./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be --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 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-e943c26 [2021-10-21 19:36:52,546 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:36:52,549 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:36:52,606 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:36:52,607 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:36:52,611 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:36:52,614 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:36:52,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:36:52,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:36:52,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:36:52,628 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:36:52,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:36:52,631 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:36:52,634 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:36:52,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:36:52,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:36:52,643 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:36:52,644 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:36:52,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:36:52,655 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:36:52,656 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:36:52,658 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:36:52,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:36:52,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:36:52,673 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:36:52,673 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:36:52,674 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:36:52,676 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:36:52,677 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:36:52,679 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:36:52,679 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:36:52,681 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:36:52,683 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:36:52,684 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:36:52,686 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:36:52,687 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:36:52,688 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:36:52,688 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:36:52,688 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:36:52,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:36:52,690 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:36:52,691 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:36:52,739 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:36:52,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:36:52,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:36:52,741 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:36:52,742 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:36:52,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:36:52,743 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:36:52,743 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:36:52,744 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:36:52,744 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:36:52,744 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:36:52,745 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:36:52,745 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:36:52,745 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:36:52,746 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:36:52,746 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:36:52,746 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:36:52,746 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:36:52,747 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:36:52,747 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:36:52,747 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:36:52,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:36:52,748 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:36:52,748 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:36:52,749 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:36:52,749 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:36:52,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:36:52,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:36:52,750 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:36:52,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:36:52,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:36:52,751 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:36:52,752 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:36:52,753 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_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 62c2cf132c1af8470eae7f9b6621445fd5b91c1643db1f71bf7213022a4dec0a [2021-10-21 19:36:52,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:36:53,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:36:53,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:36:53,015 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:36:53,016 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:36:53,017 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2021-10-21 19:36:53,109 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/data/b0a28dafa/ebcd1706c8b7443280d05adae1266076/FLAG3562976cb [2021-10-21 19:36:53,762 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:36:53,762 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c [2021-10-21 19:36:53,782 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/data/b0a28dafa/ebcd1706c8b7443280d05adae1266076/FLAG3562976cb [2021-10-21 19:36:53,963 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/data/b0a28dafa/ebcd1706c8b7443280d05adae1266076 [2021-10-21 19:36:53,967 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:36:53,969 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:36:53,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:53,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:36:53,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:36:53,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:53" (1/1) ... [2021-10-21 19:36:53,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3556dce4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:53, skipping insertion in model container [2021-10-21 19:36:53,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:36:53" (1/1) ... [2021-10-21 19:36:53,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:36:54,047 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:36:54,261 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_0d04d002-df40-4bb4-9708-448d5c3c359d/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c[5724,5737] [2021-10-21 19:36:54,342 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:54,352 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:36:54,379 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_0d04d002-df40-4bb4-9708-448d5c3c359d/sv-benchmarks/c/product-lines/minepump_spec5_productSimulator.cil.c[5724,5737] [2021-10-21 19:36:54,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:36:54,490 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:36:54,491 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54 WrapperNode [2021-10-21 19:36:54,491 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:36:54,492 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:54,492 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:36:54,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:36:54,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,518 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,621 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:36:54,622 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:36:54,622 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:36:54,622 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:36:54,631 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,719 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,742 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:36:54,761 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:36:54,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:36:54,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:36:54,763 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (1/1) ... [2021-10-21 19:36:54,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:36:54,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:36:54,824 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:36:54,841 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:36:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:36:54,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:36:54,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:36:54,879 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:36:56,462 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:36:56,462 INFO L299 CfgBuilder]: Removed 914 assume(true) statements. [2021-10-21 19:36:56,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:56 BoogieIcfgContainer [2021-10-21 19:36:56,466 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:36:56,469 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:36:56,470 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:36:56,474 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:36:56,475 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:56,475 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:36:53" (1/3) ... [2021-10-21 19:36:56,477 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ad8ae1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:56, skipping insertion in model container [2021-10-21 19:36:56,477 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:56,477 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:36:54" (2/3) ... [2021-10-21 19:36:56,478 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5ad8ae1f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:36:56, skipping insertion in model container [2021-10-21 19:36:56,478 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:36:56,478 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:56" (3/3) ... [2021-10-21 19:36:56,479 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_productSimulator.cil.c [2021-10-21 19:36:56,536 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:36:56,536 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:36:56,536 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:36:56,536 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:36:56,537 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:36:56,537 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:36:56,537 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:36:56,537 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:36:56,579 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 476 states, 475 states have (on average 1.5642105263157895) internal successors, (743), 475 states have internal predecessors, (743), 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) [2021-10-21 19:36:56,639 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-21 19:36:56,644 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:56,644 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:56,652 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:56,652 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:56,652 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:36:56,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 476 states, 475 states have (on average 1.5642105263157895) internal successors, (743), 475 states have internal predecessors, (743), 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) [2021-10-21 19:36:56,674 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 311 [2021-10-21 19:36:56,675 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:56,675 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:56,677 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:56,677 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:56,681 INFO L791 eck$LassoCheckResult]: Stem: 464#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(80, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(117, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(109, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(112, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(110, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 2 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 3 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(32, #t~string82.base, 1 + #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 2 + #t~string82.offset, 1);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string84.base, #t~string84.offset, 1);call write~init~int(0, #t~string84.base, 1 + #t~string84.offset, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 392#L-1true havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 166#L305true havoc select_features_#t~ret19, select_features_#t~ret20, select_features_#t~ret21, select_features_#t~ret22, select_features_#t~ret23, select_features_#t~ret24;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 199#L280true select_features_#t~ret19 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret19;havoc select_features_#t~ret19;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 29#L280-1true select_features_#t~ret20 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret20;havoc select_features_#t~ret20;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 85#L280-2true select_features_#t~ret21 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret21;havoc select_features_#t~ret21;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 167#L280-3true select_features_#t~ret22 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret22;havoc select_features_#t~ret22;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 261#L280-4true select_features_#t~ret23 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret23;havoc select_features_#t~ret23;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 369#L280-5true select_features_#t~ret24 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret24;havoc select_features_#t~ret24; 25#L297true havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~6; 19#L313true main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 420#L259true assume 0 != main_~tmp~0; 181#L230true ~switchedOnBeforeTS~0 := 0; 477#L1117true havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 378#L1138-1true [2021-10-21 19:36:56,681 INFO L793 eck$LassoCheckResult]: Loop: 378#L1138-1true assume !false; 457#L706true assume test_~splverifierCounter~0 < 4; 428#L707true test_~tmp~4 := test_#t~nondet60;havoc test_#t~nondet60; 246#L715true assume !(0 != test_~tmp~4); 195#L715-1true test_~tmp___0~0 := test_#t~nondet61;havoc test_#t~nondet61; 7#L725true assume !(0 != test_~tmp___0~0); 182#L725-1true test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 472#L735true assume 0 != test_~tmp___2~0; 146#L736true assume !(0 != ~__SELECTED_FEATURE_startCommand~0); 265#L747-1true havoc __utac_acc__Specification5_spec__2_#t~ret87;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 123#L1009true __utac_acc__Specification5_spec__2_#t~ret87 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret87;havoc __utac_acc__Specification5_spec__2_#t~ret87; 86#L1127true assume !(0 != ~pumpRunning~0); 227#L787true assume !(0 != ~systemActive~0); 206#L794true havoc __utac_acc__Specification5_spec__3_#t~ret88, __utac_acc__Specification5_spec__3_#t~ret89, __utac_acc__Specification5_spec__3_~tmp~11, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~11;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 263#L141true __utac_acc__Specification5_spec__3_#t~ret88 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~11 := __utac_acc__Specification5_spec__3_#t~ret88;havoc __utac_acc__Specification5_spec__3_#t~ret88; 116#L1138true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~11); 378#L1138-1true [2021-10-21 19:36:56,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:56,690 INFO L82 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 1 times [2021-10-21 19:36:56,698 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:56,699 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938543228] [2021-10-21 19:36:56,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:56,700 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:57,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:57,043 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:57,247 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:57,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:57,258 INFO L82 PathProgramCache]: Analyzing trace with hash 832980286, now seen corresponding path program 1 times [2021-10-21 19:36:57,262 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:57,262 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1721626454] [2021-10-21 19:36:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:57,263 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:57,272 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:57,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:57,286 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:57,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:57,288 INFO L82 PathProgramCache]: Analyzing trace with hash 224402797, now seen corresponding path program 1 times [2021-10-21 19:36:57,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:57,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469775925] [2021-10-21 19:36:57,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:57,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:57,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:57,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:57,443 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469775925] [2021-10-21 19:36:57,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469775925] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:57,444 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:57,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-21 19:36:57,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86374946] [2021-10-21 19:36:57,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:57,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-21 19:36:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-10-21 19:36:57,622 INFO L87 Difference]: Start difference. First operand has 476 states, 475 states have (on average 1.5642105263157895) internal successors, (743), 475 states have internal predecessors, (743), 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 7 states, 7 states have (on average 4.285714285714286) internal successors, (30), 6 states have internal predecessors, (30), 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) [2021-10-21 19:36:58,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:58,177 INFO L93 Difference]: Finished difference Result 1460 states and 2253 transitions. [2021-10-21 19:36:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-21 19:36:58,179 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1460 states and 2253 transitions. [2021-10-21 19:36:58,204 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 966 [2021-10-21 19:36:58,228 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1460 states to 1432 states and 2225 transitions. [2021-10-21 19:36:58,229 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1432 [2021-10-21 19:36:58,233 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1432 [2021-10-21 19:36:58,235 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1432 states and 2225 transitions. [2021-10-21 19:36:58,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:36:58,246 INFO L681 BuchiCegarLoop]: Abstraction has 1432 states and 2225 transitions. [2021-10-21 19:36:58,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1432 states and 2225 transitions. [2021-10-21 19:36:58,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1432 to 520. [2021-10-21 19:36:58,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 520 states have (on average 1.5384615384615385) internal successors, (800), 519 states have internal predecessors, (800), 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) [2021-10-21 19:36:58,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 800 transitions. [2021-10-21 19:36:58,336 INFO L704 BuchiCegarLoop]: Abstraction has 520 states and 800 transitions. [2021-10-21 19:36:58,337 INFO L587 BuchiCegarLoop]: Abstraction has 520 states and 800 transitions. [2021-10-21 19:36:58,337 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:36:58,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 520 states and 800 transitions. [2021-10-21 19:36:58,341 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 348 [2021-10-21 19:36:58,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:58,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:58,343 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:58,343 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] [2021-10-21 19:36:58,343 INFO L791 eck$LassoCheckResult]: Stem: 2426#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(80, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(117, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(109, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(112, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(110, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 2 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 3 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(32, #t~string82.base, 1 + #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 2 + #t~string82.offset, 1);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string84.base, #t~string84.offset, 1);call write~init~int(0, #t~string84.base, 1 + #t~string84.offset, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 2409#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 2221#L305 havoc select_features_#t~ret19, select_features_#t~ret20, select_features_#t~ret21, select_features_#t~ret22, select_features_#t~ret23, select_features_#t~ret24;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2222#L280 select_features_#t~ret19 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret19;havoc select_features_#t~ret19;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2010#L280-1 select_features_#t~ret20 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret20;havoc select_features_#t~ret20;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2011#L280-2 select_features_#t~ret21 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret21;havoc select_features_#t~ret21;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2106#L280-3 select_features_#t~ret22 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret22;havoc select_features_#t~ret22;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2223#L280-4 select_features_#t~ret23 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret23;havoc select_features_#t~ret23;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 2313#L280-5 select_features_#t~ret24 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret24;havoc select_features_#t~ret24; 2003#L297 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~6; 1992#L313 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 1993#L259 assume 0 != main_~tmp~0; 2238#L230 ~switchedOnBeforeTS~0 := 0; 2239#L1117 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2065#L1138-1 [2021-10-21 19:36:58,344 INFO L793 eck$LassoCheckResult]: Loop: 2065#L1138-1 assume !false; 2406#L706 assume test_~splverifierCounter~0 < 4; 2419#L707 test_~tmp~4 := test_#t~nondet60;havoc test_#t~nondet60; 2297#L715 assume !(0 != test_~tmp~4); 2254#L715-1 test_~tmp___0~0 := test_#t~nondet61;havoc test_#t~nondet61; 1966#L725 assume !(0 != test_~tmp___0~0); 1967#L725-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 2240#L735 assume 0 != test_~tmp___2~0; 2192#L736 assume !(0 != ~__SELECTED_FEATURE_startCommand~0); 2017#L747-1 havoc __utac_acc__Specification5_spec__2_#t~ret87;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 2159#L1009 __utac_acc__Specification5_spec__2_#t~ret87 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret87;havoc __utac_acc__Specification5_spec__2_#t~ret87; 2107#L1127 assume !(0 != ~pumpRunning~0); 2109#L787 assume 0 != ~systemActive~0; 2277#L930 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 2000#L887-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 2001#L844-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 1959#L794 havoc __utac_acc__Specification5_spec__3_#t~ret88, __utac_acc__Specification5_spec__3_#t~ret89, __utac_acc__Specification5_spec__3_~tmp~11, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~11;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 2261#L141 __utac_acc__Specification5_spec__3_#t~ret88 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~11 := __utac_acc__Specification5_spec__3_#t~ret88;havoc __utac_acc__Specification5_spec__3_#t~ret88; 2150#L1138 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~11); 2065#L1138-1 [2021-10-21 19:36:58,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:58,345 INFO L82 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 2 times [2021-10-21 19:36:58,345 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:58,345 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436642558] [2021-10-21 19:36:58,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:58,346 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:58,393 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:58,456 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:58,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:58,457 INFO L82 PathProgramCache]: Analyzing trace with hash -958442043, now seen corresponding path program 1 times [2021-10-21 19:36:58,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:58,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45633061] [2021-10-21 19:36:58,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:58,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:58,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:58,463 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:58,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:58,470 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:58,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:58,471 INFO L82 PathProgramCache]: Analyzing trace with hash -2033460426, now seen corresponding path program 1 times [2021-10-21 19:36:58,471 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:58,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797952323] [2021-10-21 19:36:58,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:58,472 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:58,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:36:58,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:36:58,547 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:36:58,547 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797952323] [2021-10-21 19:36:58,548 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797952323] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:36:58,549 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:36:58,549 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:36:58,549 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805096645] [2021-10-21 19:36:58,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:36:58,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:36:58,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:36:58,731 INFO L87 Difference]: Start difference. First operand 520 states and 800 transitions. cyclomatic complexity: 283 Second operand has 5 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 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) [2021-10-21 19:36:59,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:36:59,225 INFO L93 Difference]: Finished difference Result 1767 states and 2691 transitions. [2021-10-21 19:36:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:36:59,226 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1767 states and 2691 transitions. [2021-10-21 19:36:59,246 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 690 [2021-10-21 19:36:59,264 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1767 states to 1767 states and 2691 transitions. [2021-10-21 19:36:59,264 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1767 [2021-10-21 19:36:59,266 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1767 [2021-10-21 19:36:59,267 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1767 states and 2691 transitions. [2021-10-21 19:36:59,270 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:36:59,270 INFO L681 BuchiCegarLoop]: Abstraction has 1767 states and 2691 transitions. [2021-10-21 19:36:59,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1767 states and 2691 transitions. [2021-10-21 19:36:59,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1767 to 1026. [2021-10-21 19:36:59,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1026 states, 1026 states have (on average 1.5058479532163742) internal successors, (1545), 1025 states have internal predecessors, (1545), 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) [2021-10-21 19:36:59,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1026 states to 1026 states and 1545 transitions. [2021-10-21 19:36:59,311 INFO L704 BuchiCegarLoop]: Abstraction has 1026 states and 1545 transitions. [2021-10-21 19:36:59,311 INFO L587 BuchiCegarLoop]: Abstraction has 1026 states and 1545 transitions. [2021-10-21 19:36:59,311 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:36:59,312 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 1026 states and 1545 transitions. [2021-10-21 19:36:59,319 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 690 [2021-10-21 19:36:59,320 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:36:59,320 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:36:59,321 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:59,321 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:36:59,321 INFO L791 eck$LassoCheckResult]: Stem: 4785#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(38);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(30);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(9);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(21);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(30);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(9);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(21);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(25);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(110, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(102, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 3 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string76.base, #t~string76.offset, 1);call write~init~int(80, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(117, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(109, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(112, #t~string76.base, 4 + #t~string76.offset, 1);call write~init~int(58, #t~string76.base, 5 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 6 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(110, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string80.base, #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 1 + #t~string80.offset, 1);call write~init~int(102, #t~string80.base, 2 + #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 3 + #t~string80.offset, 1);call #t~string82.base, #t~string82.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string82.base, #t~string82.offset, 1);call write~init~int(32, #t~string82.base, 1 + #t~string82.offset, 1);call write~init~int(0, #t~string82.base, 2 + #t~string82.offset, 1);call #t~string84.base, #t~string84.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string84.base, #t~string84.offset, 1);call write~init~int(0, #t~string84.base, 1 + #t~string84.offset, 1);~__SELECTED_FEATURE_base~0 := 0;~__SELECTED_FEATURE_highWaterSensor~0 := 0;~__SELECTED_FEATURE_lowWaterSensor~0 := 0;~__SELECTED_FEATURE_methaneQuery~0 := 0;~__SELECTED_FEATURE_methaneAlarm~0 := 0;~__SELECTED_FEATURE_stopCommand~0 := 0;~__SELECTED_FEATURE_startCommand~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0; 4752#L-1 havoc main_#res;havoc main_#t~ret17, main_~retValue_acc~4, main_~tmp~0;havoc main_~retValue_acc~4;havoc main_~tmp~0;~__GUIDSL_ROOT_PRODUCTION~0 := 1; 4532#L305 havoc select_features_#t~ret19, select_features_#t~ret20, select_features_#t~ret21, select_features_#t~ret22, select_features_#t~ret23, select_features_#t~ret24;~__SELECTED_FEATURE_base~0 := 1;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4533#L280 select_features_#t~ret19 := select_one_#res;~__SELECTED_FEATURE_highWaterSensor~0 := select_features_#t~ret19;havoc select_features_#t~ret19;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4313#L280-1 select_features_#t~ret20 := select_one_#res;~__SELECTED_FEATURE_lowWaterSensor~0 := select_features_#t~ret20;havoc select_features_#t~ret20;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4314#L280-2 select_features_#t~ret21 := select_one_#res;~__SELECTED_FEATURE_methaneQuery~0 := select_features_#t~ret21;havoc select_features_#t~ret21;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4413#L280-3 select_features_#t~ret22 := select_one_#res;~__SELECTED_FEATURE_methaneAlarm~0 := select_features_#t~ret22;havoc select_features_#t~ret22;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4534#L280-4 select_features_#t~ret23 := select_one_#res;~__SELECTED_FEATURE_stopCommand~0 := select_features_#t~ret23;havoc select_features_#t~ret23;havoc select_one_#res;havoc select_one_#t~nondet18, select_one_~retValue_acc~5, select_one_~choice~0;havoc select_one_~retValue_acc~5;select_one_~choice~0 := select_one_#t~nondet18;havoc select_one_#t~nondet18;select_one_~retValue_acc~5 := select_one_~choice~0;select_one_#res := select_one_~retValue_acc~5; 4637#L280-5 select_features_#t~ret24 := select_one_#res;~__SELECTED_FEATURE_startCommand~0 := select_features_#t~ret24;havoc select_features_#t~ret24; 4306#L297 havoc valid_product_#res;havoc valid_product_~retValue_acc~6;havoc valid_product_~retValue_acc~6;valid_product_~retValue_acc~6 := ~__SELECTED_FEATURE_base~0;valid_product_#res := valid_product_~retValue_acc~6; 4295#L313 main_#t~ret17 := valid_product_#res;main_~tmp~0 := main_#t~ret17;havoc main_#t~ret17; 4296#L259 assume 0 != main_~tmp~0; 4549#L230 ~switchedOnBeforeTS~0 := 0; 4550#L1117 havoc test_#t~nondet60, test_#t~nondet61, test_#t~nondet62, test_#t~nondet63, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 4786#L1138-1 [2021-10-21 19:36:59,322 INFO L793 eck$LassoCheckResult]: Loop: 4786#L1138-1 assume !false; 5071#L706 assume test_~splverifierCounter~0 < 4; 5072#L707 test_~tmp~4 := test_#t~nondet60;havoc test_#t~nondet60; 5183#L715 assume !(0 != test_~tmp~4); 5182#L715-1 test_~tmp___0~0 := test_#t~nondet61;havoc test_#t~nondet61; 5181#L725 assume !(0 != test_~tmp___0~0); 5179#L725-1 test_~tmp___2~0 := test_#t~nondet62;havoc test_#t~nondet62; 5178#L735 assume 0 != test_~tmp___2~0; 5175#L736 assume !(0 != ~__SELECTED_FEATURE_startCommand~0); 4982#L747-1 havoc __utac_acc__Specification5_spec__2_#t~ret87;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 5173#L1009 __utac_acc__Specification5_spec__2_#t~ret87 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret87;havoc __utac_acc__Specification5_spec__2_#t~ret87; 5170#L1127 assume !(0 != ~pumpRunning~0); 5168#L787 assume 0 != ~systemActive~0; 4977#L930 assume !(0 != ~__SELECTED_FEATURE_methaneAlarm~0); 4303#L887-2 assume !(0 != ~__SELECTED_FEATURE_lowWaterSensor~0); 4304#L844-8 assume !(0 != ~__SELECTED_FEATURE_highWaterSensor~0); 5103#L794 havoc __utac_acc__Specification5_spec__3_#t~ret88, __utac_acc__Specification5_spec__3_#t~ret89, __utac_acc__Specification5_spec__3_~tmp~11, __utac_acc__Specification5_spec__3_~tmp___0~3;havoc __utac_acc__Specification5_spec__3_~tmp~11;havoc __utac_acc__Specification5_spec__3_~tmp___0~3;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 5102#L141 __utac_acc__Specification5_spec__3_#t~ret88 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~11 := __utac_acc__Specification5_spec__3_#t~ret88;havoc __utac_acc__Specification5_spec__3_#t~ret88; 5101#L1138 assume 2 != __utac_acc__Specification5_spec__3_~tmp~11;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~11;havoc isPumpRunning_~retValue_acc~11;isPumpRunning_~retValue_acc~11 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~11; 5100#L1009-1 __utac_acc__Specification5_spec__3_#t~ret89 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~3 := __utac_acc__Specification5_spec__3_#t~ret89;havoc __utac_acc__Specification5_spec__3_#t~ret89; 5099#L1142 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3); 4786#L1138-1 [2021-10-21 19:36:59,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:59,322 INFO L82 PathProgramCache]: Analyzing trace with hash 527832624, now seen corresponding path program 3 times [2021-10-21 19:36:59,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:59,323 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844487237] [2021-10-21 19:36:59,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:59,323 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:59,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,371 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:59,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,422 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:59,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:59,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1939795712, now seen corresponding path program 1 times [2021-10-21 19:36:59,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:59,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995179820] [2021-10-21 19:36:59,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:59,424 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,429 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,436 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:36:59,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:36:59,437 INFO L82 PathProgramCache]: Analyzing trace with hash 54656561, now seen corresponding path program 1 times [2021-10-21 19:36:59,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:36:59,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707579787] [2021-10-21 19:36:59,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:36:59,438 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:36:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,500 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:36:59,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:36:59,584 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:38:13,145 WARN L207 SmtUtils]: Spent 1.22 m on a formula simplification. DAG size of input: 557 DAG size of output: 499 [2021-10-21 19:39:16,597 WARN L207 SmtUtils]: Spent 31.59 s on a formula simplification that was a NOOP. DAG size: 446 [2021-10-21 19:39:16,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:39:16 BoogieIcfgContainer [2021-10-21 19:39:16,742 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:39:16,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:39:16,743 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:39:16,743 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:39:16,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:36:56" (3/4) ... [2021-10-21 19:39:16,746 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:39:16,803 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:39:16,804 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:39:16,805 INFO L168 Benchmark]: Toolchain (without parser) took 142835.15 ms. Allocated memory was 111.1 MB in the beginning and 186.6 MB in the end (delta: 75.5 MB). Free memory was 76.0 MB in the beginning and 86.4 MB in the end (delta: -10.4 MB). Peak memory consumption was 64.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,805 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:39:16,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.84 ms. Allocated memory is still 111.1 MB. Free memory was 75.7 MB in the beginning and 77.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,806 INFO L168 Benchmark]: Boogie Procedure Inliner took 129.62 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 66.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,806 INFO L168 Benchmark]: Boogie Preprocessor took 138.65 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 59.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,807 INFO L168 Benchmark]: RCFGBuilder took 1704.89 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 59.0 MB in the beginning and 95.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,807 INFO L168 Benchmark]: BuchiAutomizer took 140272.69 ms. Allocated memory was 140.5 MB in the beginning and 186.6 MB in the end (delta: 46.1 MB). Free memory was 95.2 MB in the beginning and 89.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 105.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,808 INFO L168 Benchmark]: Witness Printer took 61.45 ms. Allocated memory is still 186.6 MB. Free memory was 89.6 MB in the beginning and 86.4 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:39:16,810 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 111.1 MB. Free memory is still 65.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.84 ms. Allocated memory is still 111.1 MB. Free memory was 75.7 MB in the beginning and 77.1 MB in the end (delta: -1.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 129.62 ms. Allocated memory is still 111.1 MB. Free memory was 77.1 MB in the beginning and 66.2 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 138.65 ms. Allocated memory is still 111.1 MB. Free memory was 66.2 MB in the beginning and 59.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1704.89 ms. Allocated memory was 111.1 MB in the beginning and 140.5 MB in the end (delta: 29.4 MB). Free memory was 59.0 MB in the beginning and 95.2 MB in the end (delta: -36.2 MB). Peak memory consumption was 36.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 140272.69 ms. Allocated memory was 140.5 MB in the beginning and 186.6 MB in the end (delta: 46.1 MB). Free memory was 95.2 MB in the beginning and 89.6 MB in the end (delta: 5.6 MB). Peak memory consumption was 105.2 MB. Max. memory is 16.1 GB. * Witness Printer took 61.45 ms. Allocated memory is still 186.6 MB. Free memory was 89.6 MB in the beginning and 86.4 MB in the end (delta: 3.1 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 7 locations. The remainder module has 1026 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 140.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 138.7s. Construction of modules took 0.6s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 117.2ms AutomataMinimizationTime, 2 MinimizatonAttempts, 1653 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 1026 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 2084 SDtfs, 7638 SDslu, 7998 SDs, 0 SdLazy, 371 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 636.6ms 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: 705]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=10616} State at position 1 is {NULL=0, NULL=10618, NULL=40730, NULL=0, NULL=40719, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1dd21e6a=0, NULL=10616, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fb16a0f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52d27213=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69e1e811=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33da4943=0, methaneLevelCritical=0, NULL=40735, NULL=0, tmp=0, tmp___1=0, NULL=0, cleanupTimeShifts=4, retValue_acc=0, NULL=40720, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19dbd8bb=0, NULL=40724, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31757c1d=0, waterLevel=1, __SELECTED_FEATURE_methaneAlarm=0, NULL=0, NULL=40721, tmp___0=0, \result=1, retValue_acc=1, head=0, pumpRunning=0, tmp=1, NULL=40734, NULL=40731, NULL=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, __SELECTED_FEATURE_stopCommand=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5df0c9b7=0, NULL=40729, head=0, NULL=40726, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47e33889=0, choice=0, NULL=0, \result=0, __SELECTED_FEATURE_base=1, retValue_acc=0, NULL=0, NULL=0, NULL=40733, NULL=40728, NULL=0, NULL=10619, NULL=0, __GUIDSL_ROOT_PRODUCTION=1, NULL=40739, NULL=0, NULL=0, switchedOnBeforeTS=0, \result=0, NULL=40717, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c96d70a=0, NULL=0, NULL=40732, NULL=10617, NULL=0, NULL=40718, __SELECTED_FEATURE_lowWaterSensor=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=40723, \result=0, retValue_acc=0, NULL=40725, tmp___0=0, NULL=0, __SELECTED_FEATURE_highWaterSensor=0, NULL=40714, retValue_acc=1, __SELECTED_FEATURE_methaneQuery=0, NULL=40727, tmp___2=47, splverifierCounter=0, NULL=0, NULL=40738, NULL=40722, NULL=40737, __SELECTED_FEATURE_startCommand=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ff23ed1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b25433=47, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e7e9019=0, NULL=40716, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc625a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b876c5=0, NULL=40715, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L50] int __SELECTED_FEATURE_base ; [L51] int __SELECTED_FEATURE_highWaterSensor ; [L52] int __SELECTED_FEATURE_lowWaterSensor ; [L53] int __SELECTED_FEATURE_methaneQuery ; [L54] int __SELECTED_FEATURE_methaneAlarm ; [L55] int __SELECTED_FEATURE_stopCommand ; [L56] int __SELECTED_FEATURE_startCommand ; [L57] int __GUIDSL_ROOT_PRODUCTION ; [L66] int waterLevel = 1; [L67] int methaneLevelCritical = 0; [L169] int cleanupTimeShifts = 4; [L496] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int pumpRunning = 0; [L776] int systemActive = 1; [L1111] int switchedOnBeforeTS ; [L250] int retValue_acc ; [L251] int tmp ; [L304] __GUIDSL_ROOT_PRODUCTION = 1 [L289] __SELECTED_FEATURE_base = 1 [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L290] __SELECTED_FEATURE_highWaterSensor = select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L291] __SELECTED_FEATURE_lowWaterSensor = select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L292] __SELECTED_FEATURE_methaneQuery = select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L293] __SELECTED_FEATURE_methaneAlarm = select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L294] __SELECTED_FEATURE_stopCommand = select_one() [L275] int retValue_acc ; [L276] int choice = __VERIFIER_nondet_int(); [L279] retValue_acc = choice [L280] return (retValue_acc); [L295] __SELECTED_FEATURE_startCommand = select_one() [L309] int retValue_acc ; [L312] retValue_acc = __SELECTED_FEATURE_base [L313] return (retValue_acc); [L257] tmp = valid_product() [L259] COND TRUE \read(tmp) [L1116] switchedOnBeforeTS = 0 [L696] int splverifierCounter ; [L697] int tmp ; [L698] int tmp___0 ; [L699] int tmp___1 ; [L700] int tmp___2 ; [L703] splverifierCounter = 0 Loop: [L705] COND TRUE 1 [L707] COND TRUE splverifierCounter < 4 [L713] tmp = __VERIFIER_nondet_int() [L715] COND FALSE !(\read(tmp)) [L723] tmp___0 = __VERIFIER_nondet_int() [L725] COND FALSE !(\read(tmp___0)) [L733] tmp___2 = __VERIFIER_nondet_int() [L735] COND TRUE \read(tmp___2) [L736] COND FALSE !(\read(__SELECTED_FEATURE_startCommand)) [L1005] int retValue_acc ; [L1008] retValue_acc = pumpRunning [L1009] return (retValue_acc); [L1125] switchedOnBeforeTS = isPumpRunning() [L787] COND FALSE !(\read(pumpRunning)) [L794] COND TRUE \read(systemActive) [L930] COND FALSE !(\read(__SELECTED_FEATURE_methaneAlarm)) [L887] COND FALSE !(\read(__SELECTED_FEATURE_lowWaterSensor)) [L844] COND FALSE !(\read(__SELECTED_FEATURE_highWaterSensor)) [L1131] int tmp ; [L1132] int tmp___0 ; [L137] int retValue_acc ; [L140] retValue_acc = waterLevel [L141] return (retValue_acc); [L1136] tmp = getWaterLevel() [L1138] COND TRUE tmp != 2 [L1005] int retValue_acc ; [L1008] retValue_acc = pumpRunning [L1009] return (retValue_acc); [L1140] tmp___0 = isPumpRunning() [L1142] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:39:16,883 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0d04d002-df40-4bb4-9708-448d5c3c359d/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...