./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 53f42b1a Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF --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 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-53f42b1 [2021-11-20 05:59:06,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-20 05:59:06,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-20 05:59:06,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-20 05:59:06,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-20 05:59:06,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-20 05:59:06,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-20 05:59:06,910 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-20 05:59:06,913 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-20 05:59:06,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-20 05:59:06,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-20 05:59:06,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-20 05:59:06,919 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-20 05:59:06,921 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-20 05:59:06,923 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-20 05:59:06,925 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-20 05:59:06,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-20 05:59:06,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-20 05:59:06,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-20 05:59:06,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-20 05:59:06,949 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-20 05:59:06,959 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-20 05:59:06,961 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-20 05:59:06,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-20 05:59:06,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-20 05:59:06,973 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-20 05:59:06,973 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-20 05:59:06,975 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-20 05:59:06,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-20 05:59:06,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-20 05:59:06,980 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-20 05:59:06,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-20 05:59:06,984 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-20 05:59:06,986 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-20 05:59:06,988 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-20 05:59:06,989 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-20 05:59:06,990 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-20 05:59:06,990 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-20 05:59:06,990 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-20 05:59:06,992 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-20 05:59:06,993 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-20 05:59:06,994 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-11-20 05:59:07,043 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-20 05:59:07,043 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-20 05:59:07,044 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-20 05:59:07,044 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-20 05:59:07,046 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-20 05:59:07,046 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-20 05:59:07,046 INFO L138 SettingsManager]: * Use SBE=true [2021-11-20 05:59:07,047 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-11-20 05:59:07,047 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-11-20 05:59:07,047 INFO L138 SettingsManager]: * Use old map elimination=false [2021-11-20 05:59:07,047 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-11-20 05:59:07,048 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-11-20 05:59:07,048 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-11-20 05:59:07,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-20 05:59:07,049 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-20 05:59:07,049 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-11-20 05:59:07,049 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-20 05:59:07,049 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-20 05:59:07,050 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-20 05:59:07,050 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-11-20 05:59:07,050 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-11-20 05:59:07,051 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-11-20 05:59:07,051 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-20 05:59:07,051 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-20 05:59:07,051 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-11-20 05:59:07,052 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-20 05:59:07,052 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-11-20 05:59:07,052 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-20 05:59:07,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-20 05:59:07,053 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-20 05:59:07,053 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-20 05:59:07,054 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-20 05:59:07,055 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-11-20 05:59:07,055 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_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3cfb2febd3006e73b0e8309478193e665e2e7ddd381dfad7d5652117e74962c4 [2021-11-20 05:59:07,411 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-20 05:59:07,445 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-20 05:59:07,449 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-20 05:59:07,450 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-20 05:59:07,452 INFO L275 PluginConnector]: CDTParser initialized [2021-11-20 05:59:07,454 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/../../sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2021-11-20 05:59:07,551 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/data/737f7a27f/1bffbce83036410a9949963a2f7247e0/FLAG6dafdb262 [2021-11-20 05:59:08,237 INFO L306 CDTParser]: Found 1 translation units. [2021-11-20 05:59:08,240 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c [2021-11-20 05:59:08,260 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/data/737f7a27f/1bffbce83036410a9949963a2f7247e0/FLAG6dafdb262 [2021-11-20 05:59:08,472 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/data/737f7a27f/1bffbce83036410a9949963a2f7247e0 [2021-11-20 05:59:08,479 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-20 05:59:08,481 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-20 05:59:08,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-20 05:59:08,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-20 05:59:08,488 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-20 05:59:08,489 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:59:08" (1/1) ... [2021-11-20 05:59:08,491 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f0ea997 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:08, skipping insertion in model container [2021-11-20 05:59:08,491 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:59:08" (1/1) ... [2021-11-20 05:59:08,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-20 05:59:08,570 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-20 05:59:08,909 WARN L230 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_c178d48a-337a-45ad-a297-10768b1ac36d/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2021-11-20 05:59:08,944 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:59:08,956 INFO L203 MainTranslator]: Completed pre-run [2021-11-20 05:59:09,053 WARN L230 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_c178d48a-337a-45ad-a297-10768b1ac36d/sv-benchmarks/c/product-lines/minepump_spec3_product57.cil.c[13989,14002] [2021-11-20 05:59:09,071 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-20 05:59:09,094 INFO L208 MainTranslator]: Completed translation [2021-11-20 05:59:09,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09 WrapperNode [2021-11-20 05:59:09,095 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-20 05:59:09,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-20 05:59:09,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-20 05:59:09,097 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-20 05:59:09,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,131 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,188 INFO L137 Inliner]: procedures = 56, calls = 157, calls flagged for inlining = 54, calls inlined = 98, statements flattened = 758 [2021-11-20 05:59:09,188 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-20 05:59:09,189 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-20 05:59:09,189 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-20 05:59:09,190 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-20 05:59:09,199 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,245 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-20 05:59:09,246 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-20 05:59:09,246 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-20 05:59:09,246 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-20 05:59:09,248 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (1/1) ... [2021-11-20 05:59:09,283 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-11-20 05:59:09,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/z3 [2021-11-20 05:59:09,337 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-11-20 05:59:09,365 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-11-20 05:59:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-20 05:59:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-20 05:59:09,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-20 05:59:09,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-20 05:59:09,534 INFO L236 CfgBuilder]: Building ICFG [2021-11-20 05:59:09,536 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-20 05:59:10,167 INFO L277 CfgBuilder]: Performing block encoding [2021-11-20 05:59:10,178 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-20 05:59:10,179 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-11-20 05:59:10,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:59:10 BoogieIcfgContainer [2021-11-20 05:59:10,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-20 05:59:10,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-11-20 05:59:10,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-11-20 05:59:10,187 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-11-20 05:59:10,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:59:10,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 20.11 05:59:08" (1/3) ... [2021-11-20 05:59:10,190 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6919c6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:59:10, skipping insertion in model container [2021-11-20 05:59:10,191 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:59:10,191 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:59:09" (2/3) ... [2021-11-20 05:59:10,191 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6919c6ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 20.11 05:59:10, skipping insertion in model container [2021-11-20 05:59:10,192 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-11-20 05:59:10,192 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:59:10" (3/3) ... [2021-11-20 05:59:10,193 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product57.cil.c [2021-11-20 05:59:10,247 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-11-20 05:59:10,247 INFO L360 BuchiCegarLoop]: Hoare is false [2021-11-20 05:59:10,248 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-11-20 05:59:10,248 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-11-20 05:59:10,248 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-11-20 05:59:10,248 INFO L364 BuchiCegarLoop]: Difference is false [2021-11-20 05:59:10,249 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-11-20 05:59:10,249 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-11-20 05:59:10,275 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 191 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) [2021-11-20 05:59:10,312 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2021-11-20 05:59:10,312 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:10,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:10,322 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:10,322 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:10,322 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-11-20 05:59:10,324 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 192 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 191 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) [2021-11-20 05:59:10,338 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 124 [2021-11-20 05:59:10,339 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:10,339 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:10,340 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:10,340 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:10,346 INFO L791 eck$LassoCheckResult]: Stem: 166#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 63#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 66#L552true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 30#L545true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 31#L560true main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 145#L977true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 184#L954true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 96#L840-2true [2021-11-20 05:59:10,347 INFO L793 eck$LassoCheckResult]: Loop: 96#L840-2true assume !false; 109#L841true assume test_~splverifierCounter~0#1 < 4; 80#L842true test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 171#L850true assume !(0 != test_~tmp~9#1); 189#L850-2true test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 152#L860true assume !(0 != test_~tmp___0~3#1); 128#L860-2true test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 116#L870true assume 0 != test_~tmp___2~0#1; 123#L876-2true assume { :begin_inline_timeShift } true; 92#L621true assume !(0 != ~pumpRunning~0); 46#L621-2true assume !(0 != ~systemActive~0); 124#L628-1true assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret33#1, __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 147#L467-2true __utac_acc__Specification3_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret33#1;havoc __utac_acc__Specification3_spec__1_#t~ret33#1; 125#L576true assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 54#L582-1true assume { :end_inline___utac_acc__Specification3_spec__1 } true; 143#L638true assume { :end_inline_timeShift } true; 96#L840-2true [2021-11-20 05:59:10,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:10,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-11-20 05:59:10,387 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:10,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271716450] [2021-11-20 05:59:10,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:10,390 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:10,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:10,543 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:10,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:10,674 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:10,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:10,678 INFO L85 PathProgramCache]: Analyzing trace with hash 1892778550, now seen corresponding path program 1 times [2021-11-20 05:59:10,679 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:10,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361445577] [2021-11-20 05:59:10,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:10,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:10,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:10,708 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:10,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:10,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:10,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:10,746 INFO L85 PathProgramCache]: Analyzing trace with hash -1046769670, now seen corresponding path program 1 times [2021-11-20 05:59:10,747 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:10,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075134687] [2021-11-20 05:59:10,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:10,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:10,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:59:10,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:59:10,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:59:10,955 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075134687] [2021-11-20 05:59:10,956 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075134687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:59:10,956 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:59:10,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-20 05:59:10,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649975592] [2021-11-20 05:59:10,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:59:11,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:59:11,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-20 05:59:11,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-11-20 05:59:11,200 INFO L87 Difference]: Start difference. First operand has 192 states, 191 states have (on average 1.3664921465968587) internal successors, (261), 191 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) 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) [2021-11-20 05:59:11,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:59:11,325 INFO L93 Difference]: Finished difference Result 189 states and 247 transitions. [2021-11-20 05:59:11,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-20 05:59:11,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 189 states and 247 transitions. [2021-11-20 05:59:11,349 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2021-11-20 05:59:11,357 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 189 states to 179 states and 237 transitions. [2021-11-20 05:59:11,358 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 179 [2021-11-20 05:59:11,360 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 179 [2021-11-20 05:59:11,361 INFO L73 IsDeterministic]: Start isDeterministic. Operand 179 states and 237 transitions. [2021-11-20 05:59:11,363 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:59:11,363 INFO L681 BuchiCegarLoop]: Abstraction has 179 states and 237 transitions. [2021-11-20 05:59:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states and 237 transitions. [2021-11-20 05:59:11,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 179. [2021-11-20 05:59:11,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 179 states have (on average 1.324022346368715) internal successors, (237), 178 states have internal predecessors, (237), 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) [2021-11-20 05:59:11,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 237 transitions. [2021-11-20 05:59:11,410 INFO L704 BuchiCegarLoop]: Abstraction has 179 states and 237 transitions. [2021-11-20 05:59:11,411 INFO L587 BuchiCegarLoop]: Abstraction has 179 states and 237 transitions. [2021-11-20 05:59:11,411 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-11-20 05:59:11,411 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 179 states and 237 transitions. [2021-11-20 05:59:11,416 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2021-11-20 05:59:11,416 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:11,416 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:11,418 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:11,418 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] [2021-11-20 05:59:11,418 INFO L791 eck$LassoCheckResult]: Stem: 571#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 495#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 496#L552 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 446#L545 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 447#L560 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 448#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 566#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 534#L840-2 [2021-11-20 05:59:11,419 INFO L793 eck$LassoCheckResult]: Loop: 534#L840-2 assume !false; 535#L841 assume test_~splverifierCounter~0#1 < 4; 519#L842 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 520#L850 assume !(0 != test_~tmp~9#1); 564#L850-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 568#L860 assume !(0 != test_~tmp___0~3#1); 441#L860-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 550#L870 assume 0 != test_~tmp___2~0#1; 552#L876-2 assume { :begin_inline_timeShift } true; 531#L621 assume !(0 != ~pumpRunning~0); 472#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 473#L679 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 565#L653-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 421#L645-3 assume { :end_inline_processEnvironment__wrappee__base } true; 422#L653-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 525#L679-1 assume { :end_inline_processEnvironment } true; 554#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret33#1, __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 556#L467-2 __utac_acc__Specification3_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret33#1;havoc __utac_acc__Specification3_spec__1_#t~ret33#1; 557#L576 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 484#L582-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 485#L638 assume { :end_inline_timeShift } true; 534#L840-2 [2021-11-20 05:59:11,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:11,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2021-11-20 05:59:11,420 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:11,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078092474] [2021-11-20 05:59:11,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:11,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:11,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:11,440 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:11,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:11,466 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:11,467 INFO L85 PathProgramCache]: Analyzing trace with hash -1698464351, now seen corresponding path program 1 times [2021-11-20 05:59:11,467 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:11,468 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487036999] [2021-11-20 05:59:11,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:11,468 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:11,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:59:11,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:59:11,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:59:11,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487036999] [2021-11-20 05:59:11,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487036999] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:59:11,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:59:11,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-20 05:59:11,492 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595494419] [2021-11-20 05:59:11,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:59:11,493 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 05:59:11,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:59:11,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-20 05:59:11,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-20 05:59:11,494 INFO L87 Difference]: Start difference. First operand 179 states and 237 transitions. cyclomatic complexity: 60 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) [2021-11-20 05:59:11,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:59:11,608 INFO L93 Difference]: Finished difference Result 246 states and 314 transitions. [2021-11-20 05:59:11,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-20 05:59:11,610 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 246 states and 314 transitions. [2021-11-20 05:59:11,619 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2021-11-20 05:59:11,627 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 246 states to 246 states and 314 transitions. [2021-11-20 05:59:11,632 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 246 [2021-11-20 05:59:11,633 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 246 [2021-11-20 05:59:11,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 246 states and 314 transitions. [2021-11-20 05:59:11,637 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:59:11,639 INFO L681 BuchiCegarLoop]: Abstraction has 246 states and 314 transitions. [2021-11-20 05:59:11,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states and 314 transitions. [2021-11-20 05:59:11,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2021-11-20 05:59:11,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 246 states have (on average 1.2764227642276422) internal successors, (314), 245 states have internal predecessors, (314), 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) [2021-11-20 05:59:11,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 314 transitions. [2021-11-20 05:59:11,682 INFO L704 BuchiCegarLoop]: Abstraction has 246 states and 314 transitions. [2021-11-20 05:59:11,682 INFO L587 BuchiCegarLoop]: Abstraction has 246 states and 314 transitions. [2021-11-20 05:59:11,683 INFO L425 BuchiCegarLoop]: ======== Iteration 3============ [2021-11-20 05:59:11,683 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 246 states and 314 transitions. [2021-11-20 05:59:11,686 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2021-11-20 05:59:11,687 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:11,687 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:11,691 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:11,691 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, 1, 1, 1, 1] [2021-11-20 05:59:11,692 INFO L791 eck$LassoCheckResult]: Stem: 1016#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 924#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 925#L552 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 870#L545 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 871#L560 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 872#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1007#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 969#L840-2 [2021-11-20 05:59:11,693 INFO L793 eck$LassoCheckResult]: Loop: 969#L840-2 assume !false; 970#L841 assume test_~splverifierCounter~0#1 < 4; 949#L842 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 950#L850 assume !(0 != test_~tmp~9#1); 1002#L850-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1010#L860 assume !(0 != test_~tmp___0~3#1); 867#L860-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 988#L870 assume 0 != test_~tmp___2~0#1; 990#L876-2 assume { :begin_inline_timeShift } true; 966#L621 assume !(0 != ~pumpRunning~0); 900#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 901#L679 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1005#L653-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 873#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 874#L512-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 959#L799-3 assume !(0 != isHighWaterLevel_~tmp~7#1);isHighWaterLevel_~tmp___0~1#1 := 1; 953#L799-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 954#L805-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 964#L657-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 960#L645-2 assume { :end_inline_processEnvironment__wrappee__base } true; 961#L653-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1000#L679-1 assume { :end_inline_processEnvironment } true; 1073#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret33#1, __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1069#L467-2 __utac_acc__Specification3_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret33#1;havoc __utac_acc__Specification3_spec__1_#t~ret33#1; 1058#L576 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 1052#L582-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1049#L638 assume { :end_inline_timeShift } true; 969#L840-2 [2021-11-20 05:59:11,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:11,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2021-11-20 05:59:11,694 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:11,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29391323] [2021-11-20 05:59:11,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:11,695 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:11,710 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:11,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:11,731 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:11,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:11,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1557215913, now seen corresponding path program 1 times [2021-11-20 05:59:11,733 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:11,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576866248] [2021-11-20 05:59:11,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:11,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:59:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:59:11,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:59:11,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576866248] [2021-11-20 05:59:11,778 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576866248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:59:11,778 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:59:11,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:59:11,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28560856] [2021-11-20 05:59:11,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:59:11,780 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-11-20 05:59:11,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:59:11,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-20 05:59:11,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-20 05:59:11,781 INFO L87 Difference]: Start difference. First operand 246 states and 314 transitions. cyclomatic complexity: 70 Second operand has 4 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) [2021-11-20 05:59:11,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:59:11,915 INFO L93 Difference]: Finished difference Result 479 states and 603 transitions. [2021-11-20 05:59:11,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-20 05:59:11,918 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 479 states and 603 transitions. [2021-11-20 05:59:11,928 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 336 [2021-11-20 05:59:11,935 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 479 states to 479 states and 603 transitions. [2021-11-20 05:59:11,936 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 479 [2021-11-20 05:59:11,936 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 479 [2021-11-20 05:59:11,937 INFO L73 IsDeterministic]: Start isDeterministic. Operand 479 states and 603 transitions. [2021-11-20 05:59:11,945 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:59:11,945 INFO L681 BuchiCegarLoop]: Abstraction has 479 states and 603 transitions. [2021-11-20 05:59:11,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states and 603 transitions. [2021-11-20 05:59:11,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 258. [2021-11-20 05:59:11,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 258 states have (on average 1.2635658914728682) internal successors, (326), 257 states have internal predecessors, (326), 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) [2021-11-20 05:59:11,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 326 transitions. [2021-11-20 05:59:11,988 INFO L704 BuchiCegarLoop]: Abstraction has 258 states and 326 transitions. [2021-11-20 05:59:11,989 INFO L587 BuchiCegarLoop]: Abstraction has 258 states and 326 transitions. [2021-11-20 05:59:11,989 INFO L425 BuchiCegarLoop]: ======== Iteration 4============ [2021-11-20 05:59:11,989 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 258 states and 326 transitions. [2021-11-20 05:59:11,992 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 178 [2021-11-20 05:59:11,992 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:11,993 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:11,995 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:11,995 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, 1, 1, 1, 1] [2021-11-20 05:59:11,996 INFO L791 eck$LassoCheckResult]: Stem: 1761#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 1664#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1665#L552 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1607#L545 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 1608#L560 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 1609#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1750#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1710#L840-2 [2021-11-20 05:59:11,997 INFO L793 eck$LassoCheckResult]: Loop: 1710#L840-2 assume !false; 1711#L841 assume test_~splverifierCounter~0#1 < 4; 1721#L842 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 1791#L850 assume !(0 != test_~tmp~9#1); 1788#L850-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 1785#L860 assume !(0 != test_~tmp___0~3#1); 1782#L860-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 1729#L870 assume 0 != test_~tmp___2~0#1; 1731#L876-2 assume { :begin_inline_timeShift } true; 1707#L621 assume !(0 != ~pumpRunning~0); 1639#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 1640#L679 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 1749#L653-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 1610#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 1611#L512-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 1700#L799-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 1694#L799-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 1695#L805-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 1705#L657-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1701#L645-2 assume { :end_inline_processEnvironment__wrappee__base } true; 1702#L653-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1699#L679-1 assume { :end_inline_processEnvironment } true; 1733#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret33#1, __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 1737#L467-2 __utac_acc__Specification3_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret33#1;havoc __utac_acc__Specification3_spec__1_#t~ret33#1; 1738#L576 assume 0 != __utac_acc__Specification3_spec__1_~tmp~3#1; 1653#L582-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 1654#L638 assume { :end_inline_timeShift } true; 1710#L840-2 [2021-11-20 05:59:11,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:11,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 4 times [2021-11-20 05:59:11,998 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:11,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26849383] [2021-11-20 05:59:11,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:11,999 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,027 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:12,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,064 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:12,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:12,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1815381351, now seen corresponding path program 1 times [2021-11-20 05:59:12,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:12,065 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805073968] [2021-11-20 05:59:12,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:12,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,075 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,099 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:12,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:12,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1440093611, now seen corresponding path program 1 times [2021-11-20 05:59:12,103 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:12,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132308543] [2021-11-20 05:59:12,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:12,103 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-20 05:59:12,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-20 05:59:12,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-20 05:59:12,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132308543] [2021-11-20 05:59:12,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132308543] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-20 05:59:12,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-20 05:59:12,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-20 05:59:12,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815949655] [2021-11-20 05:59:12,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-20 05:59:12,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-20 05:59:12,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-20 05:59:12,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-20 05:59:12,493 INFO L87 Difference]: Start difference. First operand 258 states and 326 transitions. cyclomatic complexity: 70 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) [2021-11-20 05:59:12,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-20 05:59:12,736 INFO L93 Difference]: Finished difference Result 936 states and 1178 transitions. [2021-11-20 05:59:12,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-20 05:59:12,738 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 936 states and 1178 transitions. [2021-11-20 05:59:12,750 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 684 [2021-11-20 05:59:12,760 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 936 states to 936 states and 1178 transitions. [2021-11-20 05:59:12,760 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 936 [2021-11-20 05:59:12,761 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 936 [2021-11-20 05:59:12,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 936 states and 1178 transitions. [2021-11-20 05:59:12,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-11-20 05:59:12,764 INFO L681 BuchiCegarLoop]: Abstraction has 936 states and 1178 transitions. [2021-11-20 05:59:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 936 states and 1178 transitions. [2021-11-20 05:59:12,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 936 to 509. [2021-11-20 05:59:12,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 509 states, 509 states have (on average 1.2514734774066798) internal successors, (637), 508 states have internal predecessors, (637), 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) [2021-11-20 05:59:12,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 509 states to 509 states and 637 transitions. [2021-11-20 05:59:12,790 INFO L704 BuchiCegarLoop]: Abstraction has 509 states and 637 transitions. [2021-11-20 05:59:12,790 INFO L587 BuchiCegarLoop]: Abstraction has 509 states and 637 transitions. [2021-11-20 05:59:12,790 INFO L425 BuchiCegarLoop]: ======== Iteration 5============ [2021-11-20 05:59:12,791 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 509 states and 637 transitions. [2021-11-20 05:59:12,795 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 356 [2021-11-20 05:59:12,795 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-11-20 05:59:12,795 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-11-20 05:59:12,797 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:12,797 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, 1, 1, 1, 1, 1, 1] [2021-11-20 05:59:12,797 INFO L791 eck$LassoCheckResult]: Stem: 2977#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);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(7, 17);call write~init~int(44, 17, 0, 1);call write~init~int(77, 17, 1, 1);call write~init~int(101, 17, 2, 1);call write~init~int(116, 17, 3, 1);call write~init~int(104, 17, 4, 1);call write~init~int(58, 17, 5, 1);call write~init~int(0, 17, 6, 1);call #Ultimate.allocInit(5, 18);call write~init~int(67, 18, 0, 1);call write~init~int(82, 18, 1, 1);call write~init~int(73, 18, 2, 1);call write~init~int(84, 18, 3, 1);call write~init~int(0, 18, 4, 1);call #Ultimate.allocInit(3, 19);call write~init~int(79, 19, 0, 1);call write~init~int(75, 19, 1, 1);call write~init~int(0, 19, 2, 1);call #Ultimate.allocInit(2, 20);call write~init~int(41, 20, 0, 1);call write~init~int(0, 20, 1, 1);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4; 2878#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret54#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2879#L552 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2822#L545 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 2823#L560 main_#t~ret54#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret54#1;havoc main_#t~ret54#1; 2824#L977 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2965#L954 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet50#1, test_#t~nondet51#1, test_#t~nondet52#1, test_#t~nondet53#1, test_~splverifierCounter~0#1, test_~tmp~9#1, test_~tmp___0~3#1, test_~tmp___1~1#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~9#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~1#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2922#L840-2 [2021-11-20 05:59:12,797 INFO L793 eck$LassoCheckResult]: Loop: 2922#L840-2 assume !false; 2923#L841 assume test_~splverifierCounter~0#1 < 4; 2904#L842 test_~tmp~9#1 := test_#t~nondet50#1;havoc test_#t~nondet50#1; 2905#L850 assume !(0 != test_~tmp~9#1); 2959#L850-2 test_~tmp___0~3#1 := test_#t~nondet51#1;havoc test_#t~nondet51#1; 2970#L860 assume !(0 != test_~tmp___0~3#1); 2971#L860-2 test_~tmp___2~0#1 := test_#t~nondet52#1;havoc test_#t~nondet52#1; 3278#L870 assume 0 != test_~tmp___2~0#1; 2950#L876-2 assume { :begin_inline_timeShift } true; 2951#L621 assume !(0 != ~pumpRunning~0); 3266#L621-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~5#1;havoc processEnvironment_~tmp~5#1; 2962#L679 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1, processEnvironment__wrappee__highWaterSensor_~tmp~4#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~4#1; 2963#L653-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret48#1, isHighWaterLevel_~retValue_acc~11#1, isHighWaterLevel_~tmp~7#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~11#1;havoc isHighWaterLevel_~tmp~7#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1; 2819#L507-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1; 2820#L512-1 isHighWaterLevel_#t~ret48#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~7#1 := isHighWaterLevel_#t~ret48#1;havoc isHighWaterLevel_#t~ret48#1; 2912#L799-3 assume 0 != isHighWaterLevel_~tmp~7#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2907#L799-5 isHighWaterLevel_~retValue_acc~11#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~11#1; 2908#L805-1 processEnvironment__wrappee__highWaterSensor_#t~ret36#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~4#1 := processEnvironment__wrappee__highWaterSensor_#t~ret36#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret36#1; 2917#L657-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2915#L645-2 assume { :end_inline_processEnvironment__wrappee__base } true; 2916#L653-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2946#L679-1 assume { :end_inline_processEnvironment } true; 2947#L628-1 assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret33#1, __utac_acc__Specification3_spec__1_#t~ret34#1, __utac_acc__Specification3_spec__1_#t~ret35#1, __utac_acc__Specification3_spec__1_~tmp~3#1, __utac_acc__Specification3_spec__1_~tmp___0~0#1, __utac_acc__Specification3_spec__1_~tmp___1~0#1;havoc __utac_acc__Specification3_spec__1_~tmp~3#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~0#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;havoc isMethaneLevelCritical_~retValue_acc~3#1;isMethaneLevelCritical_~retValue_acc~3#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~3#1; 2952#L467-2 __utac_acc__Specification3_spec__1_#t~ret33#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~3#1 := __utac_acc__Specification3_spec__1_#t~ret33#1;havoc __utac_acc__Specification3_spec__1_#t~ret33#1; 3020#L576 assume !(0 != __utac_acc__Specification3_spec__1_~tmp~3#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1; 3021#L499 __utac_acc__Specification3_spec__1_#t~ret34#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~0#1 := __utac_acc__Specification3_spec__1_#t~ret34#1;havoc __utac_acc__Specification3_spec__1_#t~ret34#1; 2987#L582 assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~0#1); 2865#L582-1 assume { :end_inline___utac_acc__Specification3_spec__1 } true; 2866#L638 assume { :end_inline_timeShift } true; 2922#L840-2 [2021-11-20 05:59:12,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 5 times [2021-11-20 05:59:12,799 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:12,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306740662] [2021-11-20 05:59:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:12,800 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,821 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:12,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,837 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:12,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:12,838 INFO L85 PathProgramCache]: Analyzing trace with hash -823501876, now seen corresponding path program 1 times [2021-11-20 05:59:12,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:12,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170697950] [2021-11-20 05:59:12,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:12,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,862 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:12,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,877 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:12,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-20 05:59:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash -949236600, now seen corresponding path program 1 times [2021-11-20 05:59:12,879 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-20 05:59:12,879 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400425664] [2021-11-20 05:59:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-20 05:59:12,880 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-20 05:59:12,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,901 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-20 05:59:12,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-20 05:59:12,940 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-20 05:59:16,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 20.11 05:59:16 BoogieIcfgContainer [2021-11-20 05:59:16,780 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-11-20 05:59:16,781 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-20 05:59:16,781 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-20 05:59:16,781 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-20 05:59:16,782 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:59:10" (3/4) ... [2021-11-20 05:59:16,785 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-11-20 05:59:16,837 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/witness.graphml [2021-11-20 05:59:16,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-20 05:59:16,838 INFO L158 Benchmark]: Toolchain (without parser) took 8357.65ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 75.1MB in the beginning and 80.4MB in the end (delta: -5.3MB). Peak memory consumption was 49.2MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,839 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-20 05:59:16,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 610.56ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 83.0MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 92.29ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 78.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,841 INFO L158 Benchmark]: Boogie Preprocessor took 56.02ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,841 INFO L158 Benchmark]: RCFGBuilder took 935.93ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 52.5MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,842 INFO L158 Benchmark]: BuchiAutomizer took 6597.40ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 52.5MB in the beginning and 82.5MB in the end (delta: -30.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,843 INFO L158 Benchmark]: Witness Printer took 56.90ms. Allocated memory is still 174.1MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-20 05:59:16,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 119.5MB. Free memory is still 93.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 610.56ms. Allocated memory is still 119.5MB. Free memory was 74.9MB in the beginning and 83.0MB in the end (delta: -8.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 92.29ms. Allocated memory is still 119.5MB. Free memory was 83.0MB in the beginning and 78.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.02ms. Allocated memory is still 119.5MB. Free memory was 78.8MB in the beginning and 76.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 935.93ms. Allocated memory is still 119.5MB. Free memory was 76.2MB in the beginning and 52.5MB in the end (delta: 23.7MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 6597.40ms. Allocated memory was 119.5MB in the beginning and 174.1MB in the end (delta: 54.5MB). Free memory was 52.5MB in the beginning and 82.5MB in the end (delta: -30.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. * Witness Printer took 56.90ms. Allocated memory is still 174.1MB. Free memory was 82.5MB in the beginning and 80.4MB in the end (delta: 2.1MB). 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 4 terminating modules (4 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.4 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 509 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 6.5s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 5.4s. Construction of modules took 0.2s. Büchi inclusion checks took 0.3s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 648 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 509 states and ocurred in iteration 4. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2436 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2436 mSDsluCounter, 2741 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1684 mSDsCounter, 70 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 207 IncrementalHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 70 mSolverCounterUnsat, 1057 mSDtfsCounter, 207 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: 840]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {splverifierCounter=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@464d7949=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1378ad15=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@573835b9=29, tmp___0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79ae5d51=0, head=0, pumpRunning=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58b69930=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a29ba14=0, methaneLevelCritical=0, tmp___0=1, \result=0, retValue_acc=0, retValue_acc=1, retValue_acc=1, tmp=0, retValue_acc=0, \result=1, tmp=1, \result=1, retValue_acc=0, tmp=1, tmp___1=0, tmp___2=29, cleanupTimeShifts=4, \result=0, tmp=0, head=0, \result=1, tmp___1=0, NULL=0, retValue_acc=1, waterLevel=1, systemActive=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34967f10=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@399702d1=0, tmp___0=0, \result=0, tmp=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30583cc8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54327504=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5197fa13=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 840]: 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; [L614] int pumpRunning = 0; [L615] int systemActive = 1; [L895] int cleanupTimeShifts = 4; [L968] int retValue_acc ; [L969] int tmp ; [L973] FCALL select_helpers() [L974] FCALL select_features() [L975] CALL, EXPR valid_product() [L556] int retValue_acc ; [L559] retValue_acc = 1 [L560] return (retValue_acc); [L975] RET, EXPR valid_product() [L975] tmp = valid_product() [L977] COND TRUE \read(tmp) [L979] FCALL setup() [L980] CALL runTest() [L962] CALL test() [L831] int splverifierCounter ; [L832] int tmp ; [L833] int tmp___0 ; [L834] int tmp___1 ; [L835] int tmp___2 ; [L838] splverifierCounter = 0 Loop: [L840] COND TRUE 1 [L842] COND TRUE splverifierCounter < 4 [L848] tmp = __VERIFIER_nondet_int() [L850] COND FALSE !(\read(tmp)) [L858] tmp___0 = __VERIFIER_nondet_int() [L860] COND FALSE !(\read(tmp___0)) [L868] tmp___2 = __VERIFIER_nondet_int() [L870] COND TRUE \read(tmp___2) [L883] CALL timeShift() [L621] COND FALSE !(\read(pumpRunning)) [L628] COND TRUE \read(systemActive) [L630] CALL processEnvironment() [L676] int tmp ; [L679] COND FALSE !(\read(pumpRunning)) [L694] CALL processEnvironment__wrappee__highWaterSensor() [L650] int tmp ; [L653] COND TRUE ! pumpRunning [L655] CALL, EXPR isHighWaterLevel() [L791] int retValue_acc ; [L792] int tmp ; [L793] int tmp___0 ; [L797] CALL, EXPR isHighWaterSensorDry() [L504] int retValue_acc ; [L507] COND TRUE waterLevel < 2 [L508] retValue_acc = 1 [L509] return (retValue_acc); [L797] RET, EXPR isHighWaterSensorDry() [L797] tmp = isHighWaterSensorDry() [L799] COND TRUE \read(tmp) [L800] tmp___0 = 0 [L804] retValue_acc = tmp___0 [L805] return (retValue_acc); [L655] RET, EXPR isHighWaterLevel() [L655] tmp = isHighWaterLevel() [L657] COND FALSE !(\read(tmp)) [L663] FCALL processEnvironment__wrappee__base() [L694] RET processEnvironment__wrappee__highWaterSensor() [L630] RET processEnvironment() [L636] CALL __utac_acc__Specification3_spec__1() [L568] int tmp ; [L569] int tmp___0 ; [L570] int tmp___1 ; [L574] CALL, EXPR isMethaneLevelCritical() [L463] int retValue_acc ; [L466] retValue_acc = methaneLevelCritical [L467] return (retValue_acc); [L574] RET, EXPR isMethaneLevelCritical() [L574] tmp = isMethaneLevelCritical() [L576] COND FALSE !(\read(tmp)) [L580] CALL, EXPR getWaterLevel() [L495] int retValue_acc ; [L498] retValue_acc = waterLevel [L499] return (retValue_acc); [L580] RET, EXPR getWaterLevel() [L580] tmp___0 = getWaterLevel() [L582] COND FALSE !(tmp___0 == 2) [L636] RET __utac_acc__Specification3_spec__1() [L883] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-11-20 05:59:16,901 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c178d48a-337a-45ad-a297-10768b1ac36d/bin/uautomizer-DQz5hQGWxF/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)