./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.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_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/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_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/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_98f04320-af53-404a-a0ba-e6a6669955d6/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 ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:21:34,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:21:34,466 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:21:34,496 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:21:34,497 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:21:34,498 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:21:34,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:21:34,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:21:34,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:21:34,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:21:34,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:21:34,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:21:34,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:21:34,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:21:34,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:21:34,513 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:21:34,514 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:21:34,515 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:21:34,517 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:21:34,520 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:21:34,522 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:21:34,523 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:21:34,525 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:21:34,526 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:21:34,530 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:21:34,530 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:21:34,531 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:21:34,532 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:21:34,532 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:21:34,534 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:21:34,534 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:21:34,535 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:21:34,536 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:21:34,537 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:21:34,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:21:34,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:21:34,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:21:34,540 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:21:34,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:21:34,542 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:21:34,543 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:21:34,544 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:21:34,569 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:21:34,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:21:34,569 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:21:34,570 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:21:34,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:21:34,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:21:34,571 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:21:34,572 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:21:34,572 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:21:34,572 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:21:34,572 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:21:34,573 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:21:34,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:21:34,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:21:34,573 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:21:34,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:21:34,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:21:34,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:21:34,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:21:34,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:21:34,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:21:34,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:21:34,575 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:21:34,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:21:34,576 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:21:34,576 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:21:34,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:21:34,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:21:34,577 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:21:34,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:21:34,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:21:34,577 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:21:34,578 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:21:34,579 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_98f04320-af53-404a-a0ba-e6a6669955d6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca9ad45e9cd0fa7cfc478092837003ff1c91f26680d4fb1c37c440560090c9e6 [2021-10-21 19:21:34,799 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:21:34,819 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:21:34,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:21:34,823 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:21:34,824 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:21:34,825 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2021-10-21 19:21:34,914 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/data/4e674bc54/c699c1c72e494ad8a5863f2e506911d3/FLAGe3e6b4419 [2021-10-21 19:21:35,464 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:21:35,465 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c [2021-10-21 19:21:35,476 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/data/4e674bc54/c699c1c72e494ad8a5863f2e506911d3/FLAGe3e6b4419 [2021-10-21 19:21:35,895 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/data/4e674bc54/c699c1c72e494ad8a5863f2e506911d3 [2021-10-21 19:21:35,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:21:35,899 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:21:35,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:35,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:21:35,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:21:35,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:35" (1/1) ... [2021-10-21 19:21:35,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64596f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:35, skipping insertion in model container [2021-10-21 19:21:35,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:21:35" (1/1) ... [2021-10-21 19:21:35,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:21:35,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:21:36,136 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_98f04320-af53-404a-a0ba-e6a6669955d6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2021-10-21 19:21:36,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:36,257 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:21:36,271 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_98f04320-af53-404a-a0ba-e6a6669955d6/sv-benchmarks/c/product-lines/minepump_spec2_product38.cil.c[1605,1618] [2021-10-21 19:21:36,328 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:21:36,347 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:21:36,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36 WrapperNode [2021-10-21 19:21:36,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:21:36,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:36,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:21:36,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:21:36,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,373 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,421 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:21:36,422 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:21:36,423 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:21:36,423 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:21:36,431 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,432 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,437 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,459 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:21:36,464 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:21:36,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:21:36,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:21:36,465 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (1/1) ... [2021-10-21 19:21:36,473 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:21:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:21:36,496 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:21:36,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:21:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:21:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:21:36,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:21:36,550 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:21:37,379 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:21:37,379 INFO L299 CfgBuilder]: Removed 160 assume(true) statements. [2021-10-21 19:21:37,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:37 BoogieIcfgContainer [2021-10-21 19:21:37,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:21:37,383 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:21:37,383 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:21:37,386 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:21:37,387 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:37,387 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:21:35" (1/3) ... [2021-10-21 19:21:37,389 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647fb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:21:37, skipping insertion in model container [2021-10-21 19:21:37,389 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:37,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:21:36" (2/3) ... [2021-10-21 19:21:37,389 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@647fb3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:21:37, skipping insertion in model container [2021-10-21 19:21:37,390 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:21:37,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:37" (3/3) ... [2021-10-21 19:21:37,391 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product38.cil.c [2021-10-21 19:21:37,434 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:21:37,434 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:21:37,434 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:21:37,435 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:21:37,435 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:21:37,435 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:21:37,435 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:21:37,435 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:21:37,461 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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 19:21:37,500 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 19:21:37,500 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:37,501 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:37,510 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:37,510 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:37,510 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:21:37,512 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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 19:21:37,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 71 [2021-10-21 19:21:37,528 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:37,528 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:37,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:37,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:37,540 INFO L791 eck$LassoCheckResult]: Stem: 100#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 34#L-1true havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 66#L125true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 89#L133true main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 77#L485true assume 0 != main_~tmp~5; 4#L461true ~methAndRunningLastTime~0 := 0; 99#L67true havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 71#L78-1true [2021-10-21 19:21:37,541 INFO L793 eck$LassoCheckResult]: Loop: 71#L78-1true assume !false; 41#L346true assume test_~splverifierCounter~0 < 4; 94#L347true test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 29#L355true assume !(0 != test_~tmp~4); 113#L355-1true test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 51#L365true assume !(0 != test_~tmp___0~2); 8#L365-1true test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 12#L375true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 21#L383-2true assume !(0 != ~pumpRunning~0); 9#L153true assume !(0 != ~systemActive~0); 70#L160true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 75#L543-1true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 20#L78true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 71#L78-1true [2021-10-21 19:21:37,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:37,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 19:21:37,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:37,584 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147389881] [2021-10-21 19:21:37,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:37,585 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:37,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:37,813 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:37,964 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:37,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:37,967 INFO L82 PathProgramCache]: Analyzing trace with hash 5246667, now seen corresponding path program 1 times [2021-10-21 19:21:37,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:37,968 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198802983] [2021-10-21 19:21:37,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:37,968 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:37,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:38,029 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 19:21:38,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:21:38,029 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198802983] [2021-10-21 19:21:38,030 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198802983] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:38,030 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:38,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:21:38,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934956477] [2021-10-21 19:21:38,036 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:21:38,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:21:38,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:21:38,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:21:38,054 INFO L87 Difference]: Start difference. First operand has 112 states, 111 states have (on average 1.5495495495495495) internal successors, (172), 111 states have internal predecessors, (172), 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) [2021-10-21 19:21:38,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:38,091 INFO L93 Difference]: Finished difference Result 112 states and 162 transitions. [2021-10-21 19:21:38,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:38,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 112 states and 162 transitions. [2021-10-21 19:21:38,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 19:21:38,101 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 112 states to 105 states and 154 transitions. [2021-10-21 19:21:38,102 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 105 [2021-10-21 19:21:38,103 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 105 [2021-10-21 19:21:38,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 105 states and 154 transitions. [2021-10-21 19:21:38,104 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:21:38,105 INFO L681 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-21 19:21:38,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states and 154 transitions. [2021-10-21 19:21:38,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2021-10-21 19:21:38,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 105 states have (on average 1.4666666666666666) internal successors, (154), 104 states have internal predecessors, (154), 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 19:21:38,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 154 transitions. [2021-10-21 19:21:38,137 INFO L704 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-21 19:21:38,137 INFO L587 BuchiCegarLoop]: Abstraction has 105 states and 154 transitions. [2021-10-21 19:21:38,137 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:21:38,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 105 states and 154 transitions. [2021-10-21 19:21:38,139 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 69 [2021-10-21 19:21:38,139 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:38,140 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:38,140 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:38,140 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:38,141 INFO L791 eck$LassoCheckResult]: Stem: 336#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 286#L-1 havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 287#L125 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 318#L133 main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 325#L485 assume 0 != main_~tmp~5; 233#L461 ~methAndRunningLastTime~0 := 0; 234#L67 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 267#L78-1 [2021-10-21 19:21:38,141 INFO L793 eck$LassoCheckResult]: Loop: 267#L78-1 assume !false; 299#L346 assume test_~splverifierCounter~0 < 4; 300#L347 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 281#L355 assume !(0 != test_~tmp~4); 241#L355-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 307#L365 assume !(0 != test_~tmp___0~2); 242#L365-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 243#L375 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 251#L383-2 assume !(0 != ~pumpRunning~0); 244#L153 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 245#L211 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 330#L185-1 assume !(0 == ~pumpRunning~0); 294#L160 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 321#L543-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 265#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 267#L78-1 [2021-10-21 19:21:38,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:38,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 19:21:38,142 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:38,142 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859957285] [2021-10-21 19:21:38,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:38,143 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:38,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,233 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:38,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,325 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:38,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:38,326 INFO L82 PathProgramCache]: Analyzing trace with hash -1693207934, now seen corresponding path program 1 times [2021-10-21 19:21:38,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:38,326 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457206160] [2021-10-21 19:21:38,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:38,327 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:38,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:21:38,344 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 19:21:38,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:21:38,344 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457206160] [2021-10-21 19:21:38,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457206160] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:21:38,345 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:21:38,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:21:38,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562251514] [2021-10-21 19:21:38,345 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:21:38,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:21:38,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:21:38,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:21:38,347 INFO L87 Difference]: Start difference. First operand 105 states and 154 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) [2021-10-21 19:21:38,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:21:38,460 INFO L93 Difference]: Finished difference Result 149 states and 208 transitions. [2021-10-21 19:21:38,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:21:38,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 149 states and 208 transitions. [2021-10-21 19:21:38,466 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-21 19:21:38,471 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 149 states to 149 states and 208 transitions. [2021-10-21 19:21:38,471 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 149 [2021-10-21 19:21:38,472 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 149 [2021-10-21 19:21:38,473 INFO L73 IsDeterministic]: Start isDeterministic. Operand 149 states and 208 transitions. [2021-10-21 19:21:38,475 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:21:38,475 INFO L681 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-21 19:21:38,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states and 208 transitions. [2021-10-21 19:21:38,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2021-10-21 19:21:38,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 149 states have (on average 1.395973154362416) internal successors, (208), 148 states have internal predecessors, (208), 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 19:21:38,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 208 transitions. [2021-10-21 19:21:38,492 INFO L704 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-21 19:21:38,493 INFO L587 BuchiCegarLoop]: Abstraction has 149 states and 208 transitions. [2021-10-21 19:21:38,493 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:21:38,493 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 149 states and 208 transitions. [2021-10-21 19:21:38,495 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 102 [2021-10-21 19:21:38,495 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:21:38,495 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:21:38,497 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:21:38,497 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] [2021-10-21 19:21:38,497 INFO L791 eck$LassoCheckResult]: Stem: 604#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~string14.base, #t~string14.offset := #Ultimate.allocOnStack(13);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string16.base, #t~string16.offset, 1);call write~init~int(110, #t~string16.base, 1 + #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 2 + #t~string16.offset, 1);call #t~string18.base, #t~string18.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string18.base, #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 1 + #t~string18.offset, 1);call write~init~int(102, #t~string18.base, 2 + #t~string18.offset, 1);call write~init~int(0, #t~string18.base, 3 + #t~string18.offset, 1);call #t~string20.base, #t~string20.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string20.base, #t~string20.offset, 1);call write~init~int(80, #t~string20.base, 1 + #t~string20.offset, 1);call write~init~int(117, #t~string20.base, 2 + #t~string20.offset, 1);call write~init~int(109, #t~string20.base, 3 + #t~string20.offset, 1);call write~init~int(112, #t~string20.base, 4 + #t~string20.offset, 1);call write~init~int(58, #t~string20.base, 5 + #t~string20.offset, 1);call write~init~int(0, #t~string20.base, 6 + #t~string20.offset, 1);call #t~string22.base, #t~string22.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string22.base, #t~string22.offset, 1);call write~init~int(110, #t~string22.base, 1 + #t~string22.offset, 1);call write~init~int(0, #t~string22.base, 2 + #t~string22.offset, 1);call #t~string24.base, #t~string24.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string24.base, #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 1 + #t~string24.offset, 1);call write~init~int(102, #t~string24.base, 2 + #t~string24.offset, 1);call write~init~int(0, #t~string24.base, 3 + #t~string24.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string26.base, #t~string26.offset, 1);call write~init~int(32, #t~string26.base, 1 + #t~string26.offset, 1);call write~init~int(0, #t~string26.base, 2 + #t~string26.offset, 1);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string28.base, #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 1 + #t~string28.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(13);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string38.base, #t~string38.offset, 1);call write~init~int(77, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(101, #t~string38.base, 2 + #t~string38.offset, 1);call write~init~int(116, #t~string38.base, 3 + #t~string38.offset, 1);call write~init~int(104, #t~string38.base, 4 + #t~string38.offset, 1);call write~init~int(58, #t~string38.base, 5 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 6 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string40.base, #t~string40.offset, 1);call write~init~int(82, #t~string40.base, 1 + #t~string40.offset, 1);call write~init~int(73, #t~string40.base, 2 + #t~string40.offset, 1);call write~init~int(84, #t~string40.base, 3 + #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 4 + #t~string40.offset, 1);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string42.base, #t~string42.offset, 1);call write~init~int(75, #t~string42.base, 1 + #t~string42.offset, 1);call write~init~int(0, #t~string42.base, 2 + #t~string42.offset, 1);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string44.base, #t~string44.offset, 1);call write~init~int(0, #t~string44.base, 1 + #t~string44.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(30);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(9);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(21);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(30);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(9);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(25);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0; 545#L-1 havoc main_#res;havoc main_#t~ret34, main_~retValue_acc~5, main_~tmp~5;havoc main_~retValue_acc~5;havoc main_~tmp~5; 546#L125 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 581#L133 main_#t~ret34 := valid_product_#res;main_~tmp~5 := main_#t~ret34;havoc main_#t~ret34; 589#L485 assume 0 != main_~tmp~5; 493#L461 ~methAndRunningLastTime~0 := 0; 494#L67 havoc test_#t~nondet30, test_#t~nondet31, test_#t~nondet32, test_#t~nondet33, test_~splverifierCounter~0, test_~tmp~4, test_~tmp___0~2, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~4;havoc test_~tmp___0~2;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 585#L78-1 [2021-10-21 19:21:38,498 INFO L793 eck$LassoCheckResult]: Loop: 585#L78-1 assume !false; 560#L346 assume test_~splverifierCounter~0 < 4; 561#L347 test_~tmp~4 := test_#t~nondet30;havoc test_#t~nondet30; 540#L355 assume !(0 != test_~tmp~4); 501#L355-1 test_~tmp___0~2 := test_#t~nondet31;havoc test_#t~nondet31; 569#L365 assume !(0 != test_~tmp___0~2); 502#L365-1 test_~tmp___2~0 := test_#t~nondet32;havoc test_#t~nondet32; 503#L375 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 511#L383-2 assume !(0 != ~pumpRunning~0); 504#L153 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret11, processEnvironment_~tmp~2;havoc processEnvironment_~tmp~2; 505#L211 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret10, processEnvironment__wrappee__highWaterSensor_~tmp~1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1; 596#L185-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret29, isHighWaterLevel_~retValue_acc~4, isHighWaterLevel_~tmp~3, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~4;havoc isHighWaterLevel_~tmp~3;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 556#L583-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 557#L588-1 isHighWaterLevel_#t~ret29 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~3 := isHighWaterLevel_#t~ret29;havoc isHighWaterLevel_#t~ret29; 533#L313-3 assume 0 != isHighWaterLevel_~tmp~3;isHighWaterLevel_~tmp___0~1 := 0; 534#L313-5 isHighWaterLevel_~retValue_acc~4 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~4; 542#L319-1 processEnvironment__wrappee__highWaterSensor_#t~ret10 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~1 := processEnvironment__wrappee__highWaterSensor_#t~ret10;havoc processEnvironment__wrappee__highWaterSensor_#t~ret10; 553#L189-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1); 554#L160 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 639#L543-1 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 637#L78 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 585#L78-1 [2021-10-21 19:21:38,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:38,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 19:21:38,502 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:38,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684521847] [2021-10-21 19:21:38,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:38,504 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:38,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,608 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:38,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,675 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:38,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:38,676 INFO L82 PathProgramCache]: Analyzing trace with hash 446590702, now seen corresponding path program 1 times [2021-10-21 19:21:38,676 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:38,676 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096673566] [2021-10-21 19:21:38,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:38,677 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:38,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,690 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:38,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,700 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:21:38,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:21:38,710 INFO L82 PathProgramCache]: Analyzing trace with hash -2075234968, now seen corresponding path program 1 times [2021-10-21 19:21:38,711 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:21:38,711 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582165667] [2021-10-21 19:21:38,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:21:38,711 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:21:38,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,772 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:21:38,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:21:38,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:22:32,044 WARN L207 SmtUtils]: Spent 52.88 s on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 19:23:27,646 WARN L207 SmtUtils]: Spent 26.93 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 19:23:27,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:23:27 BoogieIcfgContainer [2021-10-21 19:23:27,754 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:23:27,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:23:27,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:23:27,755 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:23:27,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:21:37" (3/4) ... [2021-10-21 19:23:27,758 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:23:27,805 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:23:27,806 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:23:27,807 INFO L168 Benchmark]: Toolchain (without parser) took 111907.10 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 57.7 MB in the beginning and 42.3 MB in the end (delta: 15.4 MB). Peak memory consumption was 49.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,807 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 47.5 MB in the beginning and 47.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:23:27,808 INFO L168 Benchmark]: CACSL2BoogieTranslator took 441.44 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 57.5 MB in the beginning and 95.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,808 INFO L168 Benchmark]: Boogie Procedure Inliner took 73.11 ms. Allocated memory is still 127.9 MB. Free memory was 95.0 MB in the beginning and 91.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,809 INFO L168 Benchmark]: Boogie Preprocessor took 40.87 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 89.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,820 INFO L168 Benchmark]: RCFGBuilder took 917.73 ms. Allocated memory is still 127.9 MB. Free memory was 88.7 MB in the beginning and 46.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,821 INFO L168 Benchmark]: BuchiAutomizer took 110371.37 ms. Allocated memory is still 127.9 MB. Free memory was 46.7 MB in the beginning and 45.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,821 INFO L168 Benchmark]: Witness Printer took 51.40 ms. Allocated memory is still 127.9 MB. Free memory was 45.3 MB in the beginning and 42.3 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:23:27,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 92.3 MB. Free memory was 47.5 MB in the beginning and 47.4 MB in the end (delta: 70.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 441.44 ms. Allocated memory was 92.3 MB in the beginning and 127.9 MB in the end (delta: 35.7 MB). Free memory was 57.5 MB in the beginning and 95.0 MB in the end (delta: -37.5 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 73.11 ms. Allocated memory is still 127.9 MB. Free memory was 95.0 MB in the beginning and 91.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.87 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 89.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 917.73 ms. Allocated memory is still 127.9 MB. Free memory was 88.7 MB in the beginning and 46.7 MB in the end (delta: 41.9 MB). Peak memory consumption was 41.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 110371.37 ms. Allocated memory is still 127.9 MB. Free memory was 46.7 MB in the beginning and 45.3 MB in the end (delta: 1.5 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. * Witness Printer took 51.40 ms. Allocated memory is still 127.9 MB. Free memory was 45.3 MB in the beginning and 42.3 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 149 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 110.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 109.9s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 35.6ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 149 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 311 SDtfs, 269 SDslu, 63 SDs, 0 SdLazy, 33 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.8ms 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: 345]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=7847} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=7847, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e80493e=0, NULL=0, NULL=7874, NULL=7854, methaneLevelCritical=0, retValue_acc=0, tmp=0, NULL=0, NULL=7865, NULL=0, tmp___1=0, NULL=0, NULL=7852, NULL=7855, cleanupTimeShifts=4, NULL=7871, NULL=7857, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f87e85f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71d6ce66=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@637548cc=0, waterLevel=1, NULL=0, NULL=7870, \result=1, head=0, pumpRunning=0, retValue_acc=1, NULL=7864, NULL=0, tmp=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@406b4924=74, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@928b386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20e56c65=0, NULL=0, tmp=1, NULL=0, NULL=7866, NULL=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=7849, methAndRunningLastTime=0, NULL=7863, NULL=7868, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@250359a3=0, tmp=0, head=0, NULL=0, NULL=0, NULL=7861, NULL=0, NULL=0, retValue_acc=0, NULL=7869, NULL=7872, NULL=7867, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a3d4f87=0, tmp___0=0, NULL=0, NULL=0, NULL=0, NULL=7851, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6d968492=0, tmp=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=7848, NULL=7859, \result=0, NULL=7862, NULL=0, NULL=0, tmp___0=0, NULL=7853, NULL=7850, NULL=7860, retValue_acc=1, tmp___2=74, splverifierCounter=0, NULL=0, \result=0, NULL=7856, NULL=0, NULL=0, NULL=7858, tmp=0, NULL=0, NULL=7873, NULL=7875} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L61] int methAndRunningLastTime ; [L146] int pumpRunning = 0; [L147] int systemActive = 1; [L402] int cleanupTimeShifts = 4; [L500] int waterLevel = 1; [L501] int methaneLevelCritical = 0; [L763] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L476] int retValue_acc ; [L477] int tmp ; [L129] int retValue_acc ; [L132] retValue_acc = 1 [L133] return (retValue_acc); [L483] tmp = valid_product() [L485] COND TRUE \read(tmp) [L66] methAndRunningLastTime = 0 [L336] int splverifierCounter ; [L337] int tmp ; [L338] int tmp___0 ; [L339] int tmp___1 ; [L340] int tmp___2 ; [L343] splverifierCounter = 0 Loop: [L345] COND TRUE 1 [L347] COND TRUE splverifierCounter < 4 [L353] tmp = __VERIFIER_nondet_int() [L355] COND FALSE !(\read(tmp)) [L363] tmp___0 = __VERIFIER_nondet_int() [L365] COND FALSE !(\read(tmp___0)) [L373] tmp___2 = __VERIFIER_nondet_int() [L375] COND TRUE \read(tmp___2) [L327] systemActive = 1 [L153] COND FALSE !(\read(pumpRunning)) [L160] COND TRUE \read(systemActive) [L208] int tmp ; [L211] COND FALSE !(\read(pumpRunning)) [L182] int tmp ; [L185] COND TRUE ! pumpRunning [L305] int retValue_acc ; [L306] int tmp ; [L307] int tmp___0 ; [L580] int retValue_acc ; [L583] COND TRUE waterLevel < 2 [L584] retValue_acc = 1 [L585] return (retValue_acc); [L311] tmp = isHighWaterSensorDry() [L313] COND TRUE \read(tmp) [L314] tmp___0 = 0 [L318] retValue_acc = tmp___0 [L319] return (retValue_acc); [L187] tmp = isHighWaterLevel() [L189] COND FALSE !(\read(tmp)) [L71] int tmp ; [L72] int tmp___0 ; [L539] int retValue_acc ; [L542] retValue_acc = methaneLevelCritical [L543] return (retValue_acc); [L76] tmp = isMethaneLevelCritical() [L78] COND FALSE !(\read(tmp)) [L94] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:23:27,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_98f04320-af53-404a-a0ba-e6a6669955d6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...