./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt --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 e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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-4e77c04 [2021-10-13 00:15:54,701 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:15:54,705 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:15:54,757 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:15:54,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:15:54,762 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:15:54,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:15:54,770 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:15:54,773 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:15:54,782 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:15:54,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:15:54,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:15:54,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:15:54,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:15:54,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:15:54,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:15:54,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:15:54,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:15:54,802 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:15:54,814 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:15:54,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:15:54,818 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:15:54,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:15:54,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:15:54,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:15:54,833 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:15:54,834 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:15:54,836 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:15:54,837 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:15:54,839 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:15:54,839 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:15:54,840 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:15:54,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:15:54,844 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:15:54,845 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:15:54,846 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:15:54,847 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:15:54,847 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:15:54,847 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:15:54,848 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:15:54,849 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:15:54,850 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-13 00:15:54,898 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:15:54,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:15:54,899 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:15:54,899 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:15:54,901 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:15:54,901 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:15:54,901 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:15:54,902 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-13 00:15:54,902 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-13 00:15:54,902 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-13 00:15:54,904 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-13 00:15:54,904 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-13 00:15:54,904 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-13 00:15:54,904 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:15:54,905 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:15:54,905 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-13 00:15:54,905 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:15:54,906 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:15:54,906 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:15:54,906 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-13 00:15:54,906 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-13 00:15:54,907 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-13 00:15:54,907 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:15:54,907 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:15:54,907 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-13 00:15:54,908 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:15:54,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-13 00:15:54,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:15:54,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:15:54,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:15:54,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:15:54,911 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:15:54,913 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-13 00:15:54,913 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_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e293e64b1cdccf6f7dd8e0ea93ea165f8311c2d3 [2021-10-13 00:15:55,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:15:55,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:15:55,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:15:55,318 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:15:55,319 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:15:55,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-10-13 00:15:55,388 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/data/c27130690/869bc69621a74d6188129f80411eed42/FLAG419ebd332 [2021-10-13 00:15:55,975 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:15:55,976 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c [2021-10-13 00:15:55,998 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/data/c27130690/869bc69621a74d6188129f80411eed42/FLAG419ebd332 [2021-10-13 00:15:56,275 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/data/c27130690/869bc69621a74d6188129f80411eed42 [2021-10-13 00:15:56,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:15:56,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:15:56,282 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:56,282 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:15:56,286 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:15:56,287 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:56,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ff4bce9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56, skipping insertion in model container [2021-10-13 00:15:56,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:56,297 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:15:56,353 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:15:56,800 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_58cd85d4-1c64-486a-a3ce-5cadf9034d10/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[16852,16865] [2021-10-13 00:15:56,806 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:56,826 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:15:56,945 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_58cd85d4-1c64-486a-a3ce-5cadf9034d10/sv-benchmarks/c/product-lines/minepump_spec3_product15.cil.c[16852,16865] [2021-10-13 00:15:56,946 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:15:56,987 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:15:56,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56 WrapperNode [2021-10-13 00:15:56,988 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:15:56,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:56,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:15:56,991 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:15:57,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,020 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,068 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:15:57,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:15:57,069 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:15:57,069 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:15:57,079 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,080 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,085 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,085 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,105 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:15:57,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:15:57,114 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:15:57,114 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:15:57,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (1/1) ... [2021-10-13 00:15:57,123 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-13 00:15:57,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:15:57,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-13 00:15:57,168 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-13 00:15:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:15:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:15:57,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:15:57,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:15:58,120 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:15:58,121 INFO L299 CfgBuilder]: Removed 106 assume(true) statements. [2021-10-13 00:15:58,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:58 BoogieIcfgContainer [2021-10-13 00:15:58,124 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:15:58,125 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-13 00:15:58,125 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-13 00:15:58,130 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-13 00:15:58,131 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:58,131 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.10 12:15:56" (1/3) ... [2021-10-13 00:15:58,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b739180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:58, skipping insertion in model container [2021-10-13 00:15:58,133 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:58,133 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:15:56" (2/3) ... [2021-10-13 00:15:58,133 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b739180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.10 12:15:58, skipping insertion in model container [2021-10-13 00:15:58,134 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-13 00:15:58,134 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:58" (3/3) ... [2021-10-13 00:15:58,135 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2021-10-13 00:15:58,192 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-13 00:15:58,192 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-13 00:15:58,192 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-13 00:15:58,192 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-13 00:15:58,192 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-13 00:15:58,193 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-13 00:15:58,193 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-13 00:15:58,193 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-13 00:15:58,214 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2021-10-13 00:15:58,243 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:15:58,243 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:58,243 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:58,252 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:58,252 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:58,252 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-13 00:15:58,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 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) [2021-10-13 00:15:58,260 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 47 [2021-10-13 00:15:58,260 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:58,260 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:58,268 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:58,268 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:58,273 INFO L791 eck$LassoCheckResult]: Stem: 64#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 51#L-1true havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 57#L899true havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 69#L907true main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 61#L819true assume 0 != main_~tmp~6; 52#L793true havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 50#L849-1true [2021-10-13 00:15:58,274 INFO L793 eck$LassoCheckResult]: Loop: 50#L849-1true assume !false; 22#L231true assume test_~splverifierCounter~0 < 4; 75#L232true test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 35#L240true assume !(0 != test_~tmp~2); 58#L240-1true test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 31#L250true assume !(0 != test_~tmp___0~0); 37#L250-1true test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 73#L260true assume 0 != test_~tmp___2~0; 39#L266-1true assume !(0 != ~pumpRunning~0); 48#L59true assume !(0 != ~systemActive~0); 46#L66true havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 26#L697-1true __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 14#L843true assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 50#L849-1true [2021-10-13 00:15:58,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:58,280 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-13 00:15:58,291 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:58,292 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1500162509] [2021-10-13 00:15:58,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:58,293 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:58,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:58,564 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:58,745 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:58,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:58,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1673310530, now seen corresponding path program 1 times [2021-10-13 00:15:58,749 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:58,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140244] [2021-10-13 00:15:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:58,750 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:58,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:58,759 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:58,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:58,770 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:58,772 INFO L82 PathProgramCache]: Analyzing trace with hash 40968408, now seen corresponding path program 1 times [2021-10-13 00:15:58,773 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:58,773 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327170662] [2021-10-13 00:15:58,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:58,773 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:58,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:58,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:58,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:58,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327170662] [2021-10-13 00:15:58,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327170662] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:58,929 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:58,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-13 00:15:58,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679532629] [2021-10-13 00:15:59,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:15:59,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:15:59,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:15:59,128 INFO L87 Difference]: Start difference. First operand has 74 states, 73 states have (on average 1.5205479452054795) internal successors, (111), 73 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 5 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-13 00:15:59,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:15:59,464 INFO L93 Difference]: Finished difference Result 198 states and 273 transitions. [2021-10-13 00:15:59,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:15:59,466 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 198 states and 273 transitions. [2021-10-13 00:15:59,483 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 125 [2021-10-13 00:15:59,493 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 198 states to 177 states and 252 transitions. [2021-10-13 00:15:59,494 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 177 [2021-10-13 00:15:59,495 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 177 [2021-10-13 00:15:59,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 177 states and 252 transitions. [2021-10-13 00:15:59,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:15:59,498 INFO L681 BuchiCegarLoop]: Abstraction has 177 states and 252 transitions. [2021-10-13 00:15:59,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states and 252 transitions. [2021-10-13 00:15:59,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 114. [2021-10-13 00:15:59,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 114 states have (on average 1.4210526315789473) internal successors, (162), 113 states have internal predecessors, (162), 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) [2021-10-13 00:15:59,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 162 transitions. [2021-10-13 00:15:59,539 INFO L704 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-10-13 00:15:59,539 INFO L587 BuchiCegarLoop]: Abstraction has 114 states and 162 transitions. [2021-10-13 00:15:59,539 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-13 00:15:59,539 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 114 states and 162 transitions. [2021-10-13 00:15:59,542 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 80 [2021-10-13 00:15:59,543 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:15:59,543 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:15:59,543 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:15:59,544 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:15:59,544 INFO L791 eck$LassoCheckResult]: Stem: 356#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 349#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 350#L899 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 353#L907 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 354#L819 assume 0 != main_~tmp~6; 351#L793 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 309#L849-1 [2021-10-13 00:15:59,544 INFO L793 eck$LassoCheckResult]: Loop: 309#L849-1 assume !false; 324#L231 assume test_~splverifierCounter~0 < 4; 325#L232 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 337#L240 assume !(0 != test_~tmp~2); 339#L240-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 333#L250 assume !(0 != test_~tmp___0~0); 303#L250-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 342#L260 assume 0 != test_~tmp___2~0; 318#L266-1 assume !(0 != ~pumpRunning~0); 341#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 334#L91 assume !(0 != ~pumpRunning~0); 332#L66 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 327#L697-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 308#L843 assume 0 != __utac_acc__Specification3_spec__1_~tmp~7; 309#L849-1 [2021-10-13 00:15:59,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:59,545 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-13 00:15:59,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:59,546 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659320549] [2021-10-13 00:15:59,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:59,546 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:59,643 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:59,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:59,761 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:59,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:59,763 INFO L82 PathProgramCache]: Analyzing trace with hash -353546770, now seen corresponding path program 1 times [2021-10-13 00:15:59,763 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:59,763 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607091682] [2021-10-13 00:15:59,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:59,764 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:59,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:59,770 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:15:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:15:59,781 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:15:59,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:15:59,790 INFO L82 PathProgramCache]: Analyzing trace with hash 1249492756, now seen corresponding path program 1 times [2021-10-13 00:15:59,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:15:59,790 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730656200] [2021-10-13 00:15:59,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:15:59,791 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:15:59,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:15:59,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:15:59,906 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:15:59,907 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730656200] [2021-10-13 00:15:59,908 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730656200] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:15:59,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:15:59,910 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:15:59,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824494068] [2021-10-13 00:16:00,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:16:00,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:16:00,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:16:00,033 INFO L87 Difference]: Start difference. First operand 114 states and 162 transitions. cyclomatic complexity: 51 Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 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) [2021-10-13 00:16:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:16:00,222 INFO L93 Difference]: Finished difference Result 367 states and 533 transitions. [2021-10-13 00:16:00,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-13 00:16:00,223 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 367 states and 533 transitions. [2021-10-13 00:16:00,234 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 271 [2021-10-13 00:16:00,245 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 367 states to 367 states and 533 transitions. [2021-10-13 00:16:00,245 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 367 [2021-10-13 00:16:00,249 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 367 [2021-10-13 00:16:00,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 367 states and 533 transitions. [2021-10-13 00:16:00,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-13 00:16:00,259 INFO L681 BuchiCegarLoop]: Abstraction has 367 states and 533 transitions. [2021-10-13 00:16:00,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states and 533 transitions. [2021-10-13 00:16:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 222. [2021-10-13 00:16:00,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 222 states have (on average 1.3963963963963963) internal successors, (310), 221 states have internal predecessors, (310), 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) [2021-10-13 00:16:00,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 310 transitions. [2021-10-13 00:16:00,299 INFO L704 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2021-10-13 00:16:00,299 INFO L587 BuchiCegarLoop]: Abstraction has 222 states and 310 transitions. [2021-10-13 00:16:00,299 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-13 00:16:00,300 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 222 states and 310 transitions. [2021-10-13 00:16:00,302 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 160 [2021-10-13 00:16:00,302 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-13 00:16:00,302 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-13 00:16:00,304 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-13 00:16:00,304 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:16:00,304 INFO L791 eck$LassoCheckResult]: Stem: 876#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~string11.base, #t~string11.offset := #Ultimate.allocOnStack(13);call #t~string13.base, #t~string13.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string13.base, #t~string13.offset, 1);call write~init~int(110, #t~string13.base, 1 + #t~string13.offset, 1);call write~init~int(0, #t~string13.base, 2 + #t~string13.offset, 1);call #t~string15.base, #t~string15.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string15.base, #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 1 + #t~string15.offset, 1);call write~init~int(102, #t~string15.base, 2 + #t~string15.offset, 1);call write~init~int(0, #t~string15.base, 3 + #t~string15.offset, 1);call #t~string17.base, #t~string17.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string17.base, #t~string17.offset, 1);call write~init~int(80, #t~string17.base, 1 + #t~string17.offset, 1);call write~init~int(117, #t~string17.base, 2 + #t~string17.offset, 1);call write~init~int(109, #t~string17.base, 3 + #t~string17.offset, 1);call write~init~int(112, #t~string17.base, 4 + #t~string17.offset, 1);call write~init~int(58, #t~string17.base, 5 + #t~string17.offset, 1);call write~init~int(0, #t~string17.base, 6 + #t~string17.offset, 1);call #t~string19.base, #t~string19.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string19.base, #t~string19.offset, 1);call write~init~int(110, #t~string19.base, 1 + #t~string19.offset, 1);call write~init~int(0, #t~string19.base, 2 + #t~string19.offset, 1);call #t~string21.base, #t~string21.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string21.base, #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 1 + #t~string21.offset, 1);call write~init~int(102, #t~string21.base, 2 + #t~string21.offset, 1);call write~init~int(0, #t~string21.base, 3 + #t~string21.offset, 1);call #t~string23.base, #t~string23.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string23.base, #t~string23.offset, 1);call write~init~int(32, #t~string23.base, 1 + #t~string23.offset, 1);call write~init~int(0, #t~string23.base, 2 + #t~string23.offset, 1);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string25.base, #t~string25.offset, 1);call write~init~int(0, #t~string25.base, 1 + #t~string25.offset, 1);call #t~string48.base, #t~string48.offset := #Ultimate.allocOnStack(30);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(9);call #t~string50.base, #t~string50.offset := #Ultimate.allocOnStack(21);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(30);call #t~string52.base, #t~string52.offset := #Ultimate.allocOnStack(9);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(21);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(30);call #t~string58.base, #t~string58.offset := #Ultimate.allocOnStack(9);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(25);call #t~string60.base, #t~string60.offset := #Ultimate.allocOnStack(30);call #t~string61.base, #t~string61.offset := #Ultimate.allocOnStack(9);call #t~string62.base, #t~string62.offset := #Ultimate.allocOnStack(25);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);call #t~string68.base, #t~string68.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string68.base, #t~string68.offset, 1);call write~init~int(77, #t~string68.base, 1 + #t~string68.offset, 1);call write~init~int(101, #t~string68.base, 2 + #t~string68.offset, 1);call write~init~int(116, #t~string68.base, 3 + #t~string68.offset, 1);call write~init~int(104, #t~string68.base, 4 + #t~string68.offset, 1);call write~init~int(58, #t~string68.base, 5 + #t~string68.offset, 1);call write~init~int(0, #t~string68.base, 6 + #t~string68.offset, 1);call #t~string70.base, #t~string70.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string70.base, #t~string70.offset, 1);call write~init~int(82, #t~string70.base, 1 + #t~string70.offset, 1);call write~init~int(73, #t~string70.base, 2 + #t~string70.offset, 1);call write~init~int(84, #t~string70.base, 3 + #t~string70.offset, 1);call write~init~int(0, #t~string70.base, 4 + #t~string70.offset, 1);call #t~string72.base, #t~string72.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string72.base, #t~string72.offset, 1);call write~init~int(75, #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(41, #t~string74.base, #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 1 + #t~string74.offset, 1);~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 867#L-1 havoc main_#res;havoc main_#t~ret75, main_~retValue_acc~7, main_~tmp~6;havoc main_~retValue_acc~7;havoc main_~tmp~6; 868#L899 havoc valid_product_#res;havoc valid_product_~retValue_acc~9;havoc valid_product_~retValue_acc~9;valid_product_~retValue_acc~9 := 1;valid_product_#res := valid_product_~retValue_acc~9; 873#L907 main_#t~ret75 := valid_product_#res;main_~tmp~6 := main_#t~ret75;havoc main_#t~ret75; 874#L819 assume 0 != main_~tmp~6; 869#L793 havoc test_#t~nondet26, test_#t~nondet27, test_#t~nondet28, test_#t~nondet29, test_~splverifierCounter~0, test_~tmp~2, test_~tmp___0~0, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~2;havoc test_~tmp___0~0;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 870#L849-1 [2021-10-13 00:16:00,304 INFO L793 eck$LassoCheckResult]: Loop: 870#L849-1 assume !false; 961#L231 assume test_~splverifierCounter~0 < 4; 962#L232 test_~tmp~2 := test_#t~nondet26;havoc test_#t~nondet26; 1009#L240 assume !(0 != test_~tmp~2); 1007#L240-1 test_~tmp___0~0 := test_#t~nondet27;havoc test_#t~nondet27; 1006#L250 assume !(0 != test_~tmp___0~0); 1005#L250-1 test_~tmp___2~0 := test_#t~nondet28;havoc test_#t~nondet28; 1004#L260 assume 0 != test_~tmp___2~0; 1003#L266-1 assume !(0 != ~pumpRunning~0); 865#L59 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret7, processEnvironment_~tmp~0;havoc processEnvironment_~tmp~0; 844#L91 assume !(0 != ~pumpRunning~0); 838#L66 havoc __utac_acc__Specification3_spec__1_#t~ret76, __utac_acc__Specification3_spec__1_#t~ret77, __utac_acc__Specification3_spec__1_#t~ret78, __utac_acc__Specification3_spec__1_~tmp~7, __utac_acc__Specification3_spec__1_~tmp___0~1, __utac_acc__Specification3_spec__1_~tmp___1~1;havoc __utac_acc__Specification3_spec__1_~tmp~7;havoc __utac_acc__Specification3_spec__1_~tmp___0~1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~5;havoc isMethaneLevelCritical_~retValue_acc~5;isMethaneLevelCritical_~retValue_acc~5 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~5; 970#L697-1 __utac_acc__Specification3_spec__1_#t~ret76 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~7 := __utac_acc__Specification3_spec__1_#t~ret76;havoc __utac_acc__Specification3_spec__1_#t~ret76; 969#L843 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~7);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; 968#L729 __utac_acc__Specification3_spec__1_#t~ret77 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~1 := __utac_acc__Specification3_spec__1_#t~ret77;havoc __utac_acc__Specification3_spec__1_#t~ret77; 966#L849 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~1); 870#L849-1 [2021-10-13 00:16:00,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,305 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-13 00:16:00,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562202230] [2021-10-13 00:16:00,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,306 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,379 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:00,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,456 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:00,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,457 INFO L82 PathProgramCache]: Analyzing trace with hash -456023616, now seen corresponding path program 1 times [2021-10-13 00:16:00,457 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191271512] [2021-10-13 00:16:00,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,458 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,465 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:00,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,473 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:16:00,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:16:00,474 INFO L82 PathProgramCache]: Analyzing trace with hash -1828298394, now seen corresponding path program 1 times [2021-10-13 00:16:00,475 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:16:00,475 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945017689] [2021-10-13 00:16:00,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:16:00,475 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:16:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,543 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-13 00:16:00,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-13 00:16:00,619 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-13 00:17:01,099 WARN L207 SmtUtils]: Spent 1.01 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-13 00:18:13,936 WARN L207 SmtUtils]: Spent 36.21 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-13 00:18:14,117 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.10 12:18:14 BoogieIcfgContainer [2021-10-13 00:18:14,118 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-13 00:18:14,118 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:18:14,118 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:18:14,119 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:18:14,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:15:58" (3/4) ... [2021-10-13 00:18:14,122 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-13 00:18:14,177 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:18:14,178 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:18:14,179 INFO L168 Benchmark]: Toolchain (without parser) took 137898.98 ms. Allocated memory was 102.8 MB in the beginning and 163.6 MB in the end (delta: 60.8 MB). Free memory was 63.9 MB in the beginning and 79.0 MB in the end (delta: -15.1 MB). Peak memory consumption was 45.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,180 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 81.9 MB in the beginning and 81.8 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:18:14,181 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.05 ms. Allocated memory is still 102.8 MB. Free memory was 63.7 MB in the beginning and 70.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,181 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.36 ms. Allocated memory is still 102.8 MB. Free memory was 70.4 MB in the beginning and 67.4 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:18:14,182 INFO L168 Benchmark]: Boogie Preprocessor took 43.81 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 65.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,183 INFO L168 Benchmark]: RCFGBuilder took 1010.02 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 65.3 MB in the beginning and 105.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,184 INFO L168 Benchmark]: BuchiAutomizer took 135992.78 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 105.5 MB in the beginning and 81.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 99.8 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,185 INFO L168 Benchmark]: Witness Printer took 59.70 ms. Allocated memory is still 163.6 MB. Free memory was 81.1 MB in the beginning and 79.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:18:14,189 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 102.8 MB. Free memory was 81.9 MB in the beginning and 81.8 MB in the end (delta: 69.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 707.05 ms. Allocated memory is still 102.8 MB. Free memory was 63.7 MB in the beginning and 70.4 MB in the end (delta: -6.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 77.36 ms. Allocated memory is still 102.8 MB. Free memory was 70.4 MB in the beginning and 67.4 MB in the end (delta: 3.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 43.81 ms. Allocated memory is still 102.8 MB. Free memory was 67.4 MB in the beginning and 65.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1010.02 ms. Allocated memory was 102.8 MB in the beginning and 136.3 MB in the end (delta: 33.6 MB). Free memory was 65.3 MB in the beginning and 105.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 38.1 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 135992.78 ms. Allocated memory was 136.3 MB in the beginning and 163.6 MB in the end (delta: 27.3 MB). Free memory was 105.5 MB in the beginning and 81.1 MB in the end (delta: 24.3 MB). Peak memory consumption was 99.8 MB. Max. memory is 16.1 GB. * Witness Printer took 59.70 ms. Allocated memory is still 163.6 MB. Free memory was 81.1 MB in the beginning and 79.0 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 222 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 135.9s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 135.1s. 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 65.5ms AutomataMinimizationTime, 2 MinimizatonAttempts, 208 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 222 states and ocurred in iteration 2. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 221 SDtfs, 705 SDslu, 919 SDs, 0 SdLazy, 121 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 283.2ms 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: 230]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=30057, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7543b0e0=0, NULL=1, NULL=0, NULL=0, retValue_acc=0, NULL=30056, NULL=30080, methaneLevelCritical=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@171237f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7954c174=0, NULL=0, NULL=0, NULL=30061, tmp___1=0, NULL=30082, NULL=0, NULL=0, cleanupTimeShifts=4, NULL=30078, NULL=30071, NULL=30067, NULL=30059, tmp___0=1, tmp=0, NULL=0, NULL=0, NULL=0, NULL=0, systemActive=1, waterLevel=1, \result=1, NULL=30065, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1699fa50=0, NULL=0, retValue_acc=0, tmp___0=0, NULL=0, NULL=0, NULL=30063, NULL=0, NULL=0, NULL=0, NULL=30076, \result=1, head=0, pumpRunning=0, NULL=30073, NULL=30066, \result=0, NULL=30069, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5e0431c2=0, NULL=30083, NULL=30058, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e733f7f=56, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1510c3ed=0, NULL=0, NULL=30081, NULL=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e42c51e=0, NULL=0, tmp=1, NULL=0, NULL=30077, retValue_acc=1, NULL=30062, NULL=0, NULL=0, NULL=30068, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26f83d75=0, retValue_acc=1, tmp___2=56, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=30075, NULL=30060, tmp=0, NULL=30079, tmp___1=0, head=0, NULL=30072, NULL=0, NULL=0, NULL=30064, NULL=30074, NULL=0, NULL=30070} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L51] int pumpRunning = 0; [L52] int systemActive = 1; [L456] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L654] int waterLevel = 1; [L655] int methaneLevelCritical = 0; [L734] int cleanupTimeShifts = 4; [L810] int retValue_acc ; [L811] int tmp ; [L903] int retValue_acc ; [L906] retValue_acc = 1 [L907] return (retValue_acc); [L817] tmp = valid_product() [L819] COND TRUE \read(tmp) [L221] int splverifierCounter ; [L222] int tmp ; [L223] int tmp___0 ; [L224] int tmp___1 ; [L225] int tmp___2 ; [L228] splverifierCounter = 0 Loop: [L230] COND TRUE 1 [L232] COND TRUE splverifierCounter < 4 [L238] tmp = __VERIFIER_nondet_int() [L240] COND FALSE !(\read(tmp)) [L248] tmp___0 = __VERIFIER_nondet_int() [L250] COND FALSE !(\read(tmp___0)) [L258] tmp___2 = __VERIFIER_nondet_int() [L260] COND TRUE \read(tmp___2) [L59] COND FALSE !(\read(pumpRunning)) [L66] COND TRUE \read(systemActive) [L88] int tmp ; [L91] COND FALSE !(\read(pumpRunning)) [L835] int tmp ; [L836] int tmp___0 ; [L837] int tmp___1 ; [L693] int retValue_acc ; [L696] retValue_acc = methaneLevelCritical [L697] return (retValue_acc); [L841] tmp = isMethaneLevelCritical() [L843] COND FALSE !(\read(tmp)) [L725] int retValue_acc ; [L728] retValue_acc = waterLevel [L729] return (retValue_acc); [L847] tmp___0 = getWaterLevel() [L849] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-13 00:18:14,275 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_58cd85d4-1c64-486a-a3ce-5cadf9034d10/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request...