./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF --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 faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 07:05:45,108 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 07:05:45,111 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 07:05:45,153 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 07:05:45,154 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 07:05:45,155 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 07:05:45,157 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 07:05:45,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 07:05:45,163 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 07:05:45,164 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 07:05:45,166 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 07:05:45,168 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 07:05:45,168 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 07:05:45,170 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 07:05:45,172 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 07:05:45,174 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 07:05:45,175 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 07:05:45,177 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 07:05:45,180 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 07:05:45,182 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 07:05:45,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 07:05:45,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 07:05:45,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 07:05:45,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 07:05:45,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 07:05:45,201 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 07:05:45,202 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 07:05:45,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 07:05:45,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 07:05:45,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 07:05:45,206 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 07:05:45,207 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 07:05:45,208 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 07:05:45,209 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 07:05:45,211 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 07:05:45,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 07:05:45,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 07:05:45,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 07:05:45,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 07:05:45,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 07:05:45,217 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 07:05:45,222 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 07:05:45,263 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 07:05:45,272 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 07:05:45,273 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 07:05:45,273 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 07:05:45,275 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 07:05:45,275 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 07:05:45,275 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 07:05:45,276 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 07:05:45,276 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 07:05:45,276 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 07:05:45,277 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 07:05:45,278 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 07:05:45,278 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 07:05:45,278 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 07:05:45,278 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 07:05:45,279 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 07:05:45,279 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 07:05:45,279 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 07:05:45,279 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 07:05:45,280 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 07:05:45,280 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 07:05:45,280 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 07:05:45,280 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 07:05:45,280 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 07:05:45,281 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 07:05:45,281 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 07:05:45,283 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 07:05:45,283 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 07:05:45,284 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 07:05:45,284 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 07:05:45,284 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 07:05:45,285 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 07:05:45,286 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 07:05:45,287 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_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> faabc130c8aadbb7390121b68f1c41e161e50da9443e348cb1c3db1c45e9e0cb [2021-11-20 07:05:45,594 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 07:05:45,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 07:05:45,626 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 07:05:45,627 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 07:05:45,629 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 07:05:45,631 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-11-20 07:05:45,709 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/data/94701ecbb/757002f69ff049eb9dc5b70048684b66/FLAG3e2516d16 [2021-11-20 07:05:46,393 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 07:05:46,397 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c [2021-11-20 07:05:46,413 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/data/94701ecbb/757002f69ff049eb9dc5b70048684b66/FLAG3e2516d16 [2021-11-20 07:05:46,705 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/data/94701ecbb/757002f69ff049eb9dc5b70048684b66 [2021-11-20 07:05:46,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 07:05:46,710 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 07:05:46,717 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 07:05:46,717 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 07:05:46,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 07:05:46,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:05:46" (1/1) ... [2021-11-20 07:05:46,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5268aa77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:46, skipping insertion in model container [2021-11-20 07:05:46,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 07:05:46" (1/1) ... [2021-11-20 07:05:46,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 07:05:46,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 07:05:47,035 WARN L230 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_bd1e2749-e7ca-48f2-bec9-38863e2fd628/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2021-11-20 07:05:47,110 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:05:47,121 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 07:05:47,152 WARN L230 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_bd1e2749-e7ca-48f2-bec9-38863e2fd628/sv-benchmarks/c/product-lines/minepump_spec2_product39.cil.c[5087,5100] [2021-11-20 07:05:47,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 07:05:47,253 INFO L208 MainTranslator]: Completed translation [2021-11-20 07:05:47,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47 WrapperNode [2021-11-20 07:05:47,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 07:05:47,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 07:05:47,255 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 07:05:47,255 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 07:05:47,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,350 INFO L137 Inliner]: procedures = 55, calls = 156, calls flagged for inlining = 53, calls inlined = 80, statements flattened = 604 [2021-11-20 07:05:47,351 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 07:05:47,351 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 07:05:47,352 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 07:05:47,352 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 07:05:47,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,427 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 07:05:47,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 07:05:47,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 07:05:47,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 07:05:47,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (1/1) ... [2021-11-20 07:05:47,492 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 07:05:47,516 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 07:05:47,537 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 07:05:47,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 07:05:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 07:05:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 07:05:47,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 07:05:47,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 07:05:47,716 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 07:05:47,720 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 07:05:48,138 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 07:05:48,148 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 07:05:48,148 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 07:05:48,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:48 BoogieIcfgContainer [2021-11-20 07:05:48,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 07:05:48,152 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 07:05:48,152 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 07:05:48,156 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 07:05:48,157 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:05:48,157 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 07:05:46" (1/3) ... [2021-11-20 07:05:48,158 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354c367b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:05:48, skipping insertion in model container [2021-11-20 07:05:48,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:05:48,159 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 07:05:47" (2/3) ... [2021-11-20 07:05:48,159 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@354c367b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 07:05:48, skipping insertion in model container [2021-11-20 07:05:48,159 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 07:05:48,160 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:48" (3/3) ... [2021-11-20 07:05:48,161 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product39.cil.c [2021-11-20 07:05:48,210 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 07:05:48,210 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 07:05:48,210 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 07:05:48,211 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 07:05:48,211 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 07:05:48,211 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 07:05:48,211 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 07:05:48,212 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 07:05:48,268 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:48,325 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-11-20 07:05:48,325 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:05:48,325 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:05:48,332 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:48,332 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:48,333 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 07:05:48,334 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:48,362 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 106 [2021-11-20 07:05:48,362 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:05:48,362 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:05:48,369 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:48,370 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:48,377 INFO L791 eck$LassoCheckResult]: Stem: 147#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 56#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 62#L590true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 121#L583true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 140#L598true main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 47#L241true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 95#L212true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 160#L263true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 97#L316-2true [2021-11-20 07:05:48,380 INFO L793 eck$LassoCheckResult]: Loop: 97#L316-2true assume !false; 10#L317true assume test_~splverifierCounter~0#1 < 4; 158#L318true test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 45#L326true assume !(0 != test_~tmp~2#1); 24#L326-2true test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 103#L336true assume !(0 != test_~tmp___0~1#1); 105#L336-2true test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 60#L346true assume 0 != test_~tmp___2~0#1; 44#L352-2true assume { :begin_inline_timeShift } true; 146#L382true assume !(0 != ~pumpRunning~0); 27#L382-2true assume !(0 != ~systemActive~0); 86#L389-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 96#L100-1true __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 114#L274true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 104#L274-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 91#L399true assume { :end_inline_timeShift } true; 97#L316-2true [2021-11-20 07:05:48,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:48,392 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-11-20 07:05:48,401 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:48,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838507890] [2021-11-20 07:05:48,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:48,403 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:48,525 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:48,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:48,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:48,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1457954550, now seen corresponding path program 1 times [2021-11-20 07:05:48,621 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:48,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107122448] [2021-11-20 07:05:48,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:48,623 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:48,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:48,654 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:48,671 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:48,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:48,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1620241933, now seen corresponding path program 1 times [2021-11-20 07:05:48,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:48,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286378288] [2021-11-20 07:05:48,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:48,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:48,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:05:48,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:05:48,833 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:05:48,833 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1286378288] [2021-11-20 07:05:48,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1286378288] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:05:48,834 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:05:48,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 07:05:48,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538551181] [2021-11-20 07:05:48,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:05:48,962 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:05:48,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 07:05:48,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 07:05:48,996 INFO L87 Difference]: Start difference. First operand has 164 states, 163 states have (on average 1.3803680981595092) internal successors, (225), 163 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 4.0) internal successors, (24), 5 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:05:49,115 INFO L93 Difference]: Finished difference Result 381 states and 504 transitions. [2021-11-20 07:05:49,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-20 07:05:49,121 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 381 states and 504 transitions. [2021-11-20 07:05:49,132 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 245 [2021-11-20 07:05:49,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 381 states to 351 states and 474 transitions. [2021-11-20 07:05:49,144 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 351 [2021-11-20 07:05:49,146 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 351 [2021-11-20 07:05:49,146 INFO L73 IsDeterministic]: Start isDeterministic. Operand 351 states and 474 transitions. [2021-11-20 07:05:49,149 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:05:49,149 INFO L681 BuchiCegarLoop]: Abstraction has 351 states and 474 transitions. [2021-11-20 07:05:49,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states and 474 transitions. [2021-11-20 07:05:49,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 206. [2021-11-20 07:05:49,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 206 states have (on average 1.3495145631067962) internal successors, (278), 205 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:49,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 278 transitions. [2021-11-20 07:05:49,211 INFO L704 BuchiCegarLoop]: Abstraction has 206 states and 278 transitions. [2021-11-20 07:05:49,211 INFO L587 BuchiCegarLoop]: Abstraction has 206 states and 278 transitions. [2021-11-20 07:05:49,211 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 07:05:49,212 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 206 states and 278 transitions. [2021-11-20 07:05:49,220 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 144 [2021-11-20 07:05:49,220 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:05:49,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:05:49,223 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:49,223 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] [2021-11-20 07:05:49,223 INFO L791 eck$LassoCheckResult]: Stem: 714#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 650#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 651#L590 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 658#L583 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 699#L598 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 641#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 642#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 691#L263 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 687#L316-2 [2021-11-20 07:05:49,223 INFO L793 eck$LassoCheckResult]: Loop: 687#L316-2 assume !false; 575#L317 assume test_~splverifierCounter~0#1 < 4; 576#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 638#L326 assume !(0 != test_~tmp~2#1); 608#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 609#L336 assume !(0 != test_~tmp___0~1#1); 579#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 654#L346 assume 0 != test_~tmp___2~0#1; 636#L352-2 assume { :begin_inline_timeShift } true; 637#L382 assume !(0 != ~pumpRunning~0); 612#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 613#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 694#L414-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 695#L406-3 assume { :end_inline_processEnvironment__wrappee__base } true; 689#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 600#L440-1 assume { :end_inline_processEnvironment } true; 632#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 684#L100-1 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 692#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 670#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 686#L399 assume { :end_inline_timeShift } true; 687#L316-2 [2021-11-20 07:05:49,224 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:49,224 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2021-11-20 07:05:49,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:49,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061775521] [2021-11-20 07:05:49,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:49,226 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:49,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,261 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:49,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,321 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:49,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:49,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1201305590, now seen corresponding path program 1 times [2021-11-20 07:05:49,322 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:49,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129937260] [2021-11-20 07:05:49,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:49,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:49,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 07:05:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 07:05:49,365 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 07:05:49,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129937260] [2021-11-20 07:05:49,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129937260] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 07:05:49,365 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 07:05:49,366 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 07:05:49,366 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8176214] [2021-11-20 07:05:49,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 07:05:49,366 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 07:05:49,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 07:05:49,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 07:05:49,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 07:05:49,368 INFO L87 Difference]: Start difference. First operand 206 states and 278 transitions. cyclomatic complexity: 75 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:49,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 07:05:49,460 INFO L93 Difference]: Finished difference Result 259 states and 335 transitions. [2021-11-20 07:05:49,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 07:05:49,463 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 259 states and 335 transitions. [2021-11-20 07:05:49,468 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2021-11-20 07:05:49,470 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 259 states to 259 states and 335 transitions. [2021-11-20 07:05:49,470 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 259 [2021-11-20 07:05:49,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 259 [2021-11-20 07:05:49,472 INFO L73 IsDeterministic]: Start isDeterministic. Operand 259 states and 335 transitions. [2021-11-20 07:05:49,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 07:05:49,479 INFO L681 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2021-11-20 07:05:49,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states and 335 transitions. [2021-11-20 07:05:49,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 259. [2021-11-20 07:05:49,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 259 states have (on average 1.2934362934362935) internal successors, (335), 258 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-20 07:05:49,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 335 transitions. [2021-11-20 07:05:49,519 INFO L704 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2021-11-20 07:05:49,519 INFO L587 BuchiCegarLoop]: Abstraction has 259 states and 335 transitions. [2021-11-20 07:05:49,519 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 07:05:49,519 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 259 states and 335 transitions. [2021-11-20 07:05:49,521 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 185 [2021-11-20 07:05:49,522 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 07:05:49,522 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 07:05:49,523 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:49,523 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 07:05:49,523 INFO L791 eck$LassoCheckResult]: Stem: 1198#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(13, 9);call #Ultimate.allocInit(3, 10);call write~init~int(79, 10, 0, 1);call write~init~int(110, 10, 1, 1);call write~init~int(0, 10, 2, 1);call #Ultimate.allocInit(4, 11);call write~init~int(79, 11, 0, 1);call write~init~int(102, 11, 1, 1);call write~init~int(102, 11, 2, 1);call write~init~int(0, 11, 3, 1);call #Ultimate.allocInit(7, 12);call write~init~int(44, 12, 0, 1);call write~init~int(80, 12, 1, 1);call write~init~int(117, 12, 2, 1);call write~init~int(109, 12, 3, 1);call write~init~int(112, 12, 4, 1);call write~init~int(58, 12, 5, 1);call write~init~int(0, 12, 6, 1);call #Ultimate.allocInit(3, 13);call write~init~int(79, 13, 0, 1);call write~init~int(110, 13, 1, 1);call write~init~int(0, 13, 2, 1);call #Ultimate.allocInit(4, 14);call write~init~int(79, 14, 0, 1);call write~init~int(102, 14, 1, 1);call write~init~int(102, 14, 2, 1);call write~init~int(0, 14, 3, 1);call #Ultimate.allocInit(3, 15);call write~init~int(41, 15, 0, 1);call write~init~int(32, 15, 1, 1);call write~init~int(0, 15, 2, 1);call #Ultimate.allocInit(2, 16);call write~init~int(10, 16, 0, 1);call write~init~int(0, 16, 1, 1);call #Ultimate.allocInit(30, 17);call #Ultimate.allocInit(9, 18);call #Ultimate.allocInit(21, 19);call #Ultimate.allocInit(30, 20);call #Ultimate.allocInit(9, 21);call #Ultimate.allocInit(21, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(9, 24);call #Ultimate.allocInit(25, 25);call #Ultimate.allocInit(30, 26);call #Ultimate.allocInit(9, 27);call #Ultimate.allocInit(25, 28);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1124#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret9#1, main_~retValue_acc~3#1, main_~tmp~0#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1125#L590 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1132#L583 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1179#L598 main_#t~ret9#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret9#1;havoc main_#t~ret9#1; 1115#L241 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1116#L212 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 1168#L263 assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_#t~nondet15#1, test_~splverifierCounter~0#1, test_~tmp~2#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~2#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1163#L316-2 [2021-11-20 07:05:49,523 INFO L793 eck$LassoCheckResult]: Loop: 1163#L316-2 assume !false; 1046#L317 assume test_~splverifierCounter~0#1 < 4; 1047#L318 test_~tmp~2#1 := test_#t~nondet12#1;havoc test_#t~nondet12#1; 1112#L326 assume !(0 != test_~tmp~2#1); 1076#L326-2 test_~tmp___0~1#1 := test_#t~nondet13#1;havoc test_#t~nondet13#1; 1077#L336 assume !(0 != test_~tmp___0~1#1); 1050#L336-2 test_~tmp___2~0#1 := test_#t~nondet14#1;havoc test_#t~nondet14#1; 1128#L346 assume 0 != test_~tmp___2~0#1; 1110#L352-2 assume { :begin_inline_timeShift } true; 1111#L382 assume !(0 != ~pumpRunning~0); 1086#L382-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret17#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1087#L440 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1, processEnvironment__wrappee__highWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~3#1; 1170#L414-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret27#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1130#L140-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1131#L145-1 isHighWaterLevel_#t~ret27#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret27#1;havoc isHighWaterLevel_#t~ret27#1; 1161#L542-3 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~2#1 := 0; 1126#L542-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1127#L548-1 processEnvironment__wrappee__highWaterSensor_#t~ret16#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~3#1 := processEnvironment__wrappee__highWaterSensor_#t~ret16#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret16#1; 1188#L418-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~3#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1164#L406-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1165#L414-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1071#L440-1 assume { :end_inline_processEnvironment } true; 1107#L389-1 assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret10#1, __utac_acc__Specification2_spec__2_#t~ret11#1, __utac_acc__Specification2_spec__2_~tmp~1#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~1#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 1272#L100-1 __utac_acc__Specification2_spec__2_#t~ret10#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~1#1 := __utac_acc__Specification2_spec__2_#t~ret10#1;havoc __utac_acc__Specification2_spec__2_#t~ret10#1; 1270#L274 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~1#1);~methAndRunningLastTime~0 := 0; 1267#L274-1 assume { :end_inline___utac_acc__Specification2_spec__2 } true; 1162#L399 assume { :end_inline_timeShift } true; 1163#L316-2 [2021-11-20 07:05:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:49,524 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2021-11-20 07:05:49,524 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:49,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571931422] [2021-11-20 07:05:49,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:49,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:49,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,572 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:49,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,617 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:49,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:49,617 INFO L85 PathProgramCache]: Analyzing trace with hash -613253906, now seen corresponding path program 1 times [2021-11-20 07:05:49,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:49,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435008166] [2021-11-20 07:05:49,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:49,618 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:49,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,630 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,650 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:49,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 07:05:49,651 INFO L85 PathProgramCache]: Analyzing trace with hash -442478491, now seen corresponding path program 1 times [2021-11-20 07:05:49,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 07:05:49,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913699764] [2021-11-20 07:05:49,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 07:05:49,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 07:05:49,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,674 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 07:05:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 07:05:49,717 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 07:05:53,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 07:05:53 BoogieIcfgContainer [2021-11-20 07:05:53,526 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 07:05:53,527 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 07:05:53,527 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 07:05:53,527 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 07:05:53,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 07:05:48" (3/4) ... [2021-11-20 07:05:53,530 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 07:05:53,602 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 07:05:53,602 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 07:05:53,603 INFO L158 Benchmark]: Toolchain (without parser) took 6892.65ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 58.0MB in the beginning and 50.5MB in the end (delta: 7.5MB). Peak memory consumption was 61.3MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,603 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 07:05:53,604 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.59ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 67.0MB in the end (delta: -9.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,605 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.42ms. Allocated memory is still 100.7MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,605 INFO L158 Benchmark]: Boogie Preprocessor took 108.46ms. Allocated memory is still 100.7MB. Free memory was 62.8MB in the beginning and 60.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,606 INFO L158 Benchmark]: RCFGBuilder took 690.26ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 39.1MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,606 INFO L158 Benchmark]: BuchiAutomizer took 5374.24ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 39.1MB in the beginning and 53.7MB in the end (delta: -14.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,607 INFO L158 Benchmark]: Witness Printer took 75.30ms. Allocated memory is still 155.2MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 07:05:53,610 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 100.7MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.59ms. Allocated memory is still 100.7MB. Free memory was 57.8MB in the beginning and 67.0MB in the end (delta: -9.2MB). Peak memory consumption was 4.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.42ms. Allocated memory is still 100.7MB. Free memory was 67.0MB in the beginning and 62.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 108.46ms. Allocated memory is still 100.7MB. Free memory was 62.8MB in the beginning and 60.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 690.26ms. Allocated memory is still 100.7MB. Free memory was 60.5MB in the beginning and 39.1MB in the end (delta: 21.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 5374.24ms. Allocated memory was 100.7MB in the beginning and 155.2MB in the end (delta: 54.5MB). Free memory was 39.1MB in the beginning and 53.7MB in the end (delta: -14.6MB). Peak memory consumption was 46.9MB. Max. memory is 16.1GB. * Witness Printer took 75.30ms. Allocated memory is still 155.2MB. Free memory was 53.7MB in the beginning and 50.5MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 259 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 5.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 4.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 145 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 259 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1142 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1142 mSDsluCounter, 1373 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 945 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 69 IncrementalHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 428 mSDtfsCounter, 69 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 316]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, NULL=0, head=0, tmp___0=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dd27160=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70943817=0, tmp___0=0, retValue_acc=1, methaneLevelCritical=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d832b0b=0, \result=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c7eb065=0, retValue_acc=0, \result=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@299f8656=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59d2f2a5=29, tmp=0, tmp=1, tmp___2=29, methAndRunningLastTime=0, cleanupTimeShifts=4, tmp=0, tmp=1, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3947ca92=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e72c3e5=0, tmp=0, head=0, tmp___1=0, NULL=0, retValue_acc=0, waterLevel=1, systemActive=1, tmp___0=0, tmp=0, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73201bed=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ad8fa77=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 316]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L151] int cleanupTimeShifts = 4; [L257] int methAndRunningLastTime ; [L375] int pumpRunning = 0; [L376] int systemActive = 1; [L772] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L232] int retValue_acc ; [L233] int tmp ; [L237] FCALL select_helpers() [L238] FCALL select_features() [L239] CALL, EXPR valid_product() [L594] int retValue_acc ; [L597] retValue_acc = 1 [L598] return (retValue_acc); [L239] RET, EXPR valid_product() [L239] tmp = valid_product() [L241] COND TRUE \read(tmp) [L243] FCALL setup() [L244] CALL runTest() [L222] CALL __utac_acc__Specification2_spec__1() [L262] methAndRunningLastTime = 0 [L222] RET __utac_acc__Specification2_spec__1() [L223] CALL test() [L307] int splverifierCounter ; [L308] int tmp ; [L309] int tmp___0 ; [L310] int tmp___1 ; [L311] int tmp___2 ; [L314] splverifierCounter = 0 Loop: [L316] COND TRUE 1 [L318] COND TRUE splverifierCounter < 4 [L324] tmp = __VERIFIER_nondet_int() [L326] COND FALSE !(\read(tmp)) [L334] tmp___0 = __VERIFIER_nondet_int() [L336] COND FALSE !(\read(tmp___0)) [L344] tmp___2 = __VERIFIER_nondet_int() [L346] COND TRUE \read(tmp___2) [L361] CALL timeShift() [L382] COND FALSE !(\read(pumpRunning)) [L389] COND TRUE \read(systemActive) [L391] CALL processEnvironment() [L437] int tmp ; [L440] COND FALSE !(\read(pumpRunning)) [L455] CALL processEnvironment__wrappee__highWaterSensor() [L411] int tmp ; [L414] COND TRUE ! pumpRunning [L416] CALL, EXPR isHighWaterLevel() [L534] int retValue_acc ; [L535] int tmp ; [L536] int tmp___0 ; [L540] CALL, EXPR isHighWaterSensorDry() [L137] int retValue_acc ; [L140] COND TRUE waterLevel < 2 [L141] retValue_acc = 1 [L142] return (retValue_acc); [L540] RET, EXPR isHighWaterSensorDry() [L540] tmp = isHighWaterSensorDry() [L542] COND TRUE \read(tmp) [L543] tmp___0 = 0 [L547] retValue_acc = tmp___0 [L548] return (retValue_acc); [L416] RET, EXPR isHighWaterLevel() [L416] tmp = isHighWaterLevel() [L418] COND FALSE !(\read(tmp)) [L424] FCALL processEnvironment__wrappee__base() [L455] RET processEnvironment__wrappee__highWaterSensor() [L391] RET processEnvironment() [L397] CALL __utac_acc__Specification2_spec__2() [L267] int tmp ; [L268] int tmp___0 ; [L272] CALL, EXPR isMethaneLevelCritical() [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L272] RET, EXPR isMethaneLevelCritical() [L272] tmp = isMethaneLevelCritical() [L274] COND FALSE !(\read(tmp)) [L290] methAndRunningLastTime = 0 [L397] RET __utac_acc__Specification2_spec__2() [L361] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 07:05:53,701 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bd1e2749-e7ca-48f2-bec9-38863e2fd628/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)