./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX --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 8db025334db2e06ebc154a332660702acdbfca34e28313be5c0c817acc07c5f4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 08:58:55,309 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 08:58:55,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 08:58:55,377 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 08:58:55,377 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 08:58:55,379 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 08:58:55,382 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 08:58:55,386 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 08:58:55,389 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 08:58:55,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 08:58:55,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 08:58:55,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 08:58:55,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 08:58:55,398 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 08:58:55,400 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 08:58:55,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 08:58:55,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 08:58:55,406 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 08:58:55,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 08:58:55,413 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 08:58:55,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 08:58:55,424 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 08:58:55,426 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 08:58:55,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 08:58:55,442 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 08:58:55,448 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 08:58:55,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 08:58:55,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 08:58:55,451 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 08:58:55,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 08:58:55,453 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 08:58:55,454 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 08:58:55,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 08:58:55,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 08:58:55,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 08:58:55,458 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 08:58:55,459 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 08:58:55,459 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 08:58:55,459 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 08:58:55,460 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 08:58:55,461 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 08:58:55,462 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-09 08:58:55,508 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 08:58:55,508 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 08:58:55,509 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 08:58:55,509 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 08:58:55,511 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 08:58:55,511 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 08:58:55,511 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 08:58:55,512 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-09 08:58:55,512 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-09 08:58:55,512 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-09 08:58:55,513 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-09 08:58:55,513 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-09 08:58:55,513 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-09 08:58:55,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 08:58:55,514 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 08:58:55,514 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-09 08:58:55,514 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 08:58:55,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 08:58:55,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 08:58:55,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-09 08:58:55,516 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-09 08:58:55,516 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-09 08:58:55,516 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 08:58:55,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 08:58:55,517 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-09 08:58:55,517 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 08:58:55,517 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-09 08:58:55,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 08:58:55,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 08:58:55,518 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 08:58:55,519 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 08:58:55,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 08:58:55,520 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-09 08:58:55,520 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_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8db025334db2e06ebc154a332660702acdbfca34e28313be5c0c817acc07c5f4 [2021-11-09 08:58:55,793 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 08:58:55,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 08:58:55,820 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 08:58:55,821 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 08:58:55,822 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 08:58:55,824 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c [2021-11-09 08:58:55,897 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/data/552b9d8e2/35c08f4c9f664b468a96454e07d63a7f/FLAG82856c159 [2021-11-09 08:58:56,539 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 08:58:56,540 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c [2021-11-09 08:58:56,552 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/data/552b9d8e2/35c08f4c9f664b468a96454e07d63a7f/FLAG82856c159 [2021-11-09 08:58:56,753 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/data/552b9d8e2/35c08f4c9f664b468a96454e07d63a7f [2021-11-09 08:58:56,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 08:58:56,759 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 08:58:56,761 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:56,761 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 08:58:56,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 08:58:56,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:56" (1/1) ... [2021-11-09 08:58:56,766 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76b429bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:56, skipping insertion in model container [2021-11-09 08:58:56,767 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 08:58:56" (1/1) ... [2021-11-09 08:58:56,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 08:58:56,815 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 08:58:56,974 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_a8afa413-8abe-476c-958d-d8f3a652fa16/sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c[2984,2997] [2021-11-09 08:58:57,069 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:57,080 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 08:58:57,104 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_a8afa413-8abe-476c-958d-d8f3a652fa16/sv-benchmarks/c/product-lines/minepump_spec4_product29.cil.c[2984,2997] [2021-11-09 08:58:57,217 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 08:58:57,238 INFO L208 MainTranslator]: Completed translation [2021-11-09 08:58:57,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57 WrapperNode [2021-11-09 08:58:57,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 08:58:57,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:57,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 08:58:57,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 08:58:57,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,283 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,353 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 08:58:57,356 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 08:58:57,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 08:58:57,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 08:58:57,363 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,363 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,369 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,369 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,382 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,392 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,398 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 08:58:57,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 08:58:57,399 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 08:58:57,399 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 08:58:57,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (1/1) ... [2021-11-09 08:58:57,425 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-09 08:58:57,449 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 08:58:57,487 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-09 08:58:57,492 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-09 08:58:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 08:58:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 08:58:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 08:58:57,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 08:58:58,427 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 08:58:58,427 INFO L299 CfgBuilder]: Removed 156 assume(true) statements. [2021-11-09 08:58:58,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:58 BoogieIcfgContainer [2021-11-09 08:58:58,430 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 08:58:58,434 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-09 08:58:58,434 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-09 08:58:58,438 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-09 08:58:58,439 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:58,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 09.11 08:58:56" (1/3) ... [2021-11-09 08:58:58,442 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@485c06b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:58:58, skipping insertion in model container [2021-11-09 08:58:58,442 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:58,442 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 08:58:57" (2/3) ... [2021-11-09 08:58:58,443 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@485c06b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 09.11 08:58:58, skipping insertion in model container [2021-11-09 08:58:58,443 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-09 08:58:58,444 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:58" (3/3) ... [2021-11-09 08:58:58,445 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product29.cil.c [2021-11-09 08:58:58,506 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-09 08:58:58,506 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-09 08:58:58,506 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-09 08:58:58,507 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-09 08:58:58,507 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-09 08:58:58,507 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-09 08:58:58,507 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-09 08:58:58,507 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-09 08:58:58,531 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-11-09 08:58:58,559 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-09 08:58:58,559 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:58,559 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:58,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:58,568 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:58,569 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-09 08:58:58,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 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) [2021-11-09 08:58:58,578 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 65 [2021-11-09 08:58:58,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:58,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:58,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:58,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:58,586 INFO L791 eck$LassoCheckResult]: Stem: 93#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 26#L-1true havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 24#L613true havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 43#L621true main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 53#L908true assume 0 != main_~tmp~8; 38#L885true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 94#L930-1true [2021-11-09 08:58:58,587 INFO L793 eck$LassoCheckResult]: Loop: 94#L930-1true assume !false; 70#L534true assume test_~splverifierCounter~0 < 4; 69#L535true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 32#L543true assume !(0 != test_~tmp~3); 74#L543-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 60#L553true assume !(0 != test_~tmp___0~0); 73#L553-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 48#L563true assume 0 != test_~tmp___2~0; 63#L569-2true assume !(0 != ~pumpRunning~0); 81#L638true assume !(0 != ~systemActive~0); 103#L645true havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;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; 96#L132true __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 46#L930true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 94#L930-1true [2021-11-09 08:58:58,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:58,593 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-11-09 08:58:58,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:58,604 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82009817] [2021-11-09 08:58:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:58,605 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:58,896 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:59,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:59,100 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:59,111 INFO L85 PathProgramCache]: Analyzing trace with hash -1680298494, now seen corresponding path program 1 times [2021-11-09 08:58:59,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:59,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147270886] [2021-11-09 08:58:59,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:59,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:59,127 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:58:59,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:58:59,148 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:58:59,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:59,153 INFO L85 PathProgramCache]: Analyzing trace with hash 33980444, now seen corresponding path program 1 times [2021-11-09 08:58:59,153 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:59,153 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [382151180] [2021-11-09 08:58:59,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:59,154 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:58:59,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 08:58:59,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 08:58:59,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 08:58:59,372 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [382151180] [2021-11-09 08:58:59,372 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [382151180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 08:58:59,373 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 08:58:59,373 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-09 08:58:59,373 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205396230] [2021-11-09 08:58:59,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 08:58:59,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-09 08:58:59,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-09 08:58:59,556 INFO L87 Difference]: Start difference. First operand has 102 states, 101 states have (on average 1.5148514851485149) internal successors, (153), 101 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-09 08:58:59,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 08:58:59,894 INFO L93 Difference]: Finished difference Result 102 states and 142 transitions. [2021-11-09 08:58:59,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-09 08:58:59,897 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 102 states and 142 transitions. [2021-11-09 08:58:59,903 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-09 08:58:59,910 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 102 states to 95 states and 135 transitions. [2021-11-09 08:58:59,912 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 95 [2021-11-09 08:58:59,913 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 95 [2021-11-09 08:58:59,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 95 states and 135 transitions. [2021-11-09 08:58:59,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-09 08:58:59,915 INFO L681 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-09 08:58:59,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states and 135 transitions. [2021-11-09 08:58:59,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2021-11-09 08:58:59,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 95 states have (on average 1.4210526315789473) internal successors, (135), 94 states have internal predecessors, (135), 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) [2021-11-09 08:58:59,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 135 transitions. [2021-11-09 08:58:59,959 INFO L704 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-09 08:58:59,959 INFO L587 BuchiCegarLoop]: Abstraction has 95 states and 135 transitions. [2021-11-09 08:58:59,959 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-09 08:58:59,960 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 95 states and 135 transitions. [2021-11-09 08:58:59,963 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 63 [2021-11-09 08:58:59,963 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-09 08:58:59,963 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-09 08:58:59,964 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-11-09 08:58:59,964 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 08:58:59,965 INFO L791 eck$LassoCheckResult]: Stem: 310#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string8.base, #t~string8.offset := #Ultimate.allocOnStack(13);call #t~string10.base, #t~string10.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string10.base, #t~string10.offset, 1);call write~init~int(77, #t~string10.base, 1 + #t~string10.offset, 1);call write~init~int(101, #t~string10.base, 2 + #t~string10.offset, 1);call write~init~int(116, #t~string10.base, 3 + #t~string10.offset, 1);call write~init~int(104, #t~string10.base, 4 + #t~string10.offset, 1);call write~init~int(58, #t~string10.base, 5 + #t~string10.offset, 1);call write~init~int(0, #t~string10.base, 6 + #t~string10.offset, 1);call #t~string12.base, #t~string12.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string12.base, #t~string12.offset, 1);call write~init~int(82, #t~string12.base, 1 + #t~string12.offset, 1);call write~init~int(73, #t~string12.base, 2 + #t~string12.offset, 1);call write~init~int(84, #t~string12.base, 3 + #t~string12.offset, 1);call write~init~int(0, #t~string12.base, 4 + #t~string12.offset, 1);call #t~string14.base, #t~string14.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string14.base, #t~string14.offset, 1);call write~init~int(75, #t~string14.base, 1 + #t~string14.offset, 1);call write~init~int(0, #t~string14.base, 2 + #t~string14.offset, 1);call #t~string16.base, #t~string16.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string16.base, #t~string16.offset, 1);call write~init~int(0, #t~string16.base, 1 + #t~string16.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(30);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(9);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(21);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(30);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(9);call #t~string40.base, #t~string40.offset := #Ultimate.allocOnStack(21);call #t~string44.base, #t~string44.offset := #Ultimate.allocOnStack(30);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(9);call #t~string46.base, #t~string46.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(30);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(9);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(25);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(13);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(110, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 2 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string66.base, #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(102, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 3 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(80, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(117, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(109, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(112, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(110, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 2 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(102, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 3 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(32, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string76.base, #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 1 + #t~string76.offset, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 302#L-1 havoc main_#res;havoc main_#t~ret78, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 300#L613 havoc valid_product_#res;havoc valid_product_~retValue_acc~7;havoc valid_product_~retValue_acc~7;valid_product_~retValue_acc~7 := 1;valid_product_#res := valid_product_~retValue_acc~7; 301#L621 main_#t~ret78 := valid_product_#res;main_~tmp~8 := main_#t~ret78;havoc main_#t~ret78; 230#L908 assume 0 != main_~tmp~8; 231#L885 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 287#L930-1 [2021-11-09 08:58:59,965 INFO L793 eck$LassoCheckResult]: Loop: 287#L930-1 assume !false; 277#L534 assume test_~splverifierCounter~0 < 4; 275#L535 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 276#L543 assume !(0 != test_~tmp~3); 284#L543-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 256#L553 assume !(0 != test_~tmp___0~0); 257#L553-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 283#L563 assume 0 != test_~tmp___2~0; 265#L569-2 assume !(0 != ~pumpRunning~0); 229#L638 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret58, processEnvironment_~tmp~5;havoc processEnvironment_~tmp~5; 295#L696 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret57, processEnvironment__wrappee__methaneQuery_~tmp~4;havoc processEnvironment__wrappee__methaneQuery_~tmp~4; 267#L670-1 assume !(0 != ~pumpRunning~0); 238#L645 havoc __utac_acc__Specification4_spec__1_#t~ret79, __utac_acc__Specification4_spec__1_#t~ret80, __utac_acc__Specification4_spec__1_~tmp~9, __utac_acc__Specification4_spec__1_~tmp___0~2;havoc __utac_acc__Specification4_spec__1_~tmp~9;havoc __utac_acc__Specification4_spec__1_~tmp___0~2;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; 314#L132 __utac_acc__Specification4_spec__1_#t~ret79 := getWaterLevel_#res;__utac_acc__Specification4_spec__1_~tmp~9 := __utac_acc__Specification4_spec__1_#t~ret79;havoc __utac_acc__Specification4_spec__1_#t~ret79; 315#L930 assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9); 287#L930-1 [2021-11-09 08:58:59,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:58:59,966 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-11-09 08:58:59,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:58:59,967 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68152715] [2021-11-09 08:58:59,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:58:59,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:00,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,038 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:59:00,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,167 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:59:00,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:00,172 INFO L85 PathProgramCache]: Analyzing trace with hash -2008522604, now seen corresponding path program 1 times [2021-11-09 08:59:00,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:00,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344888347] [2021-11-09 08:59:00,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:00,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:00,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,186 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:59:00,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,196 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 08:59:00,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 08:59:00,204 INFO L85 PathProgramCache]: Analyzing trace with hash 441062446, now seen corresponding path program 1 times [2021-11-09 08:59:00,204 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 08:59:00,205 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262664879] [2021-11-09 08:59:00,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 08:59:00,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 08:59:00,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,273 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 08:59:00,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 08:59:00,366 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 09:00:09,901 WARN L207 SmtUtils]: Spent 1.16 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-11-09 09:01:24,477 WARN L207 SmtUtils]: Spent 37.24 s on a formula simplification that was a NOOP. DAG size: 433 [2021-11-09 09:01:24,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 09.11 09:01:24 BoogieIcfgContainer [2021-11-09 09:01:24,729 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-09 09:01:24,730 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 09:01:24,730 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 09:01:24,730 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 09:01:24,731 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 08:58:58" (3/4) ... [2021-11-09 09:01:24,734 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-09 09:01:24,862 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 09:01:24,862 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 09:01:24,864 INFO L168 Benchmark]: Toolchain (without parser) took 148103.63 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 67.0 MB in the beginning and 105.6 MB in the end (delta: -38.6 MB). Peak memory consumption was 86.5 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,864 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 09:01:24,865 INFO L168 Benchmark]: CACSL2BoogieTranslator took 480.68 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 48.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,866 INFO L168 Benchmark]: Boogie Procedure Inliner took 112.04 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 45.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,867 INFO L168 Benchmark]: Boogie Preprocessor took 42.50 ms. Allocated memory is still 92.3 MB. Free memory was 45.0 MB in the beginning and 42.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,868 INFO L168 Benchmark]: RCFGBuilder took 1031.49 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 42.4 MB in the beginning and 81.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,869 INFO L168 Benchmark]: BuchiAutomizer took 146295.38 ms. Allocated memory is still 136.3 MB. Free memory was 80.8 MB in the beginning and 27.8 MB in the end (delta: 53.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,870 INFO L168 Benchmark]: Witness Printer took 132.42 ms. Allocated memory is still 136.3 MB. Free memory was 27.8 MB in the beginning and 105.6 MB in the end (delta: -77.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 09:01:24,875 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 92.3 MB. Free memory was 65.2 MB in the beginning and 65.1 MB in the end (delta: 69.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 480.68 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 48.4 MB in the end (delta: 18.3 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 112.04 ms. Allocated memory is still 92.3 MB. Free memory was 48.4 MB in the beginning and 45.0 MB in the end (delta: 3.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 42.50 ms. Allocated memory is still 92.3 MB. Free memory was 45.0 MB in the beginning and 42.6 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1031.49 ms. Allocated memory was 92.3 MB in the beginning and 136.3 MB in the end (delta: 44.0 MB). Free memory was 42.4 MB in the beginning and 81.5 MB in the end (delta: -39.1 MB). Peak memory consumption was 17.3 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 146295.38 ms. Allocated memory is still 136.3 MB. Free memory was 80.8 MB in the beginning and 27.8 MB in the end (delta: 53.0 MB). Peak memory consumption was 56.7 MB. Max. memory is 16.1 GB. * Witness Printer took 132.42 ms. Allocated memory is still 136.3 MB. Free memory was 27.8 MB in the beginning and 105.6 MB in the end (delta: -77.8 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 6 locations. The remainder module has 95 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 146.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 145.6s. Construction of modules took 0.2s. 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 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 95 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 137 SDtfs, 547 SDslu, 2 SDs, 0 SdLazy, 8 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 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: 533]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=18582} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=18599, NULL=0, NULL=18582, NULL=18591, NULL=0, NULL=0, NULL=0, NULL=18586, NULL=18592, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a600db3=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5dc097a1=0, NULL=18589, methaneLevelCritical=0, NULL=18606, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35b658df=0, NULL=18587, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74ebe140=0, tmp=0, NULL=0, NULL=0, NULL=18593, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20c5d6a9=0, tmp___1=0, NULL=0, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3844b49e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f0bcca8=0, NULL=18602, NULL=18594, cleanupTimeShifts=4, NULL=18597, NULL=18601, tmp___0=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=18605, NULL=0, NULL=18596, NULL=18600, tmp___0=0, retValue_acc=0, NULL=18611, \result=1, retValue_acc=1, head=0, pumpRunning=0, NULL=18610, \result=0, NULL=18584, NULL=0, NULL=18595, NULL=0, NULL=0, NULL=0, tmp=1, NULL=18604, NULL=18590, retValue_acc=1, NULL=0, NULL=0, NULL=18609, NULL=0, tmp___2=65, tmp=1, splverifierCounter=0, NULL=0, NULL=18608, NULL=18583, NULL=18585, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df81884=0, head=0, tmp=0, NULL=0, NULL=0, NULL=18598, NULL=18603, NULL=18588, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@456ee75e=0, tmp=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L630] int pumpRunning = 0; [L631] int systemActive = 1; [L826] int cleanupTimeShifts = 4; [L899] int retValue_acc ; [L900] int tmp ; [L617] int retValue_acc ; [L620] retValue_acc = 1 [L621] return (retValue_acc); [L906] tmp = valid_product() [L908] COND TRUE \read(tmp) [L524] int splverifierCounter ; [L525] int tmp ; [L526] int tmp___0 ; [L527] int tmp___1 ; [L528] int tmp___2 ; [L531] splverifierCounter = 0 Loop: [L533] COND TRUE 1 [L535] COND TRUE splverifierCounter < 4 [L541] tmp = __VERIFIER_nondet_int() [L543] COND FALSE !(\read(tmp)) [L551] tmp___0 = __VERIFIER_nondet_int() [L553] COND FALSE !(\read(tmp___0)) [L561] tmp___2 = __VERIFIER_nondet_int() [L563] COND TRUE \read(tmp___2) [L638] COND FALSE !(\read(pumpRunning)) [L645] COND TRUE \read(systemActive) [L693] int tmp ; [L696] COND FALSE !(\read(pumpRunning)) [L667] int tmp ; [L670] COND FALSE !(\read(pumpRunning)) [L923] int tmp ; [L924] int tmp___0 ; [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L928] tmp = getWaterLevel() [L930] COND FALSE !(tmp == 0) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-09 09:01:24,998 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a8afa413-8abe-476c-958d-d8f3a652fa16/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)