./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be --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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 19:14:04,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:14:04,330 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:14:04,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:14:04,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:14:04,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:14:04,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:14:04,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:14:04,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:14:04,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:14:04,395 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:14:04,397 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:14:04,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:14:04,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:14:04,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:14:04,402 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:14:04,403 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:14:04,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:14:04,407 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:14:04,410 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:14:04,412 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:14:04,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:14:04,415 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:14:04,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:14:04,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:14:04,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:14:04,421 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:14:04,422 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:14:04,423 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:14:04,424 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:14:04,425 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:14:04,426 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:14:04,427 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:14:04,428 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:14:04,429 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:14:04,430 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:14:04,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:14:04,431 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:14:04,431 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:14:04,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:14:04,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:14:04,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:14:04,468 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:14:04,470 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:14:04,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:14:04,471 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:14:04,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:14:04,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:14:04,472 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:14:04,473 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:14:04,473 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:14:04,473 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:14:04,474 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:14:04,474 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:14:04,474 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:14:04,475 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:14:04,475 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:14:04,475 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:14:04,475 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:14:04,475 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:14:04,476 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:14:04,477 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:14:04,477 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:14:04,477 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:14:04,477 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:14:04,477 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:14:04,478 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:14:04,478 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:14:04,478 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:14:04,480 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:14:04,480 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_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2021-10-21 19:14:04,765 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:14:04,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:14:04,790 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:14:04,791 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:14:04,792 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:14:04,793 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-21 19:14:04,856 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/data/6fa48be7e/b30177ba605c41d69b1a01acab10764b/FLAGedce1b6e1 [2021-10-21 19:14:05,332 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:14:05,333 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2021-10-21 19:14:05,349 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/data/6fa48be7e/b30177ba605c41d69b1a01acab10764b/FLAGedce1b6e1 [2021-10-21 19:14:05,675 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/data/6fa48be7e/b30177ba605c41d69b1a01acab10764b [2021-10-21 19:14:05,678 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:14:05,679 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:14:05,688 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:05,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:14:05,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:14:05,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:05" (1/1) ... [2021-10-21 19:14:05,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59bb717c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:05, skipping insertion in model container [2021-10-21 19:14:05,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:14:05" (1/1) ... [2021-10-21 19:14:05,723 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:14:05,804 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:14:06,000 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_18ac91da-a3e5-44d6-9133-e1c909469b93/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2021-10-21 19:14:06,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:06,123 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:14:06,152 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_18ac91da-a3e5-44d6-9133-e1c909469b93/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c[2984,2997] [2021-10-21 19:14:06,261 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:14:06,282 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:14:06,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06 WrapperNode [2021-10-21 19:14:06,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:14:06,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:06,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:14:06,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:14:06,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,315 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:14:06,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:14:06,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:14:06,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:14:06,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,399 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,428 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,435 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:14:06,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:14:06,453 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:14:06,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:14:06,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (1/1) ... [2021-10-21 19:14:06,474 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:14:06,494 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:14:06,507 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:14:06,530 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:14:06,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:14:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:14:06,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:14:06,561 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:14:07,483 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:14:07,483 INFO L299 CfgBuilder]: Removed 166 assume(true) statements. [2021-10-21 19:14:07,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:07 BoogieIcfgContainer [2021-10-21 19:14:07,486 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:14:07,487 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:14:07,487 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:14:07,491 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:14:07,492 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:07,492 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:14:05" (1/3) ... [2021-10-21 19:14:07,494 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24a7011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:07, skipping insertion in model container [2021-10-21 19:14:07,494 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:07,494 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:14:06" (2/3) ... [2021-10-21 19:14:07,495 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@24a7011a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:14:07, skipping insertion in model container [2021-10-21 19:14:07,495 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:14:07,495 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:07" (3/3) ... [2021-10-21 19:14:07,496 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2021-10-21 19:14:07,542 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:14:07,542 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:14:07,543 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:14:07,543 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:14:07,543 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:14:07,543 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:14:07,543 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:14:07,544 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:14:07,562 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-10-21 19:14:07,588 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 19:14:07,589 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:07,589 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:07,597 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:14:07,597 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:07,597 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:14:07,598 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 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) [2021-10-21 19:14:07,605 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 19:14:07,606 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:07,606 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:07,607 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:14:07,607 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:07,612 INFO L791 eck$LassoCheckResult]: Stem: 98#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);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(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 36#L-1true havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 85#L865true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 37#L873true main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 8#L960true assume 0 != main_~tmp~9; 71#L937true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 111#L821-1true [2021-10-21 19:14:07,613 INFO L793 eck$LassoCheckResult]: Loop: 111#L821-1true assume !false; 74#L535true assume test_~splverifierCounter~0 < 4; 58#L536true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 89#L544true assume !(0 != test_~tmp~3); 81#L544-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 112#L554true assume !(0 != test_~tmp___0~0); 10#L554-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 15#L564true assume 0 != test_~tmp___2~0; 106#L570-1true assume !(0 != ~pumpRunning~0); 96#L603true assume !(0 != ~systemActive~0); 46#L610true havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 62#L100-1true __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 63#L815true assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 111#L821-1true [2021-10-21 19:14:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:07,619 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:14:07,629 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:07,634 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910299194] [2021-10-21 19:14:07,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:07,636 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:07,901 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:08,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,112 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:08,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:08,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1671709762, now seen corresponding path program 1 times [2021-10-21 19:14:08,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:08,124 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534197052] [2021-10-21 19:14:08,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:08,125 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:08,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,148 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:08,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,157 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:08,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:08,164 INFO L82 PathProgramCache]: Analyzing trace with hash 42569176, now seen corresponding path program 1 times [2021-10-21 19:14:08,169 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:08,169 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063408659] [2021-10-21 19:14:08,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:08,170 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:08,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:08,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:14:08,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:14:08,335 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063408659] [2021-10-21 19:14:08,336 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063408659] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:14:08,336 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:14:08,336 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:14:08,337 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630027835] [2021-10-21 19:14:08,452 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:14:08,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:14:08,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:14:08,469 INFO L87 Difference]: Start difference. First operand has 110 states, 109 states have (on average 1.5137614678899083) internal successors, (165), 109 states have internal predecessors, (165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 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) [2021-10-21 19:14:08,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:08,741 INFO L93 Difference]: Finished difference Result 270 states and 381 transitions. [2021-10-21 19:14:08,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:14:08,743 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 270 states and 381 transitions. [2021-10-21 19:14:08,761 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 173 [2021-10-21 19:14:08,774 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 270 states to 249 states and 360 transitions. [2021-10-21 19:14:08,775 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2021-10-21 19:14:08,777 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2021-10-21 19:14:08,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 360 transitions. [2021-10-21 19:14:08,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:14:08,781 INFO L681 BuchiCegarLoop]: Abstraction has 249 states and 360 transitions. [2021-10-21 19:14:08,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 360 transitions. [2021-10-21 19:14:08,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 150. [2021-10-21 19:14:08,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 150 states have (on average 1.44) internal successors, (216), 149 states have internal predecessors, (216), 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) [2021-10-21 19:14:08,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 216 transitions. [2021-10-21 19:14:08,838 INFO L704 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-21 19:14:08,838 INFO L587 BuchiCegarLoop]: Abstraction has 150 states and 216 transitions. [2021-10-21 19:14:08,838 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:14:08,838 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 150 states and 216 transitions. [2021-10-21 19:14:08,840 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 104 [2021-10-21 19:14:08,840 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:08,840 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:08,841 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:14:08,841 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:08,842 INFO L791 eck$LassoCheckResult]: Stem: 500#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);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(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 448#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 449#L865 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 450#L873 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 406#L960 assume 0 != main_~tmp~9; 407#L937 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 480#L821-1 [2021-10-21 19:14:08,842 INFO L793 eck$LassoCheckResult]: Loop: 480#L821-1 assume !false; 487#L535 assume test_~splverifierCounter~0 < 4; 473#L536 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 474#L544 assume !(0 != test_~tmp~3); 469#L544-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 494#L554 assume !(0 != test_~tmp___0~0); 410#L554-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 411#L564 assume 0 != test_~tmp___2~0; 416#L570-1 assume !(0 != ~pumpRunning~0); 405#L603 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 497#L661 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 498#L635-1 assume !(0 != ~pumpRunning~0); 432#L610 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 458#L100-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 478#L815 assume 0 != __utac_acc__Specification3_spec__1_~tmp~8; 480#L821-1 [2021-10-21 19:14:08,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:08,843 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:14:08,843 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:08,843 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624695158] [2021-10-21 19:14:08,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:08,844 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:08,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,888 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:08,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,950 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:08,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:08,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1950294320, now seen corresponding path program 1 times [2021-10-21 19:14:08,956 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:08,956 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398187807] [2021-10-21 19:14:08,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:08,958 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:08,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,963 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:08,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:08,971 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:08,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:08,972 INFO L82 PathProgramCache]: Analyzing trace with hash 104912074, now seen corresponding path program 1 times [2021-10-21 19:14:08,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:08,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225372602] [2021-10-21 19:14:08,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:08,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:08,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:14:09,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 19:14:09,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:14:09,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225372602] [2021-10-21 19:14:09,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225372602] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:14:09,049 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:14:09,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:14:09,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218145125] [2021-10-21 19:14:09,171 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:14:09,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:14:09,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:14:09,173 INFO L87 Difference]: Start difference. First operand 150 states and 216 transitions. cyclomatic complexity: 69 Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 19:14:09,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:14:09,384 INFO L93 Difference]: Finished difference Result 511 states and 749 transitions. [2021-10-21 19:14:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:14:09,385 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 511 states and 749 transitions. [2021-10-21 19:14:09,390 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 367 [2021-10-21 19:14:09,396 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 511 states to 511 states and 749 transitions. [2021-10-21 19:14:09,396 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 511 [2021-10-21 19:14:09,397 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 511 [2021-10-21 19:14:09,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 511 states and 749 transitions. [2021-10-21 19:14:09,400 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:14:09,401 INFO L681 BuchiCegarLoop]: Abstraction has 511 states and 749 transitions. [2021-10-21 19:14:09,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states and 749 transitions. [2021-10-21 19:14:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 294. [2021-10-21 19:14:09,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 294 states have (on average 1.4217687074829932) internal successors, (418), 293 states have internal predecessors, (418), 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) [2021-10-21 19:14:09,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 418 transitions. [2021-10-21 19:14:09,418 INFO L704 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2021-10-21 19:14:09,418 INFO L587 BuchiCegarLoop]: Abstraction has 294 states and 418 transitions. [2021-10-21 19:14:09,418 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:14:09,418 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 294 states and 418 transitions. [2021-10-21 19:14:09,420 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 208 [2021-10-21 19:14:09,420 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:14:09,421 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:14:09,421 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:14:09,421 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:14:09,422 INFO L791 eck$LassoCheckResult]: Stem: 1208#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~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);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(75, #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(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);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(25);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(13);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string63.base, #t~string63.offset, 1);call write~init~int(110, #t~string63.base, 1 + #t~string63.offset, 1);call write~init~int(0, #t~string63.base, 2 + #t~string63.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string65.base, #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 1 + #t~string65.offset, 1);call write~init~int(102, #t~string65.base, 2 + #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 3 + #t~string65.offset, 1);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string67.base, #t~string67.offset, 1);call write~init~int(80, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(117, #t~string67.base, 2 + #t~string67.offset, 1);call write~init~int(109, #t~string67.base, 3 + #t~string67.offset, 1);call write~init~int(112, #t~string67.base, 4 + #t~string67.offset, 1);call write~init~int(58, #t~string67.base, 5 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 6 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(110, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 2 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string71.base, #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(102, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 3 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string73.base, #t~string73.offset, 1);call write~init~int(32, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string75.base, #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 1 + #t~string75.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1129#L-1 havoc main_#res;havoc main_#t~ret81, main_~retValue_acc~11, main_~tmp~9;havoc main_~retValue_acc~11;havoc main_~tmp~9; 1130#L865 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 1131#L873 main_#t~ret81 := valid_product_#res;main_~tmp~9 := main_#t~ret81;havoc main_#t~ret81; 1085#L960 assume 0 != main_~tmp~9; 1086#L937 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1179#L821-1 [2021-10-21 19:14:09,422 INFO L793 eck$LassoCheckResult]: Loop: 1179#L821-1 assume !false; 1183#L535 assume test_~splverifierCounter~0 < 4; 1160#L536 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 1161#L544 assume !(0 != test_~tmp~3); 1155#L544-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 1192#L554 assume !(0 != test_~tmp___0~0); 1091#L554-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 1092#L564 assume 0 != test_~tmp___2~0; 1095#L570-1 assume !(0 != ~pumpRunning~0); 1084#L603 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret57, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 1206#L661 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret56, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 1219#L635-1 assume !(0 != ~pumpRunning~0); 1110#L610 havoc __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_#t~ret79, __utac_acc__Specification3_spec__1_~tmp~8, __utac_acc__Specification3_spec__1_~tmp___0~2, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~8;havoc __utac_acc__Specification3_spec__1_~tmp___0~2;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~0;havoc isMethaneLevelCritical_~retValue_acc~0;isMethaneLevelCritical_~retValue_acc~0 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~0; 1143#L100-1 __utac_acc__Specification3_spec__1_#t~ret77 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~8 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 1169#L815 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~8);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 1170#L132 __utac_acc__Specification3_spec__1_#t~ret78 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~2 := __utac_acc__Specification3_spec__1_#t~ret78;havoc __utac_acc__Specification3_spec__1_#t~ret78; 1210#L821 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2); 1179#L821-1 [2021-10-21 19:14:09,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:09,422 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 19:14:09,423 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:09,423 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113725633] [2021-10-21 19:14:09,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:09,423 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,466 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:09,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,561 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:09,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:09,561 INFO L82 PathProgramCache]: Analyzing trace with hash 1627108098, now seen corresponding path program 1 times [2021-10-21 19:14:09,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:09,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140922020] [2021-10-21 19:14:09,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:09,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,567 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:09,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,575 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:14:09,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:14:09,576 INFO L82 PathProgramCache]: Analyzing trace with hash 2036262940, now seen corresponding path program 1 times [2021-10-21 19:14:09,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:14:09,576 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788022901] [2021-10-21 19:14:09,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:14:09,576 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:14:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,608 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:14:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:14:09,657 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:15:10,926 WARN L207 SmtUtils]: Spent 1.02 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:16:14,606 WARN L207 SmtUtils]: Spent 29.22 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:16:14,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:16:14 BoogieIcfgContainer [2021-10-21 19:16:14,793 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:16:14,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:16:14,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:16:14,794 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:16:14,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:14:07" (3/4) ... [2021-10-21 19:16:14,797 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:16:14,864 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:16:14,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:16:14,871 INFO L168 Benchmark]: Toolchain (without parser) took 129191.11 ms. Allocated memory was 96.5 MB in the beginning and 155.2 MB in the end (delta: 58.7 MB). Free memory was 55.9 MB in the beginning and 68.8 MB in the end (delta: -12.9 MB). Peak memory consumption was 46.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,871 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:16:14,872 INFO L168 Benchmark]: CACSL2BoogieTranslator took 595.26 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 64.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,874 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.62 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 60.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,875 INFO L168 Benchmark]: Boogie Preprocessor took 88.19 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 58.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,876 INFO L168 Benchmark]: RCFGBuilder took 1033.77 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 58.4 MB in the beginning and 81.3 MB in the end (delta: -23.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,877 INFO L168 Benchmark]: BuchiAutomizer took 127306.18 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 81.3 MB in the beginning and 70.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,877 INFO L168 Benchmark]: Witness Printer took 75.64 ms. Allocated memory is still 155.2 MB. Free memory was 70.9 MB in the beginning and 68.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:16:14,879 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 96.5 MB. Free memory is still 72.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 595.26 ms. Allocated memory is still 96.5 MB. Free memory was 55.7 MB in the beginning and 64.5 MB in the end (delta: -8.8 MB). Peak memory consumption was 4.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 78.62 ms. Allocated memory is still 96.5 MB. Free memory was 64.5 MB in the beginning and 60.8 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 88.19 ms. Allocated memory is still 96.5 MB. Free memory was 60.8 MB in the beginning and 58.4 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1033.77 ms. Allocated memory was 96.5 MB in the beginning and 125.8 MB in the end (delta: 29.4 MB). Free memory was 58.4 MB in the beginning and 81.3 MB in the end (delta: -23.0 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 127306.18 ms. Allocated memory was 125.8 MB in the beginning and 155.2 MB in the end (delta: 29.4 MB). Free memory was 81.3 MB in the beginning and 70.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 76.4 MB. Max. memory is 16.1 GB. * Witness Printer took 75.64 ms. Allocated memory is still 155.2 MB. Free memory was 70.9 MB in the beginning and 68.8 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 6 locations. The remainder module has 294 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 127.2s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 126.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 59.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 316 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 294 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 365 SDtfs, 1154 SDslu, 1360 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 256.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 534]: 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, retValue_acc=0, NULL=0, NULL=4449, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46cdfce0=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9cb6045=0, NULL=1, NULL=3985, NULL=0, NULL=14677, NULL=0, NULL=0, NULL=0, NULL=14680, NULL=14663, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28d9aff9=54, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@459862e8=0, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e870afd=0, NULL=14669, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3deac658=0, NULL=14682, retValue_acc=1, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5afc2253=0, NULL=0, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, NULL=14675, NULL=14664, cleanupTimeShifts=4, NULL=4444, NULL=14672, tmp=0, tmp___0=1, NULL=0, systemActive=1, waterLevel=1, NULL=14671, \result=1, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@377bc2d2=0, NULL=0, NULL=14670, NULL=0, NULL=14678, NULL=4448, tmp___0=0, retValue_acc=0, NULL=14674, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=14667, \result=0, NULL=0, NULL=0, NULL=0, NULL=14676, NULL=14668, NULL=14681, NULL=14666, NULL=0, NULL=4447, NULL=0, NULL=14679, tmp___2=54, NULL=0, splverifierCounter=0, NULL=0, \result=0, NULL=4445, NULL=14673, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@33dc8c0=0, tmp___1=0, head=0, tmp=0, tmp=1, NULL=0, NULL=0, NULL=14665, NULL=14683, NULL=0, NULL=4446, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1035cd02=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; [L951] int retValue_acc ; [L952] int tmp ; [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 Loop: [L534] COND TRUE 1 [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND FALSE !(\read(tmp)) [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND TRUE \read(tmp___2) [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L658] int tmp ; [L661] COND FALSE !(\read(pumpRunning)) [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] tmp___0 = getWaterLevel() [L821] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:16:14,961 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_18ac91da-a3e5-44d6-9133-e1c909469b93/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...