./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version b5237d83 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a --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 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-b5237d8 [2022-11-21 09:04:47,422 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 09:04:47,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 09:04:47,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 09:04:47,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 09:04:47,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 09:04:47,456 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 09:04:47,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 09:04:47,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 09:04:47,462 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 09:04:47,463 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 09:04:47,464 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 09:04:47,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 09:04:47,466 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 09:04:47,468 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 09:04:47,470 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 09:04:47,471 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 09:04:47,472 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 09:04:47,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 09:04:47,477 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 09:04:47,479 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 09:04:47,481 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 09:04:47,483 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 09:04:47,484 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 09:04:47,489 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 09:04:47,489 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 09:04:47,490 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 09:04:47,491 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 09:04:47,492 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 09:04:47,493 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 09:04:47,494 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 09:04:47,495 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 09:04:47,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 09:04:47,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 09:04:47,499 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 09:04:47,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 09:04:47,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 09:04:47,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 09:04:47,502 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 09:04:47,503 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 09:04:47,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 09:04:47,505 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-21 09:04:47,539 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 09:04:47,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 09:04:47,540 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 09:04:47,540 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 09:04:47,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 09:04:47,542 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 09:04:47,542 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 09:04:47,543 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-21 09:04:47,543 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-21 09:04:47,543 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-21 09:04:47,544 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-21 09:04:47,544 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-21 09:04:47,544 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-21 09:04:47,545 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 09:04:47,545 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 09:04:47,545 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 09:04:47,546 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 09:04:47,546 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 09:04:47,546 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 09:04:47,547 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-21 09:04:47,547 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-21 09:04:47,547 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-21 09:04:47,548 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 09:04:47,548 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 09:04:47,548 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-21 09:04:47,549 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 09:04:47,549 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-21 09:04:47,549 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 09:04:47,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 09:04:47,550 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 09:04:47,550 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 09:04:47,552 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-21 09:04:47,552 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_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 637e567dc685efcee308b97525909830094648d3754bb07704f538b9a7ab34e7 [2022-11-21 09:04:47,841 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 09:04:47,869 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 09:04:47,872 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 09:04:47,874 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 09:04:47,875 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 09:04:47,876 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2022-11-21 09:04:51,875 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 09:04:52,194 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 09:04:52,195 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c [2022-11-21 09:04:52,209 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/data/ccb0baa65/35b29ca939c74ff5a3af524c93e0dcb6/FLAGc2c860436 [2022-11-21 09:04:52,227 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/data/ccb0baa65/35b29ca939c74ff5a3af524c93e0dcb6 [2022-11-21 09:04:52,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 09:04:52,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 09:04:52,234 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:52,234 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 09:04:52,246 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 09:04:52,247 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,249 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@278c2b9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52, skipping insertion in model container [2022-11-21 09:04:52,249 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,261 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 09:04:52,344 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 09:04:52,527 WARN L237 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_83969fc9-66a3-4808-a30c-2b920a30b75b/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618] [2022-11-21 09:04:52,666 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:52,683 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 09:04:52,702 WARN L237 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_83969fc9-66a3-4808-a30c-2b920a30b75b/sv-benchmarks/c/product-lines/minepump_spec3_product47.cil.c[1605,1618] [2022-11-21 09:04:52,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 09:04:52,826 INFO L208 MainTranslator]: Completed translation [2022-11-21 09:04:52,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52 WrapperNode [2022-11-21 09:04:52,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 09:04:52,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:52,837 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 09:04:52,837 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 09:04:52,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,880 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,949 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 100, statements flattened = 691 [2022-11-21 09:04:52,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 09:04:52,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 09:04:52,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 09:04:52,957 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 09:04:52,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,977 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:52,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,002 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,020 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,022 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,045 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 09:04:53,047 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 09:04:53,047 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 09:04:53,047 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 09:04:53,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (1/1) ... [2022-11-21 09:04:53,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-21 09:04:53,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 09:04:53,120 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-21 09:04:53,139 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-21 09:04:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 09:04:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 09:04:53,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 09:04:53,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 09:04:53,285 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 09:04:53,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 09:04:54,013 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 09:04:54,024 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 09:04:54,024 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-21 09:04:54,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:54 BoogieIcfgContainer [2022-11-21 09:04:54,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 09:04:54,029 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-21 09:04:54,029 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-21 09:04:54,034 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-21 09:04:54,035 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:54,036 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 21.11 09:04:52" (1/3) ... [2022-11-21 09:04:54,037 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76c88246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:04:54, skipping insertion in model container [2022-11-21 09:04:54,037 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:54,037 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 09:04:52" (2/3) ... [2022-11-21 09:04:54,038 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@76c88246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 21.11 09:04:54, skipping insertion in model container [2022-11-21 09:04:54,038 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-21 09:04:54,038 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:54" (3/3) ... [2022-11-21 09:04:54,040 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2022-11-21 09:04:54,128 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-21 09:04:54,128 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-21 09:04:54,129 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-21 09:04:54,129 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-21 09:04:54,129 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-21 09:04:54,129 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-21 09:04:54,130 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-21 09:04:54,130 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-21 09:04:54,138 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 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) [2022-11-21 09:04:54,183 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-11-21 09:04:54,183 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:54,184 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:54,193 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:54,193 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:54,194 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-21 09:04:54,195 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 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) [2022-11-21 09:04:54,204 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2022-11-21 09:04:54,204 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:54,204 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:54,206 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:54,206 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:54,213 INFO L748 eck$LassoCheckResult]: Stem: 170#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 57#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 135#L185true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 39#L178true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 81#L193true main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 127#L149true assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 70#L122true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 20#L575-2true [2022-11-21 09:04:54,214 INFO L750 eck$LassoCheckResult]: Loop: 20#L575-2true assume !false; 123#L576true assume test_~splverifierCounter~0#1 < 4; 92#L577true test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 104#L585true assume !(0 != test_~tmp~4#1); 59#L585-2true test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 187#L595true assume !(0 != test_~tmp___0~0#1); 79#L595-2true test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 86#L605true assume 0 != test_~tmp___2~0#1; 130#L611-2true assume { :begin_inline_timeShift } true; 178#L647true assume !(0 != ~pumpRunning~0); 134#L647-2true assume !(0 != ~systemActive~0); 58#L654-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 156#L894-3true __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 183#L954true assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 15#L960-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 53#L664true assume { :end_inline_timeShift } true; 20#L575-2true [2022-11-21 09:04:54,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:54,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2022-11-21 09:04:54,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:54,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269090995] [2022-11-21 09:04:54,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:54,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:54,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:54,410 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:54,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:54,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:54,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:54,476 INFO L85 PathProgramCache]: Analyzing trace with hash 879795478, now seen corresponding path program 1 times [2022-11-21 09:04:54,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:54,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83797592] [2022-11-21 09:04:54,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:54,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:54,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:54,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:54,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:54,501 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:54,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:54,504 INFO L85 PathProgramCache]: Analyzing trace with hash -2059752742, now seen corresponding path program 1 times [2022-11-21 09:04:54,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:54,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921383472] [2022-11-21 09:04:54,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:54,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:54,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:54,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:54,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:54,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921383472] [2022-11-21 09:04:54,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921383472] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:54,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:54,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 09:04:54,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610720531] [2022-11-21 09:04:54,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:55,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:55,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 09:04:55,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-21 09:04:55,104 INFO L87 Difference]: Start difference. First operand has 190 states, 189 states have (on average 1.3597883597883598) internal successors, (257), 189 states have internal predecessors, (257), 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 3.8333333333333335) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 09:04:55,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:55,495 INFO L93 Difference]: Finished difference Result 437 states and 572 transitions. [2022-11-21 09:04:55,497 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 437 states and 572 transitions. [2022-11-21 09:04:55,521 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 283 [2022-11-21 09:04:55,532 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 437 states to 407 states and 542 transitions. [2022-11-21 09:04:55,543 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 407 [2022-11-21 09:04:55,546 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 407 [2022-11-21 09:04:55,555 INFO L73 IsDeterministic]: Start isDeterministic. Operand 407 states and 542 transitions. [2022-11-21 09:04:55,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:55,558 INFO L218 hiAutomatonCegarLoop]: Abstraction has 407 states and 542 transitions. [2022-11-21 09:04:55,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states and 542 transitions. [2022-11-21 09:04:55,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 235. [2022-11-21 09:04:55,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 235 states have (on average 1.3319148936170213) internal successors, (313), 234 states have internal predecessors, (313), 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) [2022-11-21 09:04:55,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 313 transitions. [2022-11-21 09:04:55,648 INFO L240 hiAutomatonCegarLoop]: Abstraction has 235 states and 313 transitions. [2022-11-21 09:04:55,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 09:04:55,661 INFO L428 stractBuchiCegarLoop]: Abstraction has 235 states and 313 transitions. [2022-11-21 09:04:55,662 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-21 09:04:55,662 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 235 states and 313 transitions. [2022-11-21 09:04:55,669 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 164 [2022-11-21 09:04:55,669 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:55,670 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:55,671 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:55,671 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:55,671 INFO L748 eck$LassoCheckResult]: Stem: 820#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 734#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 735#L185 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 709#L178 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 710#L193 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 764#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 752#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 679#L575-2 [2022-11-21 09:04:55,671 INFO L750 eck$LassoCheckResult]: Loop: 679#L575-2 assume !false; 680#L576 assume test_~splverifierCounter~0#1 < 4; 774#L577 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 775#L585 assume !(0 != test_~tmp~4#1); 690#L585-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 738#L595 assume !(0 != test_~tmp___0~0#1); 646#L595-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 758#L605 assume 0 != test_~tmp___2~0#1; 744#L611-2 assume { :begin_inline_timeShift } true; 802#L647 assume !(0 != ~pumpRunning~0); 781#L647-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 807#L705 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret33#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 741#L679-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 687#L671-3 assume { :end_inline_processEnvironment__wrappee__base } true; 688#L679-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 699#L705-1 assume { :end_inline_processEnvironment } true; 736#L654-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 737#L894-3 __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 818#L954 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 660#L960-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 670#L664 assume { :end_inline_timeShift } true; 679#L575-2 [2022-11-21 09:04:55,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:55,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2022-11-21 09:04:55,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:55,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875374776] [2022-11-21 09:04:55,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:55,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:55,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:55,699 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:55,724 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:55,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:55,725 INFO L85 PathProgramCache]: Analyzing trace with hash 826102028, now seen corresponding path program 1 times [2022-11-21 09:04:55,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:55,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722082418] [2022-11-21 09:04:55,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:55,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:55,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:55,796 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:55,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:55,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722082418] [2022-11-21 09:04:55,797 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722082418] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:55,798 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:55,798 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 09:04:55,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897911502] [2022-11-21 09:04:55,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:55,801 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-21 09:04:55,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:55,801 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 09:04:55,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 09:04:55,802 INFO L87 Difference]: Start difference. First operand 235 states and 313 transitions. cyclomatic complexity: 81 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-21 09:04:55,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:55,959 INFO L93 Difference]: Finished difference Result 297 states and 379 transitions. [2022-11-21 09:04:55,959 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 297 states and 379 transitions. [2022-11-21 09:04:55,970 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-11-21 09:04:55,974 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 297 states to 297 states and 379 transitions. [2022-11-21 09:04:55,974 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 297 [2022-11-21 09:04:55,975 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 297 [2022-11-21 09:04:55,975 INFO L73 IsDeterministic]: Start isDeterministic. Operand 297 states and 379 transitions. [2022-11-21 09:04:55,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:55,977 INFO L218 hiAutomatonCegarLoop]: Abstraction has 297 states and 379 transitions. [2022-11-21 09:04:55,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states and 379 transitions. [2022-11-21 09:04:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 297. [2022-11-21 09:04:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297 states, 297 states have (on average 1.2760942760942762) internal successors, (379), 296 states have internal predecessors, (379), 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) [2022-11-21 09:04:56,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297 states to 297 states and 379 transitions. [2022-11-21 09:04:56,017 INFO L240 hiAutomatonCegarLoop]: Abstraction has 297 states and 379 transitions. [2022-11-21 09:04:56,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 09:04:56,019 INFO L428 stractBuchiCegarLoop]: Abstraction has 297 states and 379 transitions. [2022-11-21 09:04:56,019 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-21 09:04:56,019 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 297 states and 379 transitions. [2022-11-21 09:04:56,022 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 211 [2022-11-21 09:04:56,026 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:56,026 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:56,027 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:56,030 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1] [2022-11-21 09:04:56,031 INFO L748 eck$LassoCheckResult]: Stem: 1377#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 1274#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 1275#L185 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1249#L178 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 1250#L193 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 1306#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 1294#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1269#L575-2 [2022-11-21 09:04:56,031 INFO L750 eck$LassoCheckResult]: Loop: 1269#L575-2 assume !false; 1451#L576 assume test_~splverifierCounter~0#1 < 4; 1450#L577 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1330#L585 assume !(0 != test_~tmp~4#1); 1225#L585-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1446#L595 assume !(0 != test_~tmp___0~0#1); 1444#L595-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 1443#L605 assume 0 != test_~tmp___2~0#1; 1351#L611-2 assume { :begin_inline_timeShift } true; 1352#L647 assume !(0 != ~pumpRunning~0); 1358#L647-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 1359#L705 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret33#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 1282#L679-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret45#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 1283#L934-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 1230#L939-1 isHighWaterLevel_#t~ret45#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret45#1;havoc isHighWaterLevel_#t~ret45#1; 1231#L824-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1232#L824-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 1233#L830-1 processEnvironment__wrappee__methaneQuery_#t~ret33#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret33#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret33#1; 1379#L683-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1234#L671-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1235#L679-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 1236#L705-1 assume { :end_inline_processEnvironment } true; 1308#L654-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 1456#L894-3 __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 1453#L954 assume 0 != __utac_acc__Specification3_spec__1_~tmp~9#1; 1452#L960-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1268#L664 assume { :end_inline_timeShift } true; 1269#L575-2 [2022-11-21 09:04:56,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2022-11-21 09:04:56,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:56,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703283376] [2022-11-21 09:04:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:56,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:56,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:56,065 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:56,089 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:56,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:56,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1851559100, now seen corresponding path program 1 times [2022-11-21 09:04:56,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:56,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723883671] [2022-11-21 09:04:56,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:56,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:56,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:56,131 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:56,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:56,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:56,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1476271360, now seen corresponding path program 1 times [2022-11-21 09:04:56,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:56,146 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272148344] [2022-11-21 09:04:56,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:56,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 09:04:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 09:04:56,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 09:04:56,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272148344] [2022-11-21 09:04:56,372 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272148344] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 09:04:56,372 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 09:04:56,372 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 09:04:56,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393447571] [2022-11-21 09:04:56,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 09:04:56,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 09:04:56,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 09:04:56,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 09:04:56,712 INFO L87 Difference]: Start difference. First operand 297 states and 379 transitions. cyclomatic complexity: 85 Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 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) [2022-11-21 09:04:57,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 09:04:57,025 INFO L93 Difference]: Finished difference Result 1015 states and 1288 transitions. [2022-11-21 09:04:57,026 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1015 states and 1288 transitions. [2022-11-21 09:04:57,036 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 753 [2022-11-21 09:04:57,044 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1015 states to 1015 states and 1288 transitions. [2022-11-21 09:04:57,044 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1015 [2022-11-21 09:04:57,046 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1015 [2022-11-21 09:04:57,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1015 states and 1288 transitions. [2022-11-21 09:04:57,053 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-21 09:04:57,053 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1015 states and 1288 transitions. [2022-11-21 09:04:57,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states and 1288 transitions. [2022-11-21 09:04:57,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 587. [2022-11-21 09:04:57,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 587 states have (on average 1.2589437819420783) internal successors, (739), 586 states have internal predecessors, (739), 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) [2022-11-21 09:04:57,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 739 transitions. [2022-11-21 09:04:57,108 INFO L240 hiAutomatonCegarLoop]: Abstraction has 587 states and 739 transitions. [2022-11-21 09:04:57,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-21 09:04:57,111 INFO L428 stractBuchiCegarLoop]: Abstraction has 587 states and 739 transitions. [2022-11-21 09:04:57,111 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-21 09:04:57,112 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 587 states and 739 transitions. [2022-11-21 09:04:57,116 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 422 [2022-11-21 09:04:57,117 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-21 09:04:57,117 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-21 09:04:57,120 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:57,121 INFO L149 hiAutomatonCegarLoop]: 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, 1, 1, 1, 1, 1, 1] [2022-11-21 09:04:57,121 INFO L748 eck$LassoCheckResult]: Stem: 2723#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0; 2604#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret4#1, main_~retValue_acc~0#1, main_~tmp~0#1;havoc main_~retValue_acc~0#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true; 2605#L185 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2580#L178 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~2#1;havoc valid_product_~retValue_acc~2#1;valid_product_~retValue_acc~2#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~2#1; 2581#L193 main_#t~ret4#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret4#1;havoc main_#t~ret4#1; 2640#L149 assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true; 2625#L122 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2626#L575-2 [2022-11-21 09:04:57,121 INFO L750 eck$LassoCheckResult]: Loop: 2626#L575-2 assume !false; 3027#L576 assume test_~splverifierCounter~0#1 < 4; 3028#L577 test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 3074#L585 assume !(0 != test_~tmp~4#1); 3070#L585-2 test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 3060#L595 assume !(0 != test_~tmp___0~0#1); 3058#L595-2 test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1; 3056#L605 assume 0 != test_~tmp___2~0#1; 3044#L611-2 assume { :begin_inline_timeShift } true; 3042#L647 assume !(0 != ~pumpRunning~0); 2694#L647-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret34#1, processEnvironment_~tmp~6#1;havoc processEnvironment_~tmp~6#1; 2695#L705 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret33#1, processEnvironment__wrappee__methaneQuery_~tmp~5#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~5#1; 2611#L679-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret45#1, isHighWaterLevel_~retValue_acc~8#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~8#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~11#1;havoc isHighWaterSensorDry_~retValue_acc~11#1; 2612#L934-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~11#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~11#1; 2562#L939-1 isHighWaterLevel_#t~ret45#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret45#1;havoc isHighWaterLevel_#t~ret45#1; 2563#L824-3 assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2560#L824-5 isHighWaterLevel_~retValue_acc~8#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~8#1; 2561#L830-1 processEnvironment__wrappee__methaneQuery_#t~ret33#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__methaneQuery_~tmp~5#1 := processEnvironment__wrappee__methaneQuery_#t~ret33#1;havoc processEnvironment__wrappee__methaneQuery_#t~ret33#1; 2730#L683-3 assume !(0 != processEnvironment__wrappee__methaneQuery_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2564#L671-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2565#L679-3 assume { :end_inline_processEnvironment__wrappee__methaneQuery } true; 2566#L705-1 assume { :end_inline_processEnvironment } true; 2641#L654-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret51#1, __utac_acc__Specification3_spec__1_#t~ret52#1, __utac_acc__Specification3_spec__1_#t~ret53#1, __utac_acc__Specification3_spec__1_~tmp~9#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~9#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;havoc isMethaneLevelCritical_~retValue_acc~9#1;isMethaneLevelCritical_~retValue_acc~9#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~9#1; 3036#L894-3 __utac_acc__Specification3_spec__1_#t~ret51#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~9#1 := __utac_acc__Specification3_spec__1_#t~ret51#1;havoc __utac_acc__Specification3_spec__1_#t~ret51#1; 3035#L954 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~9#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 3034#L926 __utac_acc__Specification3_spec__1_#t~ret52#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret52#1;havoc __utac_acc__Specification3_spec__1_#t~ret52#1; 3031#L960 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1); 3030#L960-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 3029#L664 assume { :end_inline_timeShift } true; 2626#L575-2 [2022-11-21 09:04:57,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:57,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2022-11-21 09:04:57,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:57,125 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462657731] [2022-11-21 09:04:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:57,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:57,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,162 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:57,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,183 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:57,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:57,184 INFO L85 PathProgramCache]: Analyzing trace with hash -1230580169, now seen corresponding path program 1 times [2022-11-21 09:04:57,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:57,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433059436] [2022-11-21 09:04:57,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:57,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:57,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,203 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:57,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,213 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:57,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 09:04:57,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1356314893, now seen corresponding path program 1 times [2022-11-21 09:04:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 09:04:57,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802608934] [2022-11-21 09:04:57,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 09:04:57,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 09:04:57,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,228 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:57,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:57,243 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 09:04:58,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:58,877 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 09:04:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 09:04:58,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 21.11 09:04:58 BoogieIcfgContainer [2022-11-21 09:04:58,985 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-21 09:04:58,985 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 09:04:58,986 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 09:04:58,986 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 09:04:58,987 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 09:04:54" (3/4) ... [2022-11-21 09:04:58,991 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-21 09:04:59,085 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/witness.graphml [2022-11-21 09:04:59,085 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 09:04:59,086 INFO L158 Benchmark]: Toolchain (without parser) took 6853.93ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 127.8MB in the beginning and 89.2MB in the end (delta: 38.5MB). Peak memory consumption was 74.2MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,087 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 09:04:59,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.41ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 108.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,088 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.67ms. Allocated memory is still 163.6MB. Free memory was 108.9MB in the beginning and 105.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,088 INFO L158 Benchmark]: Boogie Preprocessor took 89.64ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 103.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,089 INFO L158 Benchmark]: RCFGBuilder took 981.56ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 122.1MB in the end (delta: -19.5MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,089 INFO L158 Benchmark]: BuchiAutomizer took 4955.67ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 122.1MB in the beginning and 92.3MB in the end (delta: 29.8MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,090 INFO L158 Benchmark]: Witness Printer took 100.26ms. Allocated memory is still 197.1MB. Free memory was 92.3MB in the beginning and 89.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 09:04:59,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 109.1MB. Free memory is still 56.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.41ms. Allocated memory is still 163.6MB. Free memory was 127.3MB in the beginning and 108.9MB in the end (delta: 18.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.67ms. Allocated memory is still 163.6MB. Free memory was 108.9MB in the beginning and 105.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 89.64ms. Allocated memory is still 163.6MB. Free memory was 105.5MB in the beginning and 103.0MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 981.56ms. Allocated memory is still 163.6MB. Free memory was 102.6MB in the beginning and 122.1MB in the end (delta: -19.5MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 4955.67ms. Allocated memory was 163.6MB in the beginning and 197.1MB in the end (delta: 33.6MB). Free memory was 122.1MB in the beginning and 92.3MB in the end (delta: 29.8MB). Peak memory consumption was 63.2MB. Max. memory is 16.1GB. * Witness Printer took 100.26ms. Allocated memory is still 197.1MB. Free memory was 92.3MB in the beginning and 89.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * 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 587 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.8s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.4s. Construction of modules took 0.3s. Büchi inclusion checks took 0.8s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.2s AutomataMinimizationTime, 3 MinimizatonAttempts, 600 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2017 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2017 mSDsluCounter, 3053 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2227 mSDsCounter, 54 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 212 IncrementalHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 54 mSolverCounterUnsat, 826 mSDtfsCounter, 212 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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 InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 575]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L59] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int pumpRunning = 0; [L640] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L189] int retValue_acc ; [L192] retValue_acc = 1 [L193] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L620] CALL timeShift() [L647] COND FALSE !(\read(pumpRunning)) [L654] COND TRUE \read(systemActive) [L656] CALL processEnvironment() [L702] int tmp ; [L705] COND FALSE !(\read(pumpRunning)) [L720] CALL processEnvironment__wrappee__methaneQuery() [L676] int tmp ; [L679] COND TRUE ! pumpRunning [L681] CALL, EXPR isHighWaterLevel() [L816] int retValue_acc ; [L817] int tmp ; [L818] int tmp___0 ; [L822] CALL, EXPR isHighWaterSensorDry() [L931] int retValue_acc ; [L934] COND TRUE waterLevel < 2 [L935] retValue_acc = 1 [L936] return (retValue_acc); [L822] RET, EXPR isHighWaterSensorDry() [L822] tmp = isHighWaterSensorDry() [L824] COND TRUE \read(tmp) [L825] tmp___0 = 0 [L829] retValue_acc = tmp___0 [L830] return (retValue_acc); [L681] RET, EXPR isHighWaterLevel() [L681] tmp = isHighWaterLevel() [L683] COND FALSE !(\read(tmp)) [L689] FCALL processEnvironment__wrappee__base() [L720] RET processEnvironment__wrappee__methaneQuery() [L656] RET processEnvironment() [L662] CALL __utac_acc__Specification3_spec__1() [L946] int tmp ; [L947] int tmp___0 ; [L948] int tmp___1 ; [L952] CALL, EXPR isMethaneLevelCritical() [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); [L952] RET, EXPR isMethaneLevelCritical() [L952] tmp = isMethaneLevelCritical() [L954] COND FALSE !(\read(tmp)) [L958] CALL, EXPR getWaterLevel() [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); [L958] RET, EXPR getWaterLevel() [L958] tmp___0 = getWaterLevel() [L960] COND FALSE !(tmp___0 == 2) [L662] RET __utac_acc__Specification3_spec__1() [L620] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 575]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L59] int cleanupTimeShifts = 4; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L639] int pumpRunning = 0; [L640] int systemActive = 1; [L851] int waterLevel = 1; [L852] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L140] int retValue_acc ; [L141] int tmp ; [L145] FCALL select_helpers() [L146] FCALL select_features() [L147] CALL, EXPR valid_product() [L189] int retValue_acc ; [L192] retValue_acc = 1 [L193] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L147] RET, EXPR valid_product() [L147] tmp = valid_product() [L149] COND TRUE \read(tmp) [L151] FCALL setup() [L152] CALL runTest() [L131] CALL test() [L566] int splverifierCounter ; [L567] int tmp ; [L568] int tmp___0 ; [L569] int tmp___1 ; [L570] int tmp___2 ; [L573] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L575] COND TRUE 1 [L577] COND TRUE splverifierCounter < 4 [L583] tmp = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp)) [L593] tmp___0 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___0)) [L603] tmp___2 = __VERIFIER_nondet_int() [L605] COND TRUE \read(tmp___2) [L620] CALL timeShift() [L647] COND FALSE !(\read(pumpRunning)) [L654] COND TRUE \read(systemActive) [L656] CALL processEnvironment() [L702] int tmp ; [L705] COND FALSE !(\read(pumpRunning)) [L720] CALL processEnvironment__wrappee__methaneQuery() [L676] int tmp ; [L679] COND TRUE ! pumpRunning [L681] CALL, EXPR isHighWaterLevel() [L816] int retValue_acc ; [L817] int tmp ; [L818] int tmp___0 ; [L822] CALL, EXPR isHighWaterSensorDry() [L931] int retValue_acc ; [L934] COND TRUE waterLevel < 2 [L935] retValue_acc = 1 [L936] return (retValue_acc); [L822] RET, EXPR isHighWaterSensorDry() [L822] tmp = isHighWaterSensorDry() [L824] COND TRUE \read(tmp) [L825] tmp___0 = 0 [L829] retValue_acc = tmp___0 [L830] return (retValue_acc); [L681] RET, EXPR isHighWaterLevel() [L681] tmp = isHighWaterLevel() [L683] COND FALSE !(\read(tmp)) [L689] FCALL processEnvironment__wrappee__base() [L720] RET processEnvironment__wrappee__methaneQuery() [L656] RET processEnvironment() [L662] CALL __utac_acc__Specification3_spec__1() [L946] int tmp ; [L947] int tmp___0 ; [L948] int tmp___1 ; [L952] CALL, EXPR isMethaneLevelCritical() [L890] int retValue_acc ; [L893] retValue_acc = methaneLevelCritical [L894] return (retValue_acc); [L952] RET, EXPR isMethaneLevelCritical() [L952] tmp = isMethaneLevelCritical() [L954] COND FALSE !(\read(tmp)) [L958] CALL, EXPR getWaterLevel() [L922] int retValue_acc ; [L925] retValue_acc = waterLevel [L926] return (retValue_acc); [L958] RET, EXPR getWaterLevel() [L958] tmp___0 = getWaterLevel() [L960] COND FALSE !(tmp___0 == 2) [L662] RET __utac_acc__Specification3_spec__1() [L620] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-21 09:04:59,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83969fc9-66a3-4808-a30c-2b920a30b75b/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)