./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.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_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg --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 d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba .................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:48:40,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:48:40,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:48:40,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:48:40,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:48:40,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:48:40,432 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:48:40,435 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:48:40,438 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:48:40,440 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:48:40,441 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:48:40,443 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:48:40,444 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:48:40,446 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:48:40,448 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:48:40,450 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:48:40,451 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:48:40,453 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:48:40,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:48:40,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:48:40,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:48:40,469 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:48:40,476 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:48:40,477 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:48:40,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:48:40,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:48:40,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:48:40,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:48:40,493 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:48:40,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:48:40,497 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:48:40,498 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:48:40,500 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:48:40,502 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:48:40,504 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:48:40,505 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:48:40,506 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:48:40,506 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:48:40,506 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:48:40,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:48:40,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:48:40,510 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-28 09:48:40,576 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:48:40,577 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:48:40,578 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:48:40,578 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:48:40,580 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:48:40,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:48:40,581 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:48:40,581 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-28 09:48:40,581 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-28 09:48:40,582 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-28 09:48:40,583 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-28 09:48:40,583 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-28 09:48:40,583 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-28 09:48:40,584 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:48:40,584 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:48:40,584 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-28 09:48:40,585 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:48:40,585 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:48:40,585 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:48:40,586 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-28 09:48:40,586 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-28 09:48:40,586 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-28 09:48:40,586 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:48:40,587 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:48:40,587 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-28 09:48:40,587 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:48:40,589 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-28 09:48:40,590 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:48:40,590 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:48:40,590 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:48:40,591 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:48:40,591 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:48:40,592 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-28 09:48:40,593 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_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d20064856c358ac34c15406fcd734cb6b5694fad7d43f4bd7014ec1cea8e62ba [2021-10-28 09:48:40,890 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:48:40,924 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:48:40,929 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:48:40,930 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:48:40,932 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:48:40,933 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-10-28 09:48:41,016 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/data/3d4280794/a05d52f2516e4e85bbf422024303a9a9/FLAG85a4cc9dc [2021-10-28 09:48:41,628 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:48:41,629 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c [2021-10-28 09:48:41,645 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/data/3d4280794/a05d52f2516e4e85bbf422024303a9a9/FLAG85a4cc9dc [2021-10-28 09:48:41,911 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/data/3d4280794/a05d52f2516e4e85bbf422024303a9a9 [2021-10-28 09:48:41,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:48:41,919 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:48:41,924 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:41,925 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:48:41,929 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:48:41,930 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:41" (1/1) ... [2021-10-28 09:48:41,932 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f27c28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:41, skipping insertion in model container [2021-10-28 09:48:41,933 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:48:41" (1/1) ... [2021-10-28 09:48:41,944 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:48:42,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:48:42,391 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_91d08471-cc2f-412b-839a-2f522994a8a2/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-10-28 09:48:42,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:42,466 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:48:42,581 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_91d08471-cc2f-412b-839a-2f522994a8a2/sv-benchmarks/c/product-lines/minepump_spec5_product27.cil.c[13937,13950] [2021-10-28 09:48:42,613 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:48:42,642 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:48:42,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42 WrapperNode [2021-10-28 09:48:42,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:48:42,645 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:42,645 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:48:42,645 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:48:42,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,725 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:48:42,726 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:48:42,726 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:48:42,726 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:48:42,737 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,737 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,764 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,789 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,825 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:48:42,826 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:48:42,826 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:48:42,826 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:48:42,828 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (1/1) ... [2021-10-28 09:48:42,839 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-28 09:48:42,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:48:42,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-28 09:48:42,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-28 09:48:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:48:42,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:48:42,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:48:42,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:48:43,995 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:48:43,995 INFO L299 CfgBuilder]: Removed 114 assume(true) statements. [2021-10-28 09:48:43,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:43 BoogieIcfgContainer [2021-10-28 09:48:43,998 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:48:44,000 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-28 09:48:44,000 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-28 09:48:44,004 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-28 09:48:44,005 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:44,006 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.10 09:48:41" (1/3) ... [2021-10-28 09:48:44,008 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1585def8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:48:44, skipping insertion in model container [2021-10-28 09:48:44,008 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:44,008 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:48:42" (2/3) ... [2021-10-28 09:48:44,009 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1585def8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.10 09:48:44, skipping insertion in model container [2021-10-28 09:48:44,009 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-28 09:48:44,009 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:43" (3/3) ... [2021-10-28 09:48:44,011 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product27.cil.c [2021-10-28 09:48:44,066 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-28 09:48:44,067 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-28 09:48:44,067 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-28 09:48:44,067 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-28 09:48:44,067 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-28 09:48:44,067 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-28 09:48:44,068 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-28 09:48:44,068 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-28 09:48:44,096 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 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 09:48:44,147 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 09:48:44,147 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:44,148 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:44,158 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,159 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,159 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-28 09:48:44,169 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 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 09:48:44,188 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-28 09:48:44,189 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:44,189 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:44,191 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,191 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:44,206 INFO L791 eck$LassoCheckResult]: Stem: 61#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 42#L-1true havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 74#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; 27#L83true main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 50#L696true assume 0 != main_~tmp~4; 54#L671true ~switchedOnBeforeTS~0 := 0; 9#L97true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 63#L118-1true [2021-10-28 09:48:44,209 INFO L793 eck$LassoCheckResult]: Loop: 63#L118-1true assume !false; 76#L722true assume test_~splverifierCounter~0 < 4; 78#L723true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 29#L731true assume !(0 != test_~tmp~5); 33#L731-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 64#L741true assume !(0 != test_~tmp___0~1); 55#L741-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 24#L751true assume 0 != test_~tmp___2~0; 79#L757-1true havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 15#L893true __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 69#L107true assume !(0 != ~pumpRunning~0); 6#L790true assume !(0 != ~systemActive~0); 19#L797true havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 75#L587true __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 28#L118true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 63#L118-1true [2021-10-28 09:48:44,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,223 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-28 09:48:44,235 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,236 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863863802] [2021-10-28 09:48:44,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,238 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,637 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,891 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,895 INFO L85 PathProgramCache]: Analyzing trace with hash -241953451, now seen corresponding path program 1 times [2021-10-28 09:48:44,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,896 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467066832] [2021-10-28 09:48:44,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,896 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,904 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:44,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:44,916 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:44,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:44,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1692071759, now seen corresponding path program 1 times [2021-10-28 09:48:44,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:44,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526607576] [2021-10-28 09:48:44,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:44,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:44,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:45,173 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 09:48:45,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:45,176 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526607576] [2021-10-28 09:48:45,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526607576] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:45,178 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:45,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-28 09:48:45,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151916234] [2021-10-28 09:48:45,400 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:45,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:48:45,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:48:45,424 INFO L87 Difference]: Start difference. First operand has 83 states, 82 states have (on average 1.5) internal successors, (123), 82 states have internal predecessors, (123), 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 3.6666666666666665) internal successors, (22), 5 states have internal predecessors, (22), 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 09:48:45,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:45,743 INFO L93 Difference]: Finished difference Result 217 states and 298 transitions. [2021-10-28 09:48:45,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:48:45,746 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 217 states and 298 transitions. [2021-10-28 09:48:45,754 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 139 [2021-10-28 09:48:45,763 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 217 states to 196 states and 277 transitions. [2021-10-28 09:48:45,765 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 196 [2021-10-28 09:48:45,766 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 196 [2021-10-28 09:48:45,767 INFO L73 IsDeterministic]: Start isDeterministic. Operand 196 states and 277 transitions. [2021-10-28 09:48:45,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:45,770 INFO L681 BuchiCegarLoop]: Abstraction has 196 states and 277 transitions. [2021-10-28 09:48:45,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states and 277 transitions. [2021-10-28 09:48:45,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 125. [2021-10-28 09:48:45,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 125 states have (on average 1.408) internal successors, (176), 124 states have internal predecessors, (176), 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 09:48:45,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 176 transitions. [2021-10-28 09:48:45,859 INFO L704 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2021-10-28 09:48:45,859 INFO L587 BuchiCegarLoop]: Abstraction has 125 states and 176 transitions. [2021-10-28 09:48:45,859 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-28 09:48:45,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 125 states and 176 transitions. [2021-10-28 09:48:45,863 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 88 [2021-10-28 09:48:45,863 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:45,863 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:45,880 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:45,881 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 09:48:45,881 INFO L791 eck$LassoCheckResult]: Stem: 390#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 378#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 379#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; 356#L83 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 357#L696 assume 0 != main_~tmp~4; 383#L671 ~switchedOnBeforeTS~0 := 0; 327#L97 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 328#L118-1 [2021-10-28 09:48:45,881 INFO L793 eck$LassoCheckResult]: Loop: 328#L118-1 assume !false; 391#L722 assume test_~splverifierCounter~0 < 4; 394#L723 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 360#L731 assume !(0 != test_~tmp~5); 362#L731-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 369#L741 assume !(0 != test_~tmp___0~1); 330#L741-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 350#L751 assume 0 != test_~tmp___2~0; 352#L757-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 337#L893 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 338#L107 assume !(0 != ~pumpRunning~0); 320#L790 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 321#L822 assume !(0 != ~pumpRunning~0); 333#L797 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 343#L587 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 358#L118 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0); 328#L118-1 [2021-10-28 09:48:45,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:45,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-28 09:48:45,882 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:45,883 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200161834] [2021-10-28 09:48:45,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:45,883 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:45,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:45,974 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,045 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1062384515, now seen corresponding path program 1 times [2021-10-28 09:48:46,047 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,047 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940985657] [2021-10-28 09:48:46,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,047 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,054 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,068 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,069 INFO L85 PathProgramCache]: Analyzing trace with hash 887623881, now seen corresponding path program 1 times [2021-10-28 09:48:46,069 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064319314] [2021-10-28 09:48:46,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,070 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:48:46,176 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 09:48:46,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:48:46,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064319314] [2021-10-28 09:48:46,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064319314] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:48:46,179 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:48:46,179 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:48:46,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786730310] [2021-10-28 09:48:46,355 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:48:46,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-28 09:48:46,357 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-28 09:48:46,358 INFO L87 Difference]: Start difference. First operand 125 states and 176 transitions. cyclomatic complexity: 54 Second operand has 5 states, 4 states have (on average 5.75) internal successors, (23), 4 states have internal predecessors, (23), 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 09:48:46,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 09:48:46,550 INFO L93 Difference]: Finished difference Result 338 states and 468 transitions. [2021-10-28 09:48:46,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 09:48:46,552 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 338 states and 468 transitions. [2021-10-28 09:48:46,570 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2021-10-28 09:48:46,579 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 338 states to 338 states and 468 transitions. [2021-10-28 09:48:46,579 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 338 [2021-10-28 09:48:46,581 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 338 [2021-10-28 09:48:46,581 INFO L73 IsDeterministic]: Start isDeterministic. Operand 338 states and 468 transitions. [2021-10-28 09:48:46,595 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:48:46,595 INFO L681 BuchiCegarLoop]: Abstraction has 338 states and 468 transitions. [2021-10-28 09:48:46,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states and 468 transitions. [2021-10-28 09:48:46,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 243. [2021-10-28 09:48:46,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 243 states have (on average 1.3621399176954732) internal successors, (331), 242 states have internal predecessors, (331), 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 09:48:46,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 331 transitions. [2021-10-28 09:48:46,642 INFO L704 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2021-10-28 09:48:46,642 INFO L587 BuchiCegarLoop]: Abstraction has 243 states and 331 transitions. [2021-10-28 09:48:46,642 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-28 09:48:46,642 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 243 states and 331 transitions. [2021-10-28 09:48:46,644 INFO L131 ngComponentsAnalysis]: Automaton has 6 accepting balls. 170 [2021-10-28 09:48:46,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-28 09:48:46,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-28 09:48:46,646 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:46,646 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 09:48:46,646 INFO L791 eck$LassoCheckResult]: Stem: 879#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~string29.base, #t~string29.offset := #Ultimate.allocOnStack(30);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(9);call #t~string31.base, #t~string31.offset := #Ultimate.allocOnStack(21);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(30);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(9);call #t~string34.base, #t~string34.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(25);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(30);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(9);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(25);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(13);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string49.base, #t~string49.offset, 1);call write~init~int(77, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(101, #t~string49.base, 2 + #t~string49.offset, 1);call write~init~int(116, #t~string49.base, 3 + #t~string49.offset, 1);call write~init~int(104, #t~string49.base, 4 + #t~string49.offset, 1);call write~init~int(58, #t~string49.base, 5 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 6 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string51.base, #t~string51.offset, 1);call write~init~int(82, #t~string51.base, 1 + #t~string51.offset, 1);call write~init~int(73, #t~string51.base, 2 + #t~string51.offset, 1);call write~init~int(84, #t~string51.base, 3 + #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 4 + #t~string51.offset, 1);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string53.base, #t~string53.offset, 1);call write~init~int(75, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 2 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string55.base, #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 1 + #t~string55.offset, 1);call #t~string65.base, #t~string65.offset := #Ultimate.allocOnStack(13);call #t~string67.base, #t~string67.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string67.base, #t~string67.offset, 1);call write~init~int(110, #t~string67.base, 1 + #t~string67.offset, 1);call write~init~int(0, #t~string67.base, 2 + #t~string67.offset, 1);call #t~string69.base, #t~string69.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string69.base, #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 1 + #t~string69.offset, 1);call write~init~int(102, #t~string69.base, 2 + #t~string69.offset, 1);call write~init~int(0, #t~string69.base, 3 + #t~string69.offset, 1);call #t~string71.base, #t~string71.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string71.base, #t~string71.offset, 1);call write~init~int(80, #t~string71.base, 1 + #t~string71.offset, 1);call write~init~int(117, #t~string71.base, 2 + #t~string71.offset, 1);call write~init~int(109, #t~string71.base, 3 + #t~string71.offset, 1);call write~init~int(112, #t~string71.base, 4 + #t~string71.offset, 1);call write~init~int(58, #t~string71.base, 5 + #t~string71.offset, 1);call write~init~int(0, #t~string71.base, 6 + #t~string71.offset, 1);call #t~string73.base, #t~string73.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string73.base, #t~string73.offset, 1);call write~init~int(110, #t~string73.base, 1 + #t~string73.offset, 1);call write~init~int(0, #t~string73.base, 2 + #t~string73.offset, 1);call #t~string75.base, #t~string75.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string75.base, #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 1 + #t~string75.offset, 1);call write~init~int(102, #t~string75.base, 2 + #t~string75.offset, 1);call write~init~int(0, #t~string75.base, 3 + #t~string75.offset, 1);call #t~string77.base, #t~string77.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string77.base, #t~string77.offset, 1);call write~init~int(32, #t~string77.base, 1 + #t~string77.offset, 1);call write~init~int(0, #t~string77.base, 2 + #t~string77.offset, 1);call #t~string79.base, #t~string79.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string79.base, #t~string79.offset, 1);call write~init~int(0, #t~string79.base, 1 + #t~string79.offset, 1);~switchedOnBeforeTS~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 862#L-1 havoc main_#res;havoc main_#t~ret56, main_~retValue_acc~8, main_~tmp~4;havoc main_~retValue_acc~8;havoc main_~tmp~4; 863#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; 839#L83 main_#t~ret56 := valid_product_#res;main_~tmp~4 := main_#t~ret56;havoc main_#t~ret56; 840#L696 assume 0 != main_~tmp~4; 872#L671 ~switchedOnBeforeTS~0 := 0; 808#L97 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 809#L118-1 [2021-10-28 09:48:46,646 INFO L793 eck$LassoCheckResult]: Loop: 809#L118-1 assume !false; 939#L722 assume test_~splverifierCounter~0 < 4; 940#L723 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 963#L731 assume !(0 != test_~tmp~5); 962#L731-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 961#L741 assume !(0 != test_~tmp___0~1); 959#L741-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 958#L751 assume 0 != test_~tmp___2~0; 889#L757-1 havoc __utac_acc__Specification5_spec__2_#t~ret8;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 957#L893 __utac_acc__Specification5_spec__2_#t~ret8 := isPumpRunning_#res;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret8;havoc __utac_acc__Specification5_spec__2_#t~ret8; 956#L107 assume !(0 != ~pumpRunning~0); 799#L790 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret61, processEnvironment_~tmp~6;havoc processEnvironment_~tmp~6; 800#L822 assume !(0 != ~pumpRunning~0); 955#L797 havoc __utac_acc__Specification5_spec__3_#t~ret9, __utac_acc__Specification5_spec__3_#t~ret10, __utac_acc__Specification5_spec__3_~tmp~0, __utac_acc__Specification5_spec__3_~tmp___0~0;havoc __utac_acc__Specification5_spec__3_~tmp~0;havoc __utac_acc__Specification5_spec__3_~tmp___0~0;havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~6;havoc getWaterLevel_~retValue_acc~6;getWaterLevel_~retValue_acc~6 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~6; 954#L587 __utac_acc__Specification5_spec__3_#t~ret9 := getWaterLevel_#res;__utac_acc__Specification5_spec__3_~tmp~0 := __utac_acc__Specification5_spec__3_#t~ret9;havoc __utac_acc__Specification5_spec__3_#t~ret9; 953#L118 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0;havoc isPumpRunning_#res;havoc isPumpRunning_~retValue_acc~10;havoc isPumpRunning_~retValue_acc~10;isPumpRunning_~retValue_acc~10 := ~pumpRunning~0;isPumpRunning_#res := isPumpRunning_~retValue_acc~10; 952#L893-1 __utac_acc__Specification5_spec__3_#t~ret10 := isPumpRunning_#res;__utac_acc__Specification5_spec__3_~tmp___0~0 := __utac_acc__Specification5_spec__3_#t~ret10;havoc __utac_acc__Specification5_spec__3_#t~ret10; 951#L122 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0); 809#L118-1 [2021-10-28 09:48:46,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-28 09:48:46,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,648 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841174012] [2021-10-28 09:48:46,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,648 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,737 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,828 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,829 INFO L85 PathProgramCache]: Analyzing trace with hash -1250711394, now seen corresponding path program 1 times [2021-10-28 09:48:46,830 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180275656] [2021-10-28 09:48:46,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,864 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,872 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:48:46,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:48:46,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1691956124, now seen corresponding path program 1 times [2021-10-28 09:48:46,873 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:48:46,874 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63315013] [2021-10-28 09:48:46,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:48:46,874 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:48:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,911 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 09:48:46,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 09:48:46,963 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 09:49:55,723 WARN L207 SmtUtils]: Spent 1.14 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-28 09:51:01,337 WARN L207 SmtUtils]: Spent 31.89 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-28 09:51:01,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.10 09:51:01 BoogieIcfgContainer [2021-10-28 09:51:01,458 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-28 09:51:01,458 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:51:01,458 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:51:01,459 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:51:01,459 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:48:43" (3/4) ... [2021-10-28 09:51:01,462 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-28 09:51:01,510 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:51:01,511 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:51:01,512 INFO L168 Benchmark]: Toolchain (without parser) took 139592.21 ms. Allocated memory was 121.6 MB in the beginning and 184.5 MB in the end (delta: 62.9 MB). Free memory was 91.6 MB in the beginning and 88.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,513 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:51:01,513 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.32 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 87.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,514 INFO L168 Benchmark]: Boogie Procedure Inliner took 80.40 ms. Allocated memory is still 121.6 MB. Free memory was 87.4 MB in the beginning and 84.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,514 INFO L168 Benchmark]: Boogie Preprocessor took 99.05 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,515 INFO L168 Benchmark]: RCFGBuilder took 1172.63 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 82.1 MB in the beginning and 109.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,516 INFO L168 Benchmark]: BuchiAutomizer took 137458.22 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 109.7 MB in the beginning and 90.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 99.3 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,516 INFO L168 Benchmark]: Witness Printer took 52.71 ms. Allocated memory is still 184.5 MB. Free memory was 90.8 MB in the beginning and 88.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:51:01,519 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 121.6 MB. Free memory is still 74.7 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 719.32 ms. Allocated memory is still 121.6 MB. Free memory was 91.3 MB in the beginning and 87.4 MB in the end (delta: 3.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 80.40 ms. Allocated memory is still 121.6 MB. Free memory was 87.4 MB in the beginning and 84.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 99.05 ms. Allocated memory is still 121.6 MB. Free memory was 84.2 MB in the beginning and 82.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1172.63 ms. Allocated memory was 121.6 MB in the beginning and 153.1 MB in the end (delta: 31.5 MB). Free memory was 82.1 MB in the beginning and 109.7 MB in the end (delta: -27.6 MB). Peak memory consumption was 31.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 137458.22 ms. Allocated memory was 153.1 MB in the beginning and 184.5 MB in the end (delta: 31.5 MB). Free memory was 109.7 MB in the beginning and 90.8 MB in the end (delta: 18.9 MB). Peak memory consumption was 99.3 MB. Max. memory is 16.1 GB. * Witness Printer took 52.71 ms. Allocated memory is still 184.5 MB. Free memory was 90.8 MB in the beginning and 88.7 MB in the end (delta: 2.1 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 243 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 137.3s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 136.4s. 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 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 166 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 243 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 278 SDtfs, 861 SDslu, 849 SDs, 0 SdLazy, 120 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 721]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=25817} State at position 1 is {NULL=0, NULL=0, NULL=25832, NULL=25817, NULL=0, NULL=25840, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c68aa24=0, NULL=0, NULL=25844, retValue_acc=0, NULL=0, NULL=0, NULL=25837, methaneLevelCritical=0, NULL=0, NULL=0, tmp=0, NULL=25841, NULL=25823, NULL=0, tmp___1=0, NULL=25819, tmp=1, NULL=0, NULL=0, NULL=25845, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3247395e=0, retValue_acc=0, cleanupTimeShifts=4, NULL=25827, switchedOnBeforeTS=0, NULL=25834, NULL=25831, \result=0, NULL=25818, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=25835, \result=1, NULL=0, NULL=0, NULL=0, NULL=0, NULL=25830, NULL=0, NULL=0, NULL=25829, tmp___0=0, \result=1, head=0, pumpRunning=0, NULL=25825, \result=0, tmp=1, NULL=0, NULL=0, NULL=0, NULL=25826, NULL=0, NULL=0, NULL=0, NULL=25839, NULL=25836, NULL=0, NULL=25843, retValue_acc=1, retValue_acc=1, tmp___2=57, NULL=0, NULL=25842, tmp___0=0, splverifierCounter=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@71e25c9f=0, NULL=25838, NULL=25822, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c327043=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6425da2c=57, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3015fa34=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5931416=0, head=0, tmp=0, NULL=25821, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@222fee22=0, NULL=25828, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4364e9d=0, NULL=25833, NULL=25820, NULL=25824} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L91] int switchedOnBeforeTS ; [L309] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L512] int waterLevel = 1; [L513] int methaneLevelCritical = 0; [L610] int cleanupTimeShifts = 4; [L780] int pumpRunning = 0; [L781] int systemActive = 1; [L687] int retValue_acc ; [L688] int tmp ; [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); [L694] tmp = valid_product() [L696] COND TRUE \read(tmp) [L96] switchedOnBeforeTS = 0 [L712] int splverifierCounter ; [L713] int tmp ; [L714] int tmp___0 ; [L715] int tmp___1 ; [L716] int tmp___2 ; [L719] splverifierCounter = 0 Loop: [L721] COND TRUE 1 [L723] COND TRUE splverifierCounter < 4 [L729] tmp = __VERIFIER_nondet_int() [L731] COND FALSE !(\read(tmp)) [L739] tmp___0 = __VERIFIER_nondet_int() [L741] COND FALSE !(\read(tmp___0)) [L749] tmp___2 = __VERIFIER_nondet_int() [L751] COND TRUE \read(tmp___2) [L889] int retValue_acc ; [L892] retValue_acc = pumpRunning [L893] return (retValue_acc); [L105] switchedOnBeforeTS = isPumpRunning() [L790] COND FALSE !(\read(pumpRunning)) [L797] COND TRUE \read(systemActive) [L819] int tmp ; [L822] COND FALSE !(\read(pumpRunning)) [L111] int tmp ; [L112] int tmp___0 ; [L583] int retValue_acc ; [L586] retValue_acc = waterLevel [L587] return (retValue_acc); [L116] tmp = getWaterLevel() [L118] COND TRUE tmp != 2 [L889] int retValue_acc ; [L892] retValue_acc = pumpRunning [L893] return (retValue_acc); [L120] tmp___0 = isPumpRunning() [L122] COND FALSE !(\read(tmp___0)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-28 09:51:01,592 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_91d08471-cc2f-412b-839a-2f522994a8a2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...