./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version e943c265 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be --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 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d ................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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-e943c26 [2021-10-21 20:24:04,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 20:24:04,930 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 20:24:04,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 20:24:04,964 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 20:24:04,965 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 20:24:04,967 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 20:24:04,969 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 20:24:04,972 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 20:24:04,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 20:24:04,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 20:24:04,976 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 20:24:04,977 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 20:24:04,985 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 20:24:04,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 20:24:04,990 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 20:24:04,991 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 20:24:04,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 20:24:04,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 20:24:04,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 20:24:05,000 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 20:24:05,002 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 20:24:05,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 20:24:05,007 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 20:24:05,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 20:24:05,020 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 20:24:05,021 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 20:24:05,022 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 20:24:05,023 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 20:24:05,024 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 20:24:05,025 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 20:24:05,026 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 20:24:05,027 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 20:24:05,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 20:24:05,032 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 20:24:05,033 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 20:24:05,034 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 20:24:05,035 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 20:24:05,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 20:24:05,037 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 20:24:05,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 20:24:05,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 20:24:05,074 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 20:24:05,088 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 20:24:05,088 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 20:24:05,088 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 20:24:05,089 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 20:24:05,090 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 20:24:05,090 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 20:24:05,090 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 20:24:05,090 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 20:24:05,090 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 20:24:05,091 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 20:24:05,091 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 20:24:05,091 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 20:24:05,091 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 20:24:05,092 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 20:24:05,092 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 20:24:05,092 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 20:24:05,093 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 20:24:05,093 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 20:24:05,093 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 20:24:05,093 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 20:24:05,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 20:24:05,094 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 20:24:05,094 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 20:24:05,094 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 20:24:05,095 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 20:24:05,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 20:24:05,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 20:24:05,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 20:24:05,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 20:24:05,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 20:24:05,096 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 20:24:05,097 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 20:24:05,098 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_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e3065d54459a1af9237785e443ea1bc130aed8710eaae31e283e0fdf62db72d [2021-10-21 20:24:05,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 20:24:05,436 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 20:24:05,439 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 20:24:05,440 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 20:24:05,441 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 20:24:05,443 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2021-10-21 20:24:05,516 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/data/b82420d5e/ad226b6713234746a6b27e52014d3fc7/FLAGa7835e655 [2021-10-21 20:24:06,132 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 20:24:06,133 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c [2021-10-21 20:24:06,146 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/data/b82420d5e/ad226b6713234746a6b27e52014d3fc7/FLAGa7835e655 [2021-10-21 20:24:06,399 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/data/b82420d5e/ad226b6713234746a6b27e52014d3fc7 [2021-10-21 20:24:06,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 20:24:06,403 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 20:24:06,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 20:24:06,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 20:24:06,423 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 20:24:06,423 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:24:06" (1/1) ... [2021-10-21 20:24:06,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ccf3cf9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:06, skipping insertion in model container [2021-10-21 20:24:06,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 08:24:06" (1/1) ... [2021-10-21 20:24:06,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 20:24:06,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 20:24:06,882 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_9524bea4-f1a4-4b33-9152-27384ed66da3/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2021-10-21 20:24:06,968 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:24:06,992 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 20:24:07,085 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_9524bea4-f1a4-4b33-9152-27384ed66da3/sv-benchmarks/c/product-lines/minepump_spec2_product61.cil.c[13371,13384] [2021-10-21 20:24:07,106 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 20:24:07,131 INFO L208 MainTranslator]: Completed translation [2021-10-21 20:24:07,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07 WrapperNode [2021-10-21 20:24:07,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 20:24:07,133 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 20:24:07,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 20:24:07,134 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 20:24:07,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,307 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 20:24:07,308 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 20:24:07,308 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 20:24:07,308 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 20:24:07,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,356 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,420 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,428 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 20:24:07,429 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 20:24:07,429 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 20:24:07,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 20:24:07,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (1/1) ... [2021-10-21 20:24:07,440 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 20:24:07,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 20:24:07,480 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 20:24:07,506 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 20:24:07,548 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 20:24:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 20:24:07,549 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 20:24:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 20:24:08,837 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 20:24:08,850 INFO L299 CfgBuilder]: Removed 350 assume(true) statements. [2021-10-21 20:24:08,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:08 BoogieIcfgContainer [2021-10-21 20:24:08,854 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 20:24:08,855 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 20:24:08,855 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 20:24:08,871 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 20:24:08,872 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:08,872 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 08:24:06" (1/3) ... [2021-10-21 20:24:08,874 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@198fa870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:24:08, skipping insertion in model container [2021-10-21 20:24:08,874 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:08,874 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 08:24:07" (2/3) ... [2021-10-21 20:24:08,875 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@198fa870 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 08:24:08, skipping insertion in model container [2021-10-21 20:24:08,875 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 20:24:08,875 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:08" (3/3) ... [2021-10-21 20:24:08,877 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product61.cil.c [2021-10-21 20:24:08,932 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 20:24:08,932 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 20:24:08,932 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 20:24:08,932 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 20:24:08,932 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 20:24:08,932 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 20:24:08,932 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 20:24:08,933 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 20:24:08,966 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 226 states, 225 states have (on average 1.511111111111111) internal successors, (340), 225 states have internal predecessors, (340), 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) [2021-10-21 20:24:09,018 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-21 20:24:09,022 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:09,022 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:09,033 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:09,034 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:09,034 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 20:24:09,038 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 226 states, 225 states have (on average 1.511111111111111) internal successors, (340), 225 states have internal predecessors, (340), 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) [2021-10-21 20:24:09,059 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 147 [2021-10-21 20:24:09,059 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:09,059 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:09,061 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:09,061 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:09,067 INFO L791 eck$LassoCheckResult]: Stem: 220#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 136#L-1true havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 205#L594true havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 4#L602true main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 16#L183true assume 0 != main_~tmp~1; 142#L155true ~methAndRunningLastTime~0 := 0; 73#L59true havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 124#L70-1true [2021-10-21 20:24:09,068 INFO L793 eck$LassoCheckResult]: Loop: 124#L70-1true assume !false; 143#L618true assume test_~splverifierCounter~0 < 4; 181#L619true test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 30#L627true assume !(0 != test_~tmp~5); 199#L627-1true test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 72#L637true assume !(0 != test_~tmp___0~1); 40#L637-1true test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 85#L647true assume 0 != test_~tmp___2~0; 80#L653-2true assume !(0 != ~pumpRunning~0); 45#L789true assume !(0 != ~systemActive~0); 55#L796true havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 84#L720-5true __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 42#L70true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 124#L70-1true [2021-10-21 20:24:09,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:09,075 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 1 times [2021-10-21 20:24:09,086 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:09,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473456449] [2021-10-21 20:24:09,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:09,098 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:09,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:09,417 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:09,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:09,639 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:09,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:09,644 INFO L82 PathProgramCache]: Analyzing trace with hash 9156234, now seen corresponding path program 1 times [2021-10-21 20:24:09,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:09,644 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115648059] [2021-10-21 20:24:09,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:09,645 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:09,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:09,654 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:09,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:09,668 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:09,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:09,670 INFO L82 PathProgramCache]: Analyzing trace with hash 842452740, now seen corresponding path program 1 times [2021-10-21 20:24:09,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:09,671 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665220464] [2021-10-21 20:24:09,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:09,672 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:09,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:09,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:09,891 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:09,891 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665220464] [2021-10-21 20:24:09,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665220464] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:24:09,893 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:24:09,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 20:24:09,893 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869606883] [2021-10-21 20:24:10,129 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:10,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 20:24:10,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 20:24:10,160 INFO L87 Difference]: Start difference. First operand has 226 states, 225 states have (on average 1.511111111111111) internal successors, (340), 225 states have internal predecessors, (340), 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 3.3333333333333335) internal successors, (20), 5 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) [2021-10-21 20:24:10,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:10,450 INFO L93 Difference]: Finished difference Result 226 states and 329 transitions. [2021-10-21 20:24:10,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-21 20:24:10,453 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 226 states and 329 transitions. [2021-10-21 20:24:10,459 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-10-21 20:24:10,467 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 226 states to 219 states and 322 transitions. [2021-10-21 20:24:10,469 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 219 [2021-10-21 20:24:10,471 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 219 [2021-10-21 20:24:10,471 INFO L73 IsDeterministic]: Start isDeterministic. Operand 219 states and 322 transitions. [2021-10-21 20:24:10,474 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:24:10,474 INFO L681 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2021-10-21 20:24:10,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states and 322 transitions. [2021-10-21 20:24:10,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 219. [2021-10-21 20:24:10,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 219 states have (on average 1.4703196347031964) internal successors, (322), 218 states have internal predecessors, (322), 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) [2021-10-21 20:24:10,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 322 transitions. [2021-10-21 20:24:10,525 INFO L704 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2021-10-21 20:24:10,525 INFO L587 BuchiCegarLoop]: Abstraction has 219 states and 322 transitions. [2021-10-21 20:24:10,525 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 20:24:10,525 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 219 states and 322 transitions. [2021-10-21 20:24:10,528 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 145 [2021-10-21 20:24:10,529 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:10,529 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:10,530 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:10,530 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:10,531 INFO L791 eck$LassoCheckResult]: Stem: 688#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 658#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 659#L594 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 472#L602 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 473#L183 assume 0 != main_~tmp~1; 498#L155 ~methAndRunningLastTime~0 := 0; 588#L59 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 545#L70-1 [2021-10-21 20:24:10,531 INFO L793 eck$LassoCheckResult]: Loop: 545#L70-1 assume !false; 644#L618 assume test_~splverifierCounter~0 < 4; 662#L619 test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 521#L627 assume !(0 != test_~tmp~5); 523#L627-1 test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 586#L637 assume !(0 != test_~tmp___0~1); 540#L637-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 541#L647 assume 0 != test_~tmp___2~0; 517#L653-2 assume !(0 != ~pumpRunning~0); 549#L789 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 511#L873 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 506#L847-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 504#L821-3 assume !(0 == ~pumpRunning~0); 488#L796 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 565#L720-5 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 544#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 545#L70-1 [2021-10-21 20:24:10,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:10,532 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 2 times [2021-10-21 20:24:10,533 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:10,533 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645340719] [2021-10-21 20:24:10,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:10,534 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:10,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:10,593 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:10,677 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:10,678 INFO L82 PathProgramCache]: Analyzing trace with hash -1236370745, now seen corresponding path program 1 times [2021-10-21 20:24:10,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:10,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161676286] [2021-10-21 20:24:10,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:10,679 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 20:24:10,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-21 20:24:10,717 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 20:24:10,718 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161676286] [2021-10-21 20:24:10,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161676286] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 20:24:10,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 20:24:10,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 20:24:10,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808658523] [2021-10-21 20:24:10,719 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 20:24:10,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 20:24:10,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 20:24:10,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 20:24:10,721 INFO L87 Difference]: Start difference. First operand 219 states and 322 transitions. cyclomatic complexity: 105 Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-21 20:24:10,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 20:24:10,832 INFO L93 Difference]: Finished difference Result 218 states and 304 transitions. [2021-10-21 20:24:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 20:24:10,833 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 218 states and 304 transitions. [2021-10-21 20:24:10,836 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2021-10-21 20:24:10,839 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 218 states to 218 states and 304 transitions. [2021-10-21 20:24:10,839 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 218 [2021-10-21 20:24:10,840 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 218 [2021-10-21 20:24:10,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 218 states and 304 transitions. [2021-10-21 20:24:10,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 20:24:10,842 INFO L681 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2021-10-21 20:24:10,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states and 304 transitions. [2021-10-21 20:24:10,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2021-10-21 20:24:10,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 218 states have (on average 1.3944954128440368) internal successors, (304), 217 states have internal predecessors, (304), 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) [2021-10-21 20:24:10,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 304 transitions. [2021-10-21 20:24:10,854 INFO L704 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2021-10-21 20:24:10,854 INFO L587 BuchiCegarLoop]: Abstraction has 218 states and 304 transitions. [2021-10-21 20:24:10,854 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 20:24:10,854 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 218 states and 304 transitions. [2021-10-21 20:24:10,856 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 148 [2021-10-21 20:24:10,856 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 20:24:10,857 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 20:24:10,857 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:10,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 20:24:10,858 INFO L791 eck$LassoCheckResult]: Stem: 1090#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~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~string31.base, #t~string31.offset := #Ultimate.allocOnStack(30);call #t~string32.base, #t~string32.offset := #Ultimate.allocOnStack(9);call #t~string33.base, #t~string33.offset := #Ultimate.allocOnStack(21);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~string40.base, #t~string40.offset := #Ultimate.allocOnStack(30);call #t~string41.base, #t~string41.offset := #Ultimate.allocOnStack(9);call #t~string42.base, #t~string42.offset := #Ultimate.allocOnStack(25);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(13);call #t~string53.base, #t~string53.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string53.base, #t~string53.offset, 1);call write~init~int(77, #t~string53.base, 1 + #t~string53.offset, 1);call write~init~int(101, #t~string53.base, 2 + #t~string53.offset, 1);call write~init~int(116, #t~string53.base, 3 + #t~string53.offset, 1);call write~init~int(104, #t~string53.base, 4 + #t~string53.offset, 1);call write~init~int(58, #t~string53.base, 5 + #t~string53.offset, 1);call write~init~int(0, #t~string53.base, 6 + #t~string53.offset, 1);call #t~string55.base, #t~string55.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string55.base, #t~string55.offset, 1);call write~init~int(82, #t~string55.base, 1 + #t~string55.offset, 1);call write~init~int(73, #t~string55.base, 2 + #t~string55.offset, 1);call write~init~int(84, #t~string55.base, 3 + #t~string55.offset, 1);call write~init~int(0, #t~string55.base, 4 + #t~string55.offset, 1);call #t~string57.base, #t~string57.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string57.base, #t~string57.offset, 1);call write~init~int(75, #t~string57.base, 1 + #t~string57.offset, 1);call write~init~int(0, #t~string57.base, 2 + #t~string57.offset, 1);call #t~string59.base, #t~string59.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string59.base, #t~string59.offset, 1);call write~init~int(0, #t~string59.base, 1 + #t~string59.offset, 1);call #t~string66.base, #t~string66.offset := #Ultimate.allocOnStack(13);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(7);call write~init~int(44, #t~string72.base, #t~string72.offset, 1);call write~init~int(80, #t~string72.base, 1 + #t~string72.offset, 1);call write~init~int(117, #t~string72.base, 2 + #t~string72.offset, 1);call write~init~int(109, #t~string72.base, 3 + #t~string72.offset, 1);call write~init~int(112, #t~string72.base, 4 + #t~string72.offset, 1);call write~init~int(58, #t~string72.base, 5 + #t~string72.offset, 1);call write~init~int(0, #t~string72.base, 6 + #t~string72.offset, 1);call #t~string74.base, #t~string74.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string74.base, #t~string74.offset, 1);call write~init~int(110, #t~string74.base, 1 + #t~string74.offset, 1);call write~init~int(0, #t~string74.base, 2 + #t~string74.offset, 1);call #t~string76.base, #t~string76.offset := #Ultimate.allocOnStack(4);call write~init~int(79, #t~string76.base, #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 1 + #t~string76.offset, 1);call write~init~int(102, #t~string76.base, 2 + #t~string76.offset, 1);call write~init~int(0, #t~string76.base, 3 + #t~string76.offset, 1);call #t~string78.base, #t~string78.offset := #Ultimate.allocOnStack(3);call write~init~int(41, #t~string78.base, #t~string78.offset, 1);call write~init~int(32, #t~string78.base, 1 + #t~string78.offset, 1);call write~init~int(0, #t~string78.base, 2 + #t~string78.offset, 1);call #t~string80.base, #t~string80.offset := #Ultimate.allocOnStack(2);call write~init~int(10, #t~string80.base, #t~string80.offset, 1);call write~init~int(0, #t~string80.base, 1 + #t~string80.offset, 1);~methAndRunningLastTime~0 := 0;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 995#L-1 havoc main_#res;havoc main_#t~ret9, main_~retValue_acc~0, main_~tmp~1;havoc main_~retValue_acc~0;havoc main_~tmp~1; 996#L594 havoc valid_product_#res;havoc valid_product_~retValue_acc~5;havoc valid_product_~retValue_acc~5;valid_product_~retValue_acc~5 := 1;valid_product_#res := valid_product_~retValue_acc~5; 923#L602 main_#t~ret9 := valid_product_#res;main_~tmp~1 := main_#t~ret9;havoc main_#t~ret9; 924#L183 assume 0 != main_~tmp~1; 969#L155 ~methAndRunningLastTime~0 := 0; 1008#L59 havoc test_#t~nondet46, test_#t~nondet47, test_#t~nondet48, test_#t~nondet49, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~0, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~0;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1083#L70-1 [2021-10-21 20:24:10,858 INFO L793 eck$LassoCheckResult]: Loop: 1083#L70-1 assume !false; 1009#L618 assume test_~splverifierCounter~0 < 4; 1010#L619 test_~tmp~5 := test_#t~nondet46;havoc test_#t~nondet46; 1019#L627 assume !(0 != test_~tmp~5); 1021#L627-1 test_~tmp___0~1 := test_#t~nondet47;havoc test_#t~nondet47; 1081#L637 assume !(0 != test_~tmp___0~1); 1045#L637-1 test_~tmp___2~0 := test_#t~nondet48;havoc test_#t~nondet48; 1046#L647 assume 0 != test_~tmp___2~0; 1004#L653-2 assume !(0 != ~pumpRunning~0); 1053#L789 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~8;havoc processEnvironment_~tmp~8; 997#L873 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__methaneQuery_#t~ret61, processEnvironment__wrappee__methaneQuery_~tmp~7;havoc processEnvironment__wrappee__methaneQuery_~tmp~7; 987#L847-1 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret60, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 985#L821-3 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~10, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~10;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~8;havoc isHighWaterSensorDry_~retValue_acc~8; 986#L760-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~8; 1015#L765-3 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~10 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 1016#L992-9 assume 0 != isHighWaterLevel_~tmp~10;isHighWaterLevel_~tmp___0~2 := 0; 981#L992-11 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 982#L998-3 processEnvironment__wrappee__highWaterSensor_#t~ret60 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret60;havoc processEnvironment__wrappee__highWaterSensor_#t~ret60; 1043#L825-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 935#L796 havoc __utac_acc__Specification2_spec__2_#t~ret7, __utac_acc__Specification2_spec__2_#t~ret8, __utac_acc__Specification2_spec__2_~tmp~0, __utac_acc__Specification2_spec__2_~tmp___0~0;havoc __utac_acc__Specification2_spec__2_~tmp~0;havoc __utac_acc__Specification2_spec__2_~tmp___0~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~6;havoc isMethaneLevelCritical_~retValue_acc~6;isMethaneLevelCritical_~retValue_acc~6 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~6; 1119#L720-5 __utac_acc__Specification2_spec__2_#t~ret7 := isMethaneLevelCritical_#res;__utac_acc__Specification2_spec__2_~tmp~0 := __utac_acc__Specification2_spec__2_#t~ret7;havoc __utac_acc__Specification2_spec__2_#t~ret7; 1115#L70 assume !(0 != __utac_acc__Specification2_spec__2_~tmp~0);~methAndRunningLastTime~0 := 0; 1083#L70-1 [2021-10-21 20:24:10,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:10,859 INFO L82 PathProgramCache]: Analyzing trace with hash 1804904775, now seen corresponding path program 3 times [2021-10-21 20:24:10,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:10,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320240898] [2021-10-21 20:24:10,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:10,860 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:10,927 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:11,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:11,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:11,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:11,024 INFO L82 PathProgramCache]: Analyzing trace with hash -2082517261, now seen corresponding path program 1 times [2021-10-21 20:24:11,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:11,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757905585] [2021-10-21 20:24:11,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:11,025 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:11,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:11,034 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:11,058 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:24:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 20:24:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1345265593, now seen corresponding path program 1 times [2021-10-21 20:24:11,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 20:24:11,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864195653] [2021-10-21 20:24:11,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 20:24:11,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 20:24:11,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:11,102 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 20:24:11,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 20:24:11,156 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 20:25:23,225 WARN L207 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 495 DAG size of output: 437 [2021-10-21 20:26:32,668 WARN L207 SmtUtils]: Spent 33.03 s on a formula simplification that was a NOOP. DAG size: 435 [2021-10-21 20:26:32,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 08:26:32 BoogieIcfgContainer [2021-10-21 20:26:32,843 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 20:26:32,844 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 20:26:32,844 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 20:26:32,844 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 20:26:32,845 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 08:24:08" (3/4) ... [2021-10-21 20:26:32,848 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 20:26:32,909 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 20:26:32,910 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 20:26:32,911 INFO L168 Benchmark]: Toolchain (without parser) took 146507.63 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 76.8 MB in the beginning and 39.4 MB in the end (delta: 37.4 MB). Peak memory consumption was 70.9 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,912 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory is still 94.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 20:26:32,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 713.61 ms. Allocated memory is still 117.4 MB. Free memory was 76.7 MB in the beginning and 83.7 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 173.69 ms. Allocated memory is still 117.4 MB. Free memory was 83.7 MB in the beginning and 78.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,914 INFO L168 Benchmark]: Boogie Preprocessor took 120.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 74.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,914 INFO L168 Benchmark]: RCFGBuilder took 1424.77 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 70.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,915 INFO L168 Benchmark]: BuchiAutomizer took 143988.25 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 70.6 MB in the beginning and 42.4 MB in the end (delta: 28.2 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,916 INFO L168 Benchmark]: Witness Printer took 66.29 ms. Allocated memory is still 151.0 MB. Free memory was 42.4 MB in the beginning and 39.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 20:26:32,922 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 117.4 MB. Free memory is still 94.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 713.61 ms. Allocated memory is still 117.4 MB. Free memory was 76.7 MB in the beginning and 83.7 MB in the end (delta: -7.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 173.69 ms. Allocated memory is still 117.4 MB. Free memory was 83.7 MB in the beginning and 78.2 MB in the end (delta: 5.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 120.53 ms. Allocated memory is still 117.4 MB. Free memory was 78.2 MB in the beginning and 74.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1424.77 ms. Allocated memory is still 117.4 MB. Free memory was 74.4 MB in the beginning and 70.6 MB in the end (delta: 3.8 MB). Peak memory consumption was 40.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 143988.25 ms. Allocated memory was 117.4 MB in the beginning and 151.0 MB in the end (delta: 33.6 MB). Free memory was 70.6 MB in the beginning and 42.4 MB in the end (delta: 28.2 MB). Peak memory consumption was 71.5 MB. Max. memory is 16.1 GB. * Witness Printer took 66.29 ms. Allocated memory is still 151.0 MB. Free memory was 42.4 MB in the beginning and 39.4 MB in the end (delta: 3.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 218 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 143.8s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 143.1s. Construction of modules took 0.2s. Büchi inclusion checks took 0.1s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 44.3ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 219 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 553 SDtfs, 1155 SDslu, 83 SDs, 0 SdLazy, 50 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 273.2ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 617]: 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=0, NULL=18797, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f1498dd=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@778e9787=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@388766c=59, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73c82d98=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22c6eb9e=0, NULL=0, methaneLevelCritical=0, NULL=18786, tmp=0, NULL=0, NULL=18776, NULL=18787, tmp___1=0, NULL=18782, NULL=0, NULL=18773, cleanupTimeShifts=4, NULL=18777, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@725408f8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1243d71e=0, waterLevel=1, NULL=0, NULL=0, \result=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@25243db5=0, head=0, pumpRunning=0, retValue_acc=1, NULL=18798, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ae6f384=0, NULL=18800, tmp=1, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, NULL=0, NULL=0, NULL=18795, tmp___0=0, methAndRunningLastTime=0, NULL=18784, NULL=18783, head=0, NULL=0, NULL=18781, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30dc4cfb=0, NULL=0, NULL=0, tmp=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4626c6d0=0, tmp=0, retValue_acc=0, NULL=0, NULL=18775, NULL=18788, NULL=18774, tmp___0=0, NULL=0, NULL=18785, NULL=18792, NULL=0, NULL=0, NULL=18778, NULL=18794, tmp=0, NULL=18793, NULL=0, NULL=0, systemActive=1, NULL=0, retValue_acc=0, \result=0, NULL=0, NULL=0, NULL=0, NULL=18799, \result=0, NULL=18790, NULL=0, retValue_acc=1, tmp___0=0, NULL=18780, tmp___2=59, tmp=1, splverifierCounter=0, NULL=0, NULL=0, \result=0, NULL=18779, NULL=18789, tmp=0, NULL=18791, NULL=18796} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int methAndRunningLastTime ; [L92] int cleanupTimeShifts = 4; [L366] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L677] int waterLevel = 1; [L678] int methaneLevelCritical = 0; [L782] int pumpRunning = 0; [L783] int systemActive = 1; [L174] int retValue_acc ; [L175] int tmp ; [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L181] tmp = valid_product() [L183] COND TRUE \read(tmp) [L58] methAndRunningLastTime = 0 [L608] int splverifierCounter ; [L609] int tmp ; [L610] int tmp___0 ; [L611] int tmp___1 ; [L612] int tmp___2 ; [L615] splverifierCounter = 0 Loop: [L617] COND TRUE 1 [L619] COND TRUE splverifierCounter < 4 [L625] tmp = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp)) [L635] tmp___0 = __VERIFIER_nondet_int() [L637] COND FALSE !(\read(tmp___0)) [L645] tmp___2 = __VERIFIER_nondet_int() [L647] COND TRUE \read(tmp___2) [L789] COND FALSE !(\read(pumpRunning)) [L796] COND TRUE \read(systemActive) [L870] int tmp ; [L873] COND FALSE !(\read(pumpRunning)) [L844] int tmp ; [L847] COND FALSE !(\read(pumpRunning)) [L818] int tmp ; [L821] COND TRUE ! pumpRunning [L984] int retValue_acc ; [L985] int tmp ; [L986] int tmp___0 ; [L757] int retValue_acc ; [L760] COND TRUE waterLevel < 2 [L761] retValue_acc = 1 [L762] return (retValue_acc); [L990] tmp = isHighWaterSensorDry() [L992] COND TRUE \read(tmp) [L993] tmp___0 = 0 [L997] retValue_acc = tmp___0 [L998] return (retValue_acc); [L823] tmp = isHighWaterLevel() [L825] COND FALSE !(\read(tmp)) [L63] int tmp ; [L64] int tmp___0 ; [L716] int retValue_acc ; [L719] retValue_acc = methaneLevelCritical [L720] return (retValue_acc); [L68] tmp = isMethaneLevelCritical() [L70] COND FALSE !(\read(tmp)) [L86] methAndRunningLastTime = 0 End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 20:26:33,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9524bea4-f1a4-4b33-9152-27384ed66da3/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...