./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.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_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/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_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/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_52360fc0-5747-4777-bb22-212ae94c308f/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 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 23:22:42,152 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:22:42,154 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:22:42,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:22:42,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:22:42,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:22:42,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:22:42,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:22:42,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:22:42,211 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:22:42,213 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:22:42,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:22:42,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:22:42,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:22:42,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:22:42,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:22:42,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:22:42,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:22:42,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:22:42,232 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:22:42,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:22:42,252 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:22:42,254 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:22:42,256 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:22:42,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:22:42,267 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:22:42,268 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:22:42,269 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:22:42,270 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:22:42,272 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:22:42,272 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:22:42,274 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:22:42,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:22:42,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:22:42,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:22:42,278 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:22:42,279 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:22:42,279 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:22:42,280 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:22:42,281 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:22:42,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:22:42,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:22:42,345 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:22:42,345 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:22:42,346 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:22:42,346 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:22:42,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:22:42,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:22:42,349 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:22:42,349 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:22:42,349 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:22:42,350 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:22:42,350 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:22:42,350 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:22:42,350 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:22:42,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:22:42,351 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:22:42,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:22:42,352 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:22:42,352 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:22:42,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:22:42,353 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:22:42,353 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:22:42,353 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:22:42,354 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:22:42,354 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:22:42,354 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:22:42,354 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:22:42,355 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:22:42,355 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:22:42,355 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:22:42,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:22:42,356 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:22:42,357 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:22:42,358 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:22:42,358 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_52360fc0-5747-4777-bb22-212ae94c308f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 03daf3415808298ae6016bdc33e04662b3dd63f1cba0029f4033bbf040a042d2 [2021-10-28 23:22:42,746 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:22:42,782 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:22:42,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:22:42,787 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:22:42,789 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:22:42,790 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2021-10-28 23:22:42,895 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/data/dce854938/7f6bdd486b84470d89161adb37ade4bf/FLAG4d531abe5 [2021-10-28 23:22:43,571 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:22:43,572 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c [2021-10-28 23:22:43,591 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/data/dce854938/7f6bdd486b84470d89161adb37ade4bf/FLAG4d531abe5 [2021-10-28 23:22:43,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/data/dce854938/7f6bdd486b84470d89161adb37ade4bf [2021-10-28 23:22:43,813 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:22:43,814 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:22:43,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:43,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:22:43,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:22:43,829 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:43" (1/1) ... [2021-10-28 23:22:43,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6dd99743 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:43, skipping insertion in model container [2021-10-28 23:22:43,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:22:43" (1/1) ... [2021-10-28 23:22:43,841 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:22:43,889 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:22:44,339 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_52360fc0-5747-4777-bb22-212ae94c308f/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c[17338,17351] [2021-10-28 23:22:44,351 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:44,364 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:22:44,452 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_52360fc0-5747-4777-bb22-212ae94c308f/sv-benchmarks/c/product-lines/minepump_spec4_product56.cil.c[17338,17351] [2021-10-28 23:22:44,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:22:44,499 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:22:44,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44 WrapperNode [2021-10-28 23:22:44,500 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:22:44,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:22:44,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:22:44,502 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:22:44,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:22:44,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:22:44,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:22:44,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:22:44,653 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,680 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,720 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,764 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,780 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:22:44,781 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:22:44,781 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:22:44,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:22:44,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (1/1) ... [2021-10-28 23:22:44,810 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:22:44,825 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:22:44,847 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:22:44,878 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:22:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:22:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:22:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:22:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:22:46,253 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:22:46,253 INFO L299 CfgBuilder]: Removed 282 assume(true) statements. [2021-10-28 23:22:46,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:46 BoogieIcfgContainer [2021-10-28 23:22:46,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:22:46,258 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:22:46,258 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:22:46,263 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:22:46,264 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:22:46,265 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:22:43" (1/3) ... [2021-10-28 23:22:46,267 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@553713f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:22:46, skipping insertion in model container [2021-10-28 23:22:46,267 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:22:46,267 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:22:44" (2/3) ... [2021-10-28 23:22:46,268 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@553713f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:22:46, skipping insertion in model container [2021-10-28 23:22:46,269 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:22:46,269 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:46" (3/3) ... [2021-10-28 23:22:46,271 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product56.cil.c [2021-10-28 23:22:46,334 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:22:46,335 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:22:46,335 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:22:46,335 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:22:46,335 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:22:46,335 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:22:46,336 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:22:46,336 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:22:46,360 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.5401069518716577) internal successors, (288), 187 states have internal predecessors, (288), 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 23:22:46,400 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-28 23:22:46,401 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:46,401 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:46,411 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:22:46,411 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:46,411 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:22:46,413 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 188 states, 187 states have (on average 1.5401069518716577) internal successors, (288), 187 states have internal predecessors, (288), 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 23:22:46,425 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 123 [2021-10-28 23:22:46,425 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:46,425 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:46,427 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:22:46,427 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:46,433 INFO L791 eck$LassoCheckResult]: Stem: 169#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 55#L-1true havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 133#L1008true havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 17#L1016true main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 151#L860true assume 0 != main_~tmp~10; 160#L834true havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 187#L757-1true [2021-10-28 23:22:46,434 INFO L793 eck$LassoCheckResult]: Loop: 187#L757-1true assume !false; 110#L689true assume test_~splverifierCounter~0 < 4; 76#L690true test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 135#L698true assume !(0 != test_~tmp~8); 132#L698-1true test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 13#L708true assume !(0 != test_~tmp___0~2); 35#L708-1true test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 123#L718true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 113#L726-1true assume !(0 != ~pumpRunning~0); 96#L70true assume !(0 != ~systemActive~0); 104#L77true havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 161#L958true __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 83#L757true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 187#L757-1true [2021-10-28 23:22:46,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:46,442 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:22:46,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:46,463 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781982895] [2021-10-28 23:22:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:46,465 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:46,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:46,892 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:47,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:47,178 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:47,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:47,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1666938228, now seen corresponding path program 1 times [2021-10-28 23:22:47,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:47,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154545229] [2021-10-28 23:22:47,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:47,183 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:47,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:47,287 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 23:22:47,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:47,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154545229] [2021-10-28 23:22:47,290 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154545229] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:47,290 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:47,290 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:22:47,292 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418359742] [2021-10-28 23:22:47,298 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:22:47,301 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:47,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:22:47,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:22:47,323 INFO L87 Difference]: Start difference. First operand has 188 states, 187 states have (on average 1.5401069518716577) internal successors, (288), 187 states have internal predecessors, (288), 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 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 23:22:47,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:47,463 INFO L93 Difference]: Finished difference Result 370 states and 552 transitions. [2021-10-28 23:22:47,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:22:47,467 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 370 states and 552 transitions. [2021-10-28 23:22:47,483 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 242 [2021-10-28 23:22:47,505 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 370 states to 356 states and 537 transitions. [2021-10-28 23:22:47,511 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 356 [2021-10-28 23:22:47,517 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 356 [2021-10-28 23:22:47,519 INFO L73 IsDeterministic]: Start isDeterministic. Operand 356 states and 537 transitions. [2021-10-28 23:22:47,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:22:47,529 INFO L681 BuchiCegarLoop]: Abstraction has 356 states and 537 transitions. [2021-10-28 23:22:47,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states and 537 transitions. [2021-10-28 23:22:47,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 354. [2021-10-28 23:22:47,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 354 states, 354 states have (on average 1.5084745762711864) internal successors, (534), 353 states have internal predecessors, (534), 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 23:22:47,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 354 states to 354 states and 534 transitions. [2021-10-28 23:22:47,602 INFO L704 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2021-10-28 23:22:47,603 INFO L587 BuchiCegarLoop]: Abstraction has 354 states and 534 transitions. [2021-10-28 23:22:47,603 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:22:47,603 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 354 states and 534 transitions. [2021-10-28 23:22:47,609 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 240 [2021-10-28 23:22:47,610 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:47,610 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:47,611 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:22:47,611 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 23:22:47,612 INFO L791 eck$LassoCheckResult]: Stem: 780#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 658#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 659#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 595#L1016 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 596#L860 assume 0 != main_~tmp~10; 766#L834 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 696#L757-1 [2021-10-28 23:22:47,612 INFO L793 eck$LassoCheckResult]: Loop: 696#L757-1 assume !false; 727#L689 assume test_~splverifierCounter~0 < 4; 728#L690 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 753#L698 assume !(0 != test_~tmp~8); 755#L698-1 test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 799#L708 assume !(0 != test_~tmp___0~2); 797#L708-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 737#L718 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 729#L726-1 assume !(0 != ~pumpRunning~0); 580#L70 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 712#L154 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 742#L128-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 804#L102-3 assume !(0 == ~pumpRunning~0); 721#L77 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 722#L958 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 695#L757 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 696#L757-1 [2021-10-28 23:22:47,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:47,613 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:22:47,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:47,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104206621] [2021-10-28 23:22:47,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:47,615 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:47,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:47,676 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:47,752 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:47,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:47,753 INFO L85 PathProgramCache]: Analyzing trace with hash 558894454, now seen corresponding path program 1 times [2021-10-28 23:22:47,754 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:47,754 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261403816] [2021-10-28 23:22:47,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:47,755 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:22:47,814 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 23:22:47,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:22:47,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261403816] [2021-10-28 23:22:47,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261403816] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:22:47,816 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:22:47,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:22:47,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167819498] [2021-10-28 23:22:47,817 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:22:47,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:22:47,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:22:47,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:22:47,819 INFO L87 Difference]: Start difference. First operand 354 states and 534 transitions. cyclomatic complexity: 183 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23:22:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:22:47,975 INFO L93 Difference]: Finished difference Result 365 states and 514 transitions. [2021-10-28 23:22:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:22:47,977 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 365 states and 514 transitions. [2021-10-28 23:22:47,989 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-10-28 23:22:47,999 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 365 states to 365 states and 514 transitions. [2021-10-28 23:22:48,000 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 365 [2021-10-28 23:22:48,001 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 365 [2021-10-28 23:22:48,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 365 states and 514 transitions. [2021-10-28 23:22:48,007 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:22:48,007 INFO L681 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2021-10-28 23:22:48,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states and 514 transitions. [2021-10-28 23:22:48,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2021-10-28 23:22:48,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 365 states have (on average 1.4082191780821918) internal successors, (514), 364 states have internal predecessors, (514), 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 23:22:48,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 514 transitions. [2021-10-28 23:22:48,063 INFO L704 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2021-10-28 23:22:48,064 INFO L587 BuchiCegarLoop]: Abstraction has 365 states and 514 transitions. [2021-10-28 23:22:48,064 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:22:48,064 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 365 states and 514 transitions. [2021-10-28 23:22:48,070 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 255 [2021-10-28 23:22:48,070 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:22:48,070 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:22:48,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:22:48,073 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:22:48,074 INFO L791 eck$LassoCheckResult]: Stem: 1468#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~string12.base, #t~string12.offset := #Ultimate.allocOnStack(13);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(110, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(102, #t~string16.base, 2 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 3 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string18.base, #t~string18.offset, 1);call write~init~int(80, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(117, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(109, #t~string18.base, 3 + #t~string18.offset, 1);call write~init~int(112, #t~string18.base, 4 + #t~string18.offset, 1);call write~init~int(58, #t~string18.base, 5 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 6 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string20.base, #t~string20.offset, 1);call write~init~int(110, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 2 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(102, #t~string22.base, 2 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 3 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string24.base, #t~string24.offset, 1);call write~init~int(32, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 2 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string26.base, #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 1 + #t~string26.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(21);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(30);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(9);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(21);call #t~string56.base, #t~string56.offset := #Ultimate.allocOnStack(30);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(9);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(25);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(30);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(9);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(25);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(13);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string74.base, #t~string74.offset, 1);call write~init~int(77, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(101, #t~string74.base, 2 + #t~string74.offset, 1);call write~init~int(116, #t~string74.base, 3 + #t~string74.offset, 1);call write~init~int(104, #t~string74.base, 4 + #t~string74.offset, 1);call write~init~int(58, #t~string74.base, 5 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 6 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string76.base, #t~string76.offset, 1);call write~init~int(82, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(73, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(84, #t~string76.base, 3 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 4 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string78.base, #t~string78.offset, 1);call write~init~int(75, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1370#L-1 havoc main_#res;havoc main_#t~ret70, main_~retValue_acc~7, main_~tmp~10;havoc main_~retValue_acc~7;havoc main_~tmp~10; 1371#L1008 havoc valid_product_#res;havoc valid_product_~retValue_acc~13;havoc valid_product_~retValue_acc~13;valid_product_~retValue_acc~13 := 1;valid_product_#res := valid_product_~retValue_acc~13; 1321#L1016 main_#t~ret70 := valid_product_#res;main_~tmp~10 := main_#t~ret70;havoc main_#t~ret70; 1322#L860 assume 0 != main_~tmp~10; 1455#L834 havoc test_#t~nondet64, test_#t~nondet65, test_#t~nondet66, test_#t~nondet67, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1463#L757-1 [2021-10-28 23:22:48,074 INFO L793 eck$LassoCheckResult]: Loop: 1463#L757-1 assume !false; 1587#L689 assume test_~splverifierCounter~0 < 4; 1588#L690 test_~tmp~8 := test_#t~nondet64;havoc test_#t~nondet64; 1656#L698 assume !(0 != test_~tmp~8); 1654#L698-1 test_~tmp___0~2 := test_#t~nondet65;havoc test_#t~nondet65; 1653#L708 assume !(0 != test_~tmp___0~2); 1651#L708-1 test_~tmp___2~0 := test_#t~nondet66;havoc test_#t~nondet66; 1650#L718 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1426#L726-1 assume !(0 != ~pumpRunning~0); 1410#L70 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret9, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 1411#L154 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__lowWaterSensor_#t~ret8, processEnvironment__wrappee__lowWaterSensor_~tmp~1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~1; 1526#L128-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret7, processEnvironment__wrappee__highWaterSensor_~tmp~0;havoc processEnvironment__wrappee__highWaterSensor_~tmp~0; 1403#L102-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret27, isHighWaterLevel_~retValue_acc~2, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~0;havoc isHighWaterLevel_~retValue_acc~2;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~0;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~10;havoc isHighWaterSensorDry_~retValue_acc~10; 1341#L966-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~10 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~10; 1342#L971-3 isHighWaterLevel_#t~ret27 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret27;havoc isHighWaterLevel_#t~ret27; 1367#L256-9 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~0 := 0; 1512#L256-11 isHighWaterLevel_~retValue_acc~2 := isHighWaterLevel_~tmp___0~0;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~2; 1510#L262-3 processEnvironment__wrappee__highWaterSensor_#t~ret7 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~0 := processEnvironment__wrappee__highWaterSensor_#t~ret7;havoc processEnvironment__wrappee__highWaterSensor_#t~ret7; 1301#L106-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~0); 1303#L77 havoc __utac_acc__Specification4_spec__1_#t~ret68, __utac_acc__Specification4_spec__1_#t~ret69, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~3;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~3;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; 1592#L958 __utac_acc__Specification4_spec__1_#t~ret68 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret68;havoc __utac_acc__Specification4_spec__1_#t~ret68; 1590#L757 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 1463#L757-1 [2021-10-28 23:22:48,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:48,076 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:22:48,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:48,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [310978240] [2021-10-28 23:22:48,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:48,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:48,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,162 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,244 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:48,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:48,245 INFO L85 PathProgramCache]: Analyzing trace with hash 222495874, now seen corresponding path program 1 times [2021-10-28 23:22:48,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:48,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763188847] [2021-10-28 23:22:48,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:48,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:48,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,265 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:48,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:22:48,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:22:48,283 INFO L85 PathProgramCache]: Analyzing trace with hash 1475801000, now seen corresponding path program 1 times [2021-10-28 23:22:48,283 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:22:48,284 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351476992] [2021-10-28 23:22:48,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:22:48,284 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:22:48,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,356 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:22:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:22:48,408 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:23:59,321 WARN L207 SmtUtils]: Spent 1.18 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:25:05,701 WARN L207 SmtUtils]: Spent 30.84 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:25:05,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:25:05 BoogieIcfgContainer [2021-10-28 23:25:05,900 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:25:05,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:25:05,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:25:05,901 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:25:05,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:22:46" (3/4) ... [2021-10-28 23:25:05,908 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:25:05,982 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:25:05,986 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:25:05,988 INFO L168 Benchmark]: Toolchain (without parser) took 142173.15 ms. Allocated memory was 92.3 MB in the beginning and 151.0 MB in the end (delta: 58.7 MB). Free memory was 57.0 MB in the beginning and 85.2 MB in the end (delta: -28.2 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,988 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:25:05,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 675.90 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.0 MB in the beginning and 79.7 MB in the end (delta: -22.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,990 INFO L168 Benchmark]: Boogie Procedure Inliner took 137.59 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 74.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,990 INFO L168 Benchmark]: Boogie Preprocessor took 139.97 ms. Allocated memory is still 111.1 MB. Free memory was 74.9 MB in the beginning and 71.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,991 INFO L168 Benchmark]: RCFGBuilder took 1475.89 ms. Allocated memory is still 111.1 MB. Free memory was 71.4 MB in the beginning and 78.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,991 INFO L168 Benchmark]: BuchiAutomizer took 139642.06 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 78.2 MB in the beginning and 87.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 86.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,992 INFO L168 Benchmark]: Witness Printer took 85.95 ms. Allocated memory is still 151.0 MB. Free memory was 87.3 MB in the beginning and 85.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:25:05,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 92.3 MB. Free memory was 63.1 MB in the beginning and 63.0 MB in the end (delta: 29.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 675.90 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 57.0 MB in the beginning and 79.7 MB in the end (delta: -22.7 MB). Peak memory consumption was 10.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 137.59 ms. Allocated memory is still 111.1 MB. Free memory was 79.7 MB in the beginning and 74.9 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 139.97 ms. Allocated memory is still 111.1 MB. Free memory was 74.9 MB in the beginning and 71.4 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1475.89 ms. Allocated memory is still 111.1 MB. Free memory was 71.4 MB in the beginning and 78.2 MB in the end (delta: -6.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 139642.06 ms. Allocated memory was 111.1 MB in the beginning and 151.0 MB in the end (delta: 39.8 MB). Free memory was 78.2 MB in the beginning and 87.3 MB in the end (delta: -9.1 MB). Peak memory consumption was 86.6 MB. Max. memory is 16.1 GB. * Witness Printer took 85.95 ms. Allocated memory is still 151.0 MB. Free memory was 87.3 MB in the beginning and 85.2 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 3 locations. The remainder module has 365 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 139.5s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 138.8s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 365 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 480 SDtfs, 411 SDslu, 344 SDs, 0 SdLazy, 53 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 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: 688]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=5412} State at position 1 is {NULL=0, NULL=5412, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@741b898b=0, retValue_acc=1, methaneLevelCritical=0, NULL=5440, retValue_acc=0, tmp=0, tmp___1=0, NULL=0, NULL=5416, cleanupTimeShifts=4, NULL=5432, tmp=1, waterLevel=1, NULL=5424, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c305a1c=0, NULL=5425, \result=1, head=0, pumpRunning=0, NULL=5423, NULL=5438, \result=1, NULL=0, NULL=5434, NULL=0, tmp=1, NULL=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25842e48=0, NULL=0, tmp___0=0, tmp=1, NULL=5419, NULL=5426, NULL=5435, tmp=0, head=0, NULL=0, NULL=5433, NULL=0, NULL=0, retValue_acc=0, NULL=5427, NULL=5422, tmp=0, NULL=0, tmp___0=0, NULL=5436, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fc8368a=0, NULL=0, tmp=0, NULL=5413, tmp___0=0, NULL=0, systemActive=1, \result=1, NULL=0, NULL=5431, \result=0, NULL=5418, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, NULL=5439, NULL=5428, NULL=5429, \result=0, NULL=5421, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5658482c=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ee575=68, NULL=5414, NULL=5415, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30b0e34e=0, NULL=5417, tmp___2=68, retValue_acc=1, splverifierCounter=0, NULL=0, NULL=0, NULL=5430, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b14de57=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f93b17f=0, NULL=0, NULL=0, NULL=5437, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f7303a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@489e4fa3=0, NULL=0, NULL=5420} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L62] int pumpRunning = 0; [L63] int systemActive = 1; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L775] int cleanupTimeShifts = 4; [L883] int waterLevel = 1; [L884] int methaneLevelCritical = 0; [L851] int retValue_acc ; [L852] int tmp ; [L1012] int retValue_acc ; [L1015] retValue_acc = 1 [L1016] return (retValue_acc); [L858] tmp = valid_product() [L860] COND TRUE \read(tmp) [L679] int splverifierCounter ; [L680] int tmp ; [L681] int tmp___0 ; [L682] int tmp___1 ; [L683] int tmp___2 ; [L686] splverifierCounter = 0 Loop: [L688] COND TRUE 1 [L690] COND TRUE splverifierCounter < 4 [L696] tmp = __VERIFIER_nondet_int() [L698] COND FALSE !(\read(tmp)) [L706] tmp___0 = __VERIFIER_nondet_int() [L708] COND FALSE !(\read(tmp___0)) [L716] tmp___2 = __VERIFIER_nondet_int() [L718] COND TRUE \read(tmp___2) [L304] systemActive = 1 [L70] COND FALSE !(\read(pumpRunning)) [L77] COND TRUE \read(systemActive) [L151] int tmp ; [L154] COND FALSE !(\read(pumpRunning)) [L125] int tmp ; [L128] COND FALSE !(\read(pumpRunning)) [L99] int tmp ; [L102] COND TRUE ! pumpRunning [L248] int retValue_acc ; [L249] int tmp ; [L250] int tmp___0 ; [L963] int retValue_acc ; [L966] COND TRUE waterLevel < 2 [L967] retValue_acc = 1 [L968] return (retValue_acc); [L254] tmp = isHighWaterSensorDry() [L256] COND TRUE \read(tmp) [L257] tmp___0 = 0 [L261] retValue_acc = tmp___0 [L262] return (retValue_acc); [L104] tmp = isHighWaterLevel() [L106] COND FALSE !(\read(tmp)) [L750] int tmp ; [L751] int tmp___0 ; [L954] int retValue_acc ; [L957] retValue_acc = waterLevel [L958] return (retValue_acc); [L755] tmp = getWaterLevel() [L757] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:25:06,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52360fc0-5747-4777-bb22-212ae94c308f/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...