./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD --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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f ................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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-b2eff8b [2021-10-28 23:50:32,408 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 23:50:32,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 23:50:32,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 23:50:32,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 23:50:32,477 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 23:50:32,480 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 23:50:32,483 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 23:50:32,486 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 23:50:32,488 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 23:50:32,490 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 23:50:32,492 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 23:50:32,493 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 23:50:32,495 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 23:50:32,498 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 23:50:32,500 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 23:50:32,502 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 23:50:32,504 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 23:50:32,507 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 23:50:32,510 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 23:50:32,513 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 23:50:32,516 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 23:50:32,518 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 23:50:32,519 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 23:50:32,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 23:50:32,526 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 23:50:32,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 23:50:32,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 23:50:32,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 23:50:32,531 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 23:50:32,531 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 23:50:32,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 23:50:32,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 23:50:32,536 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 23:50:32,538 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 23:50:32,539 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 23:50:32,540 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 23:50:32,541 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 23:50:32,541 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 23:50:32,543 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 23:50:32,544 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 23:50:32,546 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 23:50:32,579 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 23:50:32,580 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 23:50:32,580 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 23:50:32,581 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 23:50:32,583 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 23:50:32,583 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 23:50:32,583 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 23:50:32,584 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 23:50:32,584 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 23:50:32,585 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 23:50:32,585 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 23:50:32,585 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 23:50:32,586 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 23:50:32,586 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 23:50:32,586 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 23:50:32,587 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 23:50:32,587 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 23:50:32,587 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 23:50:32,587 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 23:50:32,588 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 23:50:32,588 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 23:50:32,588 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 23:50:32,589 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 23:50:32,589 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 23:50:32,589 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 23:50:32,590 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 23:50:32,590 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 23:50:32,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 23:50:32,591 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 23:50:32,591 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 23:50:32,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 23:50:32,592 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 23:50:32,593 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 23:50:32,593 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_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2021-10-28 23:50:32,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 23:50:32,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 23:50:32,987 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 23:50:32,989 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 23:50:32,990 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 23:50:32,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/../../sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2021-10-28 23:50:33,088 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/data/220838c0a/9138800c19ba483eae09bacb85fc60b6/FLAG49e04ece4 [2021-10-28 23:50:33,953 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 23:50:33,954 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2021-10-28 23:50:33,973 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/data/220838c0a/9138800c19ba483eae09bacb85fc60b6/FLAG49e04ece4 [2021-10-28 23:50:34,180 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/data/220838c0a/9138800c19ba483eae09bacb85fc60b6 [2021-10-28 23:50:34,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 23:50:34,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 23:50:34,200 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 23:50:34,200 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 23:50:34,217 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 23:50:34,218 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ab73299 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34, skipping insertion in model container [2021-10-28 23:50:34,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:34,231 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 23:50:34,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 23:50:34,612 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_a815324b-a5e6-4f09-b45d-306ce2bf92ee/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2021-10-28 23:50:34,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:50:34,782 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 23:50:34,844 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_a815324b-a5e6-4f09-b45d-306ce2bf92ee/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2021-10-28 23:50:34,966 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 23:50:34,997 INFO L208 MainTranslator]: Completed translation [2021-10-28 23:50:34,999 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34 WrapperNode [2021-10-28 23:50:34,999 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 23:50:35,003 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 23:50:35,003 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 23:50:35,003 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 23:50:35,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,057 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 23:50:35,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 23:50:35,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 23:50:35,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 23:50:35,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,228 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,228 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,274 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,347 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 23:50:35,353 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 23:50:35,353 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 23:50:35,353 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 23:50:35,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (1/1) ... [2021-10-28 23:50:35,378 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 23:50:35,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/z3 [2021-10-28 23:50:35,406 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 23:50:35,419 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 23:50:35,459 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 23:50:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 23:50:35,460 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 23:50:35,460 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 23:50:37,065 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 23:50:37,066 INFO L299 CfgBuilder]: Removed 348 assume(true) statements. [2021-10-28 23:50:37,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:50:37 BoogieIcfgContainer [2021-10-28 23:50:37,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 23:50:37,074 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 23:50:37,074 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 23:50:37,078 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 23:50:37,079 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:37,080 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 11:50:34" (1/3) ... [2021-10-28 23:50:37,082 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ede1a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:50:37, skipping insertion in model container [2021-10-28 23:50:37,082 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:37,082 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 11:50:34" (2/3) ... [2021-10-28 23:50:37,083 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2ede1a95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 11:50:37, skipping insertion in model container [2021-10-28 23:50:37,083 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 23:50:37,084 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:50:37" (3/3) ... [2021-10-28 23:50:37,085 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2021-10-28 23:50:37,161 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 23:50:37,161 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 23:50:37,162 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 23:50:37,162 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 23:50:37,162 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 23:50:37,162 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 23:50:37,163 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 23:50:37,163 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 23:50:37,204 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 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) [2021-10-28 23:50:37,277 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-10-28 23:50:37,279 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:37,280 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:37,291 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,292 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,292 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 23:50:37,296 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 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) [2021-10-28 23:50:37,314 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-10-28 23:50:37,315 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:37,316 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:37,317 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,318 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:37,324 INFO L791 eck$LassoCheckResult]: Stem: 214#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 145#L-1true havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 164#L75true havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 22#L83true main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 67#L320true assume 0 != main_~tmp~1; 49#L296true havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 190#L217-1true [2021-10-28 23:50:37,325 INFO L793 eck$LassoCheckResult]: Loop: 190#L217-1true assume !false; 106#L587true assume test_~splverifierCounter~0 < 4; 75#L588true test_~tmp~8 := test_#t~nondet44;havoc test_#t~nondet44; 151#L596true assume !(0 != test_~tmp~8); 191#L596-1true test_~tmp___0~3 := test_#t~nondet45;havoc test_#t~nondet45; 127#L606true assume !(0 != test_~tmp___0~3); 224#L606-1true test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 203#L616true assume 0 != test_~tmp___2~0; 180#L622-2true assume !(0 != ~pumpRunning~0); 194#L343true assume !(0 != ~systemActive~0); 89#L350true havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 112#L139-5true __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 19#L217true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 190#L217-1true [2021-10-28 23:50:37,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,342 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-28 23:50:37,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,357 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [903277666] [2021-10-28 23:50:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,359 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,657 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:37,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:37,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:37,971 INFO L85 PathProgramCache]: Analyzing trace with hash -1675126782, now seen corresponding path program 1 times [2021-10-28 23:50:37,971 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:37,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890568771] [2021-10-28 23:50:37,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:37,973 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:37,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:37,985 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:37,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,008 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:38,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash 39152156, now seen corresponding path program 1 times [2021-10-28 23:50:38,014 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920835824] [2021-10-28 23:50:38,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,015 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:38,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:38,204 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920835824] [2021-10-28 23:50:38,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920835824] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:38,205 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:38,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 23:50:38,206 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830832698] [2021-10-28 23:50:38,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:38,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 23:50:38,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 23:50:38,412 INFO L87 Difference]: Start difference. First operand has 222 states, 221 states have (on average 1.506787330316742) internal successors, (333), 221 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-28 23:50:38,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:38,642 INFO L93 Difference]: Finished difference Result 222 states and 322 transitions. [2021-10-28 23:50:38,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-28 23:50:38,645 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 222 states and 322 transitions. [2021-10-28 23:50:38,650 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2021-10-28 23:50:38,659 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 222 states to 215 states and 315 transitions. [2021-10-28 23:50:38,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 215 [2021-10-28 23:50:38,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 215 [2021-10-28 23:50:38,664 INFO L73 IsDeterministic]: Start isDeterministic. Operand 215 states and 315 transitions. [2021-10-28 23:50:38,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:38,667 INFO L681 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-10-28 23:50:38,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states and 315 transitions. [2021-10-28 23:50:38,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2021-10-28 23:50:38,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 215 states have (on average 1.4651162790697674) internal successors, (315), 214 states have internal predecessors, (315), 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) [2021-10-28 23:50:38,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 315 transitions. [2021-10-28 23:50:38,721 INFO L704 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-10-28 23:50:38,721 INFO L587 BuchiCegarLoop]: Abstraction has 215 states and 315 transitions. [2021-10-28 23:50:38,722 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 23:50:38,722 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 215 states and 315 transitions. [2021-10-28 23:50:38,725 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 143 [2021-10-28 23:50:38,725 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:38,725 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:38,727 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:50:38,727 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:38,727 INFO L791 eck$LassoCheckResult]: Stem: 676#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 650#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 651#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 500#L83 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 501#L320 assume 0 != main_~tmp~1; 542#L296 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 494#L217-1 [2021-10-28 23:50:38,728 INFO L793 eck$LassoCheckResult]: Loop: 494#L217-1 assume !false; 620#L587 assume test_~splverifierCounter~0 < 4; 580#L588 test_~tmp~8 := test_#t~nondet44;havoc test_#t~nondet44; 581#L596 assume !(0 != test_~tmp~8); 544#L596-1 test_~tmp___0~3 := test_#t~nondet45;havoc test_#t~nondet45; 636#L606 assume !(0 != test_~tmp___0~3); 637#L606-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 674#L616 assume 0 != test_~tmp___2~0; 667#L622-2 assume !(0 != ~pumpRunning~0); 538#L343 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 671#L427 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret22, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 601#L401-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 602#L375-3 assume !(0 == ~pumpRunning~0); 516#L350 havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 598#L139-5 __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 493#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 494#L217-1 [2021-10-28 23:50:38,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,729 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-28 23:50:38,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,729 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349231225] [2021-10-28 23:50:38,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,730 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,792 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:38,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:38,871 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:38,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:38,872 INFO L85 PathProgramCache]: Analyzing trace with hash 391395521, now seen corresponding path program 1 times [2021-10-28 23:50:38,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:38,873 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526720291] [2021-10-28 23:50:38,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:38,873 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:38,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 23:50:38,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 23:50:38,894 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 23:50:38,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526720291] [2021-10-28 23:50:38,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526720291] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 23:50:38,895 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 23:50:38,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 23:50:38,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108448630] [2021-10-28 23:50:38,896 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-28 23:50:38,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 23:50:38,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 23:50:38,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 23:50:38,898 INFO L87 Difference]: Start difference. First operand 215 states and 315 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2021-10-28 23:50:39,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 23:50:39,100 INFO L93 Difference]: Finished difference Result 211 states and 291 transitions. [2021-10-28 23:50:39,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 23:50:39,101 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 211 states and 291 transitions. [2021-10-28 23:50:39,107 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-10-28 23:50:39,114 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 211 states to 211 states and 291 transitions. [2021-10-28 23:50:39,115 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 211 [2021-10-28 23:50:39,117 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 211 [2021-10-28 23:50:39,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 211 states and 291 transitions. [2021-10-28 23:50:39,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 23:50:39,128 INFO L681 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-10-28 23:50:39,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states and 291 transitions. [2021-10-28 23:50:39,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2021-10-28 23:50:39,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 211 states have (on average 1.3791469194312795) internal successors, (291), 210 states have internal predecessors, (291), 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) [2021-10-28 23:50:39,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 291 transitions. [2021-10-28 23:50:39,153 INFO L704 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-10-28 23:50:39,154 INFO L587 BuchiCegarLoop]: Abstraction has 211 states and 291 transitions. [2021-10-28 23:50:39,155 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 23:50:39,155 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 211 states and 291 transitions. [2021-10-28 23:50:39,158 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 144 [2021-10-28 23:50:39,158 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 23:50:39,159 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 23:50:39,164 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-28 23:50:39,164 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 23:50:39,164 INFO L791 eck$LassoCheckResult]: Stem: 1069#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~string9.base, #t~string9.offset := #Ultimate.allocOnStack(13);call #t~string11.base, #t~string11.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string11.base, #t~string11.offset, 1);call write~init~int(77, #t~string11.base, 1 + #t~string11.offset, 1);call write~init~int(101, #t~string11.base, 2 + #t~string11.offset, 1);call write~init~int(116, #t~string11.base, 3 + #t~string11.offset, 1);call write~init~int(104, #t~string11.base, 4 + #t~string11.offset, 1);call write~init~int(58, #t~string11.base, 5 + #t~string11.offset, 1);call write~init~int(0, #t~string11.base, 6 + #t~string11.offset, 1);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string13.base, #t~string13.offset, 1);call write~init~int(82, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(73, #t~string13.base, 2 + #t~string13.offset, 1);call write~init~int(84, #t~string13.base, 3 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 4 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(75, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 2 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string17.base, #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 1 + #t~string17.offset, 1);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(13);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string29.base, #t~string29.offset, 1);call write~init~int(110, #t~string29.base, 1 + #t~string29.offset, 1);call write~init~int(0, #t~string29.base, 2 + #t~string29.offset, 1);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string31.base, #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 1 + #t~string31.offset, 1);call write~init~int(102, #t~string31.base, 2 + #t~string31.offset, 1);call write~init~int(0, #t~string31.base, 3 + #t~string31.offset, 1);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string33.base, #t~string33.offset, 1);call write~init~int(80, #t~string33.base, 1 + #t~string33.offset, 1);call write~init~int(117, #t~string33.base, 2 + #t~string33.offset, 1);call write~init~int(109, #t~string33.base, 3 + #t~string33.offset, 1);call write~init~int(112, #t~string33.base, 4 + #t~string33.offset, 1);call write~init~int(58, #t~string33.base, 5 + #t~string33.offset, 1);call write~init~int(0, #t~string33.base, 6 + #t~string33.offset, 1);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string35.base, #t~string35.offset, 1);call write~init~int(110, #t~string35.base, 1 + #t~string35.offset, 1);call write~init~int(0, #t~string35.base, 2 + #t~string35.offset, 1);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string37.base, #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 1 + #t~string37.offset, 1);call write~init~int(102, #t~string37.base, 2 + #t~string37.offset, 1);call write~init~int(0, #t~string37.base, 3 + #t~string37.offset, 1);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string39.base, #t~string39.offset, 1);call write~init~int(32, #t~string39.base, 1 + #t~string39.offset, 1);call write~init~int(0, #t~string39.base, 2 + #t~string39.offset, 1);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string41.base, #t~string41.offset, 1);call write~init~int(0, #t~string41.base, 1 + #t~string41.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(30);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(9);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(21);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(30);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(9);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(21);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(30);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(9);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(25);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(30);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(9);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(25);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 993#L-1 havoc main_#res;havoc main_#t~ret20, main_~retValue_acc~6, main_~tmp~1;havoc main_~retValue_acc~6;havoc main_~tmp~1; 994#L75 havoc valid_product_#res;havoc valid_product_~retValue_acc~1;havoc valid_product_~retValue_acc~1;valid_product_~retValue_acc~1 := 1;valid_product_#res := valid_product_~retValue_acc~1; 960#L83 main_#t~ret20 := valid_product_#res;main_~tmp~1 := main_#t~ret20;havoc main_#t~ret20; 961#L320 assume 0 != main_~tmp~1; 1015#L296 havoc test_#t~nondet44, test_#t~nondet45, test_#t~nondet46, test_#t~nondet47, test_~splverifierCounter~0, test_~tmp~8, test_~tmp___0~3, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~8;havoc test_~tmp___0~3;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 953#L217-1 [2021-10-28 23:50:39,165 INFO L793 eck$LassoCheckResult]: Loop: 953#L217-1 assume !false; 1053#L587 assume test_~splverifierCounter~0 < 4; 1054#L588 test_~tmp~8 := test_#t~nondet44;havoc test_#t~nondet44; 1003#L596 assume !(0 != test_~tmp~8); 1005#L596-1 test_~tmp___0~3 := test_#t~nondet45;havoc test_#t~nondet45; 938#L606 assume !(0 != test_~tmp___0~3); 939#L606-1 test_~tmp___2~0 := test_#t~nondet46;havoc test_#t~nondet46; 1062#L616 assume 0 != test_~tmp___2~0; 1037#L622-2 assume !(0 != ~pumpRunning~0); 1038#L343 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret23, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 1051#L427 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret22, processEnvironment__wrappee__methaneQuery_~tmp~3;havoc processEnvironment__wrappee__methaneQuery_~tmp~3; 1052#L401-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret21, processEnvironment__wrappee__highWaterSensor_~tmp~2;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2; 1065#L375-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret42, isHighWaterLevel_~retValue_acc~9, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~9;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~4;havoc isHighWaterSensorDry_~retValue_acc~4; 903#L179-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~4 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~4; 904#L184-3 isHighWaterLevel_#t~ret42 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret42;havoc isHighWaterLevel_#t~ret42; 1056#L546-9 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 1063#L546-11 isHighWaterLevel_~retValue_acc~9 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~9; 985#L552-3 processEnvironment__wrappee__highWaterSensor_#t~ret21 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~2 := processEnvironment__wrappee__highWaterSensor_#t~ret21;havoc processEnvironment__wrappee__highWaterSensor_#t~ret21; 986#L379-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2); 982#L350 havoc __utac_acc__Specification1_spec__1_#t~ret18, __utac_acc__Specification1_spec__1_#t~ret19, __utac_acc__Specification1_spec__1_~tmp~0, __utac_acc__Specification1_spec__1_~tmp___0~0;havoc __utac_acc__Specification1_spec__1_~tmp~0;havoc __utac_acc__Specification1_spec__1_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~2;havoc isMethaneLevelCritical_~retValue_acc~2;isMethaneLevelCritical_~retValue_acc~2 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~2; 894#L139-5 __utac_acc__Specification1_spec__1_#t~ret18 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~0 := __utac_acc__Specification1_spec__1_#t~ret18;havoc __utac_acc__Specification1_spec__1_#t~ret18; 895#L217 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~0); 953#L217-1 [2021-10-28 23:50:39,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:39,166 INFO L85 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-28 23:50:39,166 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:39,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797504885] [2021-10-28 23:50:39,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:39,168 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:39,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,267 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:39,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,435 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:39,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:39,436 INFO L85 PathProgramCache]: Analyzing trace with hash 697809965, now seen corresponding path program 1 times [2021-10-28 23:50:39,436 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:39,436 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291982145] [2021-10-28 23:50:39,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:39,437 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:39,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,462 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,477 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:50:39,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 23:50:39,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1951115091, now seen corresponding path program 1 times [2021-10-28 23:50:39,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 23:50:39,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695083296] [2021-10-28 23:50:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 23:50:39,480 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 23:50:39,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,559 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 23:50:39,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 23:50:39,647 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 23:52:05,396 WARN L207 SmtUtils]: Spent 1.42 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-28 23:53:31,933 WARN L207 SmtUtils]: Spent 41.40 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-28 23:53:32,054 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 11:53:32 BoogieIcfgContainer [2021-10-28 23:53:32,055 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 23:53:32,056 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 23:53:32,056 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 23:53:32,056 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 23:53:32,057 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 11:50:37" (3/4) ... [2021-10-28 23:53:32,060 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 23:53:32,124 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/witness.graphml [2021-10-28 23:53:32,124 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 23:53:32,126 INFO L168 Benchmark]: Toolchain (without parser) took 177927.41 ms. Allocated memory was 127.9 MB in the beginning and 182.5 MB in the end (delta: 54.5 MB). Free memory was 90.7 MB in the beginning and 108.5 MB in the end (delta: -17.7 MB). Peak memory consumption was 36.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,126 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 127.9 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 23:53:32,127 INFO L168 Benchmark]: CACSL2BoogieTranslator took 799.93 ms. Allocated memory is still 127.9 MB. Free memory was 90.6 MB in the beginning and 97.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,128 INFO L168 Benchmark]: Boogie Procedure Inliner took 199.49 ms. Allocated memory is still 127.9 MB. Free memory was 97.0 MB in the beginning and 91.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,128 INFO L168 Benchmark]: Boogie Preprocessor took 148.62 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 87.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,129 INFO L168 Benchmark]: RCFGBuilder took 1717.15 ms. Allocated memory is still 127.9 MB. Free memory was 87.7 MB in the beginning and 89.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,130 INFO L168 Benchmark]: BuchiAutomizer took 174981.01 ms. Allocated memory was 127.9 MB in the beginning and 182.5 MB in the end (delta: 54.5 MB). Free memory was 89.5 MB in the beginning and 110.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,130 INFO L168 Benchmark]: Witness Printer took 69.10 ms. Allocated memory is still 182.5 MB. Free memory was 110.4 MB in the beginning and 108.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 23:53:32,134 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 127.9 MB. Free memory is still 108.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 799.93 ms. Allocated memory is still 127.9 MB. Free memory was 90.6 MB in the beginning and 97.0 MB in the end (delta: -6.4 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 199.49 ms. Allocated memory is still 127.9 MB. Free memory was 97.0 MB in the beginning and 91.5 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 148.62 ms. Allocated memory is still 127.9 MB. Free memory was 91.5 MB in the beginning and 87.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1717.15 ms. Allocated memory is still 127.9 MB. Free memory was 87.7 MB in the beginning and 89.5 MB in the end (delta: -1.8 MB). Peak memory consumption was 47.4 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 174981.01 ms. Allocated memory was 127.9 MB in the beginning and 182.5 MB in the end (delta: 54.5 MB). Free memory was 89.5 MB in the beginning and 110.4 MB in the end (delta: -20.9 MB). Peak memory consumption was 100.7 MB. Max. memory is 16.1 GB. * Witness Printer took 69.10 ms. Allocated memory is still 182.5 MB. Free memory was 110.4 MB in the beginning and 108.5 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 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 211 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 174.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 174.0s. Construction of modules took 0.2s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 215 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 539 SDtfs, 1436 SDslu, 77 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 586]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25511} State at position 1 is {NULL=0, NULL=25511, NULL=25530, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35062510=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44b96d25=65, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4946e91e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@42e43ed7=0, NULL=25535, NULL=25537, methaneLevelCritical=0, NULL=25534, NULL=0, NULL=25514, retValue_acc=0, NULL=25528, NULL=0, tmp=0, tmp___1=0, NULL=25536, NULL=0, NULL=25524, cleanupTimeShifts=4, NULL=25539, NULL=0, waterLevel=1, \result=1, head=0, pumpRunning=0, retValue_acc=1, tmp=1, NULL=0, NULL=0, NULL=0, tmp=0, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=25531, NULL=0, tmp___0=0, NULL=0, tmp=1, NULL=25538, NULL=25521, head=0, tmp=0, NULL=25526, NULL=0, NULL=0, NULL=0, NULL=25519, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60bbc7c9=0, tmp=0, NULL=25527, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@416525e1=0, retValue_acc=0, NULL=25520, NULL=0, tmp___0=0, NULL=0, NULL=25533, NULL=25523, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2950e843=0, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6260ee15=0, NULL=25525, tmp=0, NULL=0, NULL=0, systemActive=1, NULL=25529, \result=0, retValue_acc=0, NULL=25512, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b047a19=0, \result=0, NULL=25522, NULL=0, NULL=25517, NULL=0, NULL=25516, NULL=25532, NULL=25513, retValue_acc=1, tmp___2=65, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=25518, NULL=25515, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c0301ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4637afb8=0, NULL=0, NULL=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L96] int waterLevel = 1; [L97] int methaneLevelCritical = 0; [L235] int cleanupTimeShifts = 4; [L336] int pumpRunning = 0; [L337] int systemActive = 1; [L810] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L311] int retValue_acc ; [L312] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L318] tmp = valid_product() [L320] COND TRUE \read(tmp) [L577] int splverifierCounter ; [L578] int tmp ; [L579] int tmp___0 ; [L580] int tmp___1 ; [L581] int tmp___2 ; [L584] splverifierCounter = 0 Loop: [L586] COND TRUE 1 [L588] COND TRUE splverifierCounter < 4 [L594] tmp = __VERIFIER_nondet_int() [L596] COND FALSE !(\read(tmp)) [L604] tmp___0 = __VERIFIER_nondet_int() [L606] COND FALSE !(\read(tmp___0)) [L614] tmp___2 = __VERIFIER_nondet_int() [L616] COND TRUE \read(tmp___2) [L343] COND FALSE !(\read(pumpRunning)) [L350] COND TRUE \read(systemActive) [L424] int tmp ; [L427] COND FALSE !(\read(pumpRunning)) [L398] int tmp ; [L401] COND FALSE !(\read(pumpRunning)) [L372] int tmp ; [L375] COND TRUE ! pumpRunning [L538] int retValue_acc ; [L539] int tmp ; [L540] int tmp___0 ; [L176] int retValue_acc ; [L179] COND TRUE waterLevel < 2 [L180] retValue_acc = 1 [L181] return (retValue_acc); [L544] tmp = isHighWaterSensorDry() [L546] COND TRUE \read(tmp) [L547] tmp___0 = 0 [L551] retValue_acc = tmp___0 [L552] return (retValue_acc); [L377] tmp = isHighWaterLevel() [L379] COND FALSE !(\read(tmp)) [L210] int tmp ; [L211] int tmp___0 ; [L135] int retValue_acc ; [L138] retValue_acc = methaneLevelCritical [L139] return (retValue_acc); [L215] tmp = isMethaneLevelCritical() [L217] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 23:53:32,223 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a815324b-a5e6-4f09-b45d-306ce2bf92ee/bin/uautomizer-GMMbpWq8iD/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...