./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.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_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/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_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/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_483d28ef-0420-4778-b30a-ed302c18b3c2/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 f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 ............................................................................................................................................................................................................................................................................................................................................................................. 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 19:43:44,321 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:43:44,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:43:44,365 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:43:44,365 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:43:44,367 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:43:44,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:43:44,372 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:43:44,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:43:44,376 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:43:44,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:43:44,380 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:43:44,380 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:43:44,382 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:43:44,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:43:44,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:43:44,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:43:44,389 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:43:44,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:43:44,395 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:43:44,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:43:44,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:43:44,402 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:43:44,403 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:43:44,408 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:43:44,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:43:44,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:43:44,410 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:43:44,411 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:43:44,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:43:44,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:43:44,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:43:44,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:43:44,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:43:44,418 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:43:44,418 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:43:44,419 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:43:44,420 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:43:44,420 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:43:44,422 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:43:44,423 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:43:44,424 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:43:44,457 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:43:44,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:43:44,458 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:43:44,458 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:43:44,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:43:44,460 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:43:44,460 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:43:44,461 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:43:44,461 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:43:44,461 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:43:44,462 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:43:44,462 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:43:44,462 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:43:44,463 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:43:44,463 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:43:44,463 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:43:44,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:43:44,464 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:43:44,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:43:44,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:43:44,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:43:44,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:43:44,466 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:43:44,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:43:44,466 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:43:44,467 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:43:44,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:43:44,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:43:44,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:43:44,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:43:44,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:43:44,469 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:43:44,470 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:43:44,470 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_483d28ef-0420-4778-b30a-ed302c18b3c2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f629674af99a09af382dbe6cebebcc4fb4b60762fab54c6aa0b3a2dc7cf784d0 [2021-10-21 19:43:44,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:43:44,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:43:44,817 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:43:44,818 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:43:44,819 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:43:44,820 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-10-21 19:43:44,930 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/data/8c46e495b/2185837b06bd47a7b78ce7be6fc946c3/FLAGfebb1f752 [2021-10-21 19:43:45,538 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:43:45,538 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c [2021-10-21 19:43:45,551 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/data/8c46e495b/2185837b06bd47a7b78ce7be6fc946c3/FLAGfebb1f752 [2021-10-21 19:43:45,856 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/data/8c46e495b/2185837b06bd47a7b78ce7be6fc946c3 [2021-10-21 19:43:45,860 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:43:45,862 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:43:45,865 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:43:45,865 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:43:45,869 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:43:45,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:43:45" (1/1) ... [2021-10-21 19:43:45,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5150da87 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:45, skipping insertion in model container [2021-10-21 19:43:45,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:43:45" (1/1) ... [2021-10-21 19:43:45,879 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:43:45,929 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:43:46,257 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_483d28ef-0420-4778-b30a-ed302c18b3c2/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2021-10-21 19:43:46,257 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:43:46,269 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:43:46,348 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_483d28ef-0420-4778-b30a-ed302c18b3c2/sv-benchmarks/c/product-lines/minepump_spec4_product12.cil.c[17234,17247] [2021-10-21 19:43:46,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:43:46,380 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:43:46,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46 WrapperNode [2021-10-21 19:43:46,381 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:43:46,382 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:43:46,383 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:43:46,383 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:43:46,391 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,421 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:43:46,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:43:46,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:43:46,455 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:43:46,464 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,464 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,468 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,477 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,493 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,495 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,511 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:43:46,512 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:43:46,512 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:43:46,513 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:43:46,514 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (1/1) ... [2021-10-21 19:43:46,525 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:43:46,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:43:46,557 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:43:46,577 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:43:46,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:43:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:43:46,619 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:43:46,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:43:47,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:43:47,594 INFO L299 CfgBuilder]: Removed 72 assume(true) statements. [2021-10-21 19:43:47,597 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:43:47 BoogieIcfgContainer [2021-10-21 19:43:47,597 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:43:47,598 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:43:47,599 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:43:47,603 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:43:47,604 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:43:47,604 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:43:45" (1/3) ... [2021-10-21 19:43:47,606 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@674a2adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:43:47, skipping insertion in model container [2021-10-21 19:43:47,606 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:43:47,606 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:43:46" (2/3) ... [2021-10-21 19:43:47,607 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@674a2adb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:43:47, skipping insertion in model container [2021-10-21 19:43:47,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:43:47,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:43:47" (3/3) ... [2021-10-21 19:43:47,609 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product12.cil.c [2021-10-21 19:43:47,664 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:43:47,664 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:43:47,664 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:43:47,664 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:43:47,665 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:43:47,665 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:43:47,665 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:43:47,665 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:43:47,687 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 19:43:47,724 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-10-21 19:43:47,724 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:43:47,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:43:47,734 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:43:47,734 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:47,734 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:43:47,734 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 19:43:47,749 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 35 [2021-10-21 19:43:47,749 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:43:47,749 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:43:47,751 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:43:47,751 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:47,768 INFO L791 eck$LassoCheckResult]: Stem: 49#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 37#L-1true havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 53#L413true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 29#L421true main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 32#L508true assume 0 != main_~tmp~3; 25#L485true havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 19#L146-1true [2021-10-21 19:43:47,768 INFO L793 eck$LassoCheckResult]: Loop: 19#L146-1true assume !false; 52#L179true assume test_~splverifierCounter~0 < 4; 3#L180true test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 16#L188true assume !(0 != test_~tmp~1); 41#L188-1true test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 8#L198true assume !(0 != test_~tmp___0~1); 23#L198-1true test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 35#L208true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 55#L216-1true assume !(0 != ~pumpRunning~0); 36#L247true assume !(0 != ~systemActive~0); 50#L254true havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 44#L131true __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 20#L146true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 19#L146-1true [2021-10-21 19:43:47,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:47,774 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:43:47,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:47,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458684844] [2021-10-21 19:43:47,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:47,789 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,193 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:48,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,395 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:48,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:48,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1672941108, now seen corresponding path program 1 times [2021-10-21 19:43:48,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:48,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799002350] [2021-10-21 19:43:48,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:48,400 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:43:48,474 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 19:43:48,474 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:43:48,475 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799002350] [2021-10-21 19:43:48,476 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799002350] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:43:48,476 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:43:48,477 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:43:48,477 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646187905] [2021-10-21 19:43:48,483 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:43:48,484 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:43:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:43:48,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:43:48,528 INFO L87 Difference]: Start difference. First operand has 56 states, 55 states have (on average 1.5272727272727273) internal successors, (84), 55 states have internal predecessors, (84), 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 19:43:48,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:43:48,626 INFO L93 Difference]: Finished difference Result 106 states and 144 transitions. [2021-10-21 19:43:48,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:43:48,630 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 106 states and 144 transitions. [2021-10-21 19:43:48,641 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 66 [2021-10-21 19:43:48,647 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 106 states to 92 states and 129 transitions. [2021-10-21 19:43:48,650 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 92 [2021-10-21 19:43:48,651 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 92 [2021-10-21 19:43:48,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 92 states and 129 transitions. [2021-10-21 19:43:48,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:43:48,656 INFO L681 BuchiCegarLoop]: Abstraction has 92 states and 129 transitions. [2021-10-21 19:43:48,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states and 129 transitions. [2021-10-21 19:43:48,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 90. [2021-10-21 19:43:48,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 90 states have (on average 1.4) internal successors, (126), 89 states have internal predecessors, (126), 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 19:43:48,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 126 transitions. [2021-10-21 19:43:48,716 INFO L704 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-10-21 19:43:48,717 INFO L587 BuchiCegarLoop]: Abstraction has 90 states and 126 transitions. [2021-10-21 19:43:48,717 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:43:48,717 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 90 states and 126 transitions. [2021-10-21 19:43:48,726 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 64 [2021-10-21 19:43:48,726 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:43:48,727 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:43:48,729 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:43:48,731 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:43:48,732 INFO L791 eck$LassoCheckResult]: Stem: 221#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(13);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string28.base, #t~string28.offset, 1);call write~init~int(110, #t~string28.base, 1 + #t~string28.offset, 1);call write~init~int(0, #t~string28.base, 2 + #t~string28.offset, 1);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string30.base, #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 1 + #t~string30.offset, 1);call write~init~int(102, #t~string30.base, 2 + #t~string30.offset, 1);call write~init~int(0, #t~string30.base, 3 + #t~string30.offset, 1);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string32.base, #t~string32.offset, 1);call write~init~int(80, #t~string32.base, 1 + #t~string32.offset, 1);call write~init~int(117, #t~string32.base, 2 + #t~string32.offset, 1);call write~init~int(109, #t~string32.base, 3 + #t~string32.offset, 1);call write~init~int(112, #t~string32.base, 4 + #t~string32.offset, 1);call write~init~int(58, #t~string32.base, 5 + #t~string32.offset, 1);call write~init~int(0, #t~string32.base, 6 + #t~string32.offset, 1);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string34.base, #t~string34.offset, 1);call write~init~int(110, #t~string34.base, 1 + #t~string34.offset, 1);call write~init~int(0, #t~string34.base, 2 + #t~string34.offset, 1);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string36.base, #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 1 + #t~string36.offset, 1);call write~init~int(102, #t~string36.base, 2 + #t~string36.offset, 1);call write~init~int(0, #t~string36.base, 3 + #t~string36.offset, 1);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string38.base, #t~string38.offset, 1);call write~init~int(32, #t~string38.base, 1 + #t~string38.offset, 1);call write~init~int(0, #t~string38.base, 2 + #t~string38.offset, 1);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string40.base, #t~string40.offset, 1);call write~init~int(0, #t~string40.base, 1 + #t~string40.offset, 1);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(30);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(9);call #t~string63.base, #t~string63.offset := #Ultimate.allocOnStack(21);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(30);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(9);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(21);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(30);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(9);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(25);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(30);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(9);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0; 216#L-1 havoc main_#res;havoc main_#t~ret42, main_~retValue_acc~6, main_~tmp~3;havoc main_~retValue_acc~6;havoc main_~tmp~3; 217#L413 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 207#L421 main_#t~ret42 := valid_product_#res;main_~tmp~3 := main_#t~ret42;havoc main_#t~ret42; 208#L508 assume 0 != main_~tmp~3; 201#L485 havoc test_#t~nondet19, test_#t~nondet20, test_#t~nondet21, test_#t~nondet22, test_~splverifierCounter~0, test_~tmp~1, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~1;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 202#L146-1 [2021-10-21 19:43:48,732 INFO L793 eck$LassoCheckResult]: Loop: 202#L146-1 assume !false; 238#L179 assume test_~splverifierCounter~0 < 4; 237#L180 test_~tmp~1 := test_#t~nondet19;havoc test_#t~nondet19; 236#L188 assume !(0 != test_~tmp~1); 234#L188-1 test_~tmp___0~1 := test_#t~nondet20;havoc test_#t~nondet20; 179#L198 assume !(0 != test_~tmp___0~1); 174#L198-1 test_~tmp___2~0 := test_#t~nondet21;havoc test_#t~nondet21; 199#L208 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 211#L216-1 assume !(0 != ~pumpRunning~0); 214#L247 assume 0 != ~systemActive~0; 215#L254 havoc __utac_acc__Specification4_spec__1_#t~ret17, __utac_acc__Specification4_spec__1_#t~ret18, __utac_acc__Specification4_spec__1_~tmp~0, __utac_acc__Specification4_spec__1_~tmp___0~0;havoc __utac_acc__Specification4_spec__1_~tmp~0;havoc __utac_acc__Specification4_spec__1_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~1;havoc getWaterLevel_~retValue_acc~1;getWaterLevel_~retValue_acc~1 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~1; 243#L131 __utac_acc__Specification4_spec__1_#t~ret17 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~0 := __utac_acc__Specification4_spec__1_#t~ret17;havoc __utac_acc__Specification4_spec__1_#t~ret17; 241#L146 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~0); 202#L146-1 [2021-10-21 19:43:48,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:48,732 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:43:48,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:48,733 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272141299] [2021-10-21 19:43:48,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:48,733 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,806 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,929 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:48,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:48,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1673030481, now seen corresponding path program 1 times [2021-10-21 19:43:48,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:48,930 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521007648] [2021-10-21 19:43:48,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:48,930 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:48,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,937 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:48,948 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:43:48,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:43:48,949 INFO L82 PathProgramCache]: Analyzing trace with hash 41248457, now seen corresponding path program 1 times [2021-10-21 19:43:48,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:43:48,950 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135616294] [2021-10-21 19:43:48,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:43:48,950 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:43:49,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:49,040 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:43:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:43:49,184 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:44:52,024 WARN L207 SmtUtils]: Spent 1.04 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:45:49,723 WARN L207 SmtUtils]: Spent 27.46 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:45:49,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:45:49 BoogieIcfgContainer [2021-10-21 19:45:49,816 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:45:49,816 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:45:49,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:45:49,817 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:45:49,817 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:43:47" (3/4) ... [2021-10-21 19:45:49,819 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:45:49,863 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:45:49,863 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:45:49,864 INFO L168 Benchmark]: Toolchain (without parser) took 124001.74 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 84.6 MB in the beginning and 35.8 MB in the end (delta: 48.8 MB). Peak memory consumption was 75.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,865 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:45:49,866 INFO L168 Benchmark]: CACSL2BoogieTranslator took 516.72 ms. Allocated memory is still 117.4 MB. Free memory was 84.3 MB in the beginning and 87.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.02 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 84.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,867 INFO L168 Benchmark]: Boogie Preprocessor took 57.14 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,867 INFO L168 Benchmark]: RCFGBuilder took 1085.13 ms. Allocated memory is still 117.4 MB. Free memory was 82.9 MB in the beginning and 81.9 MB in the end (delta: 965.3 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,868 INFO L168 Benchmark]: BuchiAutomizer took 122217.64 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 81.9 MB in the beginning and 37.7 MB in the end (delta: 44.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,869 INFO L168 Benchmark]: Witness Printer took 46.89 ms. Allocated memory is still 142.6 MB. Free memory was 37.7 MB in the beginning and 35.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:45:49,872 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 83.9 MB. Free memory is still 38.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 516.72 ms. Allocated memory is still 117.4 MB. Free memory was 84.3 MB in the beginning and 87.5 MB in the end (delta: -3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 71.02 ms. Allocated memory is still 117.4 MB. Free memory was 87.5 MB in the beginning and 84.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 57.14 ms. Allocated memory is still 117.4 MB. Free memory was 84.9 MB in the beginning and 82.9 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1085.13 ms. Allocated memory is still 117.4 MB. Free memory was 82.9 MB in the beginning and 81.9 MB in the end (delta: 965.3 kB). Peak memory consumption was 28.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122217.64 ms. Allocated memory was 117.4 MB in the beginning and 142.6 MB in the end (delta: 25.2 MB). Free memory was 81.9 MB in the beginning and 37.7 MB in the end (delta: 44.1 MB). Peak memory consumption was 73.0 MB. Max. memory is 16.1 GB. * Witness Printer took 46.89 ms. Allocated memory is still 142.6 MB. Free memory was 37.7 MB in the beginning and 35.8 MB in the end (delta: 2.0 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 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 90 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 121.7s. Construction of modules took 0.0s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 43.2ms AutomataMinimizationTime, 1 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 90 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 74 SDtfs, 70 SDslu, 62 SDs, 0 SdLazy, 10 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 178]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=14858} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=14861, NULL=0, NULL=14858, NULL=0, NULL=46212, retValue_acc=0, NULL=0, NULL=46221, NULL=46224, NULL=46215, NULL=46219, methaneLevelCritical=0, NULL=14859, NULL=0, NULL=0, tmp___1=0, NULL=0, NULL=0, NULL=0, tmp___0=0, NULL=46227, NULL=46220, cleanupTimeShifts=4, NULL=46225, tmp=0, NULL=14863, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ca6311f=0, NULL=14862, NULL=0, NULL=14860, \result=1, retValue_acc=1, head=0, pumpRunning=0, \result=0, tmp=1, NULL=46216, NULL=0, NULL=46213, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@343d302e=0, retValue_acc=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@442c6f12=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46ab493b=0, NULL=46228, tmp=1, NULL=0, NULL=0, NULL=46210, NULL=0, NULL=0, NULL=14864, tmp___2=68, NULL=0, NULL=46222, tmp___0=0, NULL=46209, splverifierCounter=0, NULL=0, NULL=46211, NULL=46208, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e5813fa=0, NULL=46217, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22c1d2e=68, head=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@11c32e42=0, NULL=0, NULL=0, NULL=46218, NULL=14865, NULL=46226, NULL=46223, NULL=46214} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L56] int waterLevel = 1; [L57] int methaneLevelCritical = 0; [L240] int pumpRunning = 0; [L241] int systemActive = 1; [L426] int cleanupTimeShifts = 4; [L691] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L499] int retValue_acc ; [L500] int tmp ; [L417] int retValue_acc ; [L420] retValue_acc = 1 [L421] return (retValue_acc); [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L169] int splverifierCounter ; [L170] int tmp ; [L171] int tmp___0 ; [L172] int tmp___1 ; [L173] int tmp___2 ; [L176] splverifierCounter = 0 Loop: [L178] COND TRUE 1 [L180] COND TRUE splverifierCounter < 4 [L186] tmp = __VERIFIER_nondet_int() [L188] COND FALSE !(\read(tmp)) [L196] tmp___0 = __VERIFIER_nondet_int() [L198] COND FALSE !(\read(tmp___0)) [L206] tmp___2 = __VERIFIER_nondet_int() [L208] COND TRUE \read(tmp___2) [L383] systemActive = 1 [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L139] int tmp ; [L140] int tmp___0 ; [L127] int retValue_acc ; [L130] retValue_acc = waterLevel [L131] return (retValue_acc); [L144] tmp = getWaterLevel() [L146] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:45:49,951 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_483d28ef-0420-4778-b30a-ed302c18b3c2/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...