./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.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_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/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_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/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_ff063d8e-e503-47ab-b676-207a5e49cea6/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 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f ...................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:25:12,262 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:25:12,265 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:25:12,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:25:12,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:25:12,323 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:25:12,325 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:25:12,329 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:25:12,331 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:25:12,339 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:25:12,340 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:25:12,342 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:25:12,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:25:12,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:25:12,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:25:12,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:25:12,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:25:12,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:25:12,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:25:12,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:25:12,369 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:25:12,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:25:12,374 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:25:12,375 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:25:12,381 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:25:12,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:25:12,382 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:25:12,385 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:25:12,385 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:25:12,387 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:25:12,387 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:25:12,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:25:12,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:25:12,391 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:25:12,392 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:25:12,393 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:25:12,393 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:25:12,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:25:12,394 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:25:12,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:25:12,395 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:25:12,396 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:25:12,440 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:25:12,441 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:25:12,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:25:12,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:25:12,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:25:12,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:25:12,443 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:25:12,444 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:25:12,444 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:25:12,444 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:25:12,445 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:25:12,446 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:25:12,446 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:25:12,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:25:12,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:25:12,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:25:12,447 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:25:12,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:25:12,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:25:12,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:25:12,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:25:12,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:25:12,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:25:12,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:25:12,448 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:25:12,449 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:25:12,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:25:12,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:25:12,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:25:12,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:25:12,452 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:25:12,452 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:25:12,453 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:25:12,453 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_ff063d8e-e503-47ab-b676-207a5e49cea6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63a498e40ee7fb7960293994084186ed238562f61fafb5e109bd8b394667fc1f [2021-10-21 19:25:12,695 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:25:12,714 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:25:12,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:25:12,718 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:25:12,719 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:25:12,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2021-10-21 19:25:12,783 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/data/b5d180eb7/e1982e05812a40a88a76fc574cf44706/FLAG088d9e32d [2021-10-21 19:25:13,265 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:25:13,265 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c [2021-10-21 19:25:13,283 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/data/b5d180eb7/e1982e05812a40a88a76fc574cf44706/FLAG088d9e32d [2021-10-21 19:25:13,799 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/data/b5d180eb7/e1982e05812a40a88a76fc574cf44706 [2021-10-21 19:25:13,802 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:25:13,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:25:13,805 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:25:13,805 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:25:13,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:25:13,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:25:13" (1/1) ... [2021-10-21 19:25:13,810 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51959f9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:13, skipping insertion in model container [2021-10-21 19:25:13,810 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:25:13" (1/1) ... [2021-10-21 19:25:13,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:25:13,864 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:25:14,215 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_ff063d8e-e503-47ab-b676-207a5e49cea6/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2021-10-21 19:25:14,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:25:14,291 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:25:14,371 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_ff063d8e-e503-47ab-b676-207a5e49cea6/sv-benchmarks/c/product-lines/minepump_spec4_product60.cil.c[13463,13476] [2021-10-21 19:25:14,394 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:25:14,413 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:25:14,414 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14 WrapperNode [2021-10-21 19:25:14,414 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:25:14,415 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:25:14,415 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:25:14,416 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:25:14,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,514 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:25:14,515 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:25:14,515 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:25:14,515 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:25:14,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,598 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:25:14,599 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:25:14,599 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:25:14,600 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:25:14,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (1/1) ... [2021-10-21 19:25:14,624 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:25:14,637 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:25:14,647 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:25:14,660 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:25:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:25:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:25:14,691 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:25:14,691 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:25:15,611 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:25:15,611 INFO L299 CfgBuilder]: Removed 198 assume(true) statements. [2021-10-21 19:25:15,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:25:15 BoogieIcfgContainer [2021-10-21 19:25:15,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:25:15,615 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:25:15,615 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:25:15,620 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:25:15,621 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:25:15,621 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:25:13" (1/3) ... [2021-10-21 19:25:15,622 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73edc3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:25:15, skipping insertion in model container [2021-10-21 19:25:15,622 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:25:15,622 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:25:14" (2/3) ... [2021-10-21 19:25:15,623 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@73edc3bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:25:15, skipping insertion in model container [2021-10-21 19:25:15,623 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:25:15,623 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:25:15" (3/3) ... [2021-10-21 19:25:15,624 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product60.cil.c [2021-10-21 19:25:15,679 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:25:15,679 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:25:15,680 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:25:15,680 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:25:15,680 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:25:15,680 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:25:15,680 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:25:15,680 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:25:15,705 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 134 states, 133 states have (on average 1.5112781954887218) internal successors, (201), 133 states have internal predecessors, (201), 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 19:25:15,748 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2021-10-21 19:25:15,748 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:25:15,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:25:15,757 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:25:15,757 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:25:15,757 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:25:15,760 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 134 states, 133 states have (on average 1.5112781954887218) internal successors, (201), 133 states have internal predecessors, (201), 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 19:25:15,771 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 87 [2021-10-21 19:25:15,773 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:25:15,773 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:25:15,774 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:25:15,774 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:25:15,778 INFO L791 eck$LassoCheckResult]: Stem: 121#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 38#L-1true havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 61#L75true 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; 20#L83true main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 5#L175true assume 0 != main_~tmp~0; 78#L151true havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 62#L566-1true [2021-10-21 19:25:15,779 INFO L793 eck$LassoCheckResult]: Loop: 62#L566-1true assume !false; 75#L851true assume test_~splverifierCounter~0 < 4; 11#L852true test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 109#L860true assume !(0 != test_~tmp~10); 103#L860-1true test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 76#L870true assume !(0 != test_~tmp___0~3); 21#L870-1true test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 31#L880true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 123#L888-1true assume !(0 != ~pumpRunning~0); 72#L609true assume !(0 != ~systemActive~0); 105#L616true havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 27#L984true __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 112#L566true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 62#L566-1true [2021-10-21 19:25:15,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:15,784 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:25:15,793 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:15,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622682033] [2021-10-21 19:25:15,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:15,795 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,069 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:16,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,204 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:25:16,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,206 INFO L82 PathProgramCache]: Analyzing trace with hash -1669554868, now seen corresponding path program 1 times [2021-10-21 19:25:16,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,207 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269743927] [2021-10-21 19:25:16,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,208 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:16,272 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 19:25:16,273 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:25:16,273 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269743927] [2021-10-21 19:25:16,273 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269743927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:25:16,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:25:16,274 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:25:16,274 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348753521] [2021-10-21 19:25:16,278 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:25:16,279 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:25:16,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:25:16,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:25:16,299 INFO L87 Difference]: Start difference. First operand has 134 states, 133 states have (on average 1.5112781954887218) internal successors, (201), 133 states have internal predecessors, (201), 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 19:25:16,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:25:16,388 INFO L93 Difference]: Finished difference Result 262 states and 378 transitions. [2021-10-21 19:25:16,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:25:16,392 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 262 states and 378 transitions. [2021-10-21 19:25:16,402 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 170 [2021-10-21 19:25:16,415 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 262 states to 248 states and 363 transitions. [2021-10-21 19:25:16,416 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 248 [2021-10-21 19:25:16,419 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 248 [2021-10-21 19:25:16,419 INFO L73 IsDeterministic]: Start isDeterministic. Operand 248 states and 363 transitions. [2021-10-21 19:25:16,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:25:16,422 INFO L681 BuchiCegarLoop]: Abstraction has 248 states and 363 transitions. [2021-10-21 19:25:16,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states and 363 transitions. [2021-10-21 19:25:16,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 246. [2021-10-21 19:25:16,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 246 states have (on average 1.4634146341463414) internal successors, (360), 245 states have internal predecessors, (360), 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 19:25:16,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 360 transitions. [2021-10-21 19:25:16,467 INFO L704 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2021-10-21 19:25:16,467 INFO L587 BuchiCegarLoop]: Abstraction has 246 states and 360 transitions. [2021-10-21 19:25:16,467 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:25:16,467 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 360 transitions. [2021-10-21 19:25:16,470 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 168 [2021-10-21 19:25:16,471 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:25:16,471 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:25:16,471 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:25:16,472 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:25:16,472 INFO L791 eck$LassoCheckResult]: Stem: 543#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 470#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 471#L75 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; 440#L83 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 407#L175 assume 0 != main_~tmp~0; 408#L151 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 515#L566-1 [2021-10-21 19:25:16,472 INFO L793 eck$LassoCheckResult]: Loop: 515#L566-1 assume !false; 600#L851 assume test_~splverifierCounter~0 < 4; 601#L852 test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 637#L860 assume !(0 != test_~tmp~10); 635#L860-1 test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 634#L870 assume !(0 != test_~tmp___0~3); 632#L870-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 630#L880 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 459#L888-1 assume !(0 != ~pumpRunning~0); 624#L609 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 623#L667 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 612#L641-1 assume !(0 == ~pumpRunning~0); 606#L616 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 605#L984 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 603#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 515#L566-1 [2021-10-21 19:25:16,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,473 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:25:16,473 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,473 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249011982] [2021-10-21 19:25:16,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,474 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,544 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:16,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,672 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:25:16,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,674 INFO L82 PathProgramCache]: Analyzing trace with hash -1405144267, now seen corresponding path program 1 times [2021-10-21 19:25:16,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,674 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322445011] [2021-10-21 19:25:16,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,674 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:25:16,691 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 19:25:16,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:25:16,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322445011] [2021-10-21 19:25:16,692 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322445011] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:25:16,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:25:16,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:25:16,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067541594] [2021-10-21 19:25:16,693 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:25:16,694 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:25:16,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:25:16,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:25:16,694 INFO L87 Difference]: Start difference. First operand 246 states and 360 transitions. cyclomatic complexity: 117 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 19:25:16,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:25:16,809 INFO L93 Difference]: Finished difference Result 329 states and 460 transitions. [2021-10-21 19:25:16,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:25:16,810 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 329 states and 460 transitions. [2021-10-21 19:25:16,815 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-10-21 19:25:16,822 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 329 states to 329 states and 460 transitions. [2021-10-21 19:25:16,823 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 329 [2021-10-21 19:25:16,825 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 329 [2021-10-21 19:25:16,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 329 states and 460 transitions. [2021-10-21 19:25:16,832 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:25:16,833 INFO L681 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2021-10-21 19:25:16,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states and 460 transitions. [2021-10-21 19:25:16,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 329. [2021-10-21 19:25:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 329 states, 329 states have (on average 1.3981762917933132) internal successors, (460), 328 states have internal predecessors, (460), 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 19:25:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 329 states to 329 states and 460 transitions. [2021-10-21 19:25:16,870 INFO L704 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2021-10-21 19:25:16,870 INFO L587 BuchiCegarLoop]: Abstraction has 329 states and 460 transitions. [2021-10-21 19:25:16,870 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:25:16,870 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 329 states and 460 transitions. [2021-10-21 19:25:16,887 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 231 [2021-10-21 19:25:16,887 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:25:16,888 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:25:16,888 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:25:16,888 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 19:25:16,889 INFO L791 eck$LassoCheckResult]: Stem: 1140#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~string27.base, #t~string27.offset := #Ultimate.allocOnStack(30);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(9);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(21);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(30);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(9);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(21);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(30);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(9);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(25);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(30);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(9);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(110, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string55.base, #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(102, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 3 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string57.base, #t~string57.offset, 1);call write~init~int(80, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(117, #t~string57.base, 2 + #t~string57.offset, 1);call write~init~int(109, #t~string57.base, 3 + #t~string57.offset, 1);call write~init~int(112, #t~string57.base, 4 + #t~string57.offset, 1);call write~init~int(58, #t~string57.base, 5 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 6 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string59.base, #t~string59.offset, 1);call write~init~int(110, #t~string59.base, 1 + #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 2 + #t~string59.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string61.base, #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 1 + #t~string61.offset, 1);call write~init~int(102, #t~string61.base, 2 + #t~string61.offset, 1);call write~init~int(0, #t~string61.base, 3 + #t~string61.offset, 1);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string63.base, #t~string63.offset, 1);call write~init~int(32, #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(2);call write~init~int(10, #t~string65.base, #t~string65.offset, 1);call write~init~int(0, #t~string65.base, 1 + #t~string65.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(13);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string75.base, #t~string75.offset, 1);call write~init~int(77, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(101, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(116, #t~string75.base, 3 + #t~string75.offset, 1);call write~init~int(104, #t~string75.base, 4 + #t~string75.offset, 1);call write~init~int(58, #t~string75.base, 5 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 6 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string77.base, #t~string77.offset, 1);call write~init~int(82, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(73, #t~string77.base, 2 + #t~string77.offset, 1);call write~init~int(84, #t~string77.base, 3 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 4 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string79.base, #t~string79.offset, 1);call write~init~int(75, #t~string79.base, 1 + #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 2 + #t~string79.offset, 1);call #t~string81.base, #t~string81.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string81.base, #t~string81.offset, 1);call write~init~int(0, #t~string81.base, 1 + #t~string81.offset, 1);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1050#L-1 havoc main_#res;havoc main_#t~ret8, main_~retValue_acc~2, main_~tmp~0;havoc main_~retValue_acc~2;havoc main_~tmp~0; 1051#L75 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; 1019#L83 main_#t~ret8 := valid_product_#res;main_~tmp~0 := main_#t~ret8;havoc main_#t~ret8; 988#L175 assume 0 != main_~tmp~0; 989#L151 havoc test_#t~nondet68, test_#t~nondet69, test_#t~nondet70, test_#t~nondet71, test_~splverifierCounter~0, test_~tmp~10, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~10;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1049#L566-1 [2021-10-21 19:25:16,889 INFO L793 eck$LassoCheckResult]: Loop: 1049#L566-1 assume !false; 1082#L851 assume test_~splverifierCounter~0 < 4; 1002#L852 test_~tmp~10 := test_#t~nondet68;havoc test_#t~nondet68; 1003#L860 assume !(0 != test_~tmp~10); 1001#L860-1 test_~tmp___0~3 := test_#t~nondet69;havoc test_#t~nondet69; 1098#L870 assume !(0 != test_~tmp___0~3); 1020#L870-1 test_~tmp___2~0 := test_#t~nondet70;havoc test_#t~nondet70; 1021#L880 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 1040#L888-1 assume !(0 != ~pumpRunning~0); 1209#L609 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret47, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 1208#L667 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret46, processEnvironment__wrappee__highWaterSensor_~tmp~5;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5; 1204#L641-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret66, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~8, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~8;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~12;havoc isHighWaterSensorDry_~retValue_acc~12; 1144#L992-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~12; 1120#L997-1 isHighWaterLevel_#t~ret66 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~8 := isHighWaterLevel_#t~ret66;havoc isHighWaterLevel_#t~ret66; 1118#L787-3 assume 0 != isHighWaterLevel_~tmp~8;isHighWaterLevel_~tmp___0~1 := 0; 1060#L787-5 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 1029#L793-1 processEnvironment__wrappee__highWaterSensor_#t~ret46 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~5 := processEnvironment__wrappee__highWaterSensor_#t~ret46;havoc processEnvironment__wrappee__highWaterSensor_#t~ret46; 1030#L645-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5); 1062#L616 havoc __utac_acc__Specification4_spec__1_#t~ret44, __utac_acc__Specification4_spec__1_#t~ret45, __utac_acc__Specification4_spec__1_~tmp~4, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~4;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~11;havoc getWaterLevel_~retValue_acc~11;getWaterLevel_~retValue_acc~11 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~11; 1032#L984 __utac_acc__Specification4_spec__1_#t~ret44 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~4 := __utac_acc__Specification4_spec__1_#t~ret44;havoc __utac_acc__Specification4_spec__1_#t~ret44; 1033#L566 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~4); 1049#L566-1 [2021-10-21 19:25:16,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,889 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 19:25:16,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,890 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597990740] [2021-10-21 19:25:16,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,890 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,930 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:16,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,978 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:25:16,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,979 INFO L82 PathProgramCache]: Analyzing trace with hash 1224409665, now seen corresponding path program 1 times [2021-10-21 19:25:16,979 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866341744] [2021-10-21 19:25:16,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,980 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:16,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,987 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:16,994 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:25:16,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:25:16,994 INFO L82 PathProgramCache]: Analyzing trace with hash 1680480859, now seen corresponding path program 1 times [2021-10-21 19:25:16,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:25:16,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292502810] [2021-10-21 19:25:16,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:25:16,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:25:17,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:17,055 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:25:17,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:25:17,123 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:26:15,810 WARN L207 SmtUtils]: Spent 58.42 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:27:15,742 WARN L207 SmtUtils]: Spent 28.24 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:27:15,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:27:15 BoogieIcfgContainer [2021-10-21 19:27:15,853 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:27:15,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:27:15,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:27:15,854 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:27:15,854 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:25:15" (3/4) ... [2021-10-21 19:27:15,878 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:27:15,992 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:27:15,992 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:27:15,993 INFO L168 Benchmark]: Toolchain (without parser) took 122189.57 ms. Allocated memory was 92.3 MB in the beginning and 148.9 MB in the end (delta: 56.6 MB). Free memory was 70.9 MB in the beginning and 60.9 MB in the end (delta: 9.9 MB). Peak memory consumption was 66.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,994 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 67.6 MB in the beginning and 67.6 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:27:15,995 INFO L168 Benchmark]: CACSL2BoogieTranslator took 609.71 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 57.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,995 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.18 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 53.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,996 INFO L168 Benchmark]: Boogie Preprocessor took 83.79 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 50.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,997 INFO L168 Benchmark]: RCFGBuilder took 1014.42 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 56.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,998 INFO L168 Benchmark]: BuchiAutomizer took 120238.80 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 56.8 MB in the beginning and 64.1 MB in the end (delta: -7.3 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:15,998 INFO L168 Benchmark]: Witness Printer took 138.45 ms. Allocated memory is still 148.9 MB. Free memory was 64.1 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:27:16,003 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 92.3 MB. Free memory was 67.6 MB in the beginning and 67.6 MB in the end (delta: 40.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 609.71 ms. Allocated memory is still 92.3 MB. Free memory was 70.7 MB in the beginning and 57.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.18 ms. Allocated memory is still 92.3 MB. Free memory was 57.4 MB in the beginning and 53.7 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 83.79 ms. Allocated memory is still 92.3 MB. Free memory was 53.5 MB in the beginning and 50.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1014.42 ms. Allocated memory was 92.3 MB in the beginning and 111.1 MB in the end (delta: 18.9 MB). Free memory was 50.7 MB in the beginning and 56.8 MB in the end (delta: -6.1 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 120238.80 ms. Allocated memory was 111.1 MB in the beginning and 148.9 MB in the end (delta: 37.7 MB). Free memory was 56.8 MB in the beginning and 64.1 MB in the end (delta: -7.3 MB). Peak memory consumption was 68.6 MB. Max. memory is 16.1 GB. * Witness Printer took 138.45 ms. Allocated memory is still 148.9 MB. Free memory was 64.1 MB in the beginning and 60.9 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 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 329 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 120.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 119.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 67.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 329 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 361 SDtfs, 320 SDslu, 248 SDs, 0 SdLazy, 41 SolverSat, 26 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 103.4ms 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: 850]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=3289} State at position 1 is {retValue_acc=1, NULL=0, NULL=3295, NULL=0, NULL=3289, NULL=0, NULL=3304, NULL=0, methaneLevelCritical=0, retValue_acc=0, tmp___1=0, NULL=3315, NULL=0, NULL=3296, NULL=3313, cleanupTimeShifts=4, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d8e6a97=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@829002f=0, NULL=0, waterLevel=1, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69764cca=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18c4d848=0, \result=1, head=0, pumpRunning=0, tmp=1, NULL=3297, NULL=0, \result=1, NULL=3310, NULL=0, tmp=1, NULL=0, NULL=3300, NULL=0, tmp___0=0, tmp=1, NULL=0, NULL=3293, NULL=3303, NULL=3312, head=0, NULL=0, tmp=0, NULL=3292, NULL=3294, NULL=0, NULL=0, NULL=0, retValue_acc=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@709b9c98=0, NULL=0, NULL=3306, NULL=3311, NULL=3314, tmp___0=0, NULL=0, NULL=3309, NULL=0, tmp___0=0, NULL=3316, NULL=3317, tmp=0, NULL=3299, NULL=0, NULL=0, systemActive=1, \result=1, NULL=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=3298, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@133545ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a1ebb4f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@a204a44=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f6ec967=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74b27efe=76, NULL=3307, NULL=3291, retValue_acc=1, tmp=0, retValue_acc=1, tmp___2=76, splverifierCounter=0, NULL=0, NULL=0, NULL=3290, NULL=3305, NULL=3308, NULL=3301, NULL=3302} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L88] int cleanupTimeShifts = 4; [L358] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L602] int pumpRunning = 0; [L603] int systemActive = 1; [L909] int waterLevel = 1; [L910] int methaneLevelCritical = 0; [L166] int retValue_acc ; [L167] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L173] tmp = valid_product() [L175] COND TRUE \read(tmp) [L841] int splverifierCounter ; [L842] int tmp ; [L843] int tmp___0 ; [L844] int tmp___1 ; [L845] int tmp___2 ; [L848] splverifierCounter = 0 Loop: [L850] COND TRUE 1 [L852] COND TRUE splverifierCounter < 4 [L858] tmp = __VERIFIER_nondet_int() [L860] COND FALSE !(\read(tmp)) [L868] tmp___0 = __VERIFIER_nondet_int() [L870] COND FALSE !(\read(tmp___0)) [L878] tmp___2 = __VERIFIER_nondet_int() [L880] COND TRUE \read(tmp___2) [L835] systemActive = 1 [L609] COND FALSE !(\read(pumpRunning)) [L616] COND TRUE \read(systemActive) [L664] int tmp ; [L667] COND FALSE !(\read(pumpRunning)) [L638] int tmp ; [L641] COND TRUE ! pumpRunning [L779] int retValue_acc ; [L780] int tmp ; [L781] int tmp___0 ; [L989] int retValue_acc ; [L992] COND TRUE waterLevel < 2 [L993] retValue_acc = 1 [L994] return (retValue_acc); [L785] tmp = isHighWaterSensorDry() [L787] COND TRUE \read(tmp) [L788] tmp___0 = 0 [L792] retValue_acc = tmp___0 [L793] return (retValue_acc); [L643] tmp = isHighWaterLevel() [L645] COND FALSE !(\read(tmp)) [L559] int tmp ; [L560] int tmp___0 ; [L980] int retValue_acc ; [L983] retValue_acc = waterLevel [L984] return (retValue_acc); [L564] tmp = getWaterLevel() [L566] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:27:16,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ff063d8e-e503-47ab-b676-207a5e49cea6/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...