./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3 --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 8dbe51203231315b42884daa8d242df16dd4c19d .................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-5709675 [2021-10-15 19:20:47,567 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:20:47,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:20:47,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:20:47,631 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:20:47,636 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:20:47,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:20:47,643 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:20:47,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:20:47,652 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:20:47,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:20:47,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:20:47,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:20:47,659 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:20:47,662 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:20:47,667 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:20:47,669 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:20:47,671 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:20:47,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:20:47,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:20:47,685 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:20:47,686 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:20:47,690 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:20:47,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:20:47,702 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:20:47,702 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:20:47,703 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:20:47,705 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:20:47,706 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:20:47,708 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:20:47,708 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:20:47,709 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:20:47,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:20:47,713 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:20:47,715 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:20:47,715 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:20:47,716 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:20:47,716 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:20:47,717 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:20:47,718 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:20:47,719 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:20:47,719 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-15 19:20:47,775 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:20:47,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:20:47,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:20:47,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:20:47,778 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:20:47,778 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:20:47,778 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:20:47,778 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-15 19:20:47,779 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-15 19:20:47,779 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-15 19:20:47,780 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-15 19:20:47,780 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-15 19:20:47,780 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-15 19:20:47,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:20:47,781 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:20:47,781 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-15 19:20:47,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:20:47,781 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:20:47,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:20:47,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-15 19:20:47,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-15 19:20:47,782 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-15 19:20:47,783 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:20:47,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:20:47,783 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-15 19:20:47,783 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:20:47,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-15 19:20:47,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:20:47,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:20:47,784 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:20:47,784 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:20:47,785 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:20:47,786 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-15 19:20:47,786 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_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8dbe51203231315b42884daa8d242df16dd4c19d [2021-10-15 19:20:48,064 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:20:48,088 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:20:48,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:20:48,093 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:20:48,094 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:20:48,095 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-15 19:20:48,211 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/data/3bc79fe4a/53ee1f68c99248bdb6243125b3fd97e3/FLAGeb882ef5d [2021-10-15 19:20:48,795 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:20:48,796 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c [2021-10-15 19:20:48,817 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/data/3bc79fe4a/53ee1f68c99248bdb6243125b3fd97e3/FLAGeb882ef5d [2021-10-15 19:20:49,077 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/data/3bc79fe4a/53ee1f68c99248bdb6243125b3fd97e3 [2021-10-15 19:20:49,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:20:49,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:20:49,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:20:49,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:20:49,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:20:49,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,090 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73886fff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49, skipping insertion in model container [2021-10-15 19:20:49,090 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,098 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:20:49,140 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:20:49,492 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_279da45b-b91d-424d-b1f1-11456f9d553d/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007] [2021-10-15 19:20:49,510 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:20:49,528 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:20:49,657 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_279da45b-b91d-424d-b1f1-11456f9d553d/sv-benchmarks/c/product-lines/minepump_spec1_product42.cil.c[15994,16007] [2021-10-15 19:20:49,668 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:20:49,698 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:20:49,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49 WrapperNode [2021-10-15 19:20:49,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:20:49,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:20:49,704 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:20:49,704 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:20:49,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,738 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,807 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:20:49,825 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:20:49,825 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:20:49,825 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:20:49,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,840 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,840 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,858 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,868 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:20:49,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:20:49,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:20:49,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:20:49,889 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (1/1) ... [2021-10-15 19:20:49,897 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-15 19:20:49,908 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:20:49,920 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-15 19:20:49,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-15 19:20:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:20:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:20:49,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:20:49,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:20:50,627 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:20:50,636 INFO L299 CfgBuilder]: Removed 116 assume(true) statements. [2021-10-15 19:20:50,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:20:50 BoogieIcfgContainer [2021-10-15 19:20:50,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:20:50,643 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-15 19:20:50,643 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-15 19:20:50,646 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-15 19:20:50,648 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:20:50,648 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.10 07:20:49" (1/3) ... [2021-10-15 19:20:50,649 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a3bf1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:20:50, skipping insertion in model container [2021-10-15 19:20:50,650 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:20:50,650 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:20:49" (2/3) ... [2021-10-15 19:20:50,650 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@a3bf1d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.10 07:20:50, skipping insertion in model container [2021-10-15 19:20:50,651 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-15 19:20:50,651 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:20:50" (3/3) ... [2021-10-15 19:20:50,652 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec1_product42.cil.c [2021-10-15 19:20:50,705 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-15 19:20:50,705 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-15 19:20:50,706 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-15 19:20:50,706 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-15 19:20:50,706 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-15 19:20:50,706 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-15 19:20:50,706 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-15 19:20:50,706 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-15 19:20:50,730 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:20:50,766 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-15 19:20:50,766 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:20:50,767 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:20:50,776 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:20:50,776 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:20:50,776 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-15 19:20:50,778 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:20:50,791 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 53 [2021-10-15 19:20:50,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:20:50,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:20:50,793 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:20:50,793 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:20:50,796 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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 48#L-1true havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 46#L830true havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 42#L838true main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 15#L925true assume 0 != main_~tmp~8; 39#L902true havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 78#L787-1true [2021-10-15 19:20:50,797 INFO L793 eck$LassoCheckResult]: Loop: 78#L787-1true assume !false; 49#L531true assume test_~splverifierCounter~0 < 4; 68#L532true test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 36#L540true assume !(0 != test_~tmp~3); 4#L540-1true test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 84#L550true assume !(0 != test_~tmp___0~0); 58#L550-1true test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 26#L560true assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 43#L568-2true assume !(0 != ~pumpRunning~0); 73#L599true assume !(0 != ~systemActive~0); 21#L606true havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 8#L466-1true __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 62#L787true assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 78#L787-1true [2021-10-15 19:20:50,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:50,803 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-15 19:20:50,812 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:50,812 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899865905] [2021-10-15 19:20:50,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:50,813 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:51,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:51,207 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:20:51,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:51,468 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:20:51,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:51,471 INFO L82 PathProgramCache]: Analyzing trace with hash -1680236925, now seen corresponding path program 1 times [2021-10-15 19:20:51,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:51,472 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129491752] [2021-10-15 19:20:51,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:51,473 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:51,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:20:51,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:20:51,538 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:20:51,538 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129491752] [2021-10-15 19:20:51,539 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129491752] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:20:51,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:20:51,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:20:51,540 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675715196] [2021-10-15 19:20:51,545 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:20:51,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:20:51,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:20:51,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:20:51,565 INFO L87 Difference]: Start difference. First operand has 84 states, 83 states have (on average 1.5180722891566265) internal successors, (126), 83 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:20:51,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:20:51,604 INFO L93 Difference]: Finished difference Result 84 states and 116 transitions. [2021-10-15 19:20:51,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:20:51,607 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 84 states and 116 transitions. [2021-10-15 19:20:51,611 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-15 19:20:51,616 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 84 states to 77 states and 108 transitions. [2021-10-15 19:20:51,617 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 77 [2021-10-15 19:20:51,618 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 77 [2021-10-15 19:20:51,618 INFO L73 IsDeterministic]: Start isDeterministic. Operand 77 states and 108 transitions. [2021-10-15 19:20:51,619 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:20:51,619 INFO L681 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-15 19:20:51,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states and 108 transitions. [2021-10-15 19:20:51,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 77. [2021-10-15 19:20:51,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 77 states have (on average 1.4025974025974026) internal successors, (108), 76 states have internal predecessors, (108), 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) [2021-10-15 19:20:51,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 108 transitions. [2021-10-15 19:20:51,653 INFO L704 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-15 19:20:51,653 INFO L587 BuchiCegarLoop]: Abstraction has 77 states and 108 transitions. [2021-10-15 19:20:51,653 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-15 19:20:51,654 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 77 states and 108 transitions. [2021-10-15 19:20:51,656 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 51 [2021-10-15 19:20:51,656 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:20:51,656 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:20:51,657 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:20:51,657 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:20:51,657 INFO L791 eck$LassoCheckResult]: Stem: 250#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 239#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 237#L830 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 236#L838 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 200#L925 assume 0 != main_~tmp~8; 201#L902 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 232#L787-1 [2021-10-15 19:20:51,657 INFO L793 eck$LassoCheckResult]: Loop: 232#L787-1 assume !false; 240#L531 assume test_~splverifierCounter~0 < 4; 241#L532 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 229#L540 assume !(0 != test_~tmp~3); 177#L540-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 178#L550 assume !(0 != test_~tmp___0~0); 245#L550-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 213#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 214#L568-2 assume !(0 != ~pumpRunning~0); 203#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 183#L631 assume !(0 == ~pumpRunning~0); 185#L606 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 186#L466-1 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 187#L787 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 232#L787-1 [2021-10-15 19:20:51,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:51,658 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-15 19:20:51,658 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:51,658 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705840413] [2021-10-15 19:20:51,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:51,659 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:51,717 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:20:51,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:51,790 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:20:51,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:51,790 INFO L82 PathProgramCache]: Analyzing trace with hash -589506373, now seen corresponding path program 1 times [2021-10-15 19:20:51,791 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:51,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078832101] [2021-10-15 19:20:51,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:51,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:20:51,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:20:51,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:20:51,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078832101] [2021-10-15 19:20:51,811 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078832101] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:20:51,811 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:20:51,811 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-15 19:20:51,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820759414] [2021-10-15 19:20:51,812 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-15 19:20:51,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:20:51,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-15 19:20:51,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-15 19:20:51,813 INFO L87 Difference]: Start difference. First operand 77 states and 108 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 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) [2021-10-15 19:20:51,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-15 19:20:51,902 INFO L93 Difference]: Finished difference Result 118 states and 159 transitions. [2021-10-15 19:20:51,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-15 19:20:51,903 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 118 states and 159 transitions. [2021-10-15 19:20:51,905 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-10-15 19:20:51,907 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 118 states to 118 states and 159 transitions. [2021-10-15 19:20:51,907 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 118 [2021-10-15 19:20:51,908 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 118 [2021-10-15 19:20:51,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 118 states and 159 transitions. [2021-10-15 19:20:51,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:20:51,909 INFO L681 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-10-15 19:20:51,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states and 159 transitions. [2021-10-15 19:20:51,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2021-10-15 19:20:51,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 118 states have (on average 1.347457627118644) internal successors, (159), 117 states have internal predecessors, (159), 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) [2021-10-15 19:20:51,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 159 transitions. [2021-10-15 19:20:51,929 INFO L704 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-10-15 19:20:51,929 INFO L587 BuchiCegarLoop]: Abstraction has 118 states and 159 transitions. [2021-10-15 19:20:51,929 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-15 19:20:51,929 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 118 states and 159 transitions. [2021-10-15 19:20:51,933 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 82 [2021-10-15 19:20:51,933 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-15 19:20:51,933 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-15 19:20:51,936 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-15 19:20:51,937 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] [2021-10-15 19:20:51,937 INFO L791 eck$LassoCheckResult]: Stem: 453#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~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(13);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string62.base, #t~string62.offset, 1);call write~init~int(110, #t~string62.base, 1 + #t~string62.offset, 1);call write~init~int(0, #t~string62.base, 2 + #t~string62.offset, 1);call #t~string64.base, #t~string64.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string64.base, #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 1 + #t~string64.offset, 1);call write~init~int(102, #t~string64.base, 2 + #t~string64.offset, 1);call write~init~int(0, #t~string64.base, 3 + #t~string64.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string66.base, #t~string66.offset, 1);call write~init~int(80, #t~string66.base, 1 + #t~string66.offset, 1);call write~init~int(117, #t~string66.base, 2 + #t~string66.offset, 1);call write~init~int(109, #t~string66.base, 3 + #t~string66.offset, 1);call write~init~int(112, #t~string66.base, 4 + #t~string66.offset, 1);call write~init~int(58, #t~string66.base, 5 + #t~string66.offset, 1);call write~init~int(0, #t~string66.base, 6 + #t~string66.offset, 1);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string68.base, #t~string68.offset, 1);call write~init~int(110, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 2 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string70.base, #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(102, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 3 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string72.base, #t~string72.offset, 1);call write~init~int(32, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 2 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 442#L-1 havoc main_#res;havoc main_#t~ret79, main_~retValue_acc~11, main_~tmp~8;havoc main_~retValue_acc~11;havoc main_~tmp~8; 440#L830 havoc valid_product_#res;havoc valid_product_~retValue_acc~10;havoc valid_product_~retValue_acc~10;valid_product_~retValue_acc~10 := 1;valid_product_#res := valid_product_~retValue_acc~10; 436#L838 main_#t~ret79 := valid_product_#res;main_~tmp~8 := main_#t~ret79;havoc main_#t~ret79; 400#L925 assume 0 != main_~tmp~8; 401#L902 havoc test_#t~nondet52, test_#t~nondet53, test_#t~nondet54, test_#t~nondet55, test_~splverifierCounter~0, test_~tmp~3, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~3;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 433#L787-1 [2021-10-15 19:20:51,938 INFO L793 eck$LassoCheckResult]: Loop: 433#L787-1 assume !false; 443#L531 assume test_~splverifierCounter~0 < 4; 444#L532 test_~tmp~3 := test_#t~nondet52;havoc test_#t~nondet52; 430#L540 assume !(0 != test_~tmp~3); 378#L540-1 test_~tmp___0~0 := test_#t~nondet53;havoc test_#t~nondet53; 379#L550 assume !(0 != test_~tmp___0~0); 448#L550-1 test_~tmp___2~0 := test_#t~nondet54;havoc test_#t~nondet54; 414#L560 assume 0 != test_~tmp___2~0;~systemActive~0 := 1; 415#L568-2 assume !(0 != ~pumpRunning~0); 437#L599 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret56, processEnvironment_~tmp~4;havoc processEnvironment_~tmp~4; 384#L631 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret75, isHighWaterLevel_~retValue_acc~8, isHighWaterLevel_~tmp~6, isHighWaterLevel_~tmp___0~1;havoc isHighWaterLevel_~retValue_acc~8;havoc isHighWaterLevel_~tmp~6;havoc isHighWaterLevel_~tmp___0~1;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 385#L506 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 380#L511 isHighWaterLevel_#t~ret75 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~6 := isHighWaterLevel_#t~ret75;havoc isHighWaterLevel_#t~ret75; 381#L751 assume 0 != isHighWaterLevel_~tmp~6;isHighWaterLevel_~tmp___0~1 := 0; 390#L751-2 isHighWaterLevel_~retValue_acc~8 := isHighWaterLevel_~tmp___0~1;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~8; 391#L757 processEnvironment_#t~ret56 := isHighWaterLevel_#res;processEnvironment_~tmp~4 := processEnvironment_#t~ret56;havoc processEnvironment_#t~ret56; 426#L635 assume !(0 != processEnvironment_~tmp~4); 408#L606 havoc __utac_acc__Specification1_spec__1_#t~ret76, __utac_acc__Specification1_spec__1_#t~ret77, __utac_acc__Specification1_spec__1_~tmp~7, __utac_acc__Specification1_spec__1_~tmp___0~2;havoc __utac_acc__Specification1_spec__1_~tmp~7;havoc __utac_acc__Specification1_spec__1_~tmp___0~2;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 386#L466-1 __utac_acc__Specification1_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification1_spec__1_~tmp~7 := __utac_acc__Specification1_spec__1_#t~ret76;havoc __utac_acc__Specification1_spec__1_#t~ret76; 387#L787 assume !(0 != __utac_acc__Specification1_spec__1_~tmp~7); 433#L787-1 [2021-10-15 19:20:51,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:51,939 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-15 19:20:51,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:51,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385143859] [2021-10-15 19:20:51,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:51,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:52,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,009 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:20:52,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,079 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:20:52,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:52,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1033634393, now seen corresponding path program 1 times [2021-10-15 19:20:52,084 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:52,085 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822036441] [2021-10-15 19:20:52,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:52,086 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:52,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,095 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:20:52,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,114 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:20:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:20:52,120 INFO L82 PathProgramCache]: Analyzing trace with hash -1018922419, now seen corresponding path program 1 times [2021-10-15 19:20:52,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:20:52,120 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394938934] [2021-10-15 19:20:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:20:52,121 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:20:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,176 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:20:52,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:20:52,226 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:21:51,790 WARN L207 SmtUtils]: Spent 59.25 s on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-15 19:22:53,222 WARN L207 SmtUtils]: Spent 30.23 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-15 19:22:53,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 15.10 07:22:53 BoogieIcfgContainer [2021-10-15 19:22:53,399 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-15 19:22:53,399 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:22:53,399 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:22:53,400 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:22:53,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:20:50" (3/4) ... [2021-10-15 19:22:53,403 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-15 19:22:53,468 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:22:53,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:22:53,470 INFO L168 Benchmark]: Toolchain (without parser) took 124387.40 ms. Allocated memory was 109.1 MB in the beginning and 165.7 MB in the end (delta: 56.6 MB). Free memory was 74.7 MB in the beginning and 129.5 MB in the end (delta: -54.8 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,470 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:22:53,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.19 ms. Allocated memory is still 109.1 MB. Free memory was 74.5 MB in the beginning and 75.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,472 INFO L168 Benchmark]: Boogie Procedure Inliner took 120.89 ms. Allocated memory is still 109.1 MB. Free memory was 75.8 MB in the beginning and 72.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,472 INFO L168 Benchmark]: Boogie Preprocessor took 47.44 ms. Allocated memory is still 109.1 MB. Free memory was 72.8 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,473 INFO L168 Benchmark]: RCFGBuilder took 768.91 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 70.3 MB in the beginning and 90.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,474 INFO L168 Benchmark]: BuchiAutomizer took 122755.92 ms. Allocated memory was 136.3 MB in the beginning and 165.7 MB in the end (delta: 29.4 MB). Free memory was 90.8 MB in the beginning and 131.6 MB in the end (delta: -40.8 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,475 INFO L168 Benchmark]: Witness Printer took 68.99 ms. Allocated memory is still 165.7 MB. Free memory was 131.6 MB in the beginning and 129.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:22:53,479 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 109.1 MB. Free memory is still 64.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 619.19 ms. Allocated memory is still 109.1 MB. Free memory was 74.5 MB in the beginning and 75.8 MB in the end (delta: -1.3 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 120.89 ms. Allocated memory is still 109.1 MB. Free memory was 75.8 MB in the beginning and 72.8 MB in the end (delta: 3.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 47.44 ms. Allocated memory is still 109.1 MB. Free memory was 72.8 MB in the beginning and 70.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 768.91 ms. Allocated memory was 109.1 MB in the beginning and 136.3 MB in the end (delta: 27.3 MB). Free memory was 70.3 MB in the beginning and 90.8 MB in the end (delta: -20.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 122755.92 ms. Allocated memory was 136.3 MB in the beginning and 165.7 MB in the end (delta: 29.4 MB). Free memory was 90.8 MB in the beginning and 131.6 MB in the end (delta: -40.8 MB). Peak memory consumption was 85.5 MB. Max. memory is 16.1 GB. * Witness Printer took 68.99 ms. Allocated memory is still 165.7 MB. Free memory was 131.6 MB in the beginning and 129.5 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 3 locations. The remainder module has 118 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 122.6s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 122.3s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 37.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 118 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 219 SDtfs, 203 SDslu, 48 SDs, 0 SdLazy, 24 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 64.9ms Time LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc0 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 530]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=24021} State at position 1 is {NULL=0, NULL=0, NULL=0, NULL=0, NULL=24021, NULL=0, NULL=0, NULL=24037, NULL=0, NULL=24042, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61e8b016=68, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@480e1df4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@559de16b=0, NULL=24029, methaneLevelCritical=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f8d1d=0, NULL=24027, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@187dc27c=0, retValue_acc=1, tmp___0=0, tmp=0, NULL=0, NULL=0, retValue_acc=0, NULL=24049, tmp___1=0, NULL=24025, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4df61d57=0, tmp___0=0, NULL=0, NULL=0, NULL=24032, NULL=24036, NULL=24031, cleanupTimeShifts=4, NULL=24044, NULL=24045, NULL=24048, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, NULL=0, NULL=0, NULL=0, retValue_acc=0, \result=0, NULL=24035, tmp___0=0, NULL=24047, retValue_acc=0, NULL=24034, \result=1, head=0, pumpRunning=0, NULL=24038, \result=0, retValue_acc=1, NULL=24026, tmp=0, NULL=0, NULL=24030, NULL=0, NULL=0, tmp=1, NULL=0, NULL=0, NULL=24022, \result=1, NULL=0, NULL=0, NULL=24046, tmp___2=68, NULL=24024, NULL=24041, tmp=1, splverifierCounter=0, NULL=0, \result=0, NULL=24040, NULL=24043, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41a5399=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@566a76d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bd2dbe4=0, head=0, tmp=0, NULL=0, NULL=0, NULL=24033, NULL=0, NULL=0, NULL=24028, NULL=24023, NULL=24039} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L591] int pumpRunning = 0; [L592] int systemActive = 1; [L843] int cleanupTimeShifts = 4; [L916] int retValue_acc ; [L917] int tmp ; [L834] int retValue_acc ; [L837] retValue_acc = 1 [L838] return (retValue_acc); [L923] tmp = valid_product() [L925] COND TRUE \read(tmp) [L521] int splverifierCounter ; [L522] int tmp ; [L523] int tmp___0 ; [L524] int tmp___1 ; [L525] int tmp___2 ; [L528] splverifierCounter = 0 Loop: [L530] COND TRUE 1 [L532] COND TRUE splverifierCounter < 4 [L538] tmp = __VERIFIER_nondet_int() [L540] COND FALSE !(\read(tmp)) [L548] tmp___0 = __VERIFIER_nondet_int() [L550] COND FALSE !(\read(tmp___0)) [L558] tmp___2 = __VERIFIER_nondet_int() [L560] COND TRUE \read(tmp___2) [L765] systemActive = 1 [L599] COND FALSE !(\read(pumpRunning)) [L606] COND TRUE \read(systemActive) [L628] int tmp ; [L631] COND TRUE ! pumpRunning [L743] int retValue_acc ; [L744] int tmp ; [L745] int tmp___0 ; [L503] int retValue_acc ; [L506] COND TRUE waterLevel < 2 [L507] retValue_acc = 1 [L508] return (retValue_acc); [L749] tmp = isHighWaterSensorDry() [L751] COND TRUE \read(tmp) [L752] tmp___0 = 0 [L756] retValue_acc = tmp___0 [L757] return (retValue_acc); [L633] tmp = isHighWaterLevel() [L635] COND FALSE !(\read(tmp)) [L780] int tmp ; [L781] int tmp___0 ; [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L785] tmp = isMethaneLevelCritical() [L787] COND FALSE !(\read(tmp)) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-15 19:22:53,559 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_279da45b-b91d-424d-b1f1-11456f9d553d/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...