./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8 --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 bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c --- 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-2329fc7 [2022-12-13 13:25:08,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:25:08,007 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:25:08,026 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:25:08,026 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:25:08,027 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:25:08,028 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:25:08,030 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:25:08,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:25:08,032 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:25:08,033 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:25:08,034 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:25:08,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:25:08,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:25:08,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:25:08,038 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:25:08,039 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:25:08,040 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:25:08,041 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:25:08,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:25:08,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:25:08,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:25:08,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:25:08,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:25:08,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:25:08,052 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:25:08,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:25:08,053 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:25:08,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:25:08,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:25:08,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:25:08,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:25:08,056 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:25:08,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:25:08,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:25:08,058 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:25:08,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:25:08,059 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:25:08,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:25:08,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:25:08,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:25:08,061 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-12-13 13:25:08,081 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:25:08,082 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:25:08,082 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:25:08,082 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:25:08,083 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:25:08,083 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:25:08,084 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:25:08,084 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-12-13 13:25:08,084 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-12-13 13:25:08,084 INFO L138 SettingsManager]: * Use old map elimination=false [2022-12-13 13:25:08,084 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-12-13 13:25:08,085 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-12-13 13:25:08,085 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-12-13 13:25:08,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:25:08,085 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:25:08,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-12-13 13:25:08,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-12-13 13:25:08,087 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:25:08,087 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:25:08,087 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-12-13 13:25:08,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:25:08,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-12-13 13:25:08,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:25:08,088 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:25:08,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:25:08,088 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:25:08,089 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-12-13 13:25:08,089 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_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bed571a327ae9eee0b2e62daa6070780d20555ec322abcda9e725c1fa87edc9c [2022-12-13 13:25:08,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:25:08,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:25:08,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:25:08,313 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:25:08,314 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:25:08,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2022-12-13 13:25:10,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:25:11,075 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:25:11,075 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c [2022-12-13 13:25:11,082 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/data/104c3ef8d/ec3bb2810b66429295f70b9e48a5a402/FLAG5819e586b [2022-12-13 13:25:11,495 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/data/104c3ef8d/ec3bb2810b66429295f70b9e48a5a402 [2022-12-13 13:25:11,497 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:25:11,498 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:25:11,499 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:25:11,500 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:25:11,502 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:25:11,502 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30db9720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11, skipping insertion in model container [2022-12-13 13:25:11,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,508 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:25:11,545 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:25:11,708 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_3be5c672-3c61-44e9-a20b-f8f681196998/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2022-12-13 13:25:11,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:25:11,725 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:25:11,766 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_3be5c672-3c61-44e9-a20b-f8f681196998/sv-benchmarks/c/product-lines/minepump_spec5_product59.cil.c[17002,17015] [2022-12-13 13:25:11,771 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:25:11,784 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:25:11,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11 WrapperNode [2022-12-13 13:25:11,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:25:11,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:25:11,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:25:11,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:25:11,790 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,827 INFO L138 Inliner]: procedures = 59, calls = 105, calls flagged for inlining = 58, calls inlined = 104, statements flattened = 716 [2022-12-13 13:25:11,828 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:25:11,828 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:25:11,828 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:25:11,828 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:25:11,835 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,836 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,838 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,838 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,844 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,849 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,850 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,854 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:25:11,855 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:25:11,855 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:25:11,855 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:25:11,856 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (1/1) ... [2022-12-13 13:25:11,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-12-13 13:25:11,870 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:25:11,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-12-13 13:25:11,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-12-13 13:25:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:25:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:25:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:25:11,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:25:11,977 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:25:11,979 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:25:12,361 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:25:12,369 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:25:12,369 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 13:25:12,383 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:12 BoogieIcfgContainer [2022-12-13 13:25:12,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:25:12,384 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-12-13 13:25:12,385 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-12-13 13:25:12,388 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-12-13 13:25:12,389 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:12,389 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 13.12 01:25:11" (1/3) ... [2022-12-13 13:25:12,390 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b4c5393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:25:12, skipping insertion in model container [2022-12-13 13:25:12,390 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:12,390 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:25:11" (2/3) ... [2022-12-13 13:25:12,391 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6b4c5393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 13.12 01:25:12, skipping insertion in model container [2022-12-13 13:25:12,391 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-12-13 13:25:12,391 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:12" (3/3) ... [2022-12-13 13:25:12,392 INFO L332 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product59.cil.c [2022-12-13 13:25:12,436 INFO L303 stractBuchiCegarLoop]: Interprodecural is true [2022-12-13 13:25:12,436 INFO L304 stractBuchiCegarLoop]: Hoare is false [2022-12-13 13:25:12,436 INFO L305 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-12-13 13:25:12,436 INFO L306 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-12-13 13:25:12,436 INFO L307 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-12-13 13:25:12,436 INFO L308 stractBuchiCegarLoop]: Difference is false [2022-12-13 13:25:12,436 INFO L309 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-12-13 13:25:12,436 INFO L313 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-12-13 13:25:12,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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) [2022-12-13 13:25:12,458 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-12-13 13:25:12,458 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:12,458 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:12,464 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:12,464 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:12,464 INFO L335 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-12-13 13:25:12,465 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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) [2022-12-13 13:25:12,470 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 130 [2022-12-13 13:25:12,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:12,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:12,471 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:12,471 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:12,476 INFO L748 eck$LassoCheckResult]: Stem: 116#$Ultimate##0true 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 123#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 17#select_helpers_returnLabel#1true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 171#select_features_returnLabel#1true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 68#valid_product_returnLabel#1true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 159#L980true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 55#setup_returnLabel#1true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 185#__utac_acc__Specification5_spec__1_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 177#L174-2true [2022-12-13 13:25:12,477 INFO L750 eck$LassoCheckResult]: Loop: 177#L174-2true assume !false; 106#L175true assume test_~splverifierCounter~0#1 < 4; 124#L176true test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 63#L184true assume !(0 != test_~tmp~0#1); 146#L184-2true test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 160#L194true assume !(0 != test_~tmp___0~0#1); 194#L194-2true test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 87#L204true assume 0 != test_~tmp___2~0#1; 189#L210-2true assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 180#isPumpRunning_returnLabel#1true __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 148#__utac_acc__Specification5_spec__2_returnLabel#1true assume { :end_inline___utac_acc__Specification5_spec__2 } true; 84#L247true assume !(0 != ~pumpRunning~0); 145#L247-2true assume !(0 != ~systemActive~0); 8#L254-1true assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 136#getWaterLevel_returnLabel#1true __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 149#L872true assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 54#L872-1true assume { :end_inline___utac_acc__Specification5_spec__3 } true; 137#timeShift_returnLabel#1true assume { :end_inline_timeShift } true; 177#L174-2true [2022-12-13 13:25:12,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:12,482 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2022-12-13 13:25:12,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:12,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493508106] [2022-12-13 13:25:12,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:12,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:12,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:12,564 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:12,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:12,596 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:12,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:12,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1566070476, now seen corresponding path program 1 times [2022-12-13 13:25:12,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:12,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192498917] [2022-12-13 13:25:12,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:12,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:12,607 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:12,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:12,617 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:12,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:12,619 INFO L85 PathProgramCache]: Analyzing trace with hash 226718069, now seen corresponding path program 1 times [2022-12-13 13:25:12,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:12,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553901268] [2022-12-13 13:25:12,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:12,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:12,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:12,795 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:12,796 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553901268] [2022-12-13 13:25:12,796 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553901268] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:12,796 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:12,797 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:12,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502908171] [2022-12-13 13:25:12,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:12,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:12,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 13:25:12,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 13:25:12,944 INFO L87 Difference]: Start difference. First operand has 200 states, 199 states have (on average 1.35678391959799) internal successors, (270), 199 states have internal predecessors, (270), 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 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 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) [2022-12-13 13:25:13,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:13,066 INFO L93 Difference]: Finished difference Result 459 states and 600 transitions. [2022-12-13 13:25:13,067 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 459 states and 600 transitions. [2022-12-13 13:25:13,076 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 297 [2022-12-13 13:25:13,083 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 459 states to 429 states and 570 transitions. [2022-12-13 13:25:13,084 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 429 [2022-12-13 13:25:13,085 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 429 [2022-12-13 13:25:13,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 429 states and 570 transitions. [2022-12-13 13:25:13,088 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,088 INFO L218 hiAutomatonCegarLoop]: Abstraction has 429 states and 570 transitions. [2022-12-13 13:25:13,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states and 570 transitions. [2022-12-13 13:25:13,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 248. [2022-12-13 13:25:13,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 248 states have (on average 1.3266129032258065) internal successors, (329), 247 states have internal predecessors, (329), 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) [2022-12-13 13:25:13,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 329 transitions. [2022-12-13 13:25:13,124 INFO L240 hiAutomatonCegarLoop]: Abstraction has 248 states and 329 transitions. [2022-12-13 13:25:13,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:25:13,127 INFO L428 stractBuchiCegarLoop]: Abstraction has 248 states and 329 transitions. [2022-12-13 13:25:13,127 INFO L335 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-12-13 13:25:13,127 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 248 states and 329 transitions. [2022-12-13 13:25:13,129 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 172 [2022-12-13 13:25:13,129 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:13,129 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:13,129 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,129 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] [2022-12-13 13:25:13,130 INFO L748 eck$LassoCheckResult]: Stem: 733#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 734#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 727#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 728#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 835#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 836#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 810#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 811#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 796#L174-2 [2022-12-13 13:25:13,130 INFO L750 eck$LassoCheckResult]: Loop: 796#L174-2 assume !false; 683#L175 assume test_~splverifierCounter~0#1 < 4; 684#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 756#L184 assume !(0 != test_~tmp~0#1); 819#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 820#L194 assume !(0 != test_~tmp___0~0#1); 708#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 855#L204 assume 0 != test_~tmp___2~0#1; 695#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 860#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 823#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 824#L247 assume !(0 != ~pumpRunning~0); 815#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 793#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 737#L279-2 assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true; 677#processEnvironment__wrappee__base_returnLabel#4 assume { :end_inline_processEnvironment__wrappee__base } true; 678#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 723#L305-1 assume { :end_inline_processEnvironment } true; 697#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 698#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 794#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 716#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 795#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 796#L174-2 [2022-12-13 13:25:13,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,130 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2022-12-13 13:25:13,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,131 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735537225] [2022-12-13 13:25:13,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,137 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,143 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1867743236, now seen corresponding path program 1 times [2022-12-13 13:25:13,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720519505] [2022-12-13 13:25:13,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:13,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:13,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:13,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720519505] [2022-12-13 13:25:13,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720519505] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:13,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:13,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 13:25:13,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809826877] [2022-12-13 13:25:13,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:13,162 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:13,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:13,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:25:13,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:25:13,163 INFO L87 Difference]: Start difference. First operand 248 states and 329 transitions. cyclomatic complexity: 84 Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:25:13,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:13,220 INFO L93 Difference]: Finished difference Result 313 states and 398 transitions. [2022-12-13 13:25:13,220 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 313 states and 398 transitions. [2022-12-13 13:25:13,222 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2022-12-13 13:25:13,233 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 313 states to 313 states and 398 transitions. [2022-12-13 13:25:13,234 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 313 [2022-12-13 13:25:13,234 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 313 [2022-12-13 13:25:13,234 INFO L73 IsDeterministic]: Start isDeterministic. Operand 313 states and 398 transitions. [2022-12-13 13:25:13,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,236 INFO L218 hiAutomatonCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-12-13 13:25:13,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states and 398 transitions. [2022-12-13 13:25:13,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2022-12-13 13:25:13,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 313 states have (on average 1.2715654952076678) internal successors, (398), 312 states have internal predecessors, (398), 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) [2022-12-13 13:25:13,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 398 transitions. [2022-12-13 13:25:13,248 INFO L240 hiAutomatonCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-12-13 13:25:13,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:25:13,249 INFO L428 stractBuchiCegarLoop]: Abstraction has 313 states and 398 transitions. [2022-12-13 13:25:13,249 INFO L335 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2022-12-13 13:25:13,249 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 313 states and 398 transitions. [2022-12-13 13:25:13,251 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 221 [2022-12-13 13:25:13,251 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:13,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:13,252 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,252 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,252 INFO L748 eck$LassoCheckResult]: Stem: 1299#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 1300#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 1297#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 1298#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 1415#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 1416#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 1385#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 1386#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 1451#L174-2 [2022-12-13 13:25:13,253 INFO L750 eck$LassoCheckResult]: Loop: 1451#L174-2 assume !false; 1521#L175 assume test_~splverifierCounter~0#1 < 4; 1522#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 1555#L184 assume !(0 != test_~tmp~0#1); 1553#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 1551#L194 assume !(0 != test_~tmp___0~0#1); 1534#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 1532#L204 assume 0 != test_~tmp___2~0#1; 1531#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 1530#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 1400#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 1401#L247 assume !(0 != ~pumpRunning~0); 1392#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 1370#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 1303#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#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; 1304#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 1322#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 1287#L425-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 1288#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 1366#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 1419#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 1314#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 1315#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 1289#L305-1 assume { :end_inline_processEnvironment } true; 1259#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 1260#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 1367#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 1524#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 1523#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 1451#L174-2 [2022-12-13 13:25:13,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,253 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2022-12-13 13:25:13,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666832415] [2022-12-13 13:25:13,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,261 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,269 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash 849815258, now seen corresponding path program 1 times [2022-12-13 13:25:13,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1007899312] [2022-12-13 13:25:13,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:13,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:13,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:13,313 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1007899312] [2022-12-13 13:25:13,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1007899312] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:13,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:13,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:25:13,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090220925] [2022-12-13 13:25:13,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:13,315 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:13,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:13,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:25:13,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:25:13,315 INFO L87 Difference]: Start difference. First operand 313 states and 398 transitions. cyclomatic complexity: 88 Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 4 states have internal predecessors, (29), 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) [2022-12-13 13:25:13,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:13,379 INFO L93 Difference]: Finished difference Result 612 states and 770 transitions. [2022-12-13 13:25:13,379 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 612 states and 770 transitions. [2022-12-13 13:25:13,382 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 438 [2022-12-13 13:25:13,384 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 612 states to 612 states and 770 transitions. [2022-12-13 13:25:13,384 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 612 [2022-12-13 13:25:13,384 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 612 [2022-12-13 13:25:13,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 612 states and 770 transitions. [2022-12-13 13:25:13,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,386 INFO L218 hiAutomatonCegarLoop]: Abstraction has 612 states and 770 transitions. [2022-12-13 13:25:13,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states and 770 transitions. [2022-12-13 13:25:13,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 325. [2022-12-13 13:25:13,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 325 states have (on average 1.2615384615384615) internal successors, (410), 324 states have internal predecessors, (410), 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) [2022-12-13 13:25:13,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 410 transitions. [2022-12-13 13:25:13,397 INFO L240 hiAutomatonCegarLoop]: Abstraction has 325 states and 410 transitions. [2022-12-13 13:25:13,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:25:13,398 INFO L428 stractBuchiCegarLoop]: Abstraction has 325 states and 410 transitions. [2022-12-13 13:25:13,398 INFO L335 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2022-12-13 13:25:13,398 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 325 states and 410 transitions. [2022-12-13 13:25:13,400 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 229 [2022-12-13 13:25:13,400 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:13,400 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:13,401 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,401 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,401 INFO L748 eck$LassoCheckResult]: Stem: 2233#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 2234#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 2231#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 2232#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 2353#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 2354#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 2322#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 2323#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 2305#L174-2 [2022-12-13 13:25:13,401 INFO L750 eck$LassoCheckResult]: Loop: 2305#L174-2 assume !false; 2183#L175 assume test_~splverifierCounter~0#1 < 4; 2184#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 2260#L184 assume !(0 != test_~tmp~0#1); 2503#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 2501#L194 assume !(0 != test_~tmp___0~0#1); 2499#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 2381#L204 assume 0 != test_~tmp___2~0#1; 2195#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 2497#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 2339#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 2340#L247 assume !(0 != ~pumpRunning~0); 2422#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 2302#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 2237#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#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; 2238#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 2256#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 2220#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 2221#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 2301#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 2359#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 2248#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 2249#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 2225#L305-1 assume { :end_inline_processEnvironment } true; 2226#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 2496#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 2494#L872 assume !(2 != __utac_acc__Specification5_spec__3_~tmp~9#1); 2493#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 2304#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 2305#L174-2 [2022-12-13 13:25:13,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,402 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2022-12-13 13:25:13,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696555522] [2022-12-13 13:25:13,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,415 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,416 INFO L85 PathProgramCache]: Analyzing trace with hash 591649820, now seen corresponding path program 1 times [2022-12-13 13:25:13,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132726830] [2022-12-13 13:25:13,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:13,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:13,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:13,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132726830] [2022-12-13 13:25:13,480 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132726830] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:13,480 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:13,481 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:13,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14679525] [2022-12-13 13:25:13,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:13,481 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:13,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:13,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:25:13,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:25:13,482 INFO L87 Difference]: Start difference. First operand 325 states and 410 transitions. cyclomatic complexity: 88 Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 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) [2022-12-13 13:25:13,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:13,660 INFO L93 Difference]: Finished difference Result 1408 states and 1768 transitions. [2022-12-13 13:25:13,660 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 1408 states and 1768 transitions. [2022-12-13 13:25:13,669 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 979 [2022-12-13 13:25:13,676 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 1408 states to 1408 states and 1768 transitions. [2022-12-13 13:25:13,676 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 1408 [2022-12-13 13:25:13,677 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 1408 [2022-12-13 13:25:13,678 INFO L73 IsDeterministic]: Start isDeterministic. Operand 1408 states and 1768 transitions. [2022-12-13 13:25:13,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,680 INFO L218 hiAutomatonCegarLoop]: Abstraction has 1408 states and 1768 transitions. [2022-12-13 13:25:13,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states and 1768 transitions. [2022-12-13 13:25:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 627. [2022-12-13 13:25:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 627 states, 627 states have (on average 1.251993620414673) internal successors, (785), 626 states have internal predecessors, (785), 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) [2022-12-13 13:25:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 627 states to 627 states and 785 transitions. [2022-12-13 13:25:13,693 INFO L240 hiAutomatonCegarLoop]: Abstraction has 627 states and 785 transitions. [2022-12-13 13:25:13,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 13:25:13,694 INFO L428 stractBuchiCegarLoop]: Abstraction has 627 states and 785 transitions. [2022-12-13 13:25:13,694 INFO L335 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2022-12-13 13:25:13,694 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 627 states and 785 transitions. [2022-12-13 13:25:13,696 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 448 [2022-12-13 13:25:13,696 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:13,696 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:13,696 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,696 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] [2022-12-13 13:25:13,697 INFO L748 eck$LassoCheckResult]: Stem: 3988#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 3989#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 3982#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 3983#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 4122#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 4123#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 4086#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 4087#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 4176#L174-2 [2022-12-13 13:25:13,697 INFO L750 eck$LassoCheckResult]: Loop: 4176#L174-2 assume !false; 4375#L175 assume test_~splverifierCounter~0#1 < 4; 4376#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 4533#L184 assume !(0 != test_~tmp~0#1); 4531#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 4529#L194 assume !(0 != test_~tmp___0~0#1); 4526#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 4523#L204 assume 0 != test_~tmp___2~0#1; 4509#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4507#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 4505#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 4428#L247 assume !(0 != ~pumpRunning~0); 4094#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 4063#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 3992#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#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; 3993#L141-1 assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~2#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 4169#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 4412#L425-3 assume !(0 != isHighWaterLevel_~tmp~4#1);isHighWaterLevel_~tmp___0~1#1 := 1; 3976#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 4062#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 4128#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 4129#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 4536#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 4535#L305-1 assume { :end_inline_processEnvironment } true; 4392#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 4393#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 4388#L872 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 4389#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 4385#L876 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 4384#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 4380#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 4176#L174-2 [2022-12-13 13:25:13,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,697 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2022-12-13 13:25:13,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,697 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053257588] [2022-12-13 13:25:13,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,702 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,706 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,706 INFO L85 PathProgramCache]: Analyzing trace with hash -411487021, now seen corresponding path program 1 times [2022-12-13 13:25:13,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,706 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [789258015] [2022-12-13 13:25:13,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:25:13,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:25:13,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:25:13,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [789258015] [2022-12-13 13:25:13,748 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [789258015] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:25:13,748 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:25:13,748 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 13:25:13,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597114990] [2022-12-13 13:25:13,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:25:13,749 INFO L765 eck$LassoCheckResult]: loop already infeasible [2022-12-13 13:25:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:25:13,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 13:25:13,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:25:13,750 INFO L87 Difference]: Start difference. First operand 627 states and 785 transitions. cyclomatic complexity: 162 Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2022-12-13 13:25:13,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:25:13,871 INFO L93 Difference]: Finished difference Result 2028 states and 2516 transitions. [2022-12-13 13:25:13,871 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 2028 states and 2516 transitions. [2022-12-13 13:25:13,887 INFO L131 ngComponentsAnalysis]: Automaton has 10 accepting balls. 1488 [2022-12-13 13:25:13,898 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 2028 states to 2028 states and 2516 transitions. [2022-12-13 13:25:13,899 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 2028 [2022-12-13 13:25:13,901 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 2028 [2022-12-13 13:25:13,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2028 states and 2516 transitions. [2022-12-13 13:25:13,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:25:13,904 INFO L218 hiAutomatonCegarLoop]: Abstraction has 2028 states and 2516 transitions. [2022-12-13 13:25:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2028 states and 2516 transitions. [2022-12-13 13:25:13,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2028 to 663. [2022-12-13 13:25:13,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 663 states have (on average 1.2383107088989442) internal successors, (821), 662 states have internal predecessors, (821), 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) [2022-12-13 13:25:13,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 821 transitions. [2022-12-13 13:25:13,923 INFO L240 hiAutomatonCegarLoop]: Abstraction has 663 states and 821 transitions. [2022-12-13 13:25:13,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 13:25:13,924 INFO L428 stractBuchiCegarLoop]: Abstraction has 663 states and 821 transitions. [2022-12-13 13:25:13,924 INFO L335 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2022-12-13 13:25:13,924 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 663 states and 821 transitions. [2022-12-13 13:25:13,927 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 472 [2022-12-13 13:25:13,927 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-12-13 13:25:13,927 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-12-13 13:25:13,927 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:25:13,927 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] [2022-12-13 13:25:13,928 INFO L748 eck$LassoCheckResult]: Stem: 6658#$Ultimate##0 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);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4; 6659#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~11#1, main_~tmp~10#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 6652#select_helpers_returnLabel#1 assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 6653#select_features_returnLabel#1 assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~13#1;havoc valid_product_~retValue_acc~13#1;valid_product_~retValue_acc~13#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~13#1; 6806#valid_product_returnLabel#1 main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 6807#L980 assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 6762#setup_returnLabel#1 assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0; 6763#__utac_acc__Specification5_spec__1_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 6880#L174-2 [2022-12-13 13:25:13,928 INFO L750 eck$LassoCheckResult]: Loop: 6880#L174-2 assume !false; 7212#L175 assume test_~splverifierCounter~0#1 < 4; 7213#L176 test_~tmp~0#1 := test_#t~nondet9#1;havoc test_#t~nondet9#1; 7251#L184 assume !(0 != test_~tmp~0#1); 7144#L184-2 test_~tmp___0~0#1 := test_#t~nondet10#1;havoc test_#t~nondet10#1; 7140#L194 assume !(0 != test_~tmp___0~0#1); 7136#L194-2 test_~tmp___2~0#1 := test_#t~nondet11#1;havoc test_#t~nondet11#1; 7127#L204 assume 0 != test_~tmp___2~0#1; 7086#L210-2 assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret50#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 6868#isPumpRunning_returnLabel#1 __utac_acc__Specification5_spec__2_#t~ret50#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret50#1;havoc __utac_acc__Specification5_spec__2_#t~ret50#1; 6787#__utac_acc__Specification5_spec__2_returnLabel#1 assume { :end_inline___utac_acc__Specification5_spec__2 } true; 6788#L247 assume !(0 != ~pumpRunning~0); 6772#L247-2 assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret14#1, processEnvironment_~tmp~2#1;havoc processEnvironment_~tmp~2#1; 6773#L305 assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1; 6662#L279-2 assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret25#1, isHighWaterLevel_~retValue_acc~6#1, isHighWaterLevel_~tmp~4#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~6#1;havoc isHighWaterLevel_~tmp~4#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; 6663#L141-1 assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~2#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~2#1; 6866#isHighWaterSensorDry_returnLabel#2 isHighWaterLevel_#t~ret25#1 := isHighWaterSensorDry_#res#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~4#1 := isHighWaterLevel_#t~ret25#1;havoc isHighWaterLevel_#t~ret25#1; 6645#L425-3 assume 0 != isHighWaterLevel_~tmp~4#1;isHighWaterLevel_~tmp___0~1#1 := 0; 6646#L425-5 isHighWaterLevel_~retValue_acc~6#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~6#1; 6931#isHighWaterLevel_returnLabel#2 processEnvironment__wrappee__highWaterSensor_#t~ret13#1 := isHighWaterLevel_#res#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret13#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret13#1; 6910#L283-3 assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true; 6911#processEnvironment__wrappee__base_returnLabel#3 assume { :end_inline_processEnvironment__wrappee__base } true; 6712#L279-3 assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true; 6713#L305-1 assume { :end_inline_processEnvironment } true; 7230#L254-1 assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret51#1, __utac_acc__Specification5_spec__3_#t~ret52#1, __utac_acc__Specification5_spec__3_~tmp~9#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~9#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#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; 7228#getWaterLevel_returnLabel#1 __utac_acc__Specification5_spec__3_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~9#1 := __utac_acc__Specification5_spec__3_#t~ret51#1;havoc __utac_acc__Specification5_spec__3_#t~ret51#1; 7226#L872 assume 2 != __utac_acc__Specification5_spec__3_~tmp~9#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~5#1;havoc isPumpRunning_~retValue_acc~5#1;isPumpRunning_~retValue_acc~5#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~5#1; 7225#isPumpRunning_returnLabel#2 __utac_acc__Specification5_spec__3_#t~ret52#1 := isPumpRunning_#res#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret52#1;havoc __utac_acc__Specification5_spec__3_#t~ret52#1; 7224#L876 assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1); 7221#L872-1 assume { :end_inline___utac_acc__Specification5_spec__3 } true; 7219#timeShift_returnLabel#1 assume { :end_inline_timeShift } true; 6880#L174-2 [2022-12-13 13:25:13,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,928 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2022-12-13 13:25:13,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020998232] [2022-12-13 13:25:13,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,933 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,936 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1620698583, now seen corresponding path program 1 times [2022-12-13 13:25:13,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975416089] [2022-12-13 13:25:13,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,946 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:13,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:25:13,947 INFO L85 PathProgramCache]: Analyzing trace with hash 808658382, now seen corresponding path program 1 times [2022-12-13 13:25:13,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:25:13,947 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868666033] [2022-12-13 13:25:13,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:25:13,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:25:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:13,961 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:25:14,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:14,787 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:25:14,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:25:14,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 13.12 01:25:14 BoogieIcfgContainer [2022-12-13 13:25:14,833 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-12-13 13:25:14,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:25:14,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:25:14,834 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:25:14,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:25:12" (3/4) ... [2022-12-13 13:25:14,837 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-12-13 13:25:14,876 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 13:25:14,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:25:14,877 INFO L158 Benchmark]: Toolchain (without parser) took 3378.26ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.7MB in the beginning and 99.4MB in the end (delta: 24.3MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,877 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:25:14,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.75ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 104.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,877 INFO L158 Benchmark]: Boogie Procedure Inliner took 43.12ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 101.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,877 INFO L158 Benchmark]: Boogie Preprocessor took 26.46ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 98.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,878 INFO L158 Benchmark]: RCFGBuilder took 528.49ms. Allocated memory is still 159.4MB. Free memory was 98.3MB in the beginning and 128.9MB in the end (delta: -30.6MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,878 INFO L158 Benchmark]: BuchiAutomizer took 2449.01ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 128.8MB in the beginning and 102.6MB in the end (delta: 26.3MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,878 INFO L158 Benchmark]: Witness Printer took 42.25ms. Allocated memory is still 192.9MB. Free memory was 102.6MB in the beginning and 99.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:25:14,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 159.4MB. Free memory is still 135.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 284.75ms. Allocated memory is still 159.4MB. Free memory was 123.4MB in the beginning and 104.6MB in the end (delta: 18.8MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 43.12ms. Allocated memory is still 159.4MB. Free memory was 104.6MB in the beginning and 101.0MB in the end (delta: 3.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.46ms. Allocated memory is still 159.4MB. Free memory was 101.0MB in the beginning and 98.3MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 528.49ms. Allocated memory is still 159.4MB. Free memory was 98.3MB in the beginning and 128.9MB in the end (delta: -30.6MB). Peak memory consumption was 34.3MB. Max. memory is 16.1GB. * BuchiAutomizer took 2449.01ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 128.8MB in the beginning and 102.6MB in the end (delta: 26.3MB). Peak memory consumption was 58.8MB. Max. memory is 16.1GB. * Witness Printer took 42.25ms. Allocated memory is still 192.9MB. Free memory was 102.6MB in the beginning and 99.4MB 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 5 terminating modules (5 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.5 modules have a trivial ranking function, the largest among these consists of 6 locations. The remainder module has 663 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.3s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 1.5s. Construction of modules took 0.2s. Büchi inclusion checks took 0.5s. Highest rank in rank-based complementation 0. Minimization of det autom 5. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 2614 StatesRemovedByMinimization, 4 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, 3621 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3621 mSDsluCounter, 5461 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3757 mSDsCounter, 94 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 386 IncrementalHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 94 mSolverCounterUnsat, 1704 mSDtfsCounter, 386 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI4 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: 174]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 174]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L58] int waterLevel = 1; [L59] int methaneLevelCritical = 0; [L235] int pumpRunning = 0; [L236] int systemActive = 1; [L639] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L845] int switchedOnBeforeTS ; [L894] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L971] int retValue_acc ; [L972] int tmp ; [L976] FCALL select_helpers() [L977] FCALL select_features() [L978] CALL, EXPR valid_product() [L1020] int retValue_acc ; [L1023] retValue_acc = 1 [L1024] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L978] RET, EXPR valid_product() [L978] tmp = valid_product() [L980] COND TRUE \read(tmp) [L982] FCALL setup() [L983] CALL runTest() [L961] CALL __utac_acc__Specification5_spec__1() [L850] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L961] RET __utac_acc__Specification5_spec__1() [L962] CALL test() [L165] int splverifierCounter ; [L166] int tmp ; [L167] int tmp___0 ; [L168] int tmp___1 ; [L169] int tmp___2 ; [L172] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L174] COND TRUE 1 [L176] COND TRUE splverifierCounter < 4 [L182] tmp = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp)) [L192] tmp___0 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___0)) [L202] tmp___2 = __VERIFIER_nondet_int() [L204] COND TRUE \read(tmp___2) [L219] CALL timeShift() [L245] CALL __utac_acc__Specification5_spec__2() [L859] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L859] RET, EXPR isPumpRunning() [L859] switchedOnBeforeTS = isPumpRunning() [L245] RET __utac_acc__Specification5_spec__2() [L247] COND FALSE !(\read(pumpRunning)) [L254] COND TRUE \read(systemActive) [L256] CALL processEnvironment() [L302] int tmp ; [L305] COND FALSE !(\read(pumpRunning)) [L320] CALL processEnvironment__wrappee__highWaterSensor() [L276] int tmp ; [L279] COND TRUE ! pumpRunning [L281] CALL, EXPR isHighWaterLevel() [L417] int retValue_acc ; [L418] int tmp ; [L419] int tmp___0 ; [L423] CALL, EXPR isHighWaterSensorDry() [L138] int retValue_acc ; [L141] COND TRUE waterLevel < 2 [L142] retValue_acc = 1 [L143] return (retValue_acc); [L423] RET, EXPR isHighWaterSensorDry() [L423] tmp = isHighWaterSensorDry() [L425] COND TRUE \read(tmp) [L426] tmp___0 = 0 [L430] retValue_acc = tmp___0 [L431] return (retValue_acc); [L281] RET, EXPR isHighWaterLevel() [L281] tmp = isHighWaterLevel() [L283] COND FALSE !(\read(tmp)) [L289] FCALL processEnvironment__wrappee__base() [L320] RET processEnvironment__wrappee__highWaterSensor() [L256] RET processEnvironment() [L262] CALL __utac_acc__Specification5_spec__3() [L865] int tmp ; [L866] int tmp___0 ; [L870] CALL, EXPR getWaterLevel() [L129] int retValue_acc ; [L132] retValue_acc = waterLevel [L133] return (retValue_acc); [L870] RET, EXPR getWaterLevel() [L870] tmp = getWaterLevel() [L872] COND TRUE tmp != 2 [L874] CALL, EXPR isPumpRunning() [L372] int retValue_acc ; [L375] retValue_acc = pumpRunning [L376] return (retValue_acc); [L874] RET, EXPR isPumpRunning() [L874] tmp___0 = isPumpRunning() [L876] COND FALSE !(\read(tmp___0)) [L262] RET __utac_acc__Specification5_spec__3() [L219] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2022-12-13 13:25:14,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3be5c672-3c61-44e9-a20b-f8f681196998/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)