./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.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_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/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_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/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_c975cc76-e235-4dcf-9c1a-9c36ae639283/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 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 19:32:53,229 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-21 19:32:53,233 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-21 19:32:53,302 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-21 19:32:53,303 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-21 19:32:53,308 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-21 19:32:53,310 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-21 19:32:53,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-21 19:32:53,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-21 19:32:53,325 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-21 19:32:53,326 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-21 19:32:53,329 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-21 19:32:53,329 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-21 19:32:53,332 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-21 19:32:53,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-21 19:32:53,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-21 19:32:53,342 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-21 19:32:53,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-21 19:32:53,347 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-21 19:32:53,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-21 19:32:53,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-21 19:32:53,361 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-21 19:32:53,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-21 19:32:53,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-21 19:32:53,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-21 19:32:53,379 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-21 19:32:53,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-21 19:32:53,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-21 19:32:53,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-21 19:32:53,386 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-21 19:32:53,386 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-21 19:32:53,388 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-21 19:32:53,390 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-21 19:32:53,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-21 19:32:53,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-21 19:32:53,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-21 19:32:53,396 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-21 19:32:53,396 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-21 19:32:53,397 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-21 19:32:53,398 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-21 19:32:53,399 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-21 19:32:53,400 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-10-21 19:32:53,460 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-21 19:32:53,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-21 19:32:53,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-21 19:32:53,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-21 19:32:53,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-21 19:32:53,464 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-21 19:32:53,464 INFO L138 SettingsManager]: * Use SBE=true [2021-10-21 19:32:53,464 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-10-21 19:32:53,465 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-10-21 19:32:53,465 INFO L138 SettingsManager]: * Use old map elimination=false [2021-10-21 19:32:53,466 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-10-21 19:32:53,467 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-10-21 19:32:53,467 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-10-21 19:32:53,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-21 19:32:53,468 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-21 19:32:53,468 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-10-21 19:32:53,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-21 19:32:53,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-21 19:32:53,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-21 19:32:53,469 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-10-21 19:32:53,469 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-10-21 19:32:53,470 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-10-21 19:32:53,470 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-21 19:32:53,470 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-21 19:32:53,470 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-10-21 19:32:53,471 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-21 19:32:53,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-10-21 19:32:53,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-21 19:32:53,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-21 19:32:53,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-21 19:32:53,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-21 19:32:53,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-21 19:32:53,477 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-10-21 19:32:53,477 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_c975cc76-e235-4dcf-9c1a-9c36ae639283/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44dae38cb994480933527955346e93b306d1aac023f2c5b3e53f2823ec637c09 [2021-10-21 19:32:53,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-21 19:32:53,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-21 19:32:53,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-21 19:32:53,850 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-21 19:32:53,852 INFO L275 PluginConnector]: CDTParser initialized [2021-10-21 19:32:53,853 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/../../sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-21 19:32:53,932 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/data/a8cdfa9d8/b6378dedb93547d8a2d0ef645410a0a3/FLAGcc9400af9 [2021-10-21 19:32:54,606 INFO L306 CDTParser]: Found 1 translation units. [2021-10-21 19:32:54,607 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c [2021-10-21 19:32:54,636 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/data/a8cdfa9d8/b6378dedb93547d8a2d0ef645410a0a3/FLAGcc9400af9 [2021-10-21 19:32:54,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/data/a8cdfa9d8/b6378dedb93547d8a2d0ef645410a0a3 [2021-10-21 19:32:54,827 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-21 19:32:54,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-21 19:32:54,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:54,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-21 19:32:54,840 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-21 19:32:54,841 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:54" (1/1) ... [2021-10-21 19:32:54,843 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@290034bf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:54, skipping insertion in model container [2021-10-21 19:32:54,844 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.10 07:32:54" (1/1) ... [2021-10-21 19:32:54,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-21 19:32:54,928 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-21 19:32:55,261 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_c975cc76-e235-4dcf-9c1a-9c36ae639283/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-21 19:32:55,287 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:55,300 INFO L203 MainTranslator]: Completed pre-run [2021-10-21 19:32:55,413 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_c975cc76-e235-4dcf-9c1a-9c36ae639283/sv-benchmarks/c/product-lines/minepump_spec3_product59.cil.c[15143,15156] [2021-10-21 19:32:55,442 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-21 19:32:55,472 INFO L208 MainTranslator]: Completed translation [2021-10-21 19:32:55,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55 WrapperNode [2021-10-21 19:32:55,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-21 19:32:55,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:55,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-21 19:32:55,475 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-21 19:32:55,484 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,505 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-21 19:32:55,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-21 19:32:55,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-21 19:32:55,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-21 19:32:55,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,611 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,660 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,663 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-21 19:32:55,670 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-21 19:32:55,670 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-21 19:32:55,671 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-21 19:32:55,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (1/1) ... [2021-10-21 19:32:55,700 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-10-21 19:32:55,715 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/z3 [2021-10-21 19:32:55,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-10-21 19:32:55,742 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-10-21 19:32:55,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-21 19:32:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-21 19:32:55,782 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-21 19:32:55,782 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-21 19:32:57,160 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-21 19:32:57,160 INFO L299 CfgBuilder]: Removed 202 assume(true) statements. [2021-10-21 19:32:57,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:57 BoogieIcfgContainer [2021-10-21 19:32:57,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-21 19:32:57,164 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-10-21 19:32:57,164 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-10-21 19:32:57,171 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-10-21 19:32:57,172 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:57,172 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.10 07:32:54" (1/3) ... [2021-10-21 19:32:57,173 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1163cae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:57, skipping insertion in model container [2021-10-21 19:32:57,173 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:57,173 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.10 07:32:55" (2/3) ... [2021-10-21 19:32:57,174 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1163cae6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.10 07:32:57, skipping insertion in model container [2021-10-21 19:32:57,174 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-10-21 19:32:57,174 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:57" (3/3) ... [2021-10-21 19:32:57,175 INFO L389 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product59.cil.c [2021-10-21 19:32:57,252 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-10-21 19:32:57,253 INFO L360 BuchiCegarLoop]: Hoare is false [2021-10-21 19:32:57,253 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-10-21 19:32:57,253 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-21 19:32:57,253 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-21 19:32:57,253 INFO L364 BuchiCegarLoop]: Difference is false [2021-10-21 19:32:57,253 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-21 19:32:57,253 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-10-21 19:32:57,314 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 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 19:32:57,355 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2021-10-21 19:32:57,355 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:57,356 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:57,366 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:57,366 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:57,366 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-10-21 19:32:57,370 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 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 19:32:57,381 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 91 [2021-10-21 19:32:57,381 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:57,381 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:57,382 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:57,382 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:57,388 INFO L791 eck$LassoCheckResult]: Stem: 132#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 43#L-1true havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 130#L651true 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; 34#L659true main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 12#L615true assume 0 != main_~tmp~3; 102#L588true havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 123#L681-1true [2021-10-21 19:32:57,389 INFO L793 eck$LassoCheckResult]: Loop: 123#L681-1true assume !false; 94#L721true assume test_~splverifierCounter~0 < 4; 74#L722true test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 67#L730true assume !(0 != test_~tmp~5); 125#L730-1true test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 56#L740true assume !(0 != test_~tmp___0~1); 126#L740-1true test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 116#L750true assume 0 != test_~tmp___2~0; 64#L756-1true assume !(0 != ~pumpRunning~0); 21#L786true assume !(0 != ~systemActive~0); 44#L793true havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 117#L467-2true __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 77#L675true assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 123#L681-1true [2021-10-21 19:32:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:57,395 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 1 times [2021-10-21 19:32:57,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:57,406 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550813458] [2021-10-21 19:32:57,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:57,407 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:57,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:57,789 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:57,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:58,016 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:58,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:58,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1670509186, now seen corresponding path program 1 times [2021-10-21 19:32:58,035 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:58,035 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126774622] [2021-10-21 19:32:58,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:58,036 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:58,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:58,045 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:58,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:58,063 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:58,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:58,065 INFO L82 PathProgramCache]: Analyzing trace with hash 43769752, now seen corresponding path program 1 times [2021-10-21 19:32:58,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:58,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537822265] [2021-10-21 19:32:58,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:58,066 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:58,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:58,234 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 19:32:58,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:58,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537822265] [2021-10-21 19:32:58,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537822265] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:58,236 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:58,236 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-21 19:32:58,237 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729874875] [2021-10-21 19:32:58,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:58,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-21 19:32:58,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-21 19:32:58,427 INFO L87 Difference]: Start difference. First operand has 140 states, 139 states have (on average 1.5107913669064748) internal successors, (210), 139 states have internal predecessors, (210), 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) [2021-10-21 19:32:58,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:58,735 INFO L93 Difference]: Finished difference Result 330 states and 471 transitions. [2021-10-21 19:32:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-21 19:32:58,737 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 330 states and 471 transitions. [2021-10-21 19:32:58,751 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 213 [2021-10-21 19:32:58,762 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 330 states to 309 states and 450 transitions. [2021-10-21 19:32:58,763 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 309 [2021-10-21 19:32:58,765 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 309 [2021-10-21 19:32:58,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 309 states and 450 transitions. [2021-10-21 19:32:58,769 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:58,770 INFO L681 BuchiCegarLoop]: Abstraction has 309 states and 450 transitions. [2021-10-21 19:32:58,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states and 450 transitions. [2021-10-21 19:32:58,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 180. [2021-10-21 19:32:58,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 180 states have (on average 1.45) internal successors, (261), 179 states have internal predecessors, (261), 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 19:32:58,820 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 261 transitions. [2021-10-21 19:32:58,822 INFO L704 BuchiCegarLoop]: Abstraction has 180 states and 261 transitions. [2021-10-21 19:32:58,822 INFO L587 BuchiCegarLoop]: Abstraction has 180 states and 261 transitions. [2021-10-21 19:32:58,822 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-10-21 19:32:58,822 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 180 states and 261 transitions. [2021-10-21 19:32:58,827 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 124 [2021-10-21 19:32:58,827 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:58,827 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:58,828 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:58,829 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-21 19:32:58,829 INFO L791 eck$LassoCheckResult]: Stem: 619#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 559#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 560#L651 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; 546#L659 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 506#L615 assume 0 != main_~tmp~3; 507#L588 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 592#L681-1 [2021-10-21 19:32:58,829 INFO L793 eck$LassoCheckResult]: Loop: 592#L681-1 assume !false; 609#L721 assume test_~splverifierCounter~0 < 4; 591#L722 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 585#L730 assume !(0 != test_~tmp~5); 545#L730-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 574#L740 assume !(0 != test_~tmp___0~1); 496#L740-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 617#L750 assume 0 != test_~tmp___2~0; 583#L756-1 assume !(0 != ~pumpRunning~0); 522#L786 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 523#L844 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 601#L818-1 assume !(0 == ~pumpRunning~0); 491#L793 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 561#L467-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 595#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 592#L681-1 [2021-10-21 19:32:58,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:58,830 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 2 times [2021-10-21 19:32:58,831 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:58,831 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247688619] [2021-10-21 19:32:58,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:58,831 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:58,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:58,888 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:58,957 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:58,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:58,958 INFO L82 PathProgramCache]: Analyzing trace with hash 1972735879, now seen corresponding path program 1 times [2021-10-21 19:32:58,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:58,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701692786] [2021-10-21 19:32:58,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:58,960 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:58,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:58,978 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 19:32:58,978 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:58,978 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701692786] [2021-10-21 19:32:58,979 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701692786] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:58,979 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:58,979 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:32:58,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520313254] [2021-10-21 19:32:58,980 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-10-21 19:32:58,980 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:58,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-21 19:32:58,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-21 19:32:58,982 INFO L87 Difference]: Start difference. First operand 180 states and 261 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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 19:32:59,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:59,074 INFO L93 Difference]: Finished difference Result 225 states and 310 transitions. [2021-10-21 19:32:59,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-21 19:32:59,075 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 225 states and 310 transitions. [2021-10-21 19:32:59,080 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2021-10-21 19:32:59,084 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 225 states to 225 states and 310 transitions. [2021-10-21 19:32:59,085 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 225 [2021-10-21 19:32:59,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 225 [2021-10-21 19:32:59,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 225 states and 310 transitions. [2021-10-21 19:32:59,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:59,088 INFO L681 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-10-21 19:32:59,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states and 310 transitions. [2021-10-21 19:32:59,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2021-10-21 19:32:59,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 225 states have (on average 1.3777777777777778) internal successors, (310), 224 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) [2021-10-21 19:32:59,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 310 transitions. [2021-10-21 19:32:59,104 INFO L704 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-10-21 19:32:59,104 INFO L587 BuchiCegarLoop]: Abstraction has 225 states and 310 transitions. [2021-10-21 19:32:59,104 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-10-21 19:32:59,105 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 225 states and 310 transitions. [2021-10-21 19:32:59,107 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 158 [2021-10-21 19:32:59,107 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:32:59,108 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:32:59,109 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:32:59,109 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] [2021-10-21 19:32:59,109 INFO L791 eck$LassoCheckResult]: Stem: 1047#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 975#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 976#L651 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; 961#L659 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 917#L615 assume 0 != main_~tmp~3; 918#L588 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 1011#L681-1 [2021-10-21 19:32:59,110 INFO L793 eck$LassoCheckResult]: Loop: 1011#L681-1 assume !false; 1033#L721 assume test_~splverifierCounter~0 < 4; 1010#L722 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 1004#L730 assume !(0 != test_~tmp~5); 960#L730-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 990#L740 assume !(0 != test_~tmp___0~1); 908#L740-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 1043#L750 assume 0 != test_~tmp___2~0; 1026#L756-1 assume !(0 != ~pumpRunning~0); 934#L786 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 935#L844 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 1022#L818-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 942#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 943#L512-1 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 968#L964-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 915#L964-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 916#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret61 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret61;havoc processEnvironment__wrappee__highWaterSensor_#t~ret61; 971#L822-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 900#L793 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 977#L467-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 1014#L675 assume 0 != __utac_acc__Specification3_spec__1_~tmp~4; 1011#L681-1 [2021-10-21 19:32:59,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:59,111 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 3 times [2021-10-21 19:32:59,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:59,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891257434] [2021-10-21 19:32:59,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:59,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:59,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:59,159 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:59,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:59,245 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:59,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:59,246 INFO L82 PathProgramCache]: Analyzing trace with hash -1765215501, now seen corresponding path program 1 times [2021-10-21 19:32:59,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:59,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939701095] [2021-10-21 19:32:59,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:59,247 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:59,259 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:32:59,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:32:59,277 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:32:59,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:32:59,278 INFO L82 PathProgramCache]: Analyzing trace with hash -1309144307, now seen corresponding path program 1 times [2021-10-21 19:32:59,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:32:59,279 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649738453] [2021-10-21 19:32:59,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:32:59,279 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:32:59,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-21 19:32:59,382 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 19:32:59,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-21 19:32:59,383 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649738453] [2021-10-21 19:32:59,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649738453] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-21 19:32:59,383 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-21 19:32:59,383 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-21 19:32:59,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079446214] [2021-10-21 19:32:59,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-21 19:32:59,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-21 19:32:59,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-21 19:32:59,711 INFO L87 Difference]: Start difference. First operand 225 states and 310 transitions. cyclomatic complexity: 88 Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 4 states have internal predecessors, (27), 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 19:32:59,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-21 19:32:59,918 INFO L93 Difference]: Finished difference Result 771 states and 1066 transitions. [2021-10-21 19:32:59,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-21 19:32:59,919 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 771 states and 1066 transitions. [2021-10-21 19:32:59,931 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 575 [2021-10-21 19:32:59,940 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 771 states to 771 states and 1066 transitions. [2021-10-21 19:32:59,941 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 771 [2021-10-21 19:32:59,942 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 771 [2021-10-21 19:32:59,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 771 states and 1066 transitions. [2021-10-21 19:32:59,951 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-21 19:32:59,978 INFO L681 BuchiCegarLoop]: Abstraction has 771 states and 1066 transitions. [2021-10-21 19:32:59,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 771 states and 1066 transitions. [2021-10-21 19:33:00,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 771 to 444. [2021-10-21 19:33:00,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 444 states have (on average 1.3558558558558558) internal successors, (602), 443 states have internal predecessors, (602), 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 19:33:00,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 602 transitions. [2021-10-21 19:33:00,007 INFO L704 BuchiCegarLoop]: Abstraction has 444 states and 602 transitions. [2021-10-21 19:33:00,008 INFO L587 BuchiCegarLoop]: Abstraction has 444 states and 602 transitions. [2021-10-21 19:33:00,008 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-10-21 19:33:00,008 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 444 states and 602 transitions. [2021-10-21 19:33:00,013 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 316 [2021-10-21 19:33:00,013 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-10-21 19:33:00,013 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-10-21 19:33:00,014 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1] [2021-10-21 19:33:00,014 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, 1] [2021-10-21 19:33:00,015 INFO L791 eck$LassoCheckResult]: Stem: 2080#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(31);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);call #t~string25.base, #t~string25.offset := #Ultimate.allocOnStack(30);call #t~string26.base, #t~string26.offset := #Ultimate.allocOnStack(9);call #t~string27.base, #t~string27.offset := #Ultimate.allocOnStack(21);call #t~string28.base, #t~string28.offset := #Ultimate.allocOnStack(30);call #t~string29.base, #t~string29.offset := #Ultimate.allocOnStack(9);call #t~string30.base, #t~string30.offset := #Ultimate.allocOnStack(21);call #t~string34.base, #t~string34.offset := #Ultimate.allocOnStack(30);call #t~string35.base, #t~string35.offset := #Ultimate.allocOnStack(9);call #t~string36.base, #t~string36.offset := #Ultimate.allocOnStack(25);call #t~string37.base, #t~string37.offset := #Ultimate.allocOnStack(30);call #t~string38.base, #t~string38.offset := #Ultimate.allocOnStack(9);call #t~string39.base, #t~string39.offset := #Ultimate.allocOnStack(25);call #t~string43.base, #t~string43.offset := #Ultimate.allocOnStack(13);call #t~string45.base, #t~string45.offset := #Ultimate.allocOnStack(7);call write~init~int(44, #t~string45.base, #t~string45.offset, 1);call write~init~int(77, #t~string45.base, 1 + #t~string45.offset, 1);call write~init~int(101, #t~string45.base, 2 + #t~string45.offset, 1);call write~init~int(116, #t~string45.base, 3 + #t~string45.offset, 1);call write~init~int(104, #t~string45.base, 4 + #t~string45.offset, 1);call write~init~int(58, #t~string45.base, 5 + #t~string45.offset, 1);call write~init~int(0, #t~string45.base, 6 + #t~string45.offset, 1);call #t~string47.base, #t~string47.offset := #Ultimate.allocOnStack(5);call write~init~int(67, #t~string47.base, #t~string47.offset, 1);call write~init~int(82, #t~string47.base, 1 + #t~string47.offset, 1);call write~init~int(73, #t~string47.base, 2 + #t~string47.offset, 1);call write~init~int(84, #t~string47.base, 3 + #t~string47.offset, 1);call write~init~int(0, #t~string47.base, 4 + #t~string47.offset, 1);call #t~string49.base, #t~string49.offset := #Ultimate.allocOnStack(3);call write~init~int(79, #t~string49.base, #t~string49.offset, 1);call write~init~int(75, #t~string49.base, 1 + #t~string49.offset, 1);call write~init~int(0, #t~string49.base, 2 + #t~string49.offset, 1);call #t~string51.base, #t~string51.offset := #Ultimate.allocOnStack(2);call write~init~int(41, #t~string51.base, #t~string51.offset, 1);call write~init~int(0, #t~string51.base, 1 + #t~string51.offset, 1);call #t~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);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1; 1990#L-1 havoc main_#res;havoc main_#t~ret52, main_~retValue_acc~7, main_~tmp~3;havoc main_~retValue_acc~7;havoc main_~tmp~3; 1991#L651 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; 1975#L659 main_#t~ret52 := valid_product_#res;main_~tmp~3 := main_#t~ret52;havoc main_#t~ret52; 1931#L615 assume 0 != main_~tmp~3; 1932#L588 havoc test_#t~nondet57, test_#t~nondet58, test_#t~nondet59, test_#t~nondet60, test_~splverifierCounter~0, test_~tmp~5, test_~tmp___0~1, test_~tmp___1~1, test_~tmp___2~0;havoc test_~splverifierCounter~0;havoc test_~tmp~5;havoc test_~tmp___0~1;havoc test_~tmp___1~1;havoc test_~tmp___2~0;test_~splverifierCounter~0 := 0; 2062#L681-1 [2021-10-21 19:33:00,015 INFO L793 eck$LassoCheckResult]: Loop: 2062#L681-1 assume !false; 2258#L721 assume test_~splverifierCounter~0 < 4; 2259#L722 test_~tmp~5 := test_#t~nondet57;havoc test_#t~nondet57; 2346#L730 assume !(0 != test_~tmp~5); 2344#L730-1 test_~tmp___0~1 := test_#t~nondet58;havoc test_#t~nondet58; 2343#L740 assume !(0 != test_~tmp___0~1); 2341#L740-1 test_~tmp___2~0 := test_#t~nondet59;havoc test_#t~nondet59; 2338#L750 assume 0 != test_~tmp___2~0; 2330#L756-1 assume !(0 != ~pumpRunning~0); 1948#L786 assume 0 != ~systemActive~0;havoc processEnvironment_#t~ret62, processEnvironment_~tmp~7;havoc processEnvironment_~tmp~7; 1949#L844 assume !(0 != ~pumpRunning~0);havoc processEnvironment__wrappee__highWaterSensor_#t~ret61, processEnvironment__wrappee__highWaterSensor_~tmp~6;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6; 2048#L818-1 assume 0 == ~pumpRunning~0;havoc isHighWaterLevel_#res;havoc isHighWaterLevel_#t~ret81, isHighWaterLevel_~retValue_acc~12, isHighWaterLevel_~tmp~9, isHighWaterLevel_~tmp___0~2;havoc isHighWaterLevel_~retValue_acc~12;havoc isHighWaterLevel_~tmp~9;havoc isHighWaterLevel_~tmp___0~2;havoc isHighWaterSensorDry_#res;havoc isHighWaterSensorDry_~retValue_acc~5;havoc isHighWaterSensorDry_~retValue_acc~5; 1956#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5 := 1;isHighWaterSensorDry_#res := isHighWaterSensorDry_~retValue_acc~5; 1957#L512-1 isHighWaterLevel_#t~ret81 := isHighWaterSensorDry_#res;isHighWaterLevel_~tmp~9 := isHighWaterLevel_#t~ret81;havoc isHighWaterLevel_#t~ret81; 1983#L964-3 assume 0 != isHighWaterLevel_~tmp~9;isHighWaterLevel_~tmp___0~2 := 0; 1929#L964-5 isHighWaterLevel_~retValue_acc~12 := isHighWaterLevel_~tmp___0~2;isHighWaterLevel_#res := isHighWaterLevel_~retValue_acc~12; 1930#L970-1 processEnvironment__wrappee__highWaterSensor_#t~ret61 := isHighWaterLevel_#res;processEnvironment__wrappee__highWaterSensor_~tmp~6 := processEnvironment__wrappee__highWaterSensor_#t~ret61;havoc processEnvironment__wrappee__highWaterSensor_#t~ret61; 1986#L822-1 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6); 1914#L793 havoc __utac_acc__Specification3_spec__1_#t~ret54, __utac_acc__Specification3_spec__1_#t~ret55, __utac_acc__Specification3_spec__1_#t~ret56, __utac_acc__Specification3_spec__1_~tmp~4, __utac_acc__Specification3_spec__1_~tmp___0~0, __utac_acc__Specification3_spec__1_~tmp___1~0;havoc __utac_acc__Specification3_spec__1_~tmp~4;havoc __utac_acc__Specification3_spec__1_~tmp___0~0;havoc __utac_acc__Specification3_spec__1_~tmp___1~0;havoc isMethaneLevelCritical_#res;havoc isMethaneLevelCritical_~retValue_acc~3;havoc isMethaneLevelCritical_~retValue_acc~3;isMethaneLevelCritical_~retValue_acc~3 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res := isMethaneLevelCritical_~retValue_acc~3; 2265#L467-2 __utac_acc__Specification3_spec__1_#t~ret54 := isMethaneLevelCritical_#res;__utac_acc__Specification3_spec__1_~tmp~4 := __utac_acc__Specification3_spec__1_#t~ret54;havoc __utac_acc__Specification3_spec__1_#t~ret54; 2264#L675 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4);havoc getWaterLevel_#res;havoc getWaterLevel_~retValue_acc~4;havoc getWaterLevel_~retValue_acc~4;getWaterLevel_~retValue_acc~4 := ~waterLevel~0;getWaterLevel_#res := getWaterLevel_~retValue_acc~4; 2263#L499 __utac_acc__Specification3_spec__1_#t~ret55 := getWaterLevel_#res;__utac_acc__Specification3_spec__1_~tmp___0~0 := __utac_acc__Specification3_spec__1_#t~ret55;havoc __utac_acc__Specification3_spec__1_#t~ret55; 2261#L681 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0); 2062#L681-1 [2021-10-21 19:33:00,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:00,016 INFO L82 PathProgramCache]: Analyzing trace with hash 889506727, now seen corresponding path program 4 times [2021-10-21 19:33:00,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:00,017 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574775593] [2021-10-21 19:33:00,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:00,018 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:00,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,061 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:00,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,110 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:00,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:00,111 INFO L82 PathProgramCache]: Analyzing trace with hash 139994341, now seen corresponding path program 1 times [2021-10-21 19:33:00,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:00,112 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944248341] [2021-10-21 19:33:00,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:00,112 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:00,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,119 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:00,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,129 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:33:00,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-21 19:33:00,130 INFO L82 PathProgramCache]: Analyzing trace with hash 337747583, now seen corresponding path program 1 times [2021-10-21 19:33:00,130 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-21 19:33:00,131 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138952977] [2021-10-21 19:33:00,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-21 19:33:00,131 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-21 19:33:00,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,172 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-21 19:33:00,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-21 19:33:00,229 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-21 19:34:12,379 WARN L207 SmtUtils]: Spent 1.20 m on a formula simplification. DAG size of input: 491 DAG size of output: 433 [2021-10-21 19:35:22,383 WARN L207 SmtUtils]: Spent 32.35 s on a formula simplification that was a NOOP. DAG size: 433 [2021-10-21 19:35:22,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.10 07:35:22 BoogieIcfgContainer [2021-10-21 19:35:22,568 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-10-21 19:35:22,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-21 19:35:22,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-21 19:35:22,569 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-21 19:35:22,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.10 07:32:57" (3/4) ... [2021-10-21 19:35:22,573 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-10-21 19:35:22,641 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/witness.graphml [2021-10-21 19:35:22,643 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-21 19:35:22,644 INFO L168 Benchmark]: Toolchain (without parser) took 147813.84 ms. Allocated memory was 98.6 MB in the beginning and 153.1 MB in the end (delta: 54.5 MB). Free memory was 66.6 MB in the beginning and 41.2 MB in the end (delta: 25.4 MB). Peak memory consumption was 79.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,645 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-21 19:35:22,645 INFO L168 Benchmark]: CACSL2BoogieTranslator took 637.85 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 64.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,646 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.80 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,646 INFO L168 Benchmark]: Boogie Preprocessor took 94.70 ms. Allocated memory is still 98.6 MB. Free memory was 60.1 MB in the beginning and 57.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,647 INFO L168 Benchmark]: RCFGBuilder took 1492.89 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 57.3 MB in the beginning and 61.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,647 INFO L168 Benchmark]: BuchiAutomizer took 145404.24 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 60.8 MB in the beginning and 44.4 MB in the end (delta: 16.4 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,647 INFO L168 Benchmark]: Witness Printer took 74.42 ms. Allocated memory is still 153.1 MB. Free memory was 44.4 MB in the beginning and 41.2 MB in the end (delta: 3.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-21 19:35:22,649 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 98.6 MB. Free memory is still 54.1 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 637.85 ms. Allocated memory is still 98.6 MB. Free memory was 66.3 MB in the beginning and 64.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.80 ms. Allocated memory is still 98.6 MB. Free memory was 64.2 MB in the beginning and 60.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 94.70 ms. Allocated memory is still 98.6 MB. Free memory was 60.1 MB in the beginning and 57.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1492.89 ms. Allocated memory was 98.6 MB in the beginning and 119.5 MB in the end (delta: 21.0 MB). Free memory was 57.3 MB in the beginning and 61.3 MB in the end (delta: -4.0 MB). Peak memory consumption was 20.6 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 145404.24 ms. Allocated memory was 119.5 MB in the beginning and 153.1 MB in the end (delta: 33.6 MB). Free memory was 60.8 MB in the beginning and 44.4 MB in the end (delta: 16.4 MB). Peak memory consumption was 59.5 MB. Max. memory is 16.1 GB. * Witness Printer took 74.42 ms. Allocated memory is still 153.1 MB. Free memory was 44.4 MB in the beginning and 41.2 MB in the end (delta: 3.2 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 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 444 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 145.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 144.2s. Construction of modules took 0.3s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 78.8ms AutomataMinimizationTime, 3 MinimizatonAttempts, 456 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 444 states and ocurred in iteration 3. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 663 SDtfs, 1875 SDslu, 1755 SDs, 0 SdLazy, 175 SolverSat, 63 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 370.7ms Time LassoAnalysisResults: nont1 unkn0 SFLI1 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: 720]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=17962} State at position 1 is {NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e369cdc=0, NULL=17962, NULL=0, methaneLevelCritical=0, NULL=17963, tmp=0, NULL=0, NULL=17988, tmp___1=0, NULL=17980, NULL=0, NULL=17972, NULL=17983, cleanupTimeShifts=4, tmp=0, NULL=17987, NULL=0, waterLevel=1, NULL=0, NULL=0, NULL=0, \result=1, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f7a4c93=0, retValue_acc=1, tmp=1, NULL=17986, NULL=0, NULL=0, NULL=0, NULL=0, \result=1, NULL=0, NULL=0, retValue_acc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20987386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@530d4bb7=0, NULL=0, NULL=0, retValue_acc=1, NULL=17978, tmp___0=0, NULL=17981, tmp=1, NULL=17990, head=0, NULL=0, NULL=0, NULL=17971, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@cd9342f=0, NULL=0, NULL=0, NULL=17968, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c110450=0, NULL=0, retValue_acc=0, NULL=17989, NULL=0, NULL=17965, NULL=17979, tmp___0=0, NULL=0, NULL=17984, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@711cbdaf=0, NULL=0, tmp___0=1, NULL=17970, NULL=17977, NULL=17973, tmp=0, NULL=0, NULL=0, NULL=0, systemActive=1, \result=1, retValue_acc=0, \result=0, NULL=17969, NULL=17967, NULL=17964, \result=0, NULL=17982, NULL=0, NULL=17976, retValue_acc=1, NULL=17975, tmp___2=64, splverifierCounter=0, NULL=0, \result=0, NULL=17985, NULL=17974, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@795bbc08=64, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@70718091=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@122ef3e6=0, tmp___1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e9bfb0e=0, NULL=17966} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 1]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L424] int waterLevel = 1; [L425] int methaneLevelCritical = 0; [L527] int cleanupTimeShifts = 4; [L779] int pumpRunning = 0; [L780] int systemActive = 1; [L606] int retValue_acc ; [L607] int tmp ; [L655] int retValue_acc ; [L658] retValue_acc = 1 [L659] return (retValue_acc); [L613] tmp = valid_product() [L615] COND TRUE \read(tmp) [L711] int splverifierCounter ; [L712] int tmp ; [L713] int tmp___0 ; [L714] int tmp___1 ; [L715] int tmp___2 ; [L718] splverifierCounter = 0 Loop: [L720] COND TRUE 1 [L722] COND TRUE splverifierCounter < 4 [L728] tmp = __VERIFIER_nondet_int() [L730] COND FALSE !(\read(tmp)) [L738] tmp___0 = __VERIFIER_nondet_int() [L740] COND FALSE !(\read(tmp___0)) [L748] tmp___2 = __VERIFIER_nondet_int() [L750] COND TRUE \read(tmp___2) [L786] COND FALSE !(\read(pumpRunning)) [L793] COND TRUE \read(systemActive) [L841] int tmp ; [L844] COND FALSE !(\read(pumpRunning)) [L815] int tmp ; [L818] COND TRUE ! pumpRunning [L956] int retValue_acc ; [L957] int tmp ; [L958] int tmp___0 ; [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L962] tmp = isHighWaterSensorDry() [L964] COND TRUE \read(tmp) [L965] tmp___0 = 0 [L969] retValue_acc = tmp___0 [L970] return (retValue_acc); [L820] tmp = isHighWaterLevel() [L822] COND FALSE !(\read(tmp)) [L667] int tmp ; [L668] int tmp___0 ; [L669] int tmp___1 ; [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L673] tmp = isMethaneLevelCritical() [L675] COND FALSE !(\read(tmp)) [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L679] tmp___0 = getWaterLevel() [L681] COND FALSE !(tmp___0 == 2) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-10-21 19:35:22,735 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c975cc76-e235-4dcf-9c1a-9c36ae639283/bin/uautomizer-j4sWxH34Be/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...