./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 4e7fbc69 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS --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 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-4e7fbc6 [2022-11-23 02:42:48,941 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 02:42:48,943 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 02:42:48,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 02:42:48,967 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 02:42:48,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 02:42:48,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 02:42:48,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 02:42:48,974 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 02:42:48,975 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 02:42:48,976 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 02:42:48,978 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 02:42:48,979 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 02:42:48,980 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 02:42:48,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 02:42:48,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 02:42:48,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 02:42:48,986 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 02:42:48,988 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 02:42:48,990 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 02:42:48,992 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 02:42:48,997 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 02:42:48,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 02:42:49,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 02:42:49,004 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 02:42:49,008 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 02:42:49,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 02:42:49,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 02:42:49,014 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 02:42:49,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 02:42:49,017 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 02:42:49,019 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 02:42:49,020 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 02:42:49,022 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 02:42:49,023 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 02:42:49,024 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 02:42:49,025 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 02:42:49,025 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 02:42:49,026 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 02:42:49,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 02:42:49,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 02:42:49,030 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-11-23 02:42:49,075 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 02:42:49,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 02:42:49,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 02:42:49,083 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 02:42:49,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 02:42:49,085 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 02:42:49,085 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 02:42:49,086 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-11-23 02:42:49,086 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-11-23 02:42:49,086 INFO L138 SettingsManager]: * Use old map elimination=false [2022-11-23 02:42:49,088 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-11-23 02:42:49,088 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-11-23 02:42:49,088 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-11-23 02:42:49,088 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 02:42:49,089 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 02:42:49,089 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 02:42:49,089 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 02:42:49,089 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 02:42:49,090 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 02:42:49,090 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-11-23 02:42:49,090 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-11-23 02:42:49,090 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-11-23 02:42:49,091 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 02:42:49,091 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 02:42:49,091 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-11-23 02:42:49,091 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 02:42:49,092 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-11-23 02:42:49,092 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 02:42:49,093 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 02:42:49,093 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 02:42:49,093 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 02:42:49,095 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-11-23 02:42:49,095 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_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88f09ec5af0f641c9edfe2f7047937341e46c7f8baabeed0fd38f069cd3b5278 [2022-11-23 02:42:49,374 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 02:42:49,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 02:42:49,401 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 02:42:49,402 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 02:42:49,403 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 02:42:49,404 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2022-11-23 02:42:52,575 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 02:42:52,970 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 02:42:52,980 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c [2022-11-23 02:42:52,998 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/data/b20eec17d/16226622632644979a84b46a8ca2b2b2/FLAG6c47227d0 [2022-11-23 02:42:53,019 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/data/b20eec17d/16226622632644979a84b46a8ca2b2b2 [2022-11-23 02:42:53,026 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 02:42:53,028 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 02:42:53,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 02:42:53,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 02:42:53,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 02:42:53,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,038 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fd86aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53, skipping insertion in model container [2022-11-23 02:42:53,039 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,048 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 02:42:53,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 02:42:53,382 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c[3971,3984] [2022-11-23 02:42:53,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:42:53,496 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 02:42:53,520 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/sv-benchmarks/c/product-lines/minepump_spec5_product54.cil.c[3971,3984] [2022-11-23 02:42:53,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 02:42:53,630 INFO L208 MainTranslator]: Completed translation [2022-11-23 02:42:53,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53 WrapperNode [2022-11-23 02:42:53,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 02:42:53,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 02:42:53,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 02:42:53,634 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 02:42:53,643 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,742 INFO L138 Inliner]: procedures = 59, calls = 106, calls flagged for inlining = 59, calls inlined = 145, statements flattened = 988 [2022-11-23 02:42:53,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 02:42:53,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 02:42:53,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 02:42:53,753 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 02:42:53,764 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,784 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,792 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,805 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,823 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,825 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,841 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,846 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 02:42:53,847 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 02:42:53,847 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 02:42:53,847 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 02:42:53,848 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (1/1) ... [2022-11-23 02:42:53,872 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-11-23 02:42:53,888 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 02:42:53,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-11-23 02:42:53,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-11-23 02:42:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 02:42:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 02:42:53,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 02:42:53,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 02:42:54,094 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 02:42:54,097 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 02:42:54,915 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 02:42:54,927 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 02:42:54,927 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-23 02:42:54,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:54 BoogieIcfgContainer [2022-11-23 02:42:54,931 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 02:42:54,932 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-11-23 02:42:54,932 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-11-23 02:42:54,937 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-11-23 02:42:54,938 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:42:54,938 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 23.11 02:42:53" (1/3) ... [2022-11-23 02:42:54,939 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ae130cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:42:54, skipping insertion in model container [2022-11-23 02:42:54,940 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:42:54,940 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:42:53" (2/3) ... [2022-11-23 02:42:54,940 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ae130cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 23.11 02:42:54, skipping insertion in model container [2022-11-23 02:42:54,942 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-11-23 02:42:54,942 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:54" (3/3) ... [2022-11-23 02:42:54,944 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product54.cil.c [2022-11-23 02:42:55,037 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-11-23 02:42:55,037 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-11-23 02:42:55,038 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-11-23 02:42:55,038 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-11-23 02:42:55,038 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-11-23 02:42:55,038 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-11-23 02:42:55,038 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-11-23 02:42:55,038 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-11-23 02:42:55,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:55,075 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-11-23 02:42:55,075 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:55,076 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:55,084 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:55,084 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:55,084 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-11-23 02:42:55,085 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:55,094 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 183 [2022-11-23 02:42:55,095 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:55,095 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:55,096 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:55,096 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:55,102 INFO L748 eck$LassoCheckResult]: Stem: 266#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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 178#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 236#L650true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 35#L643true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 166#L658true main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 209#L310true assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 136#L282true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 99#L59true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 175#L571-2true [2022-11-23 02:42:55,103 INFO L750 eck$LassoCheckResult]: Loop: 175#L571-2true assume !false; 102#L572true assume test_~splverifierCounter~0#1 < 4; 52#L573true test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 277#L581true assume !(0 != test_~tmp~7#1); 262#L581-2true test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 109#L591true assume !(0 != test_~tmp___0~3#1); 111#L591-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 195#L601true assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 77#L609true assume 0 != test_~tmp___1~0#1; 278#L609-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 56#L474true __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 15#L69true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 213#L337true assume !(0 != ~pumpRunning~0); 118#L337-2true assume !(0 != ~systemActive~0); 105#L344-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 84#L184true __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 148#L80true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 264#L80-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 194#L354true assume { :end_inline_timeShift } true; 175#L571-2true [2022-11-23 02:42:55,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:55,110 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-11-23 02:42:55,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:55,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28480719] [2022-11-23 02:42:55,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:55,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:55,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:55,224 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:55,262 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:55,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:55,265 INFO L85 PathProgramCache]: Analyzing trace with hash 560089036, now seen corresponding path program 1 times [2022-11-23 02:42:55,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:55,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459846596] [2022-11-23 02:42:55,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:55,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:55,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:55,277 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:55,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:55,288 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:55,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:55,290 INFO L85 PathProgramCache]: Analyzing trace with hash 1989837379, now seen corresponding path program 1 times [2022-11-23 02:42:55,290 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:55,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724435678] [2022-11-23 02:42:55,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:55,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:55,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:42:55,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:42:55,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:42:55,549 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724435678] [2022-11-23 02:42:55,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724435678] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:42:55,550 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:42:55,550 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:42:55,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314871944] [2022-11-23 02:42:55,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:42:55,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:42:55,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-23 02:42:55,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-11-23 02:42:55,829 INFO L87 Difference]: Start difference. First operand has 281 states, 280 states have (on average 1.3678571428571429) internal successors, (383), 280 states have internal predecessors, (383), 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 4.5) internal successors, (27), 5 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) [2022-11-23 02:42:55,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:42:55,963 INFO L93 Difference]: Finished difference Result 278 states and 369 transitions. [2022-11-23 02:42:55,965 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 278 states and 369 transitions. [2022-11-23 02:42:55,970 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-11-23 02:42:55,985 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 278 states to 268 states and 359 transitions. [2022-11-23 02:42:55,986 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 268 [2022-11-23 02:42:55,987 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 268 [2022-11-23 02:42:55,992 INFO L73 IsDeterministic]: Start isDeterministic. Operand 268 states and 359 transitions. [2022-11-23 02:42:55,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:42:55,994 INFO L218 hiAutomatonCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-11-23 02:42:56,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states and 359 transitions. [2022-11-23 02:42:56,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 268. [2022-11-23 02:42:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 268 states, 268 states have (on average 1.3395522388059702) internal successors, (359), 267 states have internal predecessors, (359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:56,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 359 transitions. [2022-11-23 02:42:56,062 INFO L240 hiAutomatonCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-11-23 02:42:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 02:42:56,068 INFO L428 stractBuchiCegarLoop]: Abstraction has 268 states and 359 transitions. [2022-11-23 02:42:56,068 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-11-23 02:42:56,069 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 268 states and 359 transitions. [2022-11-23 02:42:56,073 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 179 [2022-11-23 02:42:56,073 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:56,073 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:56,078 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,078 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,078 INFO L748 eck$LassoCheckResult]: Stem: 842#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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 817#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 818#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 639#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 640#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 812#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 786#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 744#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 745#L571-2 [2022-11-23 02:42:56,079 INFO L750 eck$LassoCheckResult]: Loop: 745#L571-2 assume !false; 746#L572 assume test_~splverifierCounter~0#1 < 4; 670#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 671#L581 assume !(0 != test_~tmp~7#1); 829#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 756#L591 assume !(0 != test_~tmp___0~3#1); 757#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 759#L601 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 713#L609 assume 0 != test_~tmp___1~0#1; 714#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 676#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 604#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 605#L337 assume !(0 != ~pumpRunning~0); 768#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 629#L421 assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret16#1, isMethaneAlarm_~retValue_acc~5#1;havoc isMethaneAlarm_~retValue_acc~5#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 630#L152 isMethaneAlarm_#t~ret16#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~5#1 := isMethaneAlarm_#t~ret16#1;havoc isMethaneAlarm_#t~ret16#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~5#1; 638#L465 processEnvironment_#t~ret15#1 := isMethaneAlarm_#res#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret15#1;havoc processEnvironment_#t~ret15#1; 780#L425 assume 0 != processEnvironment_~tmp~4#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0; 790#L455 assume { :end_inline_deactivatePump } true; 791#L421-1 assume { :end_inline_processEnvironment } true; 750#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 723#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 724#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 644#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 825#L354 assume { :end_inline_timeShift } true; 745#L571-2 [2022-11-23 02:42:56,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,080 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-11-23 02:42:56,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402727725] [2022-11-23 02:42:56,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,101 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:56,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,124 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:56,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1262008533, now seen corresponding path program 1 times [2022-11-23 02:42:56,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,126 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432813149] [2022-11-23 02:42:56,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:42:56,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:42:56,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:42:56,185 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432813149] [2022-11-23 02:42:56,185 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432813149] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:42:56,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:42:56,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-23 02:42:56,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747517031] [2022-11-23 02:42:56,188 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:42:56,188 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:42:56,189 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:42:56,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 02:42:56,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 02:42:56,190 INFO L87 Difference]: Start difference. First operand 268 states and 359 transitions. cyclomatic complexity: 93 Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:56,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:42:56,332 INFO L93 Difference]: Finished difference Result 288 states and 365 transitions. [2022-11-23 02:42:56,332 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 288 states and 365 transitions. [2022-11-23 02:42:56,336 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2022-11-23 02:42:56,341 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 288 states to 288 states and 365 transitions. [2022-11-23 02:42:56,342 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 288 [2022-11-23 02:42:56,343 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 288 [2022-11-23 02:42:56,344 INFO L73 IsDeterministic]: Start isDeterministic. Operand 288 states and 365 transitions. [2022-11-23 02:42:56,351 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:42:56,351 INFO L218 hiAutomatonCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-11-23 02:42:56,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states and 365 transitions. [2022-11-23 02:42:56,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 288. [2022-11-23 02:42:56,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 288 states have (on average 1.2673611111111112) internal successors, (365), 287 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:56,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 365 transitions. [2022-11-23 02:42:56,365 INFO L240 hiAutomatonCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-11-23 02:42:56,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 02:42:56,376 INFO L428 stractBuchiCegarLoop]: Abstraction has 288 states and 365 transitions. [2022-11-23 02:42:56,376 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-11-23 02:42:56,376 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 288 states and 365 transitions. [2022-11-23 02:42:56,378 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 198 [2022-11-23 02:42:56,378 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:56,378 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:56,380 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,381 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,381 INFO L748 eck$LassoCheckResult]: Stem: 1358#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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 1335#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 1336#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1189#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 1190#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 1332#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 1311#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1276#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1277#L571-2 [2022-11-23 02:42:56,381 INFO L750 eck$LassoCheckResult]: Loop: 1277#L571-2 assume !false; 1279#L572 assume test_~splverifierCounter~0#1 < 4; 1214#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 1215#L581 assume !(0 != test_~tmp~7#1); 1348#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 1287#L591 assume !(0 != test_~tmp___0~3#1); 1288#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 1293#L601 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 1255#L609 assume 0 != test_~tmp___1~0#1; 1256#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 1221#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 1159#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1160#L337 assume !(0 != ~pumpRunning~0); 1296#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 1181#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 1182#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 1320#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 1337#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1218#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1141#L523-9 assume !(0 != isHighWaterLevel_~tmp~5#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1142#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 1281#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1282#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1302#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 1219#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1220#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 1313#L421-1 assume { :end_inline_processEnvironment } true; 1283#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 1261#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 1262#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 1192#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1342#L354 assume { :end_inline_timeShift } true; 1277#L571-2 [2022-11-23 02:42:56,382 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,382 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-11-23 02:42:56,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,383 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720670475] [2022-11-23 02:42:56,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:56,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1936843576, now seen corresponding path program 1 times [2022-11-23 02:42:56,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,419 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266894206] [2022-11-23 02:42:56,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:42:56,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:42:56,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:42:56,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266894206] [2022-11-23 02:42:56,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266894206] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:42:56,554 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:42:56,554 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:42:56,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330328950] [2022-11-23 02:42:56,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:42:56,555 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:42:56,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:42:56,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:42:56,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:42:56,557 INFO L87 Difference]: Start difference. First operand 288 states and 365 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:42:56,771 INFO L93 Difference]: Finished difference Result 870 states and 1091 transitions. [2022-11-23 02:42:56,771 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 870 states and 1091 transitions. [2022-11-23 02:42:56,778 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 620 [2022-11-23 02:42:56,784 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 870 states to 870 states and 1091 transitions. [2022-11-23 02:42:56,784 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 870 [2022-11-23 02:42:56,785 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 870 [2022-11-23 02:42:56,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 870 states and 1091 transitions. [2022-11-23 02:42:56,787 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:42:56,787 INFO L218 hiAutomatonCegarLoop]: Abstraction has 870 states and 1091 transitions. [2022-11-23 02:42:56,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 870 states and 1091 transitions. [2022-11-23 02:42:56,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 870 to 315. [2022-11-23 02:42:56,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 315 states have (on average 1.2444444444444445) internal successors, (392), 314 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:56,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 392 transitions. [2022-11-23 02:42:56,799 INFO L240 hiAutomatonCegarLoop]: Abstraction has 315 states and 392 transitions. [2022-11-23 02:42:56,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:42:56,801 INFO L428 stractBuchiCegarLoop]: Abstraction has 315 states and 392 transitions. [2022-11-23 02:42:56,801 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-11-23 02:42:56,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 315 states and 392 transitions. [2022-11-23 02:42:56,803 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 216 [2022-11-23 02:42:56,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:56,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:56,805 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:56,805 INFO L748 eck$LassoCheckResult]: Stem: 2553#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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 2514#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 2515#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2362#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 2363#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 2511#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 2486#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2453#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2454#L571-2 [2022-11-23 02:42:56,805 INFO L750 eck$LassoCheckResult]: Loop: 2454#L571-2 assume !false; 2457#L572 assume test_~splverifierCounter~0#1 < 4; 2389#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 2390#L581 assume !(0 != test_~tmp~7#1); 2528#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 2464#L591 assume !(0 != test_~tmp___0~3#1); 2465#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 2469#L601 assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1; 2523#L557 assume { :end_inline_startSystem } true; 2431#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 2556#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 2330#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2331#L337 assume !(0 != ~pumpRunning~0); 2474#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 2354#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 2355#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 2497#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 2517#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2393#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2315#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2317#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 2574#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 2570#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2487#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 2488#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2593#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 2490#L421-1 assume { :end_inline_processEnvironment } true; 2592#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 2591#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 2589#L80 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~0#1); 2552#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2521#L354 assume { :end_inline_timeShift } true; 2454#L571-2 [2022-11-23 02:42:56,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,806 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-11-23 02:42:56,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1908652125] [2022-11-23 02:42:56,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,837 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:56,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:56,850 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:56,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1717381161, now seen corresponding path program 1 times [2022-11-23 02:42:56,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:56,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900889615] [2022-11-23 02:42:56,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:56,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:56,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 02:42:56,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 02:42:56,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 02:42:56,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900889615] [2022-11-23 02:42:56,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900889615] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 02:42:56,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 02:42:56,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-23 02:42:56,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883918933] [2022-11-23 02:42:56,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 02:42:56,961 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-11-23 02:42:56,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 02:42:56,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-23 02:42:56,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-23 02:42:56,963 INFO L87 Difference]: Start difference. First operand 315 states and 392 transitions. cyclomatic complexity: 79 Second operand has 5 states, 5 states have (on average 6.4) internal successors, (32), 5 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:57,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 02:42:57,203 INFO L93 Difference]: Finished difference Result 938 states and 1142 transitions. [2022-11-23 02:42:57,204 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 938 states and 1142 transitions. [2022-11-23 02:42:57,211 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 591 [2022-11-23 02:42:57,217 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 938 states to 938 states and 1142 transitions. [2022-11-23 02:42:57,218 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 938 [2022-11-23 02:42:57,219 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 938 [2022-11-23 02:42:57,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 938 states and 1142 transitions. [2022-11-23 02:42:57,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 02:42:57,220 INFO L218 hiAutomatonCegarLoop]: Abstraction has 938 states and 1142 transitions. [2022-11-23 02:42:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 938 states and 1142 transitions. [2022-11-23 02:42:57,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 938 to 620. [2022-11-23 02:42:57,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 620 states, 620 states have (on average 1.2209677419354839) internal successors, (757), 619 states have internal predecessors, (757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 02:42:57,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 620 states to 620 states and 757 transitions. [2022-11-23 02:42:57,235 INFO L240 hiAutomatonCegarLoop]: Abstraction has 620 states and 757 transitions. [2022-11-23 02:42:57,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-23 02:42:57,237 INFO L428 stractBuchiCegarLoop]: Abstraction has 620 states and 757 transitions. [2022-11-23 02:42:57,237 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-11-23 02:42:57,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 620 states and 757 transitions. [2022-11-23 02:42:57,241 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 430 [2022-11-23 02:42:57,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-11-23 02:42:57,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-11-23 02:42:57,242 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:57,242 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 02:42:57,243 INFO L748 eck$LassoCheckResult]: Stem: 3824#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);~switchedOnBeforeTS~0 := 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0; 3785#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret12#1, main_~retValue_acc~4#1, main_~tmp~1#1;havoc main_~retValue_acc~4#1;havoc main_~tmp~1#1;assume { :begin_inline_select_helpers } true; 3786#L650 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3631#L643 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~10#1;havoc valid_product_~retValue_acc~10#1;valid_product_~retValue_acc~10#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~10#1; 3632#L658 main_#t~ret12#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~1#1 := main_#t~ret12#1;havoc main_#t~ret12#1; 3780#L310 assume 0 != main_~tmp~1#1;assume { :begin_inline_setup } true; 3758#L282 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 3720#L59 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~7#1, test_~tmp___0~3#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~7#1;havoc test_~tmp___0~3#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 3721#L571-2 [2022-11-23 02:42:57,243 INFO L750 eck$LassoCheckResult]: Loop: 3721#L571-2 assume !false; 3725#L572 assume test_~splverifierCounter~0#1 < 4; 3726#L573 test_~tmp~7#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 4199#L581 assume !(0 != test_~tmp~7#1); 4198#L581-2 test_~tmp___0~3#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 4196#L591 assume !(0 != test_~tmp___0~3#1); 4194#L591-2 test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 4193#L601 assume !(0 != test_~tmp___2~0#1);test_~tmp___1~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1; 4192#L609 assume 0 != test_~tmp___1~0#1; 4190#L609-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 4189#L474 __utac_acc__Specification5_spec__2_#t~ret4#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret4#1;havoc __utac_acc__Specification5_spec__2_#t~ret4#1; 4180#L69 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4178#L337 assume !(0 != ~pumpRunning~0); 4126#L337-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret15#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1; 4174#L421 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret14#1, processEnvironment__wrappee__lowWaterSensor_~tmp~3#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~3#1; 4105#L395-2 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~2#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~2#1; 4171#L369-6 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~7#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~7#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~2#1;havoc isHighWaterSensorDry_~retValue_acc~2#1; 3810#L192-3 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 3811#L197-3 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 4152#L523-9 assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0; 4150#L523-11 isHighWaterLevel_~retValue_acc~7#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~7#1; 4149#L529-3 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~2#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 4148#L373-9 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~2#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4144#L361-6 assume { :end_inline_processEnvironment__wrappee__base } true; 4122#L369-7 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4095#L395-3 assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true; 4092#L421-1 assume { :end_inline_processEnvironment } true; 3730#L344-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret5#1, __utac_acc__Specification5_spec__3_#t~ret6#1, __utac_acc__Specification5_spec__3_~tmp~0#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~0#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~1#1;havoc getWaterLevel_~retValue_acc~1#1;getWaterLevel_~retValue_acc~1#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~1#1; 3706#L184 __utac_acc__Specification5_spec__3_#t~ret5#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~0#1 := __utac_acc__Specification5_spec__3_#t~ret5#1;havoc __utac_acc__Specification5_spec__3_#t~ret5#1; 3707#L80 assume 2 != __utac_acc__Specification5_spec__3_~tmp~0#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~6#1;havoc isPumpRunning_~retValue_acc~6#1;isPumpRunning_~retValue_acc~6#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~6#1; 3766#L474-1 __utac_acc__Specification5_spec__3_#t~ret6#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret6#1;havoc __utac_acc__Specification5_spec__3_#t~ret6#1; 3739#L84 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1); 3634#L80-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 3794#L354 assume { :end_inline_timeShift } true; 3721#L571-2 [2022-11-23 02:42:57,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:57,244 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-11-23 02:42:57,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:57,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002135537] [2022-11-23 02:42:57,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:57,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:57,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,252 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:57,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,260 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:57,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:57,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1448358863, now seen corresponding path program 1 times [2022-11-23 02:42:57,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:57,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756017476] [2022-11-23 02:42:57,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:57,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:57,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:57,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,281 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:57,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 02:42:57,285 INFO L85 PathProgramCache]: Analyzing trace with hash 612791514, now seen corresponding path program 1 times [2022-11-23 02:42:57,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 02:42:57,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692922657] [2022-11-23 02:42:57,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 02:42:57,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 02:42:57,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:57,328 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 02:42:58,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:58,776 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 02:42:58,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 02:42:58,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 23.11 02:42:58 BoogieIcfgContainer [2022-11-23 02:42:58,870 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-11-23 02:42:58,870 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 02:42:58,870 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 02:42:58,871 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 02:42:58,871 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:42:54" (3/4) ... [2022-11-23 02:42:58,874 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-11-23 02:42:58,950 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/witness.graphml [2022-11-23 02:42:58,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 02:42:58,951 INFO L158 Benchmark]: Toolchain (without parser) took 5922.17ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 83.2MB in the beginning and 52.9MB in the end (delta: 30.3MB). Peak memory consumption was 70.6MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,951 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 02:42:58,952 INFO L158 Benchmark]: CACSL2BoogieTranslator took 601.52ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 82.8MB in the beginning and 134.1MB in the end (delta: -51.2MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,953 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.00ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 129.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,953 INFO L158 Benchmark]: Boogie Preprocessor took 94.02ms. Allocated memory is still 165.7MB. Free memory was 129.0MB in the beginning and 125.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,954 INFO L158 Benchmark]: RCFGBuilder took 1084.13ms. Allocated memory is still 165.7MB. Free memory was 125.9MB in the beginning and 91.2MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,954 INFO L158 Benchmark]: BuchiAutomizer took 3937.64ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 56.0MB in the end (delta: 35.2MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,955 INFO L158 Benchmark]: Witness Printer took 79.65ms. Allocated memory is still 165.7MB. Free memory was 56.0MB in the beginning and 52.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 02:42:58,959 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 127.9MB. Free memory was 70.4MB in the beginning and 70.3MB in the end (delta: 117.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 601.52ms. Allocated memory was 127.9MB in the beginning and 165.7MB in the end (delta: 37.7MB). Free memory was 82.8MB in the beginning and 134.1MB in the end (delta: -51.2MB). Peak memory consumption was 24.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.00ms. Allocated memory is still 165.7MB. Free memory was 133.2MB in the beginning and 129.0MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.02ms. Allocated memory is still 165.7MB. Free memory was 129.0MB in the beginning and 125.9MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1084.13ms. Allocated memory is still 165.7MB. Free memory was 125.9MB in the beginning and 91.2MB in the end (delta: 34.7MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * BuchiAutomizer took 3937.64ms. Allocated memory is still 165.7MB. Free memory was 91.2MB in the beginning and 56.0MB in the end (delta: 35.2MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * Witness Printer took 79.65ms. Allocated memory is still 165.7MB. Free memory was 56.0MB in the beginning and 52.9MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. 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 620 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.7s and 5 iterations. TraceHistogramMax:1. Analysis of lassos took 2.6s. Construction of modules took 0.3s. Büchi inclusion checks took 0.6s. Highest rank in rank-based complementation 0. Minimization of det autom 4. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 873 StatesRemovedByMinimization, 2 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3153 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3153 mSDsluCounter, 3549 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2040 mSDsCounter, 115 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 302 IncrementalHoareTripleChecker+Invalid, 417 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 115 mSolverCounterUnsat, 1509 mSDtfsCounter, 302 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI3 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 571]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L53] int switchedOnBeforeTS ; [L109] int waterLevel = 1; [L110] int methaneLevelCritical = 0; [L221] int cleanupTimeShifts = 4; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L832] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L301] int retValue_acc ; [L302] int tmp ; [L306] FCALL select_helpers() [L307] FCALL select_features() [L308] CALL, EXPR valid_product() [L654] int retValue_acc ; [L657] retValue_acc = 1 [L658] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L308] RET, EXPR valid_product() [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L312] FCALL setup() [L313] CALL runTest() [L291] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L291] RET __utac_acc__Specification5_spec__1() [L292] CALL test() [L562] int splverifierCounter ; [L563] int tmp ; [L564] int tmp___0 ; [L565] int tmp___1 ; [L566] int tmp___2 ; [L569] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L571] COND TRUE 1 [L573] COND TRUE splverifierCounter < 4 [L579] tmp = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp)) [L589] tmp___0 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___0)) [L599] tmp___2 = __VERIFIER_nondet_int() [L601] COND FALSE !(\read(tmp___2)) [L607] tmp___1 = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp___1) [L616] CALL timeShift() [L335] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L335] RET __utac_acc__Specification5_spec__2() [L337] COND FALSE !(\read(pumpRunning)) [L344] COND TRUE \read(systemActive) [L346] CALL processEnvironment() [L418] int tmp ; [L421] COND FALSE !(\read(pumpRunning)) [L436] CALL processEnvironment__wrappee__lowWaterSensor() [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L410] CALL processEnvironment__wrappee__highWaterSensor() [L366] int tmp ; [L369] COND TRUE ! pumpRunning [L371] CALL, EXPR isHighWaterLevel() [L515] int retValue_acc ; [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isHighWaterSensorDry() [L189] int retValue_acc ; [L192] COND TRUE waterLevel < 2 [L193] retValue_acc = 1 [L194] return (retValue_acc); [L521] RET, EXPR isHighWaterSensorDry() [L521] tmp = isHighWaterSensorDry() [L523] COND TRUE \read(tmp) [L524] tmp___0 = 0 [L528] retValue_acc = tmp___0 [L529] return (retValue_acc); [L371] RET, EXPR isHighWaterLevel() [L371] tmp = isHighWaterLevel() [L373] COND FALSE !(\read(tmp)) [L379] FCALL processEnvironment__wrappee__base() [L410] RET processEnvironment__wrappee__highWaterSensor() [L436] RET processEnvironment__wrappee__lowWaterSensor() [L346] RET processEnvironment() [L352] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L180] int retValue_acc ; [L183] retValue_acc = waterLevel [L184] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L352] RET __utac_acc__Specification5_spec__3() [L616] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 571]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L53] int switchedOnBeforeTS ; [L109] int waterLevel = 1; [L110] int methaneLevelCritical = 0; [L221] int cleanupTimeShifts = 4; [L327] int pumpRunning = 0; [L328] int systemActive = 1; [L832] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L301] int retValue_acc ; [L302] int tmp ; [L306] FCALL select_helpers() [L307] FCALL select_features() [L308] CALL, EXPR valid_product() [L654] int retValue_acc ; [L657] retValue_acc = 1 [L658] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L308] RET, EXPR valid_product() [L308] tmp = valid_product() [L310] COND TRUE \read(tmp) [L312] FCALL setup() [L313] CALL runTest() [L291] CALL __utac_acc__Specification5_spec__1() [L58] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L291] RET __utac_acc__Specification5_spec__1() [L292] CALL test() [L562] int splverifierCounter ; [L563] int tmp ; [L564] int tmp___0 ; [L565] int tmp___1 ; [L566] int tmp___2 ; [L569] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L571] COND TRUE 1 [L573] COND TRUE splverifierCounter < 4 [L579] tmp = __VERIFIER_nondet_int() [L581] COND FALSE !(\read(tmp)) [L589] tmp___0 = __VERIFIER_nondet_int() [L591] COND FALSE !(\read(tmp___0)) [L599] tmp___2 = __VERIFIER_nondet_int() [L601] COND FALSE !(\read(tmp___2)) [L607] tmp___1 = __VERIFIER_nondet_int() [L609] COND TRUE \read(tmp___1) [L616] CALL timeShift() [L335] CALL __utac_acc__Specification5_spec__2() [L67] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L67] RET, EXPR isPumpRunning() [L67] switchedOnBeforeTS = isPumpRunning() [L335] RET __utac_acc__Specification5_spec__2() [L337] COND FALSE !(\read(pumpRunning)) [L344] COND TRUE \read(systemActive) [L346] CALL processEnvironment() [L418] int tmp ; [L421] COND FALSE !(\read(pumpRunning)) [L436] CALL processEnvironment__wrappee__lowWaterSensor() [L392] int tmp ; [L395] COND FALSE !(\read(pumpRunning)) [L410] CALL processEnvironment__wrappee__highWaterSensor() [L366] int tmp ; [L369] COND TRUE ! pumpRunning [L371] CALL, EXPR isHighWaterLevel() [L515] int retValue_acc ; [L516] int tmp ; [L517] int tmp___0 ; [L521] CALL, EXPR isHighWaterSensorDry() [L189] int retValue_acc ; [L192] COND TRUE waterLevel < 2 [L193] retValue_acc = 1 [L194] return (retValue_acc); [L521] RET, EXPR isHighWaterSensorDry() [L521] tmp = isHighWaterSensorDry() [L523] COND TRUE \read(tmp) [L524] tmp___0 = 0 [L528] retValue_acc = tmp___0 [L529] return (retValue_acc); [L371] RET, EXPR isHighWaterLevel() [L371] tmp = isHighWaterLevel() [L373] COND FALSE !(\read(tmp)) [L379] FCALL processEnvironment__wrappee__base() [L410] RET processEnvironment__wrappee__highWaterSensor() [L436] RET processEnvironment__wrappee__lowWaterSensor() [L346] RET processEnvironment() [L352] CALL __utac_acc__Specification5_spec__3() [L73] int tmp ; [L74] int tmp___0 ; [L78] CALL, EXPR getWaterLevel() [L180] int retValue_acc ; [L183] retValue_acc = waterLevel [L184] return (retValue_acc); [L78] RET, EXPR getWaterLevel() [L78] tmp = getWaterLevel() [L80] COND TRUE tmp != 2 [L82] CALL, EXPR isPumpRunning() [L470] int retValue_acc ; [L473] retValue_acc = pumpRunning [L474] return (retValue_acc); [L82] RET, EXPR isPumpRunning() [L82] tmp___0 = isPumpRunning() [L84] COND FALSE !(\read(tmp___0)) [L352] RET __utac_acc__Specification5_spec__3() [L616] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-11-23 02:42:59,023 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_95c58e23-b304-4053-a122-27fc1aa92b96/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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)