./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.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_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/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_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/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_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/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 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 10:39:01,866 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 10:39:01,921 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 10:39:01,926 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 10:39:01,926 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 10:39:01,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 10:39:01,948 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 10:39:01,948 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 10:39:01,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 10:39:01,949 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 10:39:01,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 10:39:01,949 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 10:39:01,949 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 10:39:01,949 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 10:39:01,950 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 10:39:01,950 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 10:39:01,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 10:39:01,951 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 10:39:01,951 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 10:39:01,952 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 10:39:01,952 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 10:39:01,952 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_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/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 -> 86e7038cbd7079ed991c0d8924416f9d170b15a53536a052f3097e1f394171ef [2024-12-02 10:39:02,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 10:39:02,194 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 10:39:02,195 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 10:39:02,196 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 10:39:02,196 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 10:39:02,197 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-12-02 10:39:04,781 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/data/abecfadc8/cc4a651d97ff47f8bea20dcd13817367/FLAG4eadd84df [2024-12-02 10:39:05,013 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 10:39:05,014 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/sv-benchmarks/c/product-lines/minepump_spec5_product34.cil.c [2024-12-02 10:39:05,024 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/data/abecfadc8/cc4a651d97ff47f8bea20dcd13817367/FLAG4eadd84df [2024-12-02 10:39:05,365 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/data/abecfadc8/cc4a651d97ff47f8bea20dcd13817367 [2024-12-02 10:39:05,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 10:39:05,368 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 10:39:05,368 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 10:39:05,368 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 10:39:05,371 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 10:39:05,372 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,373 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5747372d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05, skipping insertion in model container [2024-12-02 10:39:05,373 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,400 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 10:39:05,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:39:05,613 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 10:39:05,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] [2024-12-02 10:39:05,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] [2024-12-02 10:39:05,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] [2024-12-02 10:39:05,667 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 10:39:05,684 INFO L204 MainTranslator]: Completed translation [2024-12-02 10:39:05,685 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05 WrapperNode [2024-12-02 10:39:05,685 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 10:39:05,686 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 10:39:05,686 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 10:39:05,686 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 10:39:05,692 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,703 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,728 INFO L138 Inliner]: procedures = 55, calls = 98, calls flagged for inlining = 51, calls inlined = 58, statements flattened = 380 [2024-12-02 10:39:05,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 10:39:05,728 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 10:39:05,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 10:39:05,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 10:39:05,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,740 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,755 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 10:39:05,755 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,755 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,761 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,762 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,767 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,768 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,769 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,772 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 10:39:05,772 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 10:39:05,772 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 10:39:05,773 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 10:39:05,773 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (1/1) ... [2024-12-02 10:39:05,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 10:39:05,789 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:39:05,800 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 10:39:05,802 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 10:39:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 10:39:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 10:39:05,826 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 10:39:05,826 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 10:39:05,886 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 10:39:05,887 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 10:39:06,181 INFO L? ?]: Removed 79 outVars from TransFormulas that were not future-live. [2024-12-02 10:39:06,181 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 10:39:06,191 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 10:39:06,191 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 10:39:06,192 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:06 BoogieIcfgContainer [2024-12-02 10:39:06,192 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 10:39:06,193 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 10:39:06,193 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 10:39:06,198 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 10:39:06,199 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:39:06,199 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 10:39:05" (1/3) ... [2024-12-02 10:39:06,200 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64b15b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:39:06, skipping insertion in model container [2024-12-02 10:39:06,200 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:39:06,201 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 10:39:05" (2/3) ... [2024-12-02 10:39:06,201 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@64b15b8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 10:39:06, skipping insertion in model container [2024-12-02 10:39:06,201 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 10:39:06,201 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:06" (3/3) ... [2024-12-02 10:39:06,202 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product34.cil.c [2024-12-02 10:39:06,247 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 10:39:06,248 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 10:39:06,248 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 10:39:06,248 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 10:39:06,248 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 10:39:06,248 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 10:39:06,248 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 10:39:06,248 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 10:39:06,253 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 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 10:39:06,271 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-12-02 10:39:06,272 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:39:06,272 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:39:06,278 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:06,278 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:06,278 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 10:39:06,279 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 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 10:39:06,284 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 73 [2024-12-02 10:39:06,284 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:39:06,284 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:39:06,285 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:06,285 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:06,289 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#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~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#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 10:39:06,289 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet36#1;test_~tmp___1~0#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#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~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:39:06,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:06,294 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-12-02 10:39:06,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:06,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619941980] [2024-12-02 10:39:06,300 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:06,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:06,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:06,388 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:06,421 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:06,424 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:06,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1256998312, now seen corresponding path program 1 times [2024-12-02 10:39:06,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:06,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226524515] [2024-12-02 10:39:06,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:06,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:06,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:06,436 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:06,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:06,446 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:06,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:06,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1698616577, now seen corresponding path program 1 times [2024-12-02 10:39:06,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:06,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302626802] [2024-12-02 10:39:06,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:06,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:06,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:06,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 10:39:06,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302626802] [2024-12-02 10:39:06,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302626802] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:39:06,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [79048932] [2024-12-02 10:39:06,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:06,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:39:06,687 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:39:06,690 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:39:06,694 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 10:39:06,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:06,776 INFO L256 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 10:39:06,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:39:06,845 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:39:06,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [79048932] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:39:06,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:39:06,900 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 10:39:06,900 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810469400] [2024-12-02 10:39:06,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:39:06,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 10:39:07,015 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 10:39:07,015 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 10:39:07,018 INFO L87 Difference]: Start difference. First operand has 117 states, 116 states have (on average 1.3706896551724137) internal successors, (159), 116 states have internal predecessors, (159), 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 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 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 10:39:07,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:39:07,092 INFO L93 Difference]: Finished difference Result 111 states and 142 transitions. [2024-12-02 10:39:07,093 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 142 transitions. [2024-12-02 10:39:07,096 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-12-02 10:39:07,102 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 101 states and 132 transitions. [2024-12-02 10:39:07,104 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 101 [2024-12-02 10:39:07,104 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 101 [2024-12-02 10:39:07,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 101 states and 132 transitions. [2024-12-02 10:39:07,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 10:39:07,105 INFO L218 hiAutomatonCegarLoop]: Abstraction has 101 states and 132 transitions. [2024-12-02 10:39:07,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states and 132 transitions. [2024-12-02 10:39:07,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 101. [2024-12-02 10:39:07,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 101 states, 101 states have (on average 1.306930693069307) internal successors, (132), 100 states have internal predecessors, (132), 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 10:39:07,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 132 transitions. [2024-12-02 10:39:07,131 INFO L240 hiAutomatonCegarLoop]: Abstraction has 101 states and 132 transitions. [2024-12-02 10:39:07,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:39:07,135 INFO L425 stractBuchiCegarLoop]: Abstraction has 101 states and 132 transitions. [2024-12-02 10:39:07,136 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 10:39:07,136 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 101 states and 132 transitions. [2024-12-02 10:39:07,137 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 67 [2024-12-02 10:39:07,137 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:39:07,137 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:39:07,138 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:07,138 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] [2024-12-02 10:39:07,138 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#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~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#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 10:39:07,139 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#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~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:39:07,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,139 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-12-02 10:39:07,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772164089] [2024-12-02 10:39:07,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,151 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,161 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:07,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1774444666, now seen corresponding path program 1 times [2024-12-02 10:39:07,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185377921] [2024-12-02 10:39:07,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:07,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 10:39:07,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185377921] [2024-12-02 10:39:07,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185377921] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:39:07,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582311918] [2024-12-02 10:39:07,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:39:07,186 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:39:07,188 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:39:07,193 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 10:39:07,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:07,237 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-12-02 10:39:07,238 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:39:07,246 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:39:07,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582311918] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:39:07,254 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:39:07,254 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-12-02 10:39:07,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879396132] [2024-12-02 10:39:07,255 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:39:07,255 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 10:39:07,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 10:39:07,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-12-02 10:39:07,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-12-02 10:39:07,256 INFO L87 Difference]: Start difference. First operand 101 states and 132 transitions. cyclomatic complexity: 33 Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-12-02 10:39:07,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:39:07,324 INFO L93 Difference]: Finished difference Result 161 states and 205 transitions. [2024-12-02 10:39:07,324 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 161 states and 205 transitions. [2024-12-02 10:39:07,326 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-12-02 10:39:07,328 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 161 states to 161 states and 205 transitions. [2024-12-02 10:39:07,328 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 161 [2024-12-02 10:39:07,328 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 161 [2024-12-02 10:39:07,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 161 states and 205 transitions. [2024-12-02 10:39:07,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 10:39:07,329 INFO L218 hiAutomatonCegarLoop]: Abstraction has 161 states and 205 transitions. [2024-12-02 10:39:07,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states and 205 transitions. [2024-12-02 10:39:07,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-12-02 10:39:07,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 161 states have (on average 1.2732919254658386) internal successors, (205), 160 states have internal predecessors, (205), 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 10:39:07,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 205 transitions. [2024-12-02 10:39:07,338 INFO L240 hiAutomatonCegarLoop]: Abstraction has 161 states and 205 transitions. [2024-12-02 10:39:07,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-12-02 10:39:07,340 INFO L425 stractBuchiCegarLoop]: Abstraction has 161 states and 205 transitions. [2024-12-02 10:39:07,340 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 10:39:07,340 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 161 states and 205 transitions. [2024-12-02 10:39:07,341 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 112 [2024-12-02 10:39:07,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:39:07,342 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:39:07,342 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:07,342 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] [2024-12-02 10:39:07,342 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#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~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#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 10:39:07,343 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#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~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~6#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:39:07,343 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,343 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-12-02 10:39:07,343 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026317029] [2024-12-02 10:39:07,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,352 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:07,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,360 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:07,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,361 INFO L85 PathProgramCache]: Analyzing trace with hash 2141304910, now seen corresponding path program 1 times [2024-12-02 10:39:07,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092035826] [2024-12-02 10:39:07,362 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:07,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 10:39:07,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2092035826] [2024-12-02 10:39:07,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2092035826] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 10:39:07,441 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1725200870] [2024-12-02 10:39:07,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,441 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 10:39:07,441 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 10:39:07,443 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 10:39:07,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-12-02 10:39:07,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 10:39:07,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-12-02 10:39:07,493 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 10:39:07,537 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 10:39:07,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1725200870] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 10:39:07,571 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 10:39:07,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-12-02 10:39:07,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623361298] [2024-12-02 10:39:07,572 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 10:39:07,572 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-12-02 10:39:07,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 10:39:07,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-12-02 10:39:07,572 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-12-02 10:39:07,572 INFO L87 Difference]: Start difference. First operand 161 states and 205 transitions. cyclomatic complexity: 46 Second operand has 8 states, 8 states have (on average 4.75) internal successors, (38), 8 states have internal predecessors, (38), 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 10:39:07,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 10:39:07,719 INFO L93 Difference]: Finished difference Result 312 states and 389 transitions. [2024-12-02 10:39:07,719 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 312 states and 389 transitions. [2024-12-02 10:39:07,722 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 222 [2024-12-02 10:39:07,724 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 312 states to 312 states and 389 transitions. [2024-12-02 10:39:07,724 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 312 [2024-12-02 10:39:07,725 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 312 [2024-12-02 10:39:07,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 312 states and 389 transitions. [2024-12-02 10:39:07,726 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 10:39:07,726 INFO L218 hiAutomatonCegarLoop]: Abstraction has 312 states and 389 transitions. [2024-12-02 10:39:07,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states and 389 transitions. [2024-12-02 10:39:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 312. [2024-12-02 10:39:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 312 states have (on average 1.2467948717948718) internal successors, (389), 311 states have internal predecessors, (389), 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 10:39:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 389 transitions. [2024-12-02 10:39:07,739 INFO L240 hiAutomatonCegarLoop]: Abstraction has 312 states and 389 transitions. [2024-12-02 10:39:07,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 10:39:07,740 INFO L425 stractBuchiCegarLoop]: Abstraction has 312 states and 389 transitions. [2024-12-02 10:39:07,740 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-12-02 10:39:07,740 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 312 states and 389 transitions. [2024-12-02 10:39:07,742 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 222 [2024-12-02 10:39:07,743 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 10:39:07,743 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 10:39:07,743 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 10:39:07,743 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] [2024-12-02 10:39:07,743 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;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~switchedOnBeforeTS~0 := 0;~cleanupTimeShifts~0 := 4;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret51#1, main_~retValue_acc~11#1, main_~tmp~7#1;havoc main_~retValue_acc~11#1;havoc main_~tmp~7#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~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret51#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~7#1 := main_#t~ret51#1;havoc main_#t~ret51#1;" "assume 0 != main_~tmp~7#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~nondet33#1, test_#t~nondet34#1, test_#t~nondet35#1, test_#t~nondet36#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#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 10:39:07,744 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet33#1;test_~tmp~3#1 := test_#t~nondet33#1;havoc test_#t~nondet33#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet34#1;test_~tmp___0~0#1 := test_#t~nondet34#1;havoc test_#t~nondet34#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet35#1;test_~tmp___2~0#1 := test_#t~nondet35#1;havoc test_#t~nondet35#1;" "assume 0 != test_~tmp___2~0#1;assume { :begin_inline_startSystem } true;~systemActive~0 := 1;" "assume { :end_inline_startSystem } true;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__2_#t~ret48#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret48#1;havoc __utac_acc__Specification5_spec__2_#t~ret48#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret48#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~ret37#1, processEnvironment_~tmp~4#1;havoc processEnvironment_~tmp~4#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~10#1;havoc isHighWaterLevel_~tmp~5#1;havoc isHighWaterLevel_~tmp___0~1#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~7#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~7#1;" "isHighWaterLevel_#t~ret47#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~7#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret47#1;havoc isHighWaterLevel_#t~ret47#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~10#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~10#1;" "processEnvironment_#t~ret37#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret47#1, isHighWaterLevel_~retValue_acc~10#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment_~tmp~4#1 := processEnvironment_#t~ret37#1;havoc processEnvironment_#t~ret37#1;" "assume !(0 != processEnvironment_~tmp~4#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment_#t~ret37#1, processEnvironment_~tmp~4#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;havoc __utac_acc__Specification5_spec__3_~tmp~6#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;havoc getWaterLevel_~retValue_acc~6#1;getWaterLevel_~retValue_acc~6#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~6#1;" "__utac_acc__Specification5_spec__3_#t~ret49#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~6#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~6#1 := __utac_acc__Specification5_spec__3_#t~ret49#1;havoc __utac_acc__Specification5_spec__3_#t~ret49#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~6#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;havoc isPumpRunning_~retValue_acc~9#1;isPumpRunning_~retValue_acc~9#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~9#1;" "__utac_acc__Specification5_spec__3_#t~ret50#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~9#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~2#1 := __utac_acc__Specification5_spec__3_#t~ret50#1;havoc __utac_acc__Specification5_spec__3_#t~ret50#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~2#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret49#1, __utac_acc__Specification5_spec__3_#t~ret50#1, __utac_acc__Specification5_spec__3_~tmp~6#1, __utac_acc__Specification5_spec__3_~tmp___0~2#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 10:39:07,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,744 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-12-02 10:39:07,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127087711] [2024-12-02 10:39:07,744 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,751 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:07,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,758 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:07,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,758 INFO L85 PathProgramCache]: Analyzing trace with hash 483678665, now seen corresponding path program 1 times [2024-12-02 10:39:07,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085808857] [2024-12-02 10:39:07,758 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,766 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:07,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,773 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:07,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 10:39:07,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1390095232, now seen corresponding path program 1 times [2024-12-02 10:39:07,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 10:39:07,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049631871] [2024-12-02 10:39:07,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 10:39:07,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 10:39:07,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,786 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:07,798 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 10:39:08,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:08,739 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 10:39:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 10:39:08,782 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 10:39:08 BoogieIcfgContainer [2024-12-02 10:39:08,782 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 10:39:08,782 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 10:39:08,782 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 10:39:08,783 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 10:39:08,783 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 10:39:06" (3/4) ... [2024-12-02 10:39:08,784 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 10:39:08,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 10:39:08,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 10:39:08,827 INFO L158 Benchmark]: Toolchain (without parser) took 3459.69ms. Allocated memory is still 142.6MB. Free memory was 116.3MB in the beginning and 110.4MB in the end (delta: 5.9MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,828 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:39:08,828 INFO L158 Benchmark]: CACSL2BoogieTranslator took 317.10ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 97.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,828 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.09ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 95.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 10:39:08,829 INFO L158 Benchmark]: Boogie Preprocessor took 43.24ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 93.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,829 INFO L158 Benchmark]: RCFGBuilder took 419.68ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 73.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,829 INFO L158 Benchmark]: BuchiAutomizer took 2589.13ms. Allocated memory is still 142.6MB. Free memory was 73.1MB in the beginning and 46.2MB in the end (delta: 26.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,830 INFO L158 Benchmark]: Witness Printer took 44.31ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 110.4MB in the end (delta: -64.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 10:39:08,831 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 142.6MB. Free memory is still 82.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 317.10ms. Allocated memory is still 142.6MB. Free memory was 116.2MB in the beginning and 97.9MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.09ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 95.6MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 43.24ms. Allocated memory is still 142.6MB. Free memory was 95.6MB in the beginning and 93.4MB in the end (delta: 2.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 419.68ms. Allocated memory is still 142.6MB. Free memory was 93.4MB in the beginning and 73.3MB in the end (delta: 20.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * BuchiAutomizer took 2589.13ms. Allocated memory is still 142.6MB. Free memory was 73.1MB in the beginning and 46.2MB in the end (delta: 26.9MB). Peak memory consumption was 24.9MB. Max. memory is 16.1GB. * Witness Printer took 44.31ms. Allocated memory is still 142.6MB. Free memory was 46.2MB in the beginning and 110.4MB in the end (delta: -64.3MB). 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,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [87] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [96] - GenericResultAtLocation [Line: 462]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [462] - GenericResultAtLocation [Line: 563]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [563] - GenericResultAtLocation [Line: 633]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [633] - GenericResultAtLocation [Line: 802]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [802] - GenericResultAtLocation [Line: 851]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [851] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 312 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.5s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 2.0s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 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, 706 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 706 mSDsluCounter, 1247 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 824 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 141 IncrementalHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 423 mSDtfsCounter, 141 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 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: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] 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) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] 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: [L266] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L470] int waterLevel = 1; [L471] int methaneLevelCritical = 0; [L638] int pumpRunning = 0; [L639] int systemActive = 1; [L803] int switchedOnBeforeTS ; [L852] int cleanupTimeShifts = 4; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L926] int retValue_acc ; [L927] int tmp ; [L931] FCALL select_helpers() [L932] FCALL select_features() [L933] CALL, EXPR valid_product() [L79] int retValue_acc ; [L82] retValue_acc = 1 [L83] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L933] RET, EXPR valid_product() [L933] tmp = valid_product() [L935] COND TRUE \read(tmp) [L937] FCALL setup() [L938] CALL runTest() [L919] CALL __utac_acc__Specification5_spec__1() [L808] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L919] RET __utac_acc__Specification5_spec__1() [L920] 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) [L609] CALL startSystem() [L798] systemActive = 1 [L609] RET startSystem() [L622] CALL timeShift() [L648] CALL __utac_acc__Specification5_spec__2() [L817] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L817] RET, EXPR isPumpRunning() [L817] switchedOnBeforeTS = isPumpRunning() [L648] RET __utac_acc__Specification5_spec__2() [L650] COND FALSE !(\read(pumpRunning)) [L657] COND TRUE \read(systemActive) [L659] CALL processEnvironment() [L679] int tmp ; [L682] COND TRUE ! pumpRunning [L684] CALL, EXPR isHighWaterLevel() [L776] int retValue_acc ; [L777] int tmp ; [L778] int tmp___0 ; [L782] CALL, EXPR isHighWaterSensorDry() [L550] int retValue_acc ; [L553] COND TRUE waterLevel < 2 [L554] retValue_acc = 1 [L555] return (retValue_acc); [L782] RET, EXPR isHighWaterSensorDry() [L782] tmp = isHighWaterSensorDry() [L784] COND TRUE \read(tmp) [L785] tmp___0 = 0 [L789] retValue_acc = tmp___0 [L790] return (retValue_acc); [L684] RET, EXPR isHighWaterLevel() [L684] tmp = isHighWaterLevel() [L686] COND FALSE !(\read(tmp)) [L692] FCALL processEnvironment__wrappee__base() [L659] RET processEnvironment() [L665] CALL __utac_acc__Specification5_spec__3() [L823] int tmp ; [L824] int tmp___0 ; [L828] CALL, EXPR getWaterLevel() [L541] int retValue_acc ; [L544] retValue_acc = waterLevel [L545] return (retValue_acc); [L828] RET, EXPR getWaterLevel() [L828] tmp = getWaterLevel() [L830] COND TRUE tmp != 2 [L832] CALL, EXPR isPumpRunning() [L731] int retValue_acc ; [L734] retValue_acc = pumpRunning [L735] return (retValue_acc); [L832] RET, EXPR isPumpRunning() [L832] tmp___0 = isPumpRunning() [L834] COND FALSE !(\read(tmp___0)) [L665] RET __utac_acc__Specification5_spec__3() [L622] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 10:39:08,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-12-02 10:39:09,047 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 10:39:09,247 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 10:39:09,448 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_159c7cf9-704e-4f2e-b9d4-7bac53e1b4f5/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)