specification2_spec__2_#t~ret79; 1333#L896 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~9);~methAndRunningLastTime~0 := 0; 1209#L896-1 [2021-10-28 23:15:52,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:52,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:15:52,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:52,679 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969519392] [2021-10-28 23:15:52,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:52,681 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:52,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,756 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:52,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,876 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:52,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:52,882 INFO L85 PathProgramCache]: Analyzing trace with hash -746930584, now seen corresponding path program 1 times [2021-10-28 23:15:52,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:52,882 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174673172] [2021-10-28 23:15:52,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:52,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:52,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,889 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:52,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,913 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:15:52,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:15:52,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1614115026, now seen corresponding path program 1 times [2021-10-28 23:15:52,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:15:52,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650982001] [2021-10-28 23:15:52,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:15:52,919 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:15:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:52,968 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:15:53,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:15:53,048 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:17:11,516 WARN L207 SmtUtils]: Spent 1.30 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:18:32,671 WARN L207 SmtUtils]: Spent 39.52 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:18:32,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:18:32 BoogieIcfgContainer [2021-10-28 23:18:32,802 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:18:32,802 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:18:32,803 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:18:32,803 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:18:32,804 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:15:50" (3/4) ... [2021-10-28 23:18:32,807 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:18:32,879 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:18:32,880 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:18:32,882 INFO L168 Benchmark]: Toolchain (without parser) took 164486.42 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 73.4 MB in the beginning and 50.7 MB in the end (delta: 22.7 MB). Peak memory consumption was 54.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,883 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:18:32,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 623.16 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 75.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,884 INFO L168 Benchmark]: Boogie Procedure Inliner took 98.08 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 71.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,884 INFO L168 Benchmark]: Boogie Preprocessor took 61.83 ms. Allocated memory is still 109.1 MB. Free memory was 71.0 MB in the beginning and 67.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,885 INFO L168 Benchmark]: RCFGBuilder took 1465.45 ms. Allocated memory is still 109.1 MB. Free memory was 67.4 MB in the beginning and 66.9 MB in the end (delta: 527.0 kB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,885 INFO L168 Benchmark]: BuchiAutomizer took 162153.40 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 66.9 MB in the beginning and 52.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 72.8 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,886 INFO L168 Benchmark]: Witness Printer took 78.14 ms. Allocated memory is still 140.5 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:18:32,889 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 109.1 MB. Free memory was 85.1 MB in the beginning and 85.1 MB in the end (delta: 30.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 623.16 ms. Allocated memory is still 109.1 MB. Free memory was 73.3 MB in the beginning and 75.7 MB in the end (delta: -2.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 98.08 ms. Allocated memory is still 109.1 MB. Free memory was 75.7 MB in the beginning and 71.0 MB in the end (delta: 4.7 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.83 ms. Allocated memory is still 109.1 MB. Free memory was 71.0 MB in the beginning and 67.4 MB in the end (delta: 3.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1465.45 ms. Allocated memory is still 109.1 MB. Free memory was 67.4 MB in the beginning and 66.9 MB in the end (delta: 527.0 kB). Peak memory consumption was 39.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 162153.40 ms. Allocated memory was 109.1 MB in the beginning and 140.5 MB in the end (delta: 31.5 MB). Free memory was 66.9 MB in the beginning and 52.8 MB in the end (delta: 14.1 MB). Peak memory consumption was 72.8 MB. Max. memory is 16.1 GB. * Witness Printer took 78.14 ms. Allocated memory is still 140.5 MB. Free memory was 52.8 MB in the beginning and 50.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 235 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 162.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 161.2s. 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, 180 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 235 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 502 SDtfs, 1518 SDslu, 1109 SDs, 0 SdLazy, 81 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: 212]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=20466} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=20466, NULL=20470, NULL=0, NULL=20492, NULL=20472, methaneLevelCritical=0, NULL=20473, retValue_acc=0, NULL=0, tmp___1=0, NULL=20486, NULL=0, NULL=20477, cleanupTimeShifts=4, tmp=0, tmp=1, NULL=20487, NULL=0, waterLevel=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@486dbbad=0, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=20471, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1686fc3f=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, tmp=1, NULL=20482, NULL=0, NULL=0, NULL=0, NULL=0, methAndRunningLastTime=0, NULL=20468, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61f49630=0, NULL=20481, NULL=20494, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dd463e0=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cdaff9f=0, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7cfafacc=56, NULL=20479, NULL=0, NULL=0, NULL=0, NULL=20476, NULL=20490, NULL=20488, NULL=0, NULL=20478, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66214138=0, NULL=20485, tmp=0, NULL=20483, tmp___0=0, NULL=0, NULL=20474, NULL=0, NULL=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2d1b8b01=0, NULL=20467, NULL=0, NULL=0, systemActive=1, \result=0, retValue_acc=0, NULL=20493, retValue_acc=0, \result=0, NULL=20484, NULL=0, NULL=20475, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d0b6eb2=0, NULL=20469, NULL=20491, retValue_acc=1, tmp___0=0, tmp___2=56, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=20489, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35e23020=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1425d560=0, NULL=0, NULL=0, NULL=20480, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L273] int pumpRunning = 0; [L274] int systemActive = 1; [L681] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L879] int methAndRunningLastTime ; [L918] int cleanupTimeShifts = 4; [L992] int retValue_acc ; [L993] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L999] tmp = valid_product() [L1001] COND TRUE \read(tmp) [L884] methAndRunningLastTime = 0 [L203] int splverifierCounter ; [L204] int tmp ; [L205] int tmp___0 ; [L206] int tmp___1 ; [L207] int tmp___2 ; [L210] splverifierCounter = 0 Loop: [L212] COND TRUE 1 [L214] COND TRUE splverifierCounter < 4 [L220] tmp = __VERIFIER_nondet_int() [L222] COND FALSE !(\read(tmp)) [L230] tmp___0 = __VERIFIER_nondet_int() [L232] COND FALSE !(\read(tmp___0)) [L240] tmp___2 = __VERIFIER_nondet_int() [L242] COND TRUE \read(tmp___2) [L281] COND FALSE !(\read(pumpRunning)) [L288] COND TRUE \read(systemActive) [L362] int tmp ; [L365] COND FALSE !(\read(pumpRunning)) [L336] int tmp ; [L339] COND FALSE !(\read(pumpRunning)) [L310] int tmp ; [L313] COND TRUE ! pumpRunning [L459] int retValue_acc ; [L460] int tmp ; [L461] int tmp___0 ; [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L465] tmp = isHighWaterSensorDry() [L467] COND TRUE \read(tmp) [L468] tmp___0 = 0 [L472] retValue_acc = tmp___0 [L473] return (retValue_acc); [L315] tmp = isHighWaterLevel() [L317] COND FALSE !(\read(tmp)) [L889] int tmp ; [L890] int tmp___0 ; [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L894] tmp = isMethaneLevelCritical() [L896] COND FALSE !(\read(tmp)) [L912] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:18:32,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0534cb1c-8a3d-4748-ab5f-80e1fbbe7a3a/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...