./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1 --witnessprinter.witness.filename witness --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 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 14:05:39,880 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 14:05:39,947 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 14:05:39,952 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 14:05:39,952 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 14:05:39,977 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 14:05:39,978 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 14:05:39,978 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 14:05:39,979 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 14:05:39,979 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 14:05:39,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 14:05:39,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 14:05:39,979 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 14:05:39,979 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 14:05:39,980 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 14:05:39,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 14:05:39,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 14:05:39,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 14:05:39,982 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 14:05:39,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 14:05:39,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 14:05:39,982 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 14:05:39,982 INFO L153 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness 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 -> 9e826f48819dedbf1a290c3ced69eb835c065ed69febc6d0054f416e73afcb1c [2024-12-02 14:05:40,258 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 14:05:40,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 14:05:40,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 14:05:40,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 14:05:40,272 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 14:05:40,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2024-12-02 14:05:43,291 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/data/274c17e79/b1333c3298a94c6ab983313502fc2a51/FLAG015ccf6f5 [2024-12-02 14:05:43,540 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 14:05:43,541 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/sv-benchmarks/c/product-lines/minepump_spec5_product55.cil.c [2024-12-02 14:05:43,556 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/data/274c17e79/b1333c3298a94c6ab983313502fc2a51/FLAG015ccf6f5 [2024-12-02 14:05:43,572 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/data/274c17e79/b1333c3298a94c6ab983313502fc2a51 [2024-12-02 14:05:43,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 14:05:43,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 14:05:43,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 14:05:43,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 14:05:43,583 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 14:05:43,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:05:43" (1/1) ... [2024-12-02 14:05:43,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a3ba46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:43, skipping insertion in model container [2024-12-02 14:05:43,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 02:05:43" (1/1) ... [2024-12-02 14:05:43,621 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 14:05:43,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:05:43,940 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 14:05:43,950 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-12-02 14:05:43,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] [2024-12-02 14:05:43,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [521] [2024-12-02 14:05:43,952 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [556] [2024-12-02 14:05:43,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] [2024-12-02 14:05:43,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] [2024-12-02 14:05:43,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] [2024-12-02 14:05:43,953 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [988] [2024-12-02 14:05:44,012 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 14:05:44,035 INFO L204 MainTranslator]: Completed translation [2024-12-02 14:05:44,036 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44 WrapperNode [2024-12-02 14:05:44,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 14:05:44,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 14:05:44,037 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 14:05:44,037 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 14:05:44,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,108 INFO L138 Inliner]: procedures = 59, calls = 108, calls flagged for inlining = 61, calls inlined = 149, statements flattened = 996 [2024-12-02 14:05:44,108 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 14:05:44,109 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 14:05:44,109 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 14:05:44,109 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 14:05:44,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,125 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,141 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-12-02 14:05:44,141 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,141 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,152 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,154 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,167 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,172 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 14:05:44,173 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 14:05:44,173 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 14:05:44,173 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 14:05:44,174 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (1/1) ... [2024-12-02 14:05:44,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 14:05:44,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:44,214 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 14:05:44,217 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 14:05:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 14:05:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 14:05:44,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 14:05:44,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 14:05:44,334 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 14:05:44,336 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 14:05:45,031 INFO L? ?]: Removed 241 outVars from TransFormulas that were not future-live. [2024-12-02 14:05:45,031 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 14:05:45,049 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 14:05:45,049 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 14:05:45,050 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:05:45 BoogieIcfgContainer [2024-12-02 14:05:45,050 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 14:05:45,051 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 14:05:45,051 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 14:05:45,057 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 14:05:45,058 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:05:45,058 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 02:05:43" (1/3) ... [2024-12-02 14:05:45,059 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aaa864a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:05:45, skipping insertion in model container [2024-12-02 14:05:45,059 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:05:45,059 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 02:05:44" (2/3) ... [2024-12-02 14:05:45,060 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5aaa864a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 02:05:45, skipping insertion in model container [2024-12-02 14:05:45,060 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 14:05:45,060 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:05:45" (3/3) ... [2024-12-02 14:05:45,061 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product55.cil.c [2024-12-02 14:05:45,130 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 14:05:45,130 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 14:05:45,130 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 14:05:45,130 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 14:05:45,130 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 14:05:45,130 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 14:05:45,130 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 14:05:45,131 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 14:05:45,137 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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) [2024-12-02 14:05:45,163 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2024-12-02 14:05:45,164 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:45,164 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:45,169 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:45,169 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:45,170 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 14:05:45,170 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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) [2024-12-02 14:05:45,178 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 186 [2024-12-02 14:05:45,178 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:45,178 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:45,178 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:45,178 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:45,183 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:45,184 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:45,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:45,189 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 14:05:45,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:45,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715944102] [2024-12-02 14:05:45,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:45,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:45,290 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:45,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:45,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:45,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1304979874, now seen corresponding path program 1 times [2024-12-02 14:05:45,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:45,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506164970] [2024-12-02 14:05:45,331 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:45,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:45,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:45,341 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:45,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:45,352 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:45,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash 569038297, now seen corresponding path program 1 times [2024-12-02 14:05:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:45,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880594972] [2024-12-02 14:05:45,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:45,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:05:45,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880594972] [2024-12-02 14:05:45,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880594972] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:05:45,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1975268999] [2024-12-02 14:05:45,576 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:45,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:05:45,576 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:45,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:05:45,583 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 14:05:45,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:45,670 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 14:05:45,672 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:05:45,736 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:05:45,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1975268999] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:05:45,789 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:05:45,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 14:05:45,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426153875] [2024-12-02 14:05:45,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:05:45,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:05:45,911 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 14:05:45,911 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 14:05:45,914 INFO L87 Difference]: Start difference. First operand has 285 states, 284 states have (on average 1.3661971830985915) internal successors, (388), 284 states have internal predecessors, (388), 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 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2024-12-02 14:05:46,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:46,079 INFO L93 Difference]: Finished difference Result 621 states and 828 transitions. [2024-12-02 14:05:46,081 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 621 states and 828 transitions. [2024-12-02 14:05:46,091 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 403 [2024-12-02 14:05:46,103 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 621 states to 591 states and 798 transitions. [2024-12-02 14:05:46,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 591 [2024-12-02 14:05:46,105 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 591 [2024-12-02 14:05:46,106 INFO L73 IsDeterministic]: Start isDeterministic. Operand 591 states and 798 transitions. [2024-12-02 14:05:46,110 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:05:46,110 INFO L218 hiAutomatonCegarLoop]: Abstraction has 591 states and 798 transitions. [2024-12-02 14:05:46,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states and 798 transitions. [2024-12-02 14:05:46,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 328. [2024-12-02 14:05:46,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 328 states have (on average 1.3475609756097562) internal successors, (442), 327 states have internal predecessors, (442), 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) [2024-12-02 14:05:46,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 442 transitions. [2024-12-02 14:05:46,159 INFO L240 hiAutomatonCegarLoop]: Abstraction has 328 states and 442 transitions. [2024-12-02 14:05:46,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 14:05:46,164 INFO L425 stractBuchiCegarLoop]: Abstraction has 328 states and 442 transitions. [2024-12-02 14:05:46,164 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 14:05:46,164 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 328 states and 442 transitions. [2024-12-02 14:05:46,168 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 224 [2024-12-02 14:05:46,168 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:46,168 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:46,169 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:46,169 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] [2024-12-02 14:05:46,169 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:46,169 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret41#1, isMethaneAlarm_~retValue_acc~10#1;havoc isMethaneAlarm_~retValue_acc~10#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;isMethaneLevelCritical_~retValue_acc~6#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~6#1;" "isMethaneAlarm_#t~ret41#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~6#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~10#1 := isMethaneAlarm_#t~ret41#1;havoc isMethaneAlarm_#t~ret41#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~10#1;" "processEnvironment_#t~ret40#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret41#1, isMethaneAlarm_~retValue_acc~10#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~7#1 := processEnvironment_#t~ret40#1;havoc processEnvironment_#t~ret40#1;" "assume 0 != processEnvironment_~tmp~7#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:46,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,170 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 14:05:46,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401763818] [2024-12-02 14:05:46,170 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,181 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:46,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,191 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:46,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash -1552427445, now seen corresponding path program 1 times [2024-12-02 14:05:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696674911] [2024-12-02 14:05:46,193 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,221 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:05:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696674911] [2024-12-02 14:05:46,221 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696674911] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:05:46,221 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910797685] [2024-12-02 14:05:46,221 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:05:46,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:46,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:05:46,227 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 14:05:46,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,286 INFO L256 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 14:05:46,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:05:46,297 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:05:46,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910797685] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:05:46,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:05:46,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 14:05:46,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113236183] [2024-12-02 14:05:46,306 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:05:46,307 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:05:46,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:05:46,308 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 14:05:46,308 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 14:05:46,308 INFO L87 Difference]: Start difference. First operand 328 states and 442 transitions. cyclomatic complexity: 117 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) [2024-12-02 14:05:46,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:46,434 INFO L93 Difference]: Finished difference Result 340 states and 434 transitions. [2024-12-02 14:05:46,434 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 340 states and 434 transitions. [2024-12-02 14:05:46,438 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2024-12-02 14:05:46,439 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 340 states to 340 states and 434 transitions. [2024-12-02 14:05:46,439 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 340 [2024-12-02 14:05:46,440 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 340 [2024-12-02 14:05:46,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 340 states and 434 transitions. [2024-12-02 14:05:46,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:05:46,441 INFO L218 hiAutomatonCegarLoop]: Abstraction has 340 states and 434 transitions. [2024-12-02 14:05:46,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states and 434 transitions. [2024-12-02 14:05:46,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 340. [2024-12-02 14:05:46,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 340 states, 340 states have (on average 1.276470588235294) internal successors, (434), 339 states have internal predecessors, (434), 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) [2024-12-02 14:05:46,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 434 transitions. [2024-12-02 14:05:46,455 INFO L240 hiAutomatonCegarLoop]: Abstraction has 340 states and 434 transitions. [2024-12-02 14:05:46,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 14:05:46,457 INFO L425 stractBuchiCegarLoop]: Abstraction has 340 states and 434 transitions. [2024-12-02 14:05:46,457 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 14:05:46,457 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 340 states and 434 transitions. [2024-12-02 14:05:46,470 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 237 [2024-12-02 14:05:46,470 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:46,470 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:46,471 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:46,471 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:46,471 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:46,471 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:46,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,472 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 14:05:46,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411533480] [2024-12-02 14:05:46,473 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,481 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:46,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,491 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:46,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,492 INFO L85 PathProgramCache]: Analyzing trace with hash -22477907, now seen corresponding path program 1 times [2024-12-02 14:05:46,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514467633] [2024-12-02 14:05:46,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:05:46,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514467633] [2024-12-02 14:05:46,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514467633] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:05:46,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786685696] [2024-12-02 14:05:46,545 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,545 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:05:46,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:46,552 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:05:46,554 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 14:05:46,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,614 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-12-02 14:05:46,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:05:46,626 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:05:46,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786685696] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:05:46,636 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:05:46,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 14:05:46,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725505499] [2024-12-02 14:05:46,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:05:46,637 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:05:46,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:05:46,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-12-02 14:05:46,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-12-02 14:05:46,637 INFO L87 Difference]: Start difference. First operand 340 states and 434 transitions. cyclomatic complexity: 97 Second operand has 4 states, 4 states have (on average 7.5) internal successors, (30), 4 states have internal predecessors, (30), 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) [2024-12-02 14:05:46,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:46,784 INFO L93 Difference]: Finished difference Result 358 states and 452 transitions. [2024-12-02 14:05:46,784 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 358 states and 452 transitions. [2024-12-02 14:05:46,786 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2024-12-02 14:05:46,788 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 358 states to 358 states and 452 transitions. [2024-12-02 14:05:46,788 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 358 [2024-12-02 14:05:46,788 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 358 [2024-12-02 14:05:46,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 358 states and 452 transitions. [2024-12-02 14:05:46,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:05:46,789 INFO L218 hiAutomatonCegarLoop]: Abstraction has 358 states and 452 transitions. [2024-12-02 14:05:46,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states and 452 transitions. [2024-12-02 14:05:46,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 358. [2024-12-02 14:05:46,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358 states, 358 states have (on average 1.2625698324022345) internal successors, (452), 357 states have internal predecessors, (452), 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) [2024-12-02 14:05:46,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 358 states to 358 states and 452 transitions. [2024-12-02 14:05:46,800 INFO L240 hiAutomatonCegarLoop]: Abstraction has 358 states and 452 transitions. [2024-12-02 14:05:46,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-12-02 14:05:46,802 INFO L425 stractBuchiCegarLoop]: Abstraction has 358 states and 452 transitions. [2024-12-02 14:05:46,802 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 14:05:46,802 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 358 states and 452 transitions. [2024-12-02 14:05:46,804 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 249 [2024-12-02 14:05:46,804 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:46,804 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:46,805 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:46,805 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:46,805 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:46,805 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume !(~waterLevel~0 < 2);isHighWaterSensorDry_~retValue_acc~8#1 := 0;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1;" "assume !(0 != isHighWaterLevel_~tmp~8#1);isHighWaterLevel_~tmp___0~1#1 := 1;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:46,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,806 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-12-02 14:05:46,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452065969] [2024-12-02 14:05:46,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,813 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:46,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:46,821 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:46,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash -609283921, now seen corresponding path program 1 times [2024-12-02 14:05:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:46,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890390982] [2024-12-02 14:05:46,822 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:05:46,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890390982] [2024-12-02 14:05:46,895 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890390982] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:05:46,895 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [750025498] [2024-12-02 14:05:46,895 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:46,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:05:46,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:46,898 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:05:46,901 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-12-02 14:05:46,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:46,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 14:05:46,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:05:47,010 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:05:47,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [750025498] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:05:47,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:05:47,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 14:05:47,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129021625] [2024-12-02 14:05:47,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:05:47,041 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:05:47,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:05:47,042 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 14:05:47,042 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 14:05:47,042 INFO L87 Difference]: Start difference. First operand 358 states and 452 transitions. cyclomatic complexity: 97 Second operand has 8 states, 8 states have (on average 4.25) internal successors, (34), 8 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 14:05:47,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:47,263 INFO L93 Difference]: Finished difference Result 385 states and 479 transitions. [2024-12-02 14:05:47,263 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 385 states and 479 transitions. [2024-12-02 14:05:47,267 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2024-12-02 14:05:47,269 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 385 states to 385 states and 479 transitions. [2024-12-02 14:05:47,270 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 385 [2024-12-02 14:05:47,270 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 385 [2024-12-02 14:05:47,270 INFO L73 IsDeterministic]: Start isDeterministic. Operand 385 states and 479 transitions. [2024-12-02 14:05:47,271 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:05:47,271 INFO L218 hiAutomatonCegarLoop]: Abstraction has 385 states and 479 transitions. [2024-12-02 14:05:47,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 385 states and 479 transitions. [2024-12-02 14:05:47,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 385 to 385. [2024-12-02 14:05:47,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 385 states, 385 states have (on average 1.2441558441558442) internal successors, (479), 384 states have internal predecessors, (479), 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) [2024-12-02 14:05:47,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 385 states to 385 states and 479 transitions. [2024-12-02 14:05:47,281 INFO L240 hiAutomatonCegarLoop]: Abstraction has 385 states and 479 transitions. [2024-12-02 14:05:47,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:05:47,283 INFO L425 stractBuchiCegarLoop]: Abstraction has 385 states and 479 transitions. [2024-12-02 14:05:47,283 INFO L332 stractBuchiCegarLoop]: ======== Iteration 5 ============ [2024-12-02 14:05:47,283 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 385 states and 479 transitions. [2024-12-02 14:05:47,285 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 267 [2024-12-02 14:05:47,286 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:47,286 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:47,286 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:47,286 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] [2024-12-02 14:05:47,287 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:47,287 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~10#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:47,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:47,287 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 5 times [2024-12-02 14:05:47,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:47,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275559538] [2024-12-02 14:05:47,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:47,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,296 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,303 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:47,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:47,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1257385771, now seen corresponding path program 1 times [2024-12-02 14:05:47,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:47,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177935716] [2024-12-02 14:05:47,304 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:47,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:47,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 14:05:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177935716] [2024-12-02 14:05:47,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177935716] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 14:05:47,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [147723809] [2024-12-02 14:05:47,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 14:05:47,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 14:05:47,366 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 14:05:47,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-12-02 14:05:47,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 14:05:47,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 14:05:47,436 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 14:05:47,469 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 14:05:47,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [147723809] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 14:05:47,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 14:05:47,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 5 [2024-12-02 14:05:47,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110332215] [2024-12-02 14:05:47,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 14:05:47,508 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 14:05:47,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 14:05:47,508 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 14:05:47,508 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 14:05:47,509 INFO L87 Difference]: Start difference. First operand 385 states and 479 transitions. cyclomatic complexity: 97 Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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) [2024-12-02 14:05:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 14:05:47,673 INFO L93 Difference]: Finished difference Result 675 states and 824 transitions. [2024-12-02 14:05:47,673 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 675 states and 824 transitions. [2024-12-02 14:05:47,678 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 475 [2024-12-02 14:05:47,682 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 675 states to 675 states and 824 transitions. [2024-12-02 14:05:47,682 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 675 [2024-12-02 14:05:47,683 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 675 [2024-12-02 14:05:47,683 INFO L73 IsDeterministic]: Start isDeterministic. Operand 675 states and 824 transitions. [2024-12-02 14:05:47,684 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 14:05:47,684 INFO L218 hiAutomatonCegarLoop]: Abstraction has 675 states and 824 transitions. [2024-12-02 14:05:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 675 states and 824 transitions. [2024-12-02 14:05:47,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 675 to 675. [2024-12-02 14:05:47,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 675 states, 675 states have (on average 1.2207407407407407) internal successors, (824), 674 states have internal predecessors, (824), 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) [2024-12-02 14:05:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 675 states to 675 states and 824 transitions. [2024-12-02 14:05:47,699 INFO L240 hiAutomatonCegarLoop]: Abstraction has 675 states and 824 transitions. [2024-12-02 14:05:47,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 14:05:47,700 INFO L425 stractBuchiCegarLoop]: Abstraction has 675 states and 824 transitions. [2024-12-02 14:05:47,701 INFO L332 stractBuchiCegarLoop]: ======== Iteration 6 ============ [2024-12-02 14:05:47,701 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 675 states and 824 transitions. [2024-12-02 14:05:47,705 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 475 [2024-12-02 14:05:47,705 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 14:05:47,705 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 14:05:47,706 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:47,706 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 14:05:47,706 INFO L747 eck$LassoCheckResult]: Stem: "assume { :begin_inline_ULTIMATE.init } true;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int#0(48, 1, 0, 1);call write~init~int#0(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);~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret27#1, main_~retValue_acc~3#1, main_~tmp~3#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret27#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret27#1;havoc main_#t~ret27#1;" "assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet29#1, test_#t~nondet30#1, test_#t~nondet31#1, test_#t~nondet32#1, test_~splverifierCounter~0#1, test_~tmp~4#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~4#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 14:05:47,706 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet29#1;test_~tmp~4#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1;" "assume !(0 != test_~tmp~4#1);" "havoc test_#t~nondet30#1;test_~tmp___0~0#1 := test_#t~nondet30#1;havoc test_#t~nondet30#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet31#1;test_~tmp___2~0#1 := test_#t~nondet31#1;havoc test_#t~nondet31#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret52#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret52#1;havoc __utac_acc__Specification5_spec__2_#t~ret52#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret52#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~5#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~8#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~8#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~8#1;" "isHighWaterLevel_#t~ret50#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~8#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~8#1 := isHighWaterLevel_#t~ret50#1;havoc isHighWaterLevel_#t~ret50#1;" "assume 0 != isHighWaterLevel_~tmp~8#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret38#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret50#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~8#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~5#1 := processEnvironment__wrappee__highWaterSensor_#t~ret38#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~5#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret38#1, processEnvironment__wrappee__highWaterSensor_~tmp~5#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret39#1, processEnvironment__wrappee__lowWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret40#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;havoc __utac_acc__Specification5_spec__3_~tmp~10#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;havoc getWaterLevel_~retValue_acc~7#1;getWaterLevel_~retValue_acc~7#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~7#1;" "__utac_acc__Specification5_spec__3_#t~ret53#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~7#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~10#1 := __utac_acc__Specification5_spec__3_#t~ret53#1;havoc __utac_acc__Specification5_spec__3_#t~ret53#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~10#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret54#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~3#1 := __utac_acc__Specification5_spec__3_#t~ret54#1;havoc __utac_acc__Specification5_spec__3_#t~ret54#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~3#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret53#1, __utac_acc__Specification5_spec__3_#t~ret54#1, __utac_acc__Specification5_spec__3_~tmp~10#1, __utac_acc__Specification5_spec__3_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 14:05:47,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:47,707 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 6 times [2024-12-02 14:05:47,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:47,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975780429] [2024-12-02 14:05:47,707 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:47,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,715 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:47,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,722 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:47,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:47,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1440916806, now seen corresponding path program 1 times [2024-12-02 14:05:47,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:47,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378291430] [2024-12-02 14:05:47,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:47,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,732 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:47,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,740 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:47,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 14:05:47,741 INFO L85 PathProgramCache]: Analyzing trace with hash 2037474351, now seen corresponding path program 1 times [2024-12-02 14:05:47,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 14:05:47,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434695477] [2024-12-02 14:05:47,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 14:05:47,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 14:05:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,754 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:47,768 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 14:05:48,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:48,763 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 14:05:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 14:05:48,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 02:05:48 BoogieIcfgContainer [2024-12-02 14:05:48,820 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 14:05:48,821 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 14:05:48,821 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 14:05:48,821 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 14:05:48,822 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 02:05:45" (3/4) ... [2024-12-02 14:05:48,824 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 14:05:48,873 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 14:05:48,873 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 14:05:48,874 INFO L158 Benchmark]: Toolchain (without parser) took 5297.01ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 97.0MB in the end (delta: 19.3MB). Peak memory consumption was 20.4MB. Max. memory is 16.1GB. [2024-12-02 14:05:48,874 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:05:48,874 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.33ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 14:05:48,875 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.09ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 93.4MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:05:48,875 INFO L158 Benchmark]: Boogie Preprocessor took 63.61ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 88.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:05:48,875 INFO L158 Benchmark]: RCFGBuilder took 876.97ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 48.8MB in the end (delta: 40.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-12-02 14:05:48,876 INFO L158 Benchmark]: BuchiAutomizer took 3769.67ms. Allocated memory is still 142.6MB. Free memory was 48.8MB in the beginning and 101.1MB in the end (delta: -52.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 14:05:48,876 INFO L158 Benchmark]: Witness Printer took 51.69ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 97.0MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 14:05:48,878 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 117.4MB. Free memory is still 72.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 458.33ms. Allocated memory is still 142.6MB. Free memory was 116.0MB in the beginning and 97.2MB in the end (delta: 18.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.09ms. Allocated memory is still 142.6MB. Free memory was 97.2MB in the beginning and 93.4MB in the end (delta: 3.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 63.61ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 88.8MB in the end (delta: 4.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 876.97ms. Allocated memory is still 142.6MB. Free memory was 88.8MB in the beginning and 48.8MB in the end (delta: 40.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 3769.67ms. Allocated memory is still 142.6MB. Free memory was 48.8MB in the beginning and 101.1MB in the end (delta: -52.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 51.69ms. Allocated memory is still 142.6MB. Free memory was 101.1MB in the beginning and 97.0MB in the end (delta: 4.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [415] - GenericResultAtLocation [Line: 521]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [521] - GenericResultAtLocation [Line: 556]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [556] - GenericResultAtLocation [Line: 565]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [565] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [633] - GenericResultAtLocation [Line: 742]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [742] - GenericResultAtLocation [Line: 988]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [988] * 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 8 locations. The remainder module has 675 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.6s and 6 iterations. TraceHistogramMax:1. Analysis of lassos took 2.5s. Construction of modules took 0.5s. 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, 263 StatesRemovedByMinimization, 1 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, 1856 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1856 mSDsluCounter, 5145 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3610 mSDsCounter, 147 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 531 IncrementalHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 147 mSolverCounterUnsat, 1535 mSDtfsCounter, 531 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: 579]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L640] int waterLevel = 1; [L641] int methaneLevelCritical = 0; [L746] int pumpRunning = 0; [L747] int systemActive = 1; [L989] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L548] int retValue_acc ; [L551] retValue_acc = 1 [L552] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L994] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L756] CALL __utac_acc__Specification5_spec__2() [L1003] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1003] RET, EXPR isPumpRunning() [L1003] switchedOnBeforeTS = isPumpRunning() [L756] RET __utac_acc__Specification5_spec__2() [L758] COND FALSE !(\read(pumpRunning)) [L765] COND TRUE \read(systemActive) [L767] CALL processEnvironment() [L839] int tmp ; [L842] COND FALSE !(\read(pumpRunning)) [L857] CALL processEnvironment__wrappee__lowWaterSensor() [L813] int tmp ; [L816] COND FALSE !(\read(pumpRunning)) [L831] CALL processEnvironment__wrappee__highWaterSensor() [L787] int tmp ; [L790] COND TRUE ! pumpRunning [L792] CALL, EXPR isHighWaterLevel() [L936] int retValue_acc ; [L937] int tmp ; [L938] int tmp___0 ; [L942] CALL, EXPR isHighWaterSensorDry() [L720] int retValue_acc ; [L723] COND TRUE waterLevel < 2 [L724] retValue_acc = 1 [L725] return (retValue_acc); [L942] RET, EXPR isHighWaterSensorDry() [L942] tmp = isHighWaterSensorDry() [L944] COND TRUE \read(tmp) [L945] tmp___0 = 0 [L949] retValue_acc = tmp___0 [L950] return (retValue_acc); [L792] RET, EXPR isHighWaterLevel() [L792] tmp = isHighWaterLevel() [L794] COND FALSE !(\read(tmp)) [L800] FCALL processEnvironment__wrappee__base() [L831] RET processEnvironment__wrappee__highWaterSensor() [L857] RET processEnvironment__wrappee__lowWaterSensor() [L767] RET processEnvironment() [L773] CALL __utac_acc__Specification5_spec__3() [L1009] int tmp ; [L1010] int tmp___0 ; [L1014] CALL, EXPR getWaterLevel() [L711] int retValue_acc ; [L714] retValue_acc = waterLevel [L715] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp = getWaterLevel() [L1016] COND TRUE tmp != 2 [L1018] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___0 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___0)) [L773] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 579]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L416] int cleanupTimeShifts = 4; [L640] int waterLevel = 1; [L641] int methaneLevelCritical = 0; [L746] int pumpRunning = 0; [L747] int systemActive = 1; [L989] int switchedOnBeforeTS ; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L499] int retValue_acc ; [L500] int tmp ; [L504] FCALL select_helpers() [L505] FCALL select_features() [L506] CALL, EXPR valid_product() [L548] int retValue_acc ; [L551] retValue_acc = 1 [L552] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L506] RET, EXPR valid_product() [L506] tmp = valid_product() [L508] COND TRUE \read(tmp) [L510] FCALL setup() [L511] CALL runTest() [L489] CALL __utac_acc__Specification5_spec__1() [L994] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L489] RET __utac_acc__Specification5_spec__1() [L490] CALL test() [L568] int splverifierCounter ; [L569] int tmp ; [L570] int tmp___0 ; [L571] int tmp___1 ; [L572] int tmp___2 ; [L575] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L579] COND TRUE splverifierCounter < 4 [L585] tmp = __VERIFIER_nondet_int() [L587] COND FALSE !(\read(tmp)) [L595] tmp___0 = __VERIFIER_nondet_int() [L597] COND FALSE !(\read(tmp___0)) [L605] tmp___2 = __VERIFIER_nondet_int() [L607] COND TRUE \read(tmp___2) [L622] CALL timeShift() [L756] CALL __utac_acc__Specification5_spec__2() [L1003] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1003] RET, EXPR isPumpRunning() [L1003] switchedOnBeforeTS = isPumpRunning() [L756] RET __utac_acc__Specification5_spec__2() [L758] COND FALSE !(\read(pumpRunning)) [L765] COND TRUE \read(systemActive) [L767] CALL processEnvironment() [L839] int tmp ; [L842] COND FALSE !(\read(pumpRunning)) [L857] CALL processEnvironment__wrappee__lowWaterSensor() [L813] int tmp ; [L816] COND FALSE !(\read(pumpRunning)) [L831] CALL processEnvironment__wrappee__highWaterSensor() [L787] int tmp ; [L790] COND TRUE ! pumpRunning [L792] CALL, EXPR isHighWaterLevel() [L936] int retValue_acc ; [L937] int tmp ; [L938] int tmp___0 ; [L942] CALL, EXPR isHighWaterSensorDry() [L720] int retValue_acc ; [L723] COND TRUE waterLevel < 2 [L724] retValue_acc = 1 [L725] return (retValue_acc); [L942] RET, EXPR isHighWaterSensorDry() [L942] tmp = isHighWaterSensorDry() [L944] COND TRUE \read(tmp) [L945] tmp___0 = 0 [L949] retValue_acc = tmp___0 [L950] return (retValue_acc); [L792] RET, EXPR isHighWaterLevel() [L792] tmp = isHighWaterLevel() [L794] COND FALSE !(\read(tmp)) [L800] FCALL processEnvironment__wrappee__base() [L831] RET processEnvironment__wrappee__highWaterSensor() [L857] RET processEnvironment__wrappee__lowWaterSensor() [L767] RET processEnvironment() [L773] CALL __utac_acc__Specification5_spec__3() [L1009] int tmp ; [L1010] int tmp___0 ; [L1014] CALL, EXPR getWaterLevel() [L711] int retValue_acc ; [L714] retValue_acc = waterLevel [L715] return (retValue_acc); [L1014] RET, EXPR getWaterLevel() [L1014] tmp = getWaterLevel() [L1016] COND TRUE tmp != 2 [L1018] CALL, EXPR isPumpRunning() [L891] int retValue_acc ; [L894] retValue_acc = pumpRunning [L895] return (retValue_acc); [L1018] RET, EXPR isPumpRunning() [L1018] tmp___0 = isPumpRunning() [L1020] COND FALSE !(\read(tmp___0)) [L773] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 14:05:48,899 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-12-02 14:05:49,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-12-02 14:05:49,295 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 14:05:49,495 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 14:05:49,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 14:05:49,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0a3151f-db24-49bf-8d7e-1cb108342ecb/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)