./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2dd43f49bf0c50f8e266b43f103f07ac5fa1d3b0 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 01:05:54,557 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 01:05:54,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 01:05:54,598 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 01:05:54,599 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 01:05:54,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 01:05:54,603 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 01:05:54,605 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 01:05:54,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 01:05:54,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 01:05:54,611 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 01:05:54,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 01:05:54,617 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 01:05:54,624 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 01:05:54,628 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 01:05:54,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 01:05:54,635 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 01:05:54,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 01:05:54,639 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 01:05:54,641 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 01:05:54,643 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 01:05:54,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 01:05:54,647 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 01:05:54,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 01:05:54,652 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 01:05:54,652 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 01:05:54,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 01:05:54,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 01:05:54,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 01:05:54,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 01:05:54,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 01:05:54,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 01:05:54,659 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 01:05:54,660 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 01:05:54,661 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 01:05:54,662 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 01:05:54,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 01:05:54,663 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 01:05:54,663 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 01:05:54,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 01:05:54,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 01:05:54,667 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 01:05:54,706 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 01:05:54,708 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 01:05:54,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 01:05:54,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 01:05:54,712 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 01:05:54,712 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 01:05:54,713 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 01:05:54,713 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 01:05:54,713 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 01:05:54,713 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 01:05:54,715 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 01:05:54,715 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 01:05:54,715 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 01:05:54,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 01:05:54,716 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 01:05:54,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 01:05:54,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 01:05:54,716 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 01:05:54,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 01:05:54,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 01:05:54,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 01:05:54,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 01:05:54,717 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 01:05:54,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 01:05:54,718 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 01:05:54,718 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 01:05:54,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 01:05:54,720 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 01:05:54,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 01:05:54,721 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 01:05:54,721 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 01:05:54,721 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 01:05:54,722 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 01:05:54,722 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_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2dd43f49bf0c50f8e266b43f103f07ac5fa1d3b0 [2021-10-13 01:05:55,002 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 01:05:55,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 01:05:55,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 01:05:55,029 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 01:05:55,031 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 01:05:55,031 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2021-10-13 01:05:55,132 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/data/56f66b99e/94ec4e1dd657405d8961477d7afd0ef6/FLAG82889a1d5 [2021-10-13 01:05:55,705 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 01:05:55,706 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c [2021-10-13 01:05:55,717 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/data/56f66b99e/94ec4e1dd657405d8961477d7afd0ef6/FLAG82889a1d5 [2021-10-13 01:05:55,999 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/data/56f66b99e/94ec4e1dd657405d8961477d7afd0ef6 [2021-10-13 01:05:56,002 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 01:05:56,004 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 01:05:56,007 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:56,007 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 01:05:56,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 01:05:56,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,013 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da6bab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56, skipping insertion in model container [2021-10-13 01:05:56,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,020 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 01:05:56,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 01:05:56,483 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_3543b190-d03a-46cd-8485-0aaae28df9b7/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c[17001,17014] [2021-10-13 01:05:56,485 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:56,505 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 01:05:56,632 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_3543b190-d03a-46cd-8485-0aaae28df9b7/sv-benchmarks/c/product-lines/minepump_spec5_product15.cil.c[17001,17014] [2021-10-13 01:05:56,639 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 01:05:56,658 INFO L208 MainTranslator]: Completed translation [2021-10-13 01:05:56,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56 WrapperNode [2021-10-13 01:05:56,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 01:05:56,661 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:56,661 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 01:05:56,661 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 01:05:56,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,709 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 01:05:56,792 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 01:05:56,792 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 01:05:56,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 01:05:56,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,802 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,808 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,818 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,833 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 01:05:56,834 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 01:05:56,834 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 01:05:56,835 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 01:05:56,836 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (1/1) ... [2021-10-13 01:05:56,844 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 01:05:56,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 01:05:56,890 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 01:05:56,903 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 01:05:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 01:05:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 01:05:56,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 01:05:56,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 01:05:57,879 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 01:05:57,880 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-10-13 01:05:57,882 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:57 BoogieIcfgContainer [2021-10-13 01:05:57,882 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 01:05:57,884 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 01:05:57,884 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 01:05:57,888 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 01:05:57,889 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:05:57,889 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 01:05:56" (1/3) ... [2021-10-13 01:05:57,891 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2383e6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:05:57, skipping insertion in model container [2021-10-13 01:05:57,891 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:05:57,891 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:05:56" (2/3) ... [2021-10-13 01:05:57,892 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2383e6c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 01:05:57, skipping insertion in model container [2021-10-13 01:05:57,892 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 01:05:57,892 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:57" (3/3) ... [2021-10-13 01:05:57,894 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product15.cil.c [2021-10-13 01:05:57,942 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 01:05:57,943 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 01:05:57,943 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 01:05:57,943 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 01:05:57,943 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 01:05:57,944 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 01:05:57,944 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 01:05:57,944 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 01:05:57,963 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:57,989 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 01:05:57,990 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:05:57,990 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:05:57,998 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:57,998 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:57,998 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 01:05:57,999 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:58,005 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-13 01:05:58,006 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:05:58,006 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:05:58,007 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:58,007 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:58,013 INFO L791 eck$LassoCheckResult]: Stem: 58#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 49#L-1true havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 6#L780true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 77#L788true main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 61#L134true assume 0 != main_~tmp~0; 26#L105true ~switchedOnBeforeTS~0 := 0; 9#L889true havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 18#L910-1true [2021-10-13 01:05:58,014 INFO L793 eck$LassoCheckResult]: Loop: 18#L910-1true assume !false; 32#L702true assume test_~splverifierCounter~0 < 4; 12#L703true test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 50#L711true assume !(0 != test_~tmp~6); 51#L711-1true test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 22#L721true assume !(0 != test_~tmp___0~0); 62#L721-1true test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 36#L731true assume 0 != test_~tmp___2~0; 44#L737-1true havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 30#L635true __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 52#L899true assume !(0 != ~pumpRunning~0); 68#L533true assume !(0 != ~systemActive~0); 35#L540true havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 57#L869true __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 21#L910true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 18#L910-1true [2021-10-13 01:05:58,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:58,021 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-13 01:05:58,031 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:58,031 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [689632949] [2021-10-13 01:05:58,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:58,033 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:58,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:58,297 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:05:58,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:58,521 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:58,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:58,533 INFO L82 PathProgramCache]: Analyzing trace with hash -242168939, now seen corresponding path program 1 times [2021-10-13 01:05:58,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:58,535 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321678099] [2021-10-13 01:05:58,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:58,535 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:58,554 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:05:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:58,576 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:58,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:58,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1691856271, now seen corresponding path program 1 times [2021-10-13 01:05:58,586 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:58,586 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213733315] [2021-10-13 01:05:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:58,587 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:05:58,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:05:58,752 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:05:58,752 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213733315] [2021-10-13 01:05:58,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213733315] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:05:58,753 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:05:58,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 01:05:58,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736968046] [2021-10-13 01:05:59,001 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:05:59,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 01:05:59,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 01:05:59,020 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:59,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:05:59,344 INFO L93 Difference]: Finished difference Result 205 states and 280 transitions. [2021-10-13 01:05:59,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:05:59,347 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 205 states and 280 transitions. [2021-10-13 01:05:59,364 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 131 [2021-10-13 01:05:59,379 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 205 states to 184 states and 259 transitions. [2021-10-13 01:05:59,380 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 184 [2021-10-13 01:05:59,383 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 184 [2021-10-13 01:05:59,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 184 states and 259 transitions. [2021-10-13 01:05:59,387 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:05:59,387 INFO L681 BuchiCegarLoop]: Abstraction has 184 states and 259 transitions. [2021-10-13 01:05:59,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states and 259 transitions. [2021-10-13 01:05:59,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 119. [2021-10-13 01:05:59,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 119 states have (on average 1.403361344537815) internal successors, (167), 118 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:59,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 167 transitions. [2021-10-13 01:05:59,423 INFO L704 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2021-10-13 01:05:59,424 INFO L587 BuchiCegarLoop]: Abstraction has 119 states and 167 transitions. [2021-10-13 01:05:59,424 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 01:05:59,424 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 119 states and 167 transitions. [2021-10-13 01:05:59,427 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 84 [2021-10-13 01:05:59,427 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:05:59,427 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:05:59,428 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:59,428 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:05:59,428 INFO L791 eck$LassoCheckResult]: Stem: 363#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 362#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 304#L780 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 305#L788 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 365#L134 assume 0 != main_~tmp~0; 339#L105 ~switchedOnBeforeTS~0 := 0; 309#L889 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 310#L910-1 [2021-10-13 01:05:59,429 INFO L793 eck$LassoCheckResult]: Loop: 310#L910-1 assume !false; 323#L702 assume test_~splverifierCounter~0 < 4; 313#L703 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 314#L711 assume !(0 != test_~tmp~6); 320#L711-1 test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 330#L721 assume !(0 != test_~tmp___0~0); 332#L721-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 352#L731 assume 0 != test_~tmp___2~0; 350#L737-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 345#L635 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 346#L899 assume !(0 != ~pumpRunning~0); 325#L533 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 340#L565 assume !(0 != ~pumpRunning~0); 341#L540 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 351#L869 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 328#L910 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~7); 310#L910-1 [2021-10-13 01:05:59,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:59,431 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-13 01:05:59,431 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:59,431 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15082403] [2021-10-13 01:05:59,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:59,431 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:59,483 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:05:59,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:59,562 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:59,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:59,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1062169027, now seen corresponding path program 1 times [2021-10-13 01:05:59,563 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:59,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368748504] [2021-10-13 01:05:59,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:59,564 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:59,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:59,569 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:05:59,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:05:59,578 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:05:59,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:05:59,578 INFO L82 PathProgramCache]: Analyzing trace with hash 887408393, now seen corresponding path program 1 times [2021-10-13 01:05:59,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:05:59,579 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1519494817] [2021-10-13 01:05:59,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:05:59,580 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:05:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 01:05:59,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 01:05:59,660 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 01:05:59,661 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1519494817] [2021-10-13 01:05:59,662 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1519494817] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 01:05:59,662 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 01:05:59,663 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 01:05:59,663 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254815585] [2021-10-13 01:05:59,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 01:05:59,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 01:05:59,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 01:05:59,826 INFO L87 Difference]: Start difference. First operand 119 states and 167 transitions. cyclomatic complexity: 51 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:05:59,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 01:05:59,978 INFO L93 Difference]: Finished difference Result 316 states and 435 transitions. [2021-10-13 01:05:59,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 01:05:59,979 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 316 states and 435 transitions. [2021-10-13 01:05:59,989 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2021-10-13 01:05:59,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 316 states to 316 states and 435 transitions. [2021-10-13 01:05:59,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 316 [2021-10-13 01:05:59,996 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 316 [2021-10-13 01:05:59,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 316 states and 435 transitions. [2021-10-13 01:06:00,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 01:06:00,004 INFO L681 BuchiCegarLoop]: Abstraction has 316 states and 435 transitions. [2021-10-13 01:06:00,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states and 435 transitions. [2021-10-13 01:06:00,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 231. [2021-10-13 01:06:00,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 231 states, 231 states have (on average 1.354978354978355) internal successors, (313), 230 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 01:06:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 313 transitions. [2021-10-13 01:06:00,067 INFO L704 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2021-10-13 01:06:00,068 INFO L587 BuchiCegarLoop]: Abstraction has 231 states and 313 transitions. [2021-10-13 01:06:00,068 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 01:06:00,068 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 231 states and 313 transitions. [2021-10-13 01:06:00,070 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 162 [2021-10-13 01:06:00,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 01:06:00,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 01:06:00,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:00,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 01:06:00,074 INFO L791 eck$LassoCheckResult]: Stem: 825#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~string26.base, #t~string26.offset := #Ultimate.allocOnStack(30);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(9);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(21);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(25);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(110, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string51.base, #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(102, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 3 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(80, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(117, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(109, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(112, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(110, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 2 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(102, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 3 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(32, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string61.base, #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 1 + #t~string61.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(13);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(77, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(101, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(116, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(104, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string72.base, #t~string72.offset, 1);call write~init~int(82, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(73, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(84, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 4 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(75, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~switchedOnBeforeTS~0 := 0; 818#L-1 havoc main_#res;havoc main_#t~ret7, main_~retValue_acc~0, main_~tmp~0;havoc main_~retValue_acc~0;havoc main_~tmp~0; 755#L780 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 756#L788 main_#t~ret7 := valid_product_#res;main_~tmp~0 := main_#t~ret7;havoc main_#t~ret7; 828#L134 assume 0 != main_~tmp~0; 794#L105 ~switchedOnBeforeTS~0 := 0; 761#L889 havoc test_#t~nondet62, test_#t~nondet63, test_#t~nondet64, test_#t~nondet65, test_~splverifierCounter~0, test_~tmp~6, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~6;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 762#L910-1 [2021-10-13 01:06:00,074 INFO L793 eck$LassoCheckResult]: Loop: 762#L910-1 assume !false; 777#L702 assume test_~splverifierCounter~0 < 4; 800#L703 test_~tmp~6 := test_#t~nondet62;havoc test_#t~nondet62; 914#L711 assume !(0 != test_~tmp~6); 915#L711-1 test_~tmp___0~0 := test_#t~nondet63;havoc test_#t~nondet63; 917#L721 assume !(0 != test_~tmp___0~0); 913#L721-1 test_~tmp___2~0 := test_#t~nondet64;havoc test_#t~nondet64; 905#L731 assume 0 != test_~tmp___2~0; 903#L737-1 havoc __utac_acc__Specification5_spec__2_#t~ret77;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 902#L635 __utac_acc__Specification5_spec__2_#t~ret77 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret77;havoc __utac_acc__Specification5_spec__2_#t~ret77; 898#L899 assume !(0 != ~pumpRunning~0); 833#L533 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret43, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 791#L565 assume !(0 != ~pumpRunning~0); 792#L540 havoc __utac_acc__Specification5_spec__3_#t~ret78, __utac_acc__Specification5_spec__3_#t~ret79, __utac_acc__Specification5_spec__3_~tmp~7, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~7;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 801#L869 __utac_acc__Specification5_spec__3_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~7 := __utac_acc__Specification5_spec__3_#t~ret78;havoc __utac_acc__Specification5_spec__3_#t~ret78; 778#L910 assume 2 != __utac_acc__Specification5_spec__3_~tmp~7;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~5;havoc isPumpRunning_~retValue_acc~5;isPumpRunning_~retValue_acc~5 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~5; 779#L635-1 __utac_acc__Specification5_spec__3_#t~ret79 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret79;havoc __utac_acc__Specification5_spec__3_#t~ret79; 769#L914 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 762#L910-1 [2021-10-13 01:06:00,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:00,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-13 01:06:00,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:00,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283582271] [2021-10-13 01:06:00,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:00,076 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:00,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,152 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:00,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,224 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:00,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:00,225 INFO L82 PathProgramCache]: Analyzing trace with hash -1457795586, now seen corresponding path program 1 times [2021-10-13 01:06:00,225 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:00,225 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069152511] [2021-10-13 01:06:00,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:00,226 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:00,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,231 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,238 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:06:00,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 01:06:00,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1899040316, now seen corresponding path program 1 times [2021-10-13 01:06:00,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 01:06:00,240 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804588169] [2021-10-13 01:06:00,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 01:06:00,240 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 01:06:00,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,278 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 01:06:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 01:06:00,328 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 01:07:07,689 WARN L207 SmtUtils]: Spent 1.12 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-13 01:08:13,594 WARN L207 SmtUtils]: Spent 29.95 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-13 01:08:13,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 01:08:13 BoogieIcfgContainer [2021-10-13 01:08:13,744 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 01:08:13,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 01:08:13,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 01:08:13,749 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 01:08:13,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:05:57" (3/4) ... [2021-10-13 01:08:13,752 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 01:08:13,859 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 01:08:13,860 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 01:08:13,861 INFO L168 Benchmark]: Toolchain (without parser) took 137856.67 ms. Allocated memory was 100.7 MB in the beginning and 155.2 MB in the end (delta: 54.5 MB). Free memory was 58.3 MB in the beginning and 105.0 MB in the end (delta: -46.7 MB). Peak memory consumption was 6.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,862 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 100.7 MB. Free memory is still 75.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 01:08:13,862 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.34 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 68.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,863 INFO L168 Benchmark]: Boogie Procedure Inliner took 130.34 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 64.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,864 INFO L168 Benchmark]: Boogie Preprocessor took 41.83 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 62.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,865 INFO L168 Benchmark]: RCFGBuilder took 1048.52 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 62.6 MB in the beginning and 87.2 MB in the end (delta: -24.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,865 INFO L168 Benchmark]: BuchiAutomizer took 135859.97 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 86.5 MB in the beginning and 107.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,866 INFO L168 Benchmark]: Witness Printer took 115.58 ms. Allocated memory is still 155.2 MB. Free memory was 107.1 MB in the beginning and 105.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 01:08:13,870 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 100.7 MB. Free memory is still 75.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 652.34 ms. Allocated memory is still 100.7 MB. Free memory was 58.1 MB in the beginning and 68.0 MB in the end (delta: -9.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 130.34 ms. Allocated memory is still 100.7 MB. Free memory was 68.0 MB in the beginning and 64.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 41.83 ms. Allocated memory is still 100.7 MB. Free memory was 64.7 MB in the beginning and 62.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1048.52 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 62.6 MB in the beginning and 87.2 MB in the end (delta: -24.6 MB). Peak memory consumption was 32.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135859.97 ms. Allocated memory was 121.6 MB in the beginning and 155.2 MB in the end (delta: 33.6 MB). Free memory was 86.5 MB in the beginning and 107.1 MB in the end (delta: -20.6 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.1 GB. * Witness Printer took 115.58 ms. Allocated memory is still 155.2 MB. Free memory was 107.1 MB in the beginning and 105.0 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 231 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.7s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 135.0s. 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 85.0ms AutomataMinimizationTime, 2 MinimizatonAttempts, 150 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 231 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 256 SDtfs, 771 SDslu, 796 SDs, 0 SdLazy, 105 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 277.0ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 701]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18589} State at position 1 is {NULL=0, NULL=0, NULL=18614, retValue_acc=0, NULL=18589, NULL=0, NULL=0, NULL=18600, NULL=18616, methaneLevelCritical=0, NULL=18597, tmp=1, NULL=0, tmp=0, NULL=18615, tmp___1=0, NULL=18603, NULL=0, NULL=0, NULL=18613, NULL=18601, NULL=18610, cleanupTimeShifts=4, switchedOnBeforeTS=0, NULL=18599, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d6e483c=0, \result=0, NULL=18608, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3653c2bb=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=18596, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=18605, \result=1, head=0, pumpRunning=0, tmp=1, NULL=18612, NULL=18609, \result=0, tmp___0=0, NULL=18591, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cee4a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1beeeab3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3a1ecc13=0, NULL=0, NULL=18590, NULL=18607, retValue_acc=1, NULL=0, NULL=0, retValue_acc=1, NULL=18604, NULL=0, tmp___2=70, NULL=18602, NULL=18611, splverifierCounter=0, NULL=0, NULL=0, NULL=18595, NULL=18617, NULL=18618, NULL=18598, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ef56a70=0, head=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26741acc=70, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5a69e2e1=0, NULL=18592, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@48ed5155=0, NULL=0, NULL=0, NULL=0, NULL=18594, NULL=18606, retValue_acc=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L42] int cleanupTimeShifts = 4; [L317] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L521] int pumpRunning = 0; [L522] int systemActive = 1; [L794] int waterLevel = 1; [L795] int methaneLevelCritical = 0; [L883] int switchedOnBeforeTS ; [L125] int retValue_acc ; [L126] int tmp ; [L784] int retValue_acc ; [L787] retValue_acc = 1 [L788] return (retValue_acc); [L132] tmp = valid_product() [L134] COND TRUE \read(tmp) [L888] switchedOnBeforeTS = 0 [L692] int splverifierCounter ; [L693] int tmp ; [L694] int tmp___0 ; [L695] int tmp___1 ; [L696] int tmp___2 ; [L699] splverifierCounter = 0 Loop: [L701] COND TRUE 1 [L703] COND TRUE splverifierCounter < 4 [L709] tmp = __VERIFIER_nondet_int() [L711] COND FALSE !(\read(tmp)) [L719] tmp___0 = __VERIFIER_nondet_int() [L721] COND FALSE !(\read(tmp___0)) [L729] tmp___2 = __VERIFIER_nondet_int() [L731] COND TRUE \read(tmp___2) [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L897] switchedOnBeforeTS = isPumpRunning() [L533] COND FALSE !(\read(pumpRunning)) [L540] COND TRUE \read(systemActive) [L562] int tmp ; [L565] COND FALSE !(\read(pumpRunning)) [L903] int tmp ; [L904] int tmp___0 ; [L865] int retValue_acc ; [L868] retValue_acc = waterLevel [L869] return (retValue_acc); [L908] tmp = getWaterLevel() [L910] COND TRUE tmp != 2 [L631] int retValue_acc ; [L634] retValue_acc = pumpRunning [L635] return (retValue_acc); [L912] tmp___0 = isPumpRunning() [L914] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 01:08:13,944 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3543b190-d03a-46cd-8485-0aaae28df9b7/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...