./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 63182f13 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y --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 0e76649cac6515f08270152166e80012375eb96b6ec0655501fc67165d9b0051 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-63182f1 [2021-11-13 18:29:21,022 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-13 18:29:21,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-13 18:29:21,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-13 18:29:21,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-13 18:29:21,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-13 18:29:21,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-13 18:29:21,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-13 18:29:21,092 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-13 18:29:21,100 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-13 18:29:21,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-13 18:29:21,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-13 18:29:21,104 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-13 18:29:21,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-13 18:29:21,110 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-13 18:29:21,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-13 18:29:21,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-13 18:29:21,119 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-13 18:29:21,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-13 18:29:21,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-13 18:29:21,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-13 18:29:21,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-13 18:29:21,138 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-13 18:29:21,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-13 18:29:21,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-13 18:29:21,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-13 18:29:21,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-13 18:29:21,147 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-13 18:29:21,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-13 18:29:21,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-13 18:29:21,150 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-13 18:29:21,151 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-13 18:29:21,154 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-13 18:29:21,155 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-13 18:29:21,157 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-13 18:29:21,157 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-13 18:29:21,158 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-13 18:29:21,159 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-13 18:29:21,159 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-13 18:29:21,160 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-13 18:29:21,161 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-13 18:29:21,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-13 18:29:21,224 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-13 18:29:21,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-13 18:29:21,226 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-13 18:29:21,226 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-13 18:29:21,227 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-13 18:29:21,228 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-13 18:29:21,228 INFO L138 SettingsManager]: * Use SBE=true [2021-11-13 18:29:21,228 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-13 18:29:21,228 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-13 18:29:21,228 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-13 18:29:21,230 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-13 18:29:21,230 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-13 18:29:21,230 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-13 18:29:21,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-13 18:29:21,230 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-13 18:29:21,231 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-13 18:29:21,231 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-13 18:29:21,231 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-13 18:29:21,231 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-13 18:29:21,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-13 18:29:21,232 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-13 18:29:21,232 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-13 18:29:21,232 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-13 18:29:21,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-13 18:29:21,232 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-13 18:29:21,233 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-13 18:29:21,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-13 18:29:21,235 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-13 18:29:21,235 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-13 18:29:21,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-13 18:29:21,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-13 18:29:21,236 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-13 18:29:21,237 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-13 18:29:21,237 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_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e76649cac6515f08270152166e80012375eb96b6ec0655501fc67165d9b0051 [2021-11-13 18:29:21,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-13 18:29:21,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-13 18:29:21,515 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-13 18:29:21,516 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-13 18:29:21,517 INFO L275 PluginConnector]: CDTParser initialized [2021-11-13 18:29:21,518 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/../../sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2021-11-13 18:29:21,588 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/data/9b2ba098f/8747655c19f843f2b4335545615bae13/FLAG3750578c4 [2021-11-13 18:29:22,209 INFO L306 CDTParser]: Found 1 translation units. [2021-11-13 18:29:22,209 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c [2021-11-13 18:29:22,233 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/data/9b2ba098f/8747655c19f843f2b4335545615bae13/FLAG3750578c4 [2021-11-13 18:29:22,484 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/data/9b2ba098f/8747655c19f843f2b4335545615bae13 [2021-11-13 18:29:22,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-13 18:29:22,489 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-13 18:29:22,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-13 18:29:22,492 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-13 18:29:22,495 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-13 18:29:22,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:29:22" (1/1) ... [2021-11-13 18:29:22,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a354ca4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:22, skipping insertion in model container [2021-11-13 18:29:22,497 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 06:29:22" (1/1) ... [2021-11-13 18:29:22,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-13 18:29:22,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-13 18:29:22,885 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_537c24f2-a1d2-40d9-b17c-770fe977e34b/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c[17902,17915] [2021-11-13 18:29:22,888 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:29:22,908 INFO L203 MainTranslator]: Completed pre-run [2021-11-13 18:29:23,001 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_537c24f2-a1d2-40d9-b17c-770fe977e34b/sv-benchmarks/c/product-lines/minepump_spec1_product21.cil.c[17902,17915] [2021-11-13 18:29:23,001 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-13 18:29:23,022 INFO L208 MainTranslator]: Completed translation [2021-11-13 18:29:23,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23 WrapperNode [2021-11-13 18:29:23,023 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-13 18:29:23,024 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-13 18:29:23,024 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-13 18:29:23,024 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-13 18:29:23,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,050 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,098 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-13 18:29:23,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-13 18:29:23,099 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-13 18:29:23,099 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-13 18:29:23,108 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,114 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,114 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,127 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,134 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-13 18:29:23,152 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-13 18:29:23,153 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-13 18:29:23,153 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-13 18:29:23,154 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (1/1) ... [2021-11-13 18:29:23,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-13 18:29:23,178 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/z3 [2021-11-13 18:29:23,195 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-13 18:29:23,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-13 18:29:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-13 18:29:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-13 18:29:23,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-13 18:29:23,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-13 18:29:24,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-13 18:29:24,114 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-13 18:29:24,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:29:24 BoogieIcfgContainer [2021-11-13 18:29:24,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-13 18:29:24,118 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-13 18:29:24,118 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-13 18:29:24,121 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-13 18:29:24,122 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:29:24,123 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.11 06:29:22" (1/3) ... [2021-11-13 18:29:24,124 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4312403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:29:24, skipping insertion in model container [2021-11-13 18:29:24,124 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:29:24,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 06:29:23" (2/3) ... [2021-11-13 18:29:24,125 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4312403e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.11 06:29:24, skipping insertion in model container [2021-11-13 18:29:24,125 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-13 18:29:24,125 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:29:24" (3/3) ... [2021-11-13 18:29:24,127 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product21.cil.c [2021-11-13 18:29:24,174 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-13 18:29:24,174 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-13 18:29:24,174 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-13 18:29:24,174 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-13 18:29:24,175 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-13 18:29:24,175 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-13 18:29:24,175 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-13 18:29:24,175 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-13 18:29:24,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 150 states, 149 states have (on average 1.348993288590604) internal successors, (201), 149 states have internal predecessors, (201), 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) [2021-11-13 18:29:24,224 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2021-11-13 18:29:24,224 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:29:24,225 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:29:24,232 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:24,232 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:24,232 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-13 18:29:24,233 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 150 states, 149 states have (on average 1.348993288590604) internal successors, (201), 149 states have internal predecessors, (201), 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) [2021-11-13 18:29:24,241 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 96 [2021-11-13 18:29:24,242 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:29:24,242 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:29:24,243 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:24,243 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:24,248 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(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(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 42#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 39#L664true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 150#L657true 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; 121#L672true main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 88#L535true assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 31#L508true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56#1, test_#t~nondet57#1, test_#t~nondet58#1, test_#t~nondet59#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 67#L687-2true [2021-11-13 18:29:24,249 INFO L793 eck$LassoCheckResult]: Loop: 67#L687-2true assume !false; 108#L688true assume test_~splverifierCounter~0#1 < 4; 81#L689true test_~tmp~5#1 := test_#t~nondet56#1;havoc test_#t~nondet56#1; 35#L697true assume !(0 != test_~tmp~5#1); 4#L697-2true test_~tmp___0~1#1 := test_#t~nondet57#1;havoc test_#t~nondet57#1; 77#L707true assume !(0 != test_~tmp___0~1#1); 125#L707-2true test_~tmp___2~0#1 := test_#t~nondet58#1;havoc test_#t~nondet58#1; 23#L717true assume 0 != test_~tmp___2~0#1; 49#L723-2true assume { :begin_inline_timeShift } true; 25#L751true assume !(0 != ~pumpRunning~0); 8#L751-2true assume !(0 != ~systemActive~0); 69#L758-1true assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret42#1, __utac_acc__Specification1_spec__1_#t~ret43#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 91#L596-1true __utac_acc__Specification1_spec__1_#t~ret42#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret42#1;havoc __utac_acc__Specification1_spec__1_#t~ret42#1; 90#L427true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 62#L427-1true assume { :end_inline___utac_acc__Specification1_spec__1 } true; 9#L768true assume { :end_inline_timeShift } true; 67#L687-2true [2021-11-13 18:29:24,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:24,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-13 18:29:24,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:24,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816889288] [2021-11-13 18:29:24,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:24,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:24,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:24,615 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:29:24,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:24,816 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:29:24,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:24,823 INFO L85 PathProgramCache]: Analyzing trace with hash 679870084, now seen corresponding path program 1 times [2021-11-13 18:29:24,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:24,825 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014261534] [2021-11-13 18:29:24,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:24,826 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:24,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:24,837 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:29:24,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:24,852 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:29:24,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:24,854 INFO L85 PathProgramCache]: Analyzing trace with hash 2035289160, now seen corresponding path program 1 times [2021-11-13 18:29:24,854 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:24,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281855312] [2021-11-13 18:29:24,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:24,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:24,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-13 18:29:24,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-13 18:29:24,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-13 18:29:24,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281855312] [2021-11-13 18:29:24,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281855312] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-13 18:29:24,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-13 18:29:24,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-13 18:29:24,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303446635] [2021-11-13 18:29:24,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-13 18:29:25,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-13 18:29:25,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-13 18:29:25,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-13 18:29:25,121 INFO L87 Difference]: Start difference. First operand has 150 states, 149 states have (on average 1.348993288590604) internal successors, (201), 149 states have internal predecessors, (201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-13 18:29:25,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-13 18:29:25,348 INFO L93 Difference]: Finished difference Result 147 states and 187 transitions. [2021-11-13 18:29:25,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-13 18:29:25,355 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 187 transitions. [2021-11-13 18:29:25,369 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2021-11-13 18:29:25,376 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 137 states and 177 transitions. [2021-11-13 18:29:25,377 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 137 [2021-11-13 18:29:25,377 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 137 [2021-11-13 18:29:25,378 INFO L73 IsDeterministic]: Start isDeterministic. Operand 137 states and 177 transitions. [2021-11-13 18:29:25,379 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-13 18:29:25,379 INFO L681 BuchiCegarLoop]: Abstraction has 137 states and 177 transitions. [2021-11-13 18:29:25,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states and 177 transitions. [2021-11-13 18:29:25,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 137. [2021-11-13 18:29:25,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 137 states have (on average 1.2919708029197081) internal successors, (177), 136 states have internal predecessors, (177), 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) [2021-11-13 18:29:25,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 177 transitions. [2021-11-13 18:29:25,409 INFO L704 BuchiCegarLoop]: Abstraction has 137 states and 177 transitions. [2021-11-13 18:29:25,409 INFO L587 BuchiCegarLoop]: Abstraction has 137 states and 177 transitions. [2021-11-13 18:29:25,409 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-13 18:29:25,409 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 137 states and 177 transitions. [2021-11-13 18:29:25,410 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 92 [2021-11-13 18:29:25,411 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-13 18:29:25,411 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-13 18:29:25,412 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-13 18:29:25,412 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] [2021-11-13 18:29:25,412 INFO L791 eck$LassoCheckResult]: Stem: 449#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(13);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string48.base, #t~string48.offset, 1);call write~init~int(77, #t~string48.base, 1 + #t~string48.offset, 1);call write~init~int(101, #t~string48.base, 2 + #t~string48.offset, 1);call write~init~int(116, #t~string48.base, 3 + #t~string48.offset, 1);call write~init~int(104, #t~string48.base, 4 + #t~string48.offset, 1);call write~init~int(58, #t~string48.base, 5 + #t~string48.offset, 1);call write~init~int(0, #t~string48.base, 6 + #t~string48.offset, 1);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string50.base, #t~string50.offset, 1);call write~init~int(82, #t~string50.base, 1 + #t~string50.offset, 1);call write~init~int(73, #t~string50.base, 2 + #t~string50.offset, 1);call write~init~int(84, #t~string50.base, 3 + #t~string50.offset, 1);call write~init~int(0, #t~string50.base, 4 + #t~string50.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string52.base, #t~string52.offset, 1);call write~init~int(75, #t~string52.base, 1 + #t~string52.offset, 1);call write~init~int(0, #t~string52.base, 2 + #t~string52.offset, 1);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string54.base, #t~string54.offset, 1);call write~init~int(0, #t~string54.base, 1 + #t~string54.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(13);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(110, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 2 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(102, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 3 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string70.base, #t~string70.offset, 1);call write~init~int(80, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(117, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(109, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(112, #t~string70.base, 4 + #t~string70.offset, 1);call write~init~int(58, #t~string70.base, 5 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 6 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(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(3);call write~init~int(41, #t~string76.base, #t~string76.offset, 1);call write~init~int(32, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 2 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 378#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret44#1, main_~retValue_acc~3#1, main_~tmp~4#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~4#1;assume { :begin_inline_select_helpers } true; 375#L664 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 376#L657 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; 444#L672 main_#t~ret44#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~4#1 := main_#t~ret44#1;havoc main_#t~ret44#1; 431#L535 assume 0 != main_~tmp~4#1;assume { :begin_inline_setup } true; 364#L508 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet56#1, test_#t~nondet57#1, test_#t~nondet58#1, test_#t~nondet59#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 324#L687-2 [2021-11-13 18:29:25,412 INFO L793 eck$LassoCheckResult]: Loop: 324#L687-2 assume !false; 410#L688 assume test_~splverifierCounter~0#1 < 4; 428#L689 test_~tmp~5#1 := test_#t~nondet56#1;havoc test_#t~nondet56#1; 371#L697 assume !(0 != test_~tmp~5#1); 315#L697-2 test_~tmp___0~1#1 := test_#t~nondet57#1;havoc test_#t~nondet57#1; 316#L707 assume !(0 != test_~tmp___0~1#1); 366#L707-2 test_~tmp___2~0#1 := test_#t~nondet58#1;havoc test_#t~nondet58#1; 351#L717 assume 0 != test_~tmp___2~0#1; 353#L723-2 assume { :begin_inline_timeShift } true; 356#L751 assume !(0 != ~pumpRunning~0); 327#L751-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret61#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1; 328#L809 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret60#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1; 447#L783-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 422#L775-3 assume { :end_inline_processEnvironment__wrappee__base } true; 342#L783-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 419#L809-1 assume { :end_inline_processEnvironment } true; 413#L758-1 assume { :begin_inline___utac_acc__Specification1_spec__1 } true;havoc __utac_acc__Specification1_spec__1_#t~ret42#1, __utac_acc__Specification1_spec__1_#t~ret43#1, __utac_acc__Specification1_spec__1_~tmp~3#1, __utac_acc__Specification1_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification1_spec__1_~tmp~3#1;havoc __utac_acc__Specification1_spec__1_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;havoc isMethaneLevelCritical_~retValue_acc~4#1;isMethaneLevelCritical_~retValue_acc~4#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~4#1; 414#L596-1 __utac_acc__Specification1_spec__1_#t~ret42#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification1_spec__1_~tmp~3#1 := __utac_acc__Specification1_spec__1_#t~ret42#1;havoc __utac_acc__Specification1_spec__1_#t~ret42#1; 433#L427 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~3#1); 405#L427-1 assume { :end_inline___utac_acc__Specification1_spec__1 } true; 323#L768 assume { :end_inline_timeShift } true; 324#L687-2 [2021-11-13 18:29:25,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:25,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-13 18:29:25,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:25,414 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588341773] [2021-11-13 18:29:25,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:25,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,458 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:29:25,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,517 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:29:25,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1867519298, now seen corresponding path program 1 times [2021-11-13 18:29:25,518 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:25,518 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584960528] [2021-11-13 18:29:25,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:25,519 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:25,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,540 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:29:25,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,546 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:29:25,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-13 18:29:25,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1415850118, now seen corresponding path program 1 times [2021-11-13 18:29:25,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-13 18:29:25,547 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87598210] [2021-11-13 18:29:25,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-13 18:29:25,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-13 18:29:25,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,605 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-13 18:29:25,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-13 18:29:25,687 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-13 18:30:29,069 WARN L227 SmtUtils]: Spent 1.05m on a formula simplification. DAG size of input: 491 DAG size of output: 433 (called from [L 231] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:31:34,556 WARN L227 SmtUtils]: Spent 31.22s on a formula simplification that was a NOOP. DAG size: 433 (called from [L 268] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2021-11-13 18:31:34,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.11 06:31:34 BoogieIcfgContainer [2021-11-13 18:31:34,686 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-13 18:31:34,688 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-13 18:31:34,688 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-13 18:31:34,688 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-13 18:31:34,689 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 06:29:24" (3/4) ... [2021-11-13 18:31:34,691 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-13 18:31:34,746 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/witness.graphml [2021-11-13 18:31:34,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-13 18:31:34,747 INFO L158 Benchmark]: Toolchain (without parser) took 132258.37ms. Allocated memory was 98.6MB in the beginning and 151.0MB in the end (delta: 52.4MB). Free memory was 64.5MB in the beginning and 94.2MB in the end (delta: -29.6MB). Peak memory consumption was 22.8MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,748 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-13 18:31:34,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 531.38ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 65.7MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,749 INFO L158 Benchmark]: Boogie Procedure Inliner took 73.90ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 62.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,750 INFO L158 Benchmark]: Boogie Preprocessor took 52.91ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 60.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,750 INFO L158 Benchmark]: RCFGBuilder took 964.36ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.7MB in the beginning and 72.2MB in the end (delta: -12.5MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,751 INFO L158 Benchmark]: BuchiAutomizer took 130568.75ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 71.9MB in the beginning and 97.2MB in the end (delta: -25.3MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,752 INFO L158 Benchmark]: Witness Printer took 58.82ms. Allocated memory is still 151.0MB. Free memory was 97.2MB in the beginning and 94.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-13 18:31:34,755 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 98.6MB. Free memory is still 51.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 531.38ms. Allocated memory is still 98.6MB. Free memory was 64.3MB in the beginning and 65.7MB in the end (delta: -1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 73.90ms. Allocated memory is still 98.6MB. Free memory was 65.7MB in the beginning and 62.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.91ms. Allocated memory is still 98.6MB. Free memory was 62.4MB in the beginning and 60.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 964.36ms. Allocated memory was 98.6MB in the beginning and 125.8MB in the end (delta: 27.3MB). Free memory was 59.7MB in the beginning and 72.2MB in the end (delta: -12.5MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 130568.75ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 71.9MB in the beginning and 97.2MB in the end (delta: -25.3MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Witness Printer took 58.82ms. Allocated memory is still 151.0MB. Free memory was 97.2MB in the beginning and 94.2MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 137 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 130.5s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 130.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 137 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 551 SdHoareTripleChecker+Valid, 146.54ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 551 mSDsluCounter, 186 SdHoareTripleChecker+Invalid, 126.68ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 182 mSDtfsCounter, 8 mSolverCounterSat, 13.12ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 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: 687]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17431} State at position 1 is {splverifierCounter=0, NULL=0, NULL=0, retValue_acc=0, tmp___0=0, NULL=0, NULL=17431, NULL=17445, NULL=17449, NULL=17439, tmp=0, NULL=17446, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25bb357d=0, NULL=17451, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f45af23=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@181984b7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@106b937e=0, NULL=17438, NULL=0, NULL=0, NULL=17441, NULL=17458, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e2698cf=0, NULL=0, NULL=0, tmp___2=55, NULL=17452, NULL=17453, NULL=17448, cleanupTimeShifts=4, NULL=17455, NULL=17459, NULL=17443, \result=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=17432, tmp___0=0, head=0, pumpRunning=0, NULL=17450, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@66bc1d88=0, NULL=17435, NULL=0, NULL=17442, NULL=0, NULL=0, NULL=0, NULL=17454, NULL=17444, retValue_acc=0, NULL=0, \result=0, retValue_acc=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ce0ab1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c6a4ae8=55, \result=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5095c730=0, NULL=17433, NULL=0, NULL=17460, NULL=17436, NULL=0, tmp=1, NULL=17434, NULL=17437, NULL=17440, head=0, NULL=0, NULL=0, NULL=17456, NULL=0, NULL=0, tmp=0, tmp=0, NULL=17447, NULL=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 687]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L445] int cleanupTimeShifts = 4; [L553] int waterLevel = 1; [L554] int methaneLevelCritical = 0; [L744] int pumpRunning = 0; [L745] int systemActive = 1; [L526] int retValue_acc ; [L527] int tmp ; [L531] FCALL select_helpers() [L532] FCALL select_features() [L533] CALL, EXPR valid_product() [L668] int retValue_acc ; [L671] retValue_acc = 1 [L672] return (retValue_acc); [L533] RET, EXPR valid_product() [L533] tmp = valid_product() [L535] COND TRUE \read(tmp) [L537] FCALL setup() [L538] CALL runTest() [L517] CALL test() [L678] int splverifierCounter ; [L679] int tmp ; [L680] int tmp___0 ; [L681] int tmp___1 ; [L682] int tmp___2 ; [L685] splverifierCounter = 0 Loop: [L687] COND TRUE 1 [L689] COND TRUE splverifierCounter < 4 [L695] tmp = __VERIFIER_nondet_int() [L697] COND FALSE !(\read(tmp)) [L705] tmp___0 = __VERIFIER_nondet_int() [L707] COND FALSE !(\read(tmp___0)) [L715] tmp___2 = __VERIFIER_nondet_int() [L717] COND TRUE \read(tmp___2) [L730] CALL timeShift() [L751] COND FALSE !(\read(pumpRunning)) [L758] COND TRUE \read(systemActive) [L760] CALL processEnvironment() [L806] int tmp ; [L809] COND FALSE !(\read(pumpRunning)) [L824] CALL processEnvironment__wrappee__lowWaterSensor() [L780] int tmp ; [L783] COND FALSE !(\read(pumpRunning)) [L798] FCALL processEnvironment__wrappee__base() [L824] RET processEnvironment__wrappee__lowWaterSensor() [L760] RET processEnvironment() [L766] CALL __utac_acc__Specification1_spec__1() [L420] int tmp ; [L421] int tmp___0 ; [L425] CALL, EXPR isMethaneLevelCritical() [L592] int retValue_acc ; [L595] retValue_acc = methaneLevelCritical [L596] return (retValue_acc); [L425] RET, EXPR isMethaneLevelCritical() [L425] tmp = isMethaneLevelCritical() [L427] COND FALSE !(\read(tmp)) [L766] RET __utac_acc__Specification1_spec__1() [L730] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-13 18:31:34,834 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_537c24f2-a1d2-40d9-b17c-770fe977e34b/bin/uautomizer-YU5uOKAj3y/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)