./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5fa4f60085f64a1804e4aca4b7be9247f343df1e9c84e33b08f4411c844fb6fe .......................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 23:29:32,119 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:29:32,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:29:32,172 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:29:32,173 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:29:32,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:29:32,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:29:32,180 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:29:32,182 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:29:32,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:29:32,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:29:32,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:29:32,188 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:29:32,190 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:29:32,192 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:29:32,194 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:29:32,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:29:32,197 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:29:32,199 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:29:32,202 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:29:32,204 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:29:32,206 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:29:32,207 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:29:32,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:29:32,212 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:29:32,213 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:29:32,214 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:29:32,215 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:29:32,215 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:29:32,217 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:29:32,217 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:29:32,219 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:29:32,220 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:29:32,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:29:32,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:29:32,223 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:29:32,224 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:29:32,224 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:29:32,224 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:29:32,226 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:29:32,227 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:29:32,228 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:29:32,268 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:29:32,269 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:29:32,270 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:29:32,270 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:29:32,271 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:29:32,272 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:29:32,272 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:29:32,272 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:29:32,273 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:29:32,273 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:29:32,274 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:29:32,274 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:29:32,275 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:29:32,275 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:29:32,275 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:29:32,275 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:29:32,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:29:32,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:29:32,276 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:29:32,276 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:29:32,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:29:32,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:29:32,277 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:29:32,277 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:29:32,277 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:29:32,278 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:29:32,280 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:29:32,281 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:29:32,281 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:29:32,281 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:29:32,281 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:29:32,282 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:29:32,283 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:29:32,283 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_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5fa4f60085f64a1804e4aca4b7be9247f343df1e9c84e33b08f4411c844fb6fe [2021-10-28 23:29:32,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:29:32,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:29:32,653 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:29:32,654 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:29:32,656 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:29:32,657 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2021-10-28 23:29:32,733 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/data/7c15025e3/7273ed7cca2a4006ac57ece168accd8a/FLAG750e58fe3 [2021-10-28 23:29:33,271 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:29:33,272 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c [2021-10-28 23:29:33,295 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/data/7c15025e3/7273ed7cca2a4006ac57ece168accd8a/FLAG750e58fe3 [2021-10-28 23:29:33,600 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/data/7c15025e3/7273ed7cca2a4006ac57ece168accd8a [2021-10-28 23:29:33,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:29:33,606 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:29:33,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:33,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:29:33,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:29:33,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:33" (1/1) ... [2021-10-28 23:29:33,615 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d73260 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:33, skipping insertion in model container [2021-10-28 23:29:33,615 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:29:33" (1/1) ... [2021-10-28 23:29:33,622 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:29:33,695 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:29:33,962 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_2c01b660-2417-466f-bcdf-f65a38ec2437/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c[16885,16898] [2021-10-28 23:29:33,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:33,980 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:29:34,067 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_2c01b660-2417-466f-bcdf-f65a38ec2437/sv-benchmarks/c/product-lines/minepump_spec5_product08.cil.c[16885,16898] [2021-10-28 23:29:34,084 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:29:34,120 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:29:34,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34 WrapperNode [2021-10-28 23:29:34,121 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:29:34,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:34,123 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:29:34,123 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:29:34,131 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,158 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,212 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:29:34,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:29:34,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:29:34,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:29:34,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,233 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,234 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,253 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:29:34,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:29:34,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:29:34,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:29:34,292 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (1/1) ... [2021-10-28 23:29:34,302 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:29:34,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:29:34,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:29:34,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:29:34,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:29:34,400 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:29:34,400 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:29:35,197 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:29:35,198 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-28 23:29:35,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35 BoogieIcfgContainer [2021-10-28 23:29:35,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:29:35,201 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:29:35,201 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:29:35,206 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:29:35,207 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,207 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:29:33" (1/3) ... [2021-10-28 23:29:35,209 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748886d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:29:35, skipping insertion in model container [2021-10-28 23:29:35,209 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,209 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:29:34" (2/3) ... [2021-10-28 23:29:35,210 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3748886d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:29:35, skipping insertion in model container [2021-10-28 23:29:35,210 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:29:35,210 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35" (3/3) ... [2021-10-28 23:29:35,212 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product08.cil.c [2021-10-28 23:29:35,271 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:29:35,271 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:29:35,272 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:29:35,272 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:29:35,272 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:29:35,272 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:29:35,272 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:29:35,272 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:29:35,293 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:35,327 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:29:35,327 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:35,327 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:35,335 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:35,335 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:35,335 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:29:35,337 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:35,350 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 49 [2021-10-28 23:29:35,351 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:35,351 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:35,353 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:35,354 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:35,365 INFO L791 eck$LassoCheckResult]: Stem: 59#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 43#L-1true havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 22#L416true havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 46#L424true main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 8#L380true assume 0 != main_~tmp~2; 37#L352true ~switchedOnBeforeTS~0 := 0; 7#L437true havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 67#L458-1true [2021-10-28 23:29:35,366 INFO L793 eck$LassoCheckResult]: Loop: 67#L458-1true assume !false; 50#L235true assume test_~splverifierCounter~0 < 4; 68#L236true test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 12#L244true assume !(0 != test_~tmp~1); 32#L244-1true test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 62#L254true assume !(0 != test_~tmp___0~0); 13#L254-1true test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 71#L264true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 6#L272-1true havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 9#L157true __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 33#L447true assume !(0 != ~pumpRunning~0); 78#L72true assume !(0 != ~systemActive~0); 63#L79true havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 69#L930true __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 42#L458true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 67#L458-1true [2021-10-28 23:29:35,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:35,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 23:29:35,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:35,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704852214] [2021-10-28 23:29:35,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:35,385 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:35,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,734 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:35,946 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:35,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:35,957 INFO L85 PathProgramCache]: Analyzing trace with hash 674918198, now seen corresponding path program 1 times [2021-10-28 23:29:35,957 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:35,958 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076787188] [2021-10-28 23:29:35,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:35,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:35,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:36,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:36,043 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:36,043 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076787188] [2021-10-28 23:29:36,044 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076787188] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:36,044 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:36,045 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:29:36,045 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1027635470] [2021-10-28 23:29:36,053 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:29:36,054 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:36,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:29:36,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:29:36,073 INFO L87 Difference]: Start difference. First operand has 77 states, 76 states have (on average 1.5) internal successors, (114), 76 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:36,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:36,125 INFO L93 Difference]: Finished difference Result 147 states and 203 transitions. [2021-10-28 23:29:36,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:29:36,128 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 147 states and 203 transitions. [2021-10-28 23:29:36,133 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 94 [2021-10-28 23:29:36,139 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 147 states to 133 states and 188 transitions. [2021-10-28 23:29:36,140 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 133 [2021-10-28 23:29:36,141 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 133 [2021-10-28 23:29:36,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 133 states and 188 transitions. [2021-10-28 23:29:36,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:36,143 INFO L681 BuchiCegarLoop]: Abstraction has 133 states and 188 transitions. [2021-10-28 23:29:36,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states and 188 transitions. [2021-10-28 23:29:36,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 131. [2021-10-28 23:29:36,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 131 states, 131 states have (on average 1.4122137404580153) internal successors, (185), 130 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:36,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 185 transitions. [2021-10-28 23:29:36,203 INFO L704 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-10-28 23:29:36,203 INFO L587 BuchiCegarLoop]: Abstraction has 131 states and 185 transitions. [2021-10-28 23:29:36,203 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:29:36,203 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 131 states and 185 transitions. [2021-10-28 23:29:36,212 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 92 [2021-10-28 23:29:36,217 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:36,217 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:36,218 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:36,218 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:36,218 INFO L791 eck$LassoCheckResult]: Stem: 301#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 289#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 265#L416 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 266#L424 main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 241#L380 assume 0 != main_~tmp~2; 242#L352 ~switchedOnBeforeTS~0 := 0; 239#L437 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 240#L458-1 [2021-10-28 23:29:36,218 INFO L793 eck$LassoCheckResult]: Loop: 240#L458-1 assume !false; 320#L235 assume test_~splverifierCounter~0 < 4; 319#L236 test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 318#L244 assume !(0 != test_~tmp~1); 316#L244-1 test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 315#L254 assume !(0 != test_~tmp___0~0); 313#L254-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 306#L264 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 237#L272-1 havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 238#L157 __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 243#L447 assume !(0 != ~pumpRunning~0); 281#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 307#L104 assume !(0 != ~pumpRunning~0); 327#L79 havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 326#L930 __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 324#L458 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~3); 240#L458-1 [2021-10-28 23:29:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:36,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 23:29:36,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:36,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628534554] [2021-10-28 23:29:36,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:36,221 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:36,296 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:36,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:36,400 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:36,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:36,432 INFO L85 PathProgramCache]: Analyzing trace with hash -572900797, now seen corresponding path program 1 times [2021-10-28 23:29:36,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:36,433 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482207127] [2021-10-28 23:29:36,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:36,433 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:36,444 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:36,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:36,464 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:36,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:36,465 INFO L85 PathProgramCache]: Analyzing trace with hash -747661431, now seen corresponding path program 1 times [2021-10-28 23:29:36,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:36,465 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619651364] [2021-10-28 23:29:36,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:36,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:29:36,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:29:36,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:29:36,572 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619651364] [2021-10-28 23:29:36,572 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619651364] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:29:36,572 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:29:36,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:29:36,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744995080] [2021-10-28 23:29:36,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:29:36,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 23:29:36,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 23:29:36,790 INFO L87 Difference]: Start difference. First operand 131 states and 185 transitions. cyclomatic complexity: 57 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:36,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:29:36,973 INFO L93 Difference]: Finished difference Result 504 states and 720 transitions. [2021-10-28 23:29:36,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-28 23:29:36,974 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 504 states and 720 transitions. [2021-10-28 23:29:36,984 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 350 [2021-10-28 23:29:36,994 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 504 states to 504 states and 720 transitions. [2021-10-28 23:29:36,994 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 504 [2021-10-28 23:29:36,997 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 504 [2021-10-28 23:29:36,997 INFO L73 IsDeterministic]: Start isDeterministic. Operand 504 states and 720 transitions. [2021-10-28 23:29:37,000 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:29:37,000 INFO L681 BuchiCegarLoop]: Abstraction has 504 states and 720 transitions. [2021-10-28 23:29:37,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 504 states and 720 transitions. [2021-10-28 23:29:37,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 504 to 249. [2021-10-28 23:29:37,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.3855421686746987) internal successors, (345), 248 states have internal predecessors, (345), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:29:37,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 345 transitions. [2021-10-28 23:29:37,023 INFO L704 BuchiCegarLoop]: Abstraction has 249 states and 345 transitions. [2021-10-28 23:29:37,023 INFO L587 BuchiCegarLoop]: Abstraction has 249 states and 345 transitions. [2021-10-28 23:29:37,024 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:29:37,024 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 345 transitions. [2021-10-28 23:29:37,026 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 180 [2021-10-28 23:29:37,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:29:37,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:29:37,027 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:37,027 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:29:37,027 INFO L791 eck$LassoCheckResult]: Stem: 966#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(13);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string12.base, #t~string12.offset, 1);call write~init~int(110, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 2 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(102, #t~string14.base, 2 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 3 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string16.base, #t~string16.offset, 1);call write~init~int(80, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(117, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(109, #t~string16.base, 3 + #t~string16.offset, 1);call write~init~int(112, #t~string16.base, 4 + #t~string16.offset, 1);call write~init~int(58, #t~string16.base, 5 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 6 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(110, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 2 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(102, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 3 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string22.base, #t~string22.offset, 1);call write~init~int(32, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string24.base, #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 1 + #t~string24.offset, 1);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(30);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(9);call #t~string54.base, #t~string54.offset := #Ultimate.allocOnStack(21);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(30);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(9);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(21);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(25);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(25);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(13);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(77, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(101, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(116, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(104, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string74.base, #t~string74.offset, 1);call write~init~int(82, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(73, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(84, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 4 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(75, #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(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 1 + #t~string78.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 950#L-1 havoc main_#res;havoc main_#t~ret29, main_~retValue_acc~2, main_~tmp~2;havoc main_~retValue_acc~2;havoc main_~tmp~2; 919#L416 havoc valid_product_#res;havoc valid_product_~retValue_acc~4;havoc valid_product_~retValue_acc~4;valid_product_~retValue_acc~4 := 1;valid_product_#res := valid_product_~retValue_acc~4; 920#L424 main_#t~ret29 := valid_product_#res;main_~tmp~2 := main_#t~ret29;havoc main_#t~ret29; 895#L380 assume 0 != main_~tmp~2; 896#L352 ~switchedOnBeforeTS~0 := 0; 893#L437 havoc test_#t~nondet25, test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 894#L458-1 [2021-10-28 23:29:37,027 INFO L793 eck$LassoCheckResult]: Loop: 894#L458-1 assume !false; 1055#L235 assume test_~splverifierCounter~0 < 4; 1054#L236 test_~tmp~1 := test_#t~nondet25;havoc test_#t~nondet25; 1053#L244 assume !(0 != test_~tmp~1); 1051#L244-1 test_~tmp___0~0 := test_#t~nondet26;havoc test_#t~nondet26; 1050#L254 assume !(0 != test_~tmp___0~0); 1048#L254-1 test_~tmp___2~0 := test_#t~nondet27;havoc test_#t~nondet27; 1047#L264 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1038#L272-1 havoc __utac_acc__Specification5_spec__2_#t~ret31;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 1064#L157 __utac_acc__Specification5_spec__2_#t~ret31 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret31;havoc __utac_acc__Specification5_spec__2_#t~ret31; 1063#L447 assume !(0 != ~pumpRunning~0); 941#L72 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 1060#L104 assume !(0 != ~pumpRunning~0); 1057#L79 havoc __utac_acc__Specification5_spec__3_#t~ret32, __utac_acc__Specification5_spec__3_#t~ret33, __utac_acc__Specification5_spec__3_~tmp~3, __utac_acc__Specification5_spec__3_~tmp___0~1;havoc __utac_acc__Specification5_spec__3_~tmp~3;havoc __utac_acc__Specification5_spec__3_~tmp___0~1;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~9;havoc getWaterLevel_~retValue_acc~9;getWaterLevel_~retValue_acc~9 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~9; 975#L930 __utac_acc__Specification5_spec__3_#t~ret32 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~3 := __utac_acc__Specification5_spec__3_#t~ret32;havoc __utac_acc__Specification5_spec__3_#t~ret32; 976#L458 assume 2 != __utac_acc__Specification5_spec__3_~tmp~3;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~1;havoc isPumpRunning_~retValue_acc~1;isPumpRunning_~retValue_acc~1 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~1; 917#L157-1 __utac_acc__Specification5_spec__3_#t~ret33 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~1 := __utac_acc__Specification5_spec__3_#t~ret33;havoc __utac_acc__Specification5_spec__3_#t~ret33; 918#L462 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~1); 894#L458-1 [2021-10-28 23:29:37,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:37,028 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 23:29:37,028 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:37,028 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110438324] [2021-10-28 23:29:37,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:37,029 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:37,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,066 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:37,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,113 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:37,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:37,114 INFO L85 PathProgramCache]: Analyzing trace with hash -801866082, now seen corresponding path program 1 times [2021-10-28 23:29:37,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:37,114 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100621588] [2021-10-28 23:29:37,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:37,114 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:37,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,119 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:37,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,126 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:29:37,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:29:37,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1243110812, now seen corresponding path program 1 times [2021-10-28 23:29:37,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:29:37,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527663816] [2021-10-28 23:29:37,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:29:37,127 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:29:37,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,197 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:29:37,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:29:37,246 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:30:32,394 WARN L207 SmtUtils]: Spent 54.96 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 23:31:32,294 WARN L207 SmtUtils]: Spent 28.84 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 23:31:32,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:31:32 BoogieIcfgContainer [2021-10-28 23:31:32,392 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:31:32,393 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:31:32,393 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:31:32,393 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:31:32,394 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:29:35" (3/4) ... [2021-10-28 23:31:32,396 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:31:32,466 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:31:32,467 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:31:32,468 INFO L168 Benchmark]: Toolchain (without parser) took 118861.15 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 48.7 MB in the beginning and 64.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,469 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:31:32,470 INFO L168 Benchmark]: CACSL2BoogieTranslator took 514.19 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 48.5 MB in the beginning and 83.6 MB in the end (delta: -35.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,470 INFO L168 Benchmark]: Boogie Procedure Inliner took 88.89 ms. Allocated memory is still 117.4 MB. Free memory was 83.6 MB in the beginning and 80.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,471 INFO L168 Benchmark]: Boogie Preprocessor took 73.02 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 78.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:31:32,472 INFO L168 Benchmark]: RCFGBuilder took 913.45 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 93.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,472 INFO L168 Benchmark]: BuchiAutomizer took 117191.11 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 66.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,473 INFO L168 Benchmark]: Witness Printer took 74.17 ms. Allocated memory is still 117.4 MB. Free memory was 66.8 MB in the beginning and 64.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:31:32,477 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 86.0 MB. Free memory is still 66.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 514.19 ms. Allocated memory was 86.0 MB in the beginning and 117.4 MB in the end (delta: 31.5 MB). Free memory was 48.5 MB in the beginning and 83.6 MB in the end (delta: -35.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 88.89 ms. Allocated memory is still 117.4 MB. Free memory was 83.6 MB in the beginning and 80.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 73.02 ms. Allocated memory is still 117.4 MB. Free memory was 80.7 MB in the beginning and 78.5 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 913.45 ms. Allocated memory is still 117.4 MB. Free memory was 78.5 MB in the beginning and 93.2 MB in the end (delta: -14.7 MB). Peak memory consumption was 47.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 117191.11 ms. Allocated memory is still 117.4 MB. Free memory was 93.2 MB in the beginning and 66.8 MB in the end (delta: 26.4 MB). Peak memory consumption was 74.3 MB. Max. memory is 16.1 GB. * Witness Printer took 74.17 ms. Allocated memory is still 117.4 MB. Free memory was 66.8 MB in the beginning and 64.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 5 locations. The remainder module has 249 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 117.0s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 116.5s. 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 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 257 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 249 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 266 SDtfs, 446 SDslu, 539 SDs, 0 SdLazy, 92 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 234]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=21818} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=21823, NULL=21842, NULL=0, retValue_acc=0, NULL=21818, NULL=0, NULL=21840, NULL=21834, NULL=21843, NULL=21841, methaneLevelCritical=0, tmp=1, NULL=0, NULL=21833, NULL=0, tmp___1=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c449121=0, NULL=21825, cleanupTimeShifts=4, tmp=0, switchedOnBeforeTS=0, NULL=21821, \result=0, NULL=21835, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e360542=0, NULL=21822, NULL=0, NULL=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=21820, \result=1, NULL=21819, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e3fad09=0, NULL=21839, \result=0, tmp___0=0, NULL=21830, NULL=21829, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47fcc2e1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50696053=85, NULL=21844, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@245d3cc7=0, tmp=1, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3157d55d=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bca9d4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1b7e239c=0, NULL=0, retValue_acc=1, NULL=0, NULL=21838, NULL=21831, NULL=0, NULL=0, retValue_acc=1, NULL=21826, NULL=0, tmp___2=85, splverifierCounter=0, NULL=0, NULL=21827, NULL=21832, NULL=21836, tmp=0, head=0, retValue_acc=0, NULL=21828, NULL=0, NULL=0, NULL=21824, NULL=0, NULL=21845, NULL=21837, NULL=21846} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L60] int pumpRunning = 0; [L61] int systemActive = 1; [L293] int cleanupTimeShifts = 4; [L431] int switchedOnBeforeTS ; [L649] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L855] int waterLevel = 1; [L856] int methaneLevelCritical = 0; [L371] int retValue_acc ; [L372] int tmp ; [L420] int retValue_acc ; [L423] retValue_acc = 1 [L424] return (retValue_acc); [L378] tmp = valid_product() [L380] COND TRUE \read(tmp) [L436] switchedOnBeforeTS = 0 [L225] int splverifierCounter ; [L226] int tmp ; [L227] int tmp___0 ; [L228] int tmp___1 ; [L229] int tmp___2 ; [L232] splverifierCounter = 0 Loop: [L234] COND TRUE 1 [L236] COND TRUE splverifierCounter < 4 [L242] tmp = __VERIFIER_nondet_int() [L244] COND FALSE !(\read(tmp)) [L252] tmp___0 = __VERIFIER_nondet_int() [L254] COND FALSE !(\read(tmp___0)) [L262] tmp___2 = __VERIFIER_nondet_int() [L264] COND TRUE \read(tmp___2) [L216] systemActive = 1 [L153] int retValue_acc ; [L156] retValue_acc = pumpRunning [L157] return (retValue_acc); [L445] switchedOnBeforeTS = isPumpRunning() [L72] COND FALSE !(\read(pumpRunning)) [L79] COND TRUE \read(systemActive) [L101] int tmp ; [L104] COND FALSE !(\read(pumpRunning)) [L451] int tmp ; [L452] int tmp___0 ; [L926] int retValue_acc ; [L929] retValue_acc = waterLevel [L930] return (retValue_acc); [L456] tmp = getWaterLevel() [L458] COND TRUE tmp != 2 [L153] int retValue_acc ; [L156] retValue_acc = pumpRunning [L157] return (retValue_acc); [L460] tmp___0 = isPumpRunning() [L462] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:31:32,569 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2c01b660-2417-466f-bcdf-f65a38ec2437/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...