./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.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_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/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_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/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_8b26012c-d74b-4201-9b97-d9699179f071/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 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-12-02 07:28:16,338 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-12-02 07:28:16,390 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-12-02 07:28:16,395 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-12-02 07:28:16,395 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-12-02 07:28:16,414 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-12-02 07:28:16,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-12-02 07:28:16,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-12-02 07:28:16,415 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-12-02 07:28:16,415 INFO L153 SettingsManager]: * Use memory slicer=true [2024-12-02 07:28:16,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-12-02 07:28:16,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-12-02 07:28:16,415 INFO L153 SettingsManager]: * Use SBE=true [2024-12-02 07:28:16,415 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-12-02 07:28:16,415 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-12-02 07:28:16,415 INFO L153 SettingsManager]: * Use old map elimination=false [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-12-02 07:28:16,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-12-02 07:28:16,416 INFO L153 SettingsManager]: * sizeof long double=12 [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-12-02 07:28:16,417 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-12-02 07:28:16,417 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-12-02 07:28:16,417 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-12-02 07:28:16,417 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-12-02 07:28:16,417 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_8b26012c-d74b-4201-9b97-d9699179f071/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 -> 168393e8d033cc8a1f93b6836944286e12246452392b8a342ff0210c89948e1e [2024-12-02 07:28:16,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-12-02 07:28:16,646 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-12-02 07:28:16,648 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-12-02 07:28:16,649 INFO L270 PluginConnector]: Initializing CDTParser... [2024-12-02 07:28:16,649 INFO L274 PluginConnector]: CDTParser initialized [2024-12-02 07:28:16,650 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/../../sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2024-12-02 07:28:19,227 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/data/68a425e52/ae53b5f6c3ef491c88ad966b547fed34/FLAG39b03396a [2024-12-02 07:28:19,457 INFO L384 CDTParser]: Found 1 translation units. [2024-12-02 07:28:19,457 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/sv-benchmarks/c/product-lines/minepump_spec3_product24.cil.c [2024-12-02 07:28:19,469 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/data/68a425e52/ae53b5f6c3ef491c88ad966b547fed34/FLAG39b03396a [2024-12-02 07:28:19,810 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/data/68a425e52/ae53b5f6c3ef491c88ad966b547fed34 [2024-12-02 07:28:19,812 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-12-02 07:28:19,814 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-12-02 07:28:19,815 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-12-02 07:28:19,815 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-12-02 07:28:19,819 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-12-02 07:28:19,819 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:28:19" (1/1) ... [2024-12-02 07:28:19,820 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4361646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:19, skipping insertion in model container [2024-12-02 07:28:19,820 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 07:28:19" (1/1) ... [2024-12-02 07:28:19,847 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-12-02 07:28:20,071 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:28:20,082 INFO L200 MainTranslator]: Completed pre-run [2024-12-02 07:28:20,090 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-12-02 07:28:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] [2024-12-02 07:28:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [271] [2024-12-02 07:28:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [343] [2024-12-02 07:28:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [378] [2024-12-02 07:28:20,091 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [477] [2024-12-02 07:28:20,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [843] [2024-12-02 07:28:20,092 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [932] [2024-12-02 07:28:20,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-12-02 07:28:20,153 INFO L204 MainTranslator]: Completed translation [2024-12-02 07:28:20,153 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20 WrapperNode [2024-12-02 07:28:20,154 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-12-02 07:28:20,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-12-02 07:28:20,155 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-12-02 07:28:20,155 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-12-02 07:28:20,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,173 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,198 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 55, calls inlined = 86, statements flattened = 548 [2024-12-02 07:28:20,199 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-12-02 07:28:20,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-12-02 07:28:20,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-12-02 07:28:20,199 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-12-02 07:28:20,207 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,208 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,210 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,222 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 07:28:20,223 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,223 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,229 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,230 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,233 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,234 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,235 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,237 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-12-02 07:28:20,237 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-12-02 07:28:20,238 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-12-02 07:28:20,238 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-12-02 07:28:20,238 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (1/1) ... [2024-12-02 07:28:20,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-12-02 07:28:20,254 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:28:20,263 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-12-02 07:28:20,265 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-12-02 07:28:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-12-02 07:28:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-12-02 07:28:20,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-12-02 07:28:20,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-12-02 07:28:20,338 INFO L234 CfgBuilder]: Building ICFG [2024-12-02 07:28:20,339 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-12-02 07:28:20,688 INFO L? ?]: Removed 127 outVars from TransFormulas that were not future-live. [2024-12-02 07:28:20,688 INFO L283 CfgBuilder]: Performing block encoding [2024-12-02 07:28:20,698 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-12-02 07:28:20,699 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-12-02 07:28:20,699 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:28:20 BoogieIcfgContainer [2024-12-02 07:28:20,699 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-12-02 07:28:20,700 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-12-02 07:28:20,700 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-12-02 07:28:20,704 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-12-02 07:28:20,704 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:28:20,705 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 02.12 07:28:19" (1/3) ... [2024-12-02 07:28:20,705 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@447277e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:28:20, skipping insertion in model container [2024-12-02 07:28:20,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:28:20,706 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 07:28:20" (2/3) ... [2024-12-02 07:28:20,706 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@447277e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 02.12 07:28:20, skipping insertion in model container [2024-12-02 07:28:20,706 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-12-02 07:28:20,706 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:28:20" (3/3) ... [2024-12-02 07:28:20,707 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec3_product24.cil.c [2024-12-02 07:28:20,747 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-12-02 07:28:20,747 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-12-02 07:28:20,747 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-12-02 07:28:20,747 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-12-02 07:28:20,747 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-12-02 07:28:20,748 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-12-02 07:28:20,748 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-12-02 07:28:20,748 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-12-02 07:28:20,752 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 161 states have internal predecessors, (217), 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 07:28:20,780 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-12-02 07:28:20,781 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:28:20,781 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:28:20,786 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:20,786 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:20,786 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-12-02 07:28:20,786 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 162 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 161 states have internal predecessors, (217), 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 07:28:20,792 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 105 [2024-12-02 07:28:20,792 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:28:20,792 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:28:20,793 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:20,793 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:20,797 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:28:20,797 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet19#1;test_~tmp___1~0#1 := test_#t~nondet19#1;havoc test_#t~nondet19#1;" "assume !(0 != test_~tmp___1~0#1);" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:28:20,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:20,801 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-12-02 07:28:20,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:20,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842954484] [2024-12-02 07:28:20,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:20,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:20,870 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:20,896 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:20,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash -1430251155, now seen corresponding path program 1 times [2024-12-02 07:28:20,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:20,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87528444] [2024-12-02 07:28:20,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:20,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:20,906 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:20,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:20,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:20,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:20,915 INFO L85 PathProgramCache]: Analyzing trace with hash -74832079, now seen corresponding path program 1 times [2024-12-02 07:28:20,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:20,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354514081] [2024-12-02 07:28:20,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:20,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:28:21,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:28:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354514081] [2024-12-02 07:28:21,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354514081] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:28:21,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388420232] [2024-12-02 07:28:21,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:28:21,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:28:21,092 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:28:21,093 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-12-02 07:28:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:28:21,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-12-02 07:28:21,162 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:28:21,208 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:28:21,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388420232] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:28:21,246 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:28:21,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-12-02 07:28:21,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993401817] [2024-12-02 07:28:21,247 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:28:21,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:28:21,321 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-12-02 07:28:21,321 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-12-02 07:28:21,323 INFO L87 Difference]: Start difference. First operand has 162 states, 161 states have (on average 1.3478260869565217) internal successors, (217), 161 states have internal predecessors, (217), 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 5.857142857142857) internal successors, (41), 6 states have internal predecessors, (41), 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 07:28:21,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:28:21,461 INFO L93 Difference]: Finished difference Result 372 states and 483 transitions. [2024-12-02 07:28:21,462 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 372 states and 483 transitions. [2024-12-02 07:28:21,468 INFO L131 ngComponentsAnalysis]: Automaton has 4 accepting balls. 241 [2024-12-02 07:28:21,476 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 372 states to 342 states and 453 transitions. [2024-12-02 07:28:21,477 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 342 [2024-12-02 07:28:21,478 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 342 [2024-12-02 07:28:21,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 342 states and 453 transitions. [2024-12-02 07:28:21,480 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:28:21,481 INFO L218 hiAutomatonCegarLoop]: Abstraction has 342 states and 453 transitions. [2024-12-02 07:28:21,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states and 453 transitions. [2024-12-02 07:28:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 202. [2024-12-02 07:28:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 202 states have (on average 1.3267326732673268) internal successors, (268), 201 states have internal predecessors, (268), 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 07:28:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 268 transitions. [2024-12-02 07:28:21,511 INFO L240 hiAutomatonCegarLoop]: Abstraction has 202 states and 268 transitions. [2024-12-02 07:28:21,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-12-02 07:28:21,514 INFO L425 stractBuchiCegarLoop]: Abstraction has 202 states and 268 transitions. [2024-12-02 07:28:21,514 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-12-02 07:28:21,514 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 202 states and 268 transitions. [2024-12-02 07:28:21,516 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 141 [2024-12-02 07:28:21,516 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:28:21,516 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:28:21,517 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:21,517 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 07:28:21,517 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:28:21,517 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#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 !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1;" "assume 0 != __utac_acc__Specification3_spec__1_~tmp~4#1;" "havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:28:21,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-12-02 07:28:21,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:21,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019898239] [2024-12-02 07:28:21,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:21,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,526 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:21,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,535 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:21,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:21,535 INFO L85 PathProgramCache]: Analyzing trace with hash -926540174, now seen corresponding path program 1 times [2024-12-02 07:28:21,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:21,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987851391] [2024-12-02 07:28:21,536 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:21,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,542 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:21,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,548 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:21,548 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:21,549 INFO L85 PathProgramCache]: Analyzing trace with hash -474870994, now seen corresponding path program 1 times [2024-12-02 07:28:21,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:21,549 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170626079] [2024-12-02 07:28:21,549 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:21,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:28:21,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-12-02 07:28:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170626079] [2024-12-02 07:28:21,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170626079] provided 0 perfect and 1 imperfect interpolant sequences [2024-12-02 07:28:21,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140978282] [2024-12-02 07:28:21,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-12-02 07:28:21,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 [2024-12-02 07:28:21,657 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-12-02 07:28:21,658 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-12-02 07:28:21,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-12-02 07:28:21,714 INFO L256 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-12-02 07:28:21,716 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-12-02 07:28:21,765 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-12-02 07:28:21,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140978282] provided 0 perfect and 2 imperfect interpolant sequences [2024-12-02 07:28:21,809 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-12-02 07:28:21,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 4 [2024-12-02 07:28:21,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568738168] [2024-12-02 07:28:21,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-12-02 07:28:21,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-12-02 07:28:21,873 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-12-02 07:28:21,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-12-02 07:28:21,874 INFO L87 Difference]: Start difference. First operand 202 states and 268 transitions. cyclomatic complexity: 69 Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 4 states have internal predecessors, (28), 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 07:28:21,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-12-02 07:28:21,957 INFO L93 Difference]: Finished difference Result 397 states and 521 transitions. [2024-12-02 07:28:21,958 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 397 states and 521 transitions. [2024-12-02 07:28:21,960 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 282 [2024-12-02 07:28:21,963 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 397 states to 397 states and 521 transitions. [2024-12-02 07:28:21,963 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 397 [2024-12-02 07:28:21,964 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 397 [2024-12-02 07:28:21,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 397 states and 521 transitions. [2024-12-02 07:28:21,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-12-02 07:28:21,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 397 states and 521 transitions. [2024-12-02 07:28:21,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states and 521 transitions. [2024-12-02 07:28:21,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 397. [2024-12-02 07:28:21,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 397 states have (on average 1.3123425692695214) internal successors, (521), 396 states have internal predecessors, (521), 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 07:28:21,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 521 transitions. [2024-12-02 07:28:21,982 INFO L240 hiAutomatonCegarLoop]: Abstraction has 397 states and 521 transitions. [2024-12-02 07:28:21,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-12-02 07:28:21,983 INFO L425 stractBuchiCegarLoop]: Abstraction has 397 states and 521 transitions. [2024-12-02 07:28:21,983 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-12-02 07:28:21,983 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 397 states and 521 transitions. [2024-12-02 07:28:21,986 INFO L131 ngComponentsAnalysis]: Automaton has 5 accepting balls. 282 [2024-12-02 07:28:21,986 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-12-02 07:28:21,986 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-12-02 07:28:21,986 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:21,986 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-12-02 07:28:21,986 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);~pumpRunning~0 := 0;~systemActive~0 := 1;~cleanupTimeShifts~0 := 4;~head~0.base, ~head~0.offset := 0, 0;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret23#1, main_~retValue_acc~3#1, main_~tmp~5#1;havoc main_~retValue_acc~3#1;havoc main_~tmp~5#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~11#1;havoc valid_product_~retValue_acc~11#1;valid_product_~retValue_acc~11#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~11#1;" "main_#t~ret23#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~11#1;assume { :end_inline_valid_product } true;main_~tmp~5#1 := main_#t~ret23#1;havoc main_#t~ret23#1;" "assume 0 != main_~tmp~5#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet16#1, test_#t~nondet17#1, test_#t~nondet18#1, test_#t~nondet19#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-12-02 07:28:21,987 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet16#1;test_~tmp~3#1 := test_#t~nondet16#1;havoc test_#t~nondet16#1;" "assume !(0 != test_~tmp~3#1);" "havoc test_#t~nondet17#1;test_~tmp___0~1#1 := test_#t~nondet17#1;havoc test_#t~nondet17#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet18#1;test_~tmp___2~0#1 := test_#t~nondet18#1;havoc test_#t~nondet18#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 !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;havoc processEnvironment_~tmp~1#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__lowWaterSensor } true;havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;havoc processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__lowWaterSensor_#t~ret4#1, processEnvironment__wrappee__lowWaterSensor_~tmp~0#1;assume { :end_inline_processEnvironment__wrappee__lowWaterSensor } true;" "havoc processEnvironment_#t~ret5#1, processEnvironment_~tmp~1#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification3_spec__1 } true;havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;havoc __utac_acc__Specification3_spec__1_~tmp~4#1;havoc __utac_acc__Specification3_spec__1_~tmp___0~2#1;havoc __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;isMethaneLevelCritical_~retValue_acc~7#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~7#1;" "__utac_acc__Specification3_spec__1_#t~ret20#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~7#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification3_spec__1_~tmp~4#1 := __utac_acc__Specification3_spec__1_#t~ret20#1;havoc __utac_acc__Specification3_spec__1_#t~ret20#1;" "assume !(0 != __utac_acc__Specification3_spec__1_~tmp~4#1);assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;havoc getWaterLevel_~retValue_acc~8#1;getWaterLevel_~retValue_acc~8#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~8#1;" "__utac_acc__Specification3_spec__1_#t~ret21#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~8#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification3_spec__1_~tmp___0~2#1 := __utac_acc__Specification3_spec__1_#t~ret21#1;havoc __utac_acc__Specification3_spec__1_#t~ret21#1;" "assume !(2 == __utac_acc__Specification3_spec__1_~tmp___0~2#1);" "havoc __utac_acc__Specification3_spec__1_#t~ret20#1, __utac_acc__Specification3_spec__1_#t~ret21#1, __utac_acc__Specification3_spec__1_#t~ret22#1, __utac_acc__Specification3_spec__1_~tmp~4#1, __utac_acc__Specification3_spec__1_~tmp___0~2#1, __utac_acc__Specification3_spec__1_~tmp___1~1#1;assume { :end_inline___utac_acc__Specification3_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-12-02 07:28:21,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:21,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-12-02 07:28:21,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:21,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137457785] [2024-12-02 07:28:21,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:21,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:21,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,993 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:21,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:21,999 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:22,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:22,000 INFO L85 PathProgramCache]: Analyzing trace with hash -1345683161, now seen corresponding path program 1 times [2024-12-02 07:28:22,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:22,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449196230] [2024-12-02 07:28:22,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:22,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:22,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,005 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:22,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,010 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:22,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-12-02 07:28:22,010 INFO L85 PathProgramCache]: Analyzing trace with hash -1083298077, now seen corresponding path program 1 times [2024-12-02 07:28:22,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-12-02 07:28:22,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452464155] [2024-12-02 07:28:22,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-12-02 07:28:22,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-12-02 07:28:22,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,019 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:22,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,028 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-12-02 07:28:22,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,889 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-12-02 07:28:22,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-12-02 07:28:22,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 02.12 07:28:22 BoogieIcfgContainer [2024-12-02 07:28:22,937 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-12-02 07:28:22,938 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-12-02 07:28:22,938 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-12-02 07:28:22,938 INFO L274 PluginConnector]: Witness Printer initialized [2024-12-02 07:28:22,939 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 07:28:20" (3/4) ... [2024-12-02 07:28:22,940 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-12-02 07:28:22,979 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/witness.graphml [2024-12-02 07:28:22,979 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-12-02 07:28:22,980 INFO L158 Benchmark]: Toolchain (without parser) took 3165.91ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 91.9MB in the beginning and 118.8MB in the end (delta: -26.9MB). Peak memory consumption was 92.8MB. Max. memory is 16.1GB. [2024-12-02 07:28:22,980 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:28:22,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 339.20ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.4MB in the end (delta: 18.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:28:22,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.07ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-12-02 07:28:22,981 INFO L158 Benchmark]: Boogie Preprocessor took 37.88ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 67.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:28:22,981 INFO L158 Benchmark]: RCFGBuilder took 461.82ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 43.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-12-02 07:28:22,981 INFO L158 Benchmark]: BuchiAutomizer took 2237.04ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 43.2MB in the beginning and 120.9MB in the end (delta: -77.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. [2024-12-02 07:28:22,982 INFO L158 Benchmark]: Witness Printer took 41.27ms. Allocated memory is still 234.9MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-12-02 07:28:22,983 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 117.4MB. Free memory was 72.2MB in the beginning and 72.1MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 339.20ms. Allocated memory is still 117.4MB. Free memory was 91.8MB in the beginning and 73.4MB in the end (delta: 18.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.07ms. Allocated memory is still 117.4MB. Free memory was 73.4MB in the beginning and 70.7MB in the end (delta: 2.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 37.88ms. Allocated memory is still 117.4MB. Free memory was 70.7MB in the beginning and 67.7MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 461.82ms. Allocated memory is still 117.4MB. Free memory was 67.7MB in the beginning and 43.2MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 2237.04ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 43.2MB in the beginning and 120.9MB in the end (delta: -77.7MB). Peak memory consumption was 50.8MB. Max. memory is 16.1GB. * Witness Printer took 41.27ms. Allocated memory is still 234.9MB. Free memory was 120.9MB in the beginning and 118.8MB in the end (delta: 2.1MB). There was no memory consumed. 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [58] - GenericResultAtLocation [Line: 271]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [271] - GenericResultAtLocation [Line: 343]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [343] - GenericResultAtLocation [Line: 378]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [378] - GenericResultAtLocation [Line: 477]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [477] - GenericResultAtLocation [Line: 843]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [843] - GenericResultAtLocation [Line: 932]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [932] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 2 terminating modules (2 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.2 modules have a trivial ranking function, the largest among these consists of 7 locations. The remainder module has 397 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 2.1s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 1.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.2s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 140 StatesRemovedByMinimization, 1 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 537 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 1951 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1562 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 113 IncrementalHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 389 mSDtfsCounter, 113 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc2 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: 287]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L317] CALL startSystem() [L267] systemActive = 1 [L317] RET startSystem() [L332] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] CALL processEnvironment__wrappee__lowWaterSensor() [L107] int tmp ; [L110] COND FALSE !(\read(pumpRunning)) [L125] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment__wrappee__lowWaterSensor() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L352] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L352] RET, EXPR isMethaneLevelCritical() [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND FALSE !(tmp___0 == 2) [L93] RET __utac_acc__Specification3_spec__1() [L332] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 287]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L70] int pumpRunning = 0; [L71] int systemActive = 1; [L379] int cleanupTimeShifts = 4; [L647] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L844] int waterLevel = 1; [L845] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L455] int retValue_acc ; [L456] int tmp ; [L460] FCALL select_helpers() [L461] FCALL select_features() [L462] CALL, EXPR valid_product() [L959] int retValue_acc ; [L962] retValue_acc = 1 [L963] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L462] RET, EXPR valid_product() [L462] tmp = valid_product() [L464] COND TRUE \read(tmp) [L466] FCALL setup() [L467] CALL runTest() [L446] CALL test() [L276] int splverifierCounter ; [L277] int tmp ; [L278] int tmp___0 ; [L279] int tmp___1 ; [L280] int tmp___2 ; [L283] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L287] COND TRUE splverifierCounter < 4 [L293] tmp = __VERIFIER_nondet_int() [L295] COND FALSE !(\read(tmp)) [L303] tmp___0 = __VERIFIER_nondet_int() [L305] COND FALSE !(\read(tmp___0)) [L313] tmp___2 = __VERIFIER_nondet_int() [L315] COND TRUE \read(tmp___2) [L317] CALL startSystem() [L267] systemActive = 1 [L317] RET startSystem() [L332] CALL timeShift() [L78] COND FALSE !(\read(pumpRunning)) [L85] COND TRUE \read(systemActive) [L87] CALL processEnvironment() [L133] int tmp ; [L136] COND FALSE !(\read(pumpRunning)) [L151] CALL processEnvironment__wrappee__lowWaterSensor() [L107] int tmp ; [L110] COND FALSE !(\read(pumpRunning)) [L125] FCALL processEnvironment__wrappee__base() [L151] RET processEnvironment__wrappee__lowWaterSensor() [L87] RET processEnvironment() [L93] CALL __utac_acc__Specification3_spec__1() [L346] int tmp ; [L347] int tmp___0 ; [L348] int tmp___1 ; [L352] CALL, EXPR isMethaneLevelCritical() [L883] int retValue_acc ; [L886] retValue_acc = methaneLevelCritical [L887] return (retValue_acc); [L352] RET, EXPR isMethaneLevelCritical() [L352] tmp = isMethaneLevelCritical() [L354] COND FALSE !(\read(tmp)) [L358] CALL, EXPR getWaterLevel() [L915] int retValue_acc ; [L918] retValue_acc = waterLevel [L919] return (retValue_acc); [L358] RET, EXPR getWaterLevel() [L358] tmp___0 = getWaterLevel() [L360] COND FALSE !(tmp___0 == 2) [L93] RET __utac_acc__Specification3_spec__1() [L332] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-12-02 07:28:23,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-12-02 07:28:23,196 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/bin/uautomizer-verify-84ZbGMXZE1/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-12-02 07:28:23,397 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8b26012c-d74b-4201-9b97-d9699179f071/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)