./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt --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 a73dafdc853fd09794b169fd90326076ad938e4b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-4e77c04 [2021-10-12 23:59:02,257 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-12 23:59:02,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-12 23:59:02,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-12 23:59:02,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-12 23:59:02,304 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-12 23:59:02,306 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-12 23:59:02,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-12 23:59:02,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-12 23:59:02,313 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-12 23:59:02,314 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-12 23:59:02,316 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-12 23:59:02,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-12 23:59:02,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-12 23:59:02,320 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-12 23:59:02,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-12 23:59:02,322 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-12 23:59:02,324 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-12 23:59:02,326 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-12 23:59:02,329 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-12 23:59:02,331 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-12 23:59:02,336 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-12 23:59:02,338 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-12 23:59:02,339 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-12 23:59:02,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-12 23:59:02,343 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-12 23:59:02,343 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-12 23:59:02,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-12 23:59:02,345 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-12 23:59:02,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-12 23:59:02,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-12 23:59:02,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-12 23:59:02,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-12 23:59:02,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-12 23:59:02,352 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-12 23:59:02,352 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-12 23:59:02,353 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-12 23:59:02,353 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-12 23:59:02,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-12 23:59:02,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-12 23:59:02,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-12 23:59:02,357 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-12 23:59:02,382 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-12 23:59:02,382 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-12 23:59:02,383 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-12 23:59:02,383 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-12 23:59:02,384 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-12 23:59:02,384 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-12 23:59:02,385 INFO L138 SettingsManager]: * Use SBE=true [2021-10-12 23:59:02,385 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-12 23:59:02,385 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-12 23:59:02,385 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-12 23:59:02,386 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-12 23:59:02,386 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-12 23:59:02,386 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-12 23:59:02,386 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-12 23:59:02,387 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-12 23:59:02,387 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-12 23:59:02,387 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-12 23:59:02,387 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-12 23:59:02,387 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-12 23:59:02,388 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-12 23:59:02,388 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-12 23:59:02,388 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-12 23:59:02,388 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-12 23:59:02,389 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-12 23:59:02,389 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-12 23:59:02,389 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-12 23:59:02,389 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-12 23:59:02,390 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-12 23:59:02,390 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-12 23:59:02,390 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-12 23:59:02,390 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-12 23:59:02,391 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-12 23:59:02,392 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-12 23:59:02,392 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_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a73dafdc853fd09794b169fd90326076ad938e4b [2021-10-12 23:59:02,716 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-12 23:59:02,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-12 23:59:02,746 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-12 23:59:02,747 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-12 23:59:02,749 INFO L275 PluginConnector]: CDTParser initialized [2021-10-12 23:59:02,750 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-10-12 23:59:02,825 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/data/7cdf5a77d/155580d1829e437f94ff5de906e9be6b/FLAG7d9ba6329 [2021-10-12 23:59:03,424 INFO L306 CDTParser]: Found 1 translation units. [2021-10-12 23:59:03,425 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c [2021-10-12 23:59:03,437 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/data/7cdf5a77d/155580d1829e437f94ff5de906e9be6b/FLAG7d9ba6329 [2021-10-12 23:59:03,710 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/data/7cdf5a77d/155580d1829e437f94ff5de906e9be6b [2021-10-12 23:59:03,717 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-12 23:59:03,718 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-12 23:59:03,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:03,721 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-12 23:59:03,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-12 23:59:03,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:03" (1/1) ... [2021-10-12 23:59:03,726 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52499601 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:03, skipping insertion in model container [2021-10-12 23:59:03,727 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 11:59:03" (1/1) ... [2021-10-12 23:59:03,735 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-12 23:59:03,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-12 23:59:04,093 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_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[12686,12699] [2021-10-12 23:59:04,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:04,159 INFO L203 MainTranslator]: Completed pre-run [2021-10-12 23:59:04,244 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_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/sv-benchmarks/c/product-lines/minepump_spec4_product50.cil.c[12686,12699] [2021-10-12 23:59:04,262 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-12 23:59:04,281 INFO L208 MainTranslator]: Completed translation [2021-10-12 23:59:04,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04 WrapperNode [2021-10-12 23:59:04,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-12 23:59:04,283 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:04,283 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-12 23:59:04,283 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-12 23:59:04,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,320 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,380 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-12 23:59:04,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-12 23:59:04,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-12 23:59:04,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-12 23:59:04,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,394 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,394 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,406 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,414 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,416 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,420 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-12 23:59:04,421 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-12 23:59:04,421 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-12 23:59:04,422 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-12 23:59:04,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (1/1) ... [2021-10-12 23:59:04,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-12 23:59:04,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-12 23:59:04,475 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-12 23:59:04,508 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-12 23:59:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-12 23:59:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-12 23:59:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-12 23:59:04,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-12 23:59:05,694 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-12 23:59:05,694 INFO L299 CfgBuilder]: Removed 158 assume(true) statements. [2021-10-12 23:59:05,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:05 BoogieIcfgContainer [2021-10-12 23:59:05,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-12 23:59:05,698 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-12 23:59:05,698 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-12 23:59:05,702 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-12 23:59:05,703 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:05,703 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 12.10 11:59:03" (1/3) ... [2021-10-12 23:59:05,705 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d5d5818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:05, skipping insertion in model container [2021-10-12 23:59:05,705 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:05,705 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 11:59:04" (2/3) ... [2021-10-12 23:59:05,706 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3d5d5818 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 12.10 11:59:05, skipping insertion in model container [2021-10-12 23:59:05,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-12 23:59:05,707 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:05" (3/3) ... [2021-10-12 23:59:05,709 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product50.cil.c [2021-10-12 23:59:05,775 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-12 23:59:05,775 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-12 23:59:05,775 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-12 23:59:05,775 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-12 23:59:05,775 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-12 23:59:05,776 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-12 23:59:05,776 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-12 23:59:05,776 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-12 23:59:05,806 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-12 23:59:05,832 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-12 23:59:05,833 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:05,833 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:05,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-12 23:59:05,842 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:05,842 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-12 23:59:05,843 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-12 23:59:05,850 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2021-10-12 23:59:05,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:05,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:05,852 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-12 23:59:05,852 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:05,857 INFO L791 eck$LassoCheckResult]: Stem: 104#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 38#L-1true havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 91#L572true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 3#L580true main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 77#L527true assume 0 != main_~tmp~4; 100#L500true havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 111#L419-1true [2021-10-12 23:59:05,858 INFO L793 eck$LassoCheckResult]: Loop: 111#L419-1true assume !false; 99#L912true assume test_~splverifierCounter~0 < 4; 102#L913true test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 94#L921true assume !(0 != test_~tmp~9); 76#L921-1true test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 7#L931true assume !(0 != test_~tmp___0~3); 107#L931-1true test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 89#L941true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 28#L949-2true assume !(0 != ~pumpRunning~0); 11#L703true assume !(0 != ~systemActive~0); 60#L710true havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 74#L665true __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 6#L419true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 111#L419-1true [2021-10-12 23:59:05,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:05,865 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-12 23:59:05,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:05,875 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568870701] [2021-10-12 23:59:05,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:05,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:06,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:06,158 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:06,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:06,344 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:06,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:06,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1678820861, now seen corresponding path program 1 times [2021-10-12 23:59:06,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:06,370 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141918630] [2021-10-12 23:59:06,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:06,371 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:06,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:06,457 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:06,457 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141918630] [2021-10-12 23:59:06,458 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141918630] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:06,458 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:06,459 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-12 23:59:06,459 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046387293] [2021-10-12 23:59:06,465 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-12 23:59:06,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:06,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-12 23:59:06,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-12 23:59:06,489 INFO L87 Difference]: Start difference. First operand has 114 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 113 states have internal predecessors, (174), 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) [2021-10-12 23:59:06,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:06,556 INFO L93 Difference]: Finished difference Result 114 states and 164 transitions. [2021-10-12 23:59:06,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-12 23:59:06,559 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 114 states and 164 transitions. [2021-10-12 23:59:06,568 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-12 23:59:06,576 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 114 states to 107 states and 156 transitions. [2021-10-12 23:59:06,578 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 107 [2021-10-12 23:59:06,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 107 [2021-10-12 23:59:06,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 107 states and 156 transitions. [2021-10-12 23:59:06,582 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-12 23:59:06,583 INFO L681 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-12 23:59:06,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states and 156 transitions. [2021-10-12 23:59:06,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-10-12 23:59:06,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 107 states have (on average 1.4579439252336448) internal successors, (156), 106 states have internal predecessors, (156), 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) [2021-10-12 23:59:06,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 156 transitions. [2021-10-12 23:59:06,625 INFO L704 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-12 23:59:06,625 INFO L587 BuchiCegarLoop]: Abstraction has 107 states and 156 transitions. [2021-10-12 23:59:06,625 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-12 23:59:06,625 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 107 states and 156 transitions. [2021-10-12 23:59:06,628 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-12 23:59:06,629 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:06,629 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:06,630 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-12 23:59:06,630 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:06,631 INFO L791 eck$LassoCheckResult]: Stem: 343#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 300#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 301#L572 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 237#L580 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 238#L527 assume 0 != main_~tmp~4; 332#L500 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 242#L419-1 [2021-10-12 23:59:06,632 INFO L793 eck$LassoCheckResult]: Loop: 242#L419-1 assume !false; 340#L912 assume test_~splverifierCounter~0 < 4; 341#L913 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 338#L921 assume !(0 != test_~tmp~9); 323#L921-1 test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 244#L931 assume !(0 != test_~tmp___0~3); 245#L931-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 337#L941 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 284#L949-2 assume !(0 != ~pumpRunning~0); 254#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 255#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 317#L735-1 assume !(0 == ~pumpRunning~0); 240#L710 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 321#L665 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 241#L419 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 242#L419-1 [2021-10-12 23:59:06,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:06,633 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-12 23:59:06,633 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:06,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234326340] [2021-10-12 23:59:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:06,634 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:06,742 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:06,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:06,844 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:06,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:06,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1079829887, now seen corresponding path program 1 times [2021-10-12 23:59:06,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:06,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086161718] [2021-10-12 23:59:06,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:06,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:06,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-12 23:59:06,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-12 23:59:06,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-12 23:59:06,877 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086161718] [2021-10-12 23:59:06,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086161718] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-12 23:59:06,881 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-12 23:59:06,881 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-12 23:59:06,881 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130302917] [2021-10-12 23:59:06,882 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-12 23:59:06,884 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-12 23:59:06,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-12 23:59:06,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-12 23:59:06,885 INFO L87 Difference]: Start difference. First operand 107 states and 156 transitions. cyclomatic complexity: 51 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) [2021-10-12 23:59:07,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-12 23:59:07,034 INFO L93 Difference]: Finished difference Result 148 states and 204 transitions. [2021-10-12 23:59:07,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-12 23:59:07,038 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 148 states and 204 transitions. [2021-10-12 23:59:07,040 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-12 23:59:07,046 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 148 states to 148 states and 204 transitions. [2021-10-12 23:59:07,047 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 148 [2021-10-12 23:59:07,048 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 148 [2021-10-12 23:59:07,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 148 states and 204 transitions. [2021-10-12 23:59:07,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-12 23:59:07,050 INFO L681 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-12 23:59:07,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states and 204 transitions. [2021-10-12 23:59:07,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2021-10-12 23:59:07,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 148 states have (on average 1.3783783783783783) internal successors, (204), 147 states have internal predecessors, (204), 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) [2021-10-12 23:59:07,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 204 transitions. [2021-10-12 23:59:07,068 INFO L704 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-12 23:59:07,068 INFO L587 BuchiCegarLoop]: Abstraction has 148 states and 204 transitions. [2021-10-12 23:59:07,069 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-12 23:59:07,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 148 states and 204 transitions. [2021-10-12 23:59:07,071 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-12 23:59:07,071 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-12 23:59:07,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-12 23:59:07,073 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-12 23:59:07,074 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-12 23:59:07,074 INFO L791 eck$LassoCheckResult]: Stem: 610#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 563#L-1 havoc main_#res;havoc main_#t~ret44, main_~retValue_acc~3, main_~tmp~4;havoc main_~retValue_acc~3;havoc main_~tmp~4; 564#L572 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 498#L580 main_#t~ret44 := valid_product_#res;main_~tmp~4 := main_#t~ret44;havoc main_#t~ret44; 499#L527 assume 0 != main_~tmp~4; 597#L500 havoc test_#t~nondet77, test_#t~nondet78, test_#t~nondet79, test_#t~nondet80, test_~splverifierCounter~0, test_~tmp~9, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~9;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 504#L419-1 [2021-10-12 23:59:07,074 INFO L793 eck$LassoCheckResult]: Loop: 504#L419-1 assume !false; 607#L912 assume test_~splverifierCounter~0 < 4; 608#L913 test_~tmp~9 := test_#t~nondet77;havoc test_#t~nondet77; 603#L921 assume !(0 != test_~tmp~9); 587#L921-1 test_~tmp___0~3 := test_#t~nondet78;havoc test_#t~nondet78; 506#L931 assume !(0 != test_~tmp___0~3); 507#L931-1 test_~tmp___2~0 := test_#t~nondet79;havoc test_#t~nondet79; 602#L941 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 546#L949-2 assume !(0 != ~pumpRunning~0); 515#L703 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 516#L761 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret56, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 581#L735-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~7, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~7;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 582#L673-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 583#L678-1 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~7 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 543#L863-3 assume 0 != isHighWaterLevel_~tmp~7;isHighWaterLevel_~tmp___0~1 := 0; 537#L863-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 538#L869-1 processEnvironment__wrappee__highWaterSensor_#t~ret56 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret56;havoc processEnvironment__wrappee__highWaterSensor_#t~ret56; 606#L739-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 501#L710 havoc __utac_acc__Specification4_spec__1_#t~ret42, __utac_acc__Specification4_spec__1_#t~ret43, __utac_acc__Specification4_spec__1_~tmp~3, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~3;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~7;havoc getWaterLevel_~retValue_acc~7;getWaterLevel_~retValue_acc~7 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~7; 585#L665 __utac_acc__Specification4_spec__1_#t~ret42 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~3 := __utac_acc__Specification4_spec__1_#t~ret42;havoc __utac_acc__Specification4_spec__1_#t~ret42; 503#L419 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~3); 504#L419-1 [2021-10-12 23:59:07,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:07,076 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-12 23:59:07,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:07,077 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15144972] [2021-10-12 23:59:07,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:07,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,149 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:07,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,248 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:07,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:07,249 INFO L82 PathProgramCache]: Analyzing trace with hash -246413043, now seen corresponding path program 1 times [2021-10-12 23:59:07,249 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:07,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127646385] [2021-10-12 23:59:07,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:07,250 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,270 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,279 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-12 23:59:07,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-12 23:59:07,280 INFO L82 PathProgramCache]: Analyzing trace with hash 209658151, now seen corresponding path program 1 times [2021-10-12 23:59:07,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-12 23:59:07,281 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701835528] [2021-10-12 23:59:07,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-12 23:59:07,282 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-12 23:59:07,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,326 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-12 23:59:07,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-12 23:59:07,383 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:00:16,074 WARN L207 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:01:36,957 WARN L207 SmtUtils]: Spent 38.17 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:01:37,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:01:37 BoogieIcfgContainer [2021-10-13 00:01:37,109 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:01:37,110 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:01:37,110 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:01:37,110 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:01:37,111 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 11:59:05" (3/4) ... [2021-10-13 00:01:37,114 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:01:37,199 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:01:37,199 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:01:37,201 INFO L168 Benchmark]: Toolchain (without parser) took 153481.85 ms. Allocated memory was 100.7 MB in the beginning and 165.7 MB in the end (delta: 65.0 MB). Free memory was 59.8 MB in the beginning and 58.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 65.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,202 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:01:37,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 561.76 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 66.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,204 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.16 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 63.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,204 INFO L168 Benchmark]: Boogie Preprocessor took 39.69 ms. Allocated memory is still 100.7 MB. Free memory was 63.5 MB in the beginning and 61.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,206 INFO L168 Benchmark]: RCFGBuilder took 1275.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 61.0 MB in the beginning and 83.9 MB in the end (delta: -22.8 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,207 INFO L168 Benchmark]: BuchiAutomizer took 151411.35 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 83.1 MB in the beginning and 61.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,208 INFO L168 Benchmark]: Witness Printer took 89.84 ms. Allocated memory is still 165.7 MB. Free memory was 61.8 MB in the beginning and 58.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:01:37,213 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 100.7 MB. Free memory is still 77.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 561.76 ms. Allocated memory is still 100.7 MB. Free memory was 59.6 MB in the beginning and 66.9 MB in the end (delta: -7.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 97.16 ms. Allocated memory is still 100.7 MB. Free memory was 66.9 MB in the beginning and 63.5 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 39.69 ms. Allocated memory is still 100.7 MB. Free memory was 63.5 MB in the beginning and 61.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1275.52 ms. Allocated memory was 100.7 MB in the beginning and 123.7 MB in the end (delta: 23.1 MB). Free memory was 61.0 MB in the beginning and 83.9 MB in the end (delta: -22.8 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 151411.35 ms. Allocated memory was 123.7 MB in the beginning and 165.7 MB in the end (delta: 41.9 MB). Free memory was 83.1 MB in the beginning and 61.8 MB in the end (delta: 21.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 16.1 GB. * Witness Printer took 89.84 ms. Allocated memory is still 165.7 MB. Free memory was 61.8 MB in the beginning and 58.8 MB in the end (delta: 3.0 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 148 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 151.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 150.8s. 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 45.1ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 148 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 319 SDtfs, 264 SDslu, 66 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 111.9ms 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: 911]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, NULL=0, NULL=29520, NULL=1, NULL=0, NULL=29525, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d6740fb=0, NULL=0, NULL=29511, tmp___1=0, tmp=0, NULL=29518, NULL=0, NULL=29530, NULL=29532, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b794621=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45c5f648=0, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, NULL=29510, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=29513, tmp=1, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, retValue_acc=0, tmp=1, NULL=0, tmp=1, tmp___0=0, retValue_acc=1, NULL=29517, NULL=29533, head=0, NULL=0, NULL=0, tmp=0, NULL=29521, NULL=0, NULL=0, NULL=29524, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22b1db0f=0, NULL=0, NULL=0, retValue_acc=0, NULL=29514, NULL=29528, NULL=29529, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57b07296=0, tmp___0=0, NULL=0, NULL=0, tmp___0=0, NULL=29515, NULL=29516, NULL=29534, tmp=0, NULL=29526, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3dd68b8a=78, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fca9753=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ae2fb08=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@142e2aa4=0, \result=0, NULL=29522, NULL=0, NULL=0, NULL=29537, NULL=29523, \result=0, NULL=29519, NULL=0, NULL=29531, retValue_acc=1, NULL=29536, tmp___2=78, splverifierCounter=0, NULL=0, NULL=29535, NULL=29512, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d1db949=0, NULL=29527} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L211] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L437] int cleanupTimeShifts = 4; [L590] int waterLevel = 1; [L591] int methaneLevelCritical = 0; [L696] int pumpRunning = 0; [L697] int systemActive = 1; [L518] int retValue_acc ; [L519] int tmp ; [L576] int retValue_acc ; [L579] retValue_acc = 1 [L580] return (retValue_acc); [L525] tmp = valid_product() [L527] COND TRUE \read(tmp) [L902] int splverifierCounter ; [L903] int tmp ; [L904] int tmp___0 ; [L905] int tmp___1 ; [L906] int tmp___2 ; [L909] splverifierCounter = 0 Loop: [L911] COND TRUE 1 [L913] COND TRUE splverifierCounter < 4 [L919] tmp = __VERIFIER_nondet_int() [L921] COND FALSE !(\read(tmp)) [L929] tmp___0 = __VERIFIER_nondet_int() [L931] COND FALSE !(\read(tmp___0)) [L939] tmp___2 = __VERIFIER_nondet_int() [L941] COND TRUE \read(tmp___2) [L896] systemActive = 1 [L703] COND FALSE !(\read(pumpRunning)) [L710] COND TRUE \read(systemActive) [L758] int tmp ; [L761] COND FALSE !(\read(pumpRunning)) [L732] int tmp ; [L735] COND TRUE ! pumpRunning [L855] int retValue_acc ; [L856] int tmp ; [L857] int tmp___0 ; [L670] int retValue_acc ; [L673] COND TRUE waterLevel < 2 [L674] retValue_acc = 1 [L675] return (retValue_acc); [L861] tmp = isHighWaterSensorDry() [L863] COND TRUE \read(tmp) [L864] tmp___0 = 0 [L868] retValue_acc = tmp___0 [L869] return (retValue_acc); [L737] tmp = isHighWaterLevel() [L739] COND FALSE !(\read(tmp)) [L412] int tmp ; [L413] int tmp___0 ; [L661] int retValue_acc ; [L664] retValue_acc = waterLevel [L665] return (retValue_acc); [L417] tmp = getWaterLevel() [L419] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:01:37,344 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3ce40c7-d921-4d84-ae79-714a52b2d7bb/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...