./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.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_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB --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 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-27 23:32:12,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-27 23:32:12,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-27 23:32:12,321 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-27 23:32:12,323 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-27 23:32:12,357 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-27 23:32:12,358 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-27 23:32:12,358 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-27 23:32:12,359 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-27 23:32:12,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-27 23:32:12,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-27 23:32:12,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-27 23:32:12,360 INFO L153 SettingsManager]: * Use SBE=true [2024-11-27 23:32:12,360 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-27 23:32:12,360 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-27 23:32:12,360 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-27 23:32:12,360 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-27 23:32:12,360 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-27 23:32:12,361 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-27 23:32:12,361 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-27 23:32:12,361 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-27 23:32:12,361 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-27 23:32:12,361 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-27 23:32:12,362 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-27 23:32:12,363 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-27 23:32:12,363 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-27 23:32:12,363 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-27 23:32:12,364 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-27 23:32:12,364 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-27 23:32:12,364 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_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 894b9126919d6af09c0902d1c20b8183acfd3589fe20590a119ca487cf6e7a3f [2024-11-27 23:32:12,750 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-27 23:32:12,762 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-27 23:32:12,766 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-27 23:32:12,768 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-27 23:32:12,769 INFO L274 PluginConnector]: CDTParser initialized [2024-11-27 23:32:12,771 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2024-11-27 23:32:16,304 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/fbc910d5d/85a4523429ab4089843b141c0eff0087/FLAG252ef59b1 [2024-11-27 23:32:16,645 INFO L384 CDTParser]: Found 1 translation units. [2024-11-27 23:32:16,645 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/sv-benchmarks/c/product-lines/minepump_spec4_product62.cil.c [2024-11-27 23:32:16,659 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/fbc910d5d/85a4523429ab4089843b141c0eff0087/FLAG252ef59b1 [2024-11-27 23:32:16,684 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/data/fbc910d5d/85a4523429ab4089843b141c0eff0087 [2024-11-27 23:32:16,687 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-27 23:32:16,688 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-27 23:32:16,690 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-27 23:32:16,690 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-27 23:32:16,695 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-27 23:32:16,696 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:32:16" (1/1) ... [2024-11-27 23:32:16,696 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68097a18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:16, skipping insertion in model container [2024-11-27 23:32:16,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:32:16" (1/1) ... [2024-11-27 23:32:16,753 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-27 23:32:17,161 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:32:17,185 INFO L200 MainTranslator]: Completed pre-run [2024-11-27 23:32:17,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-27 23:32:17,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [58] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [130] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [388] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [415] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] [2024-11-27 23:32:17,197 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [915] [2024-11-27 23:32:17,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-27 23:32:17,345 INFO L204 MainTranslator]: Completed translation [2024-11-27 23:32:17,346 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17 WrapperNode [2024-11-27 23:32:17,346 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-27 23:32:17,347 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-27 23:32:17,347 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-27 23:32:17,348 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-27 23:32:17,355 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,366 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,428 INFO L138 Inliner]: procedures = 58, calls = 106, calls flagged for inlining = 59, calls inlined = 177, statements flattened = 1204 [2024-11-27 23:32:17,428 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-27 23:32:17,429 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-27 23:32:17,429 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-27 23:32:17,429 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-27 23:32:17,439 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,439 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,444 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,468 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]. [2024-11-27 23:32:17,468 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,469 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,485 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,487 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,496 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,499 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,502 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,507 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-27 23:32:17,508 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-27 23:32:17,508 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-27 23:32:17,508 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-27 23:32:17,509 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (1/1) ... [2024-11-27 23:32:17,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-27 23:32:17,534 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:17,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-27 23:32:17,566 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-27 23:32:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-27 23:32:17,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-27 23:32:17,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-27 23:32:17,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-27 23:32:17,707 INFO L234 CfgBuilder]: Building ICFG [2024-11-27 23:32:17,712 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-27 23:32:18,911 INFO L? ?]: Removed 307 outVars from TransFormulas that were not future-live. [2024-11-27 23:32:18,911 INFO L283 CfgBuilder]: Performing block encoding [2024-11-27 23:32:18,947 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-27 23:32:18,948 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-27 23:32:18,949 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:18 BoogieIcfgContainer [2024-11-27 23:32:18,950 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-27 23:32:18,951 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-27 23:32:18,951 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-27 23:32:18,957 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-27 23:32:18,958 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:32:18,960 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.11 11:32:16" (1/3) ... [2024-11-27 23:32:18,961 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c4ecb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:32:18, skipping insertion in model container [2024-11-27 23:32:18,962 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:32:18,962 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:32:17" (2/3) ... [2024-11-27 23:32:18,963 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@6c4ecb74 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.11 11:32:18, skipping insertion in model container [2024-11-27 23:32:18,964 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-27 23:32:18,964 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:18" (3/3) ... [2024-11-27 23:32:18,967 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product62.cil.c [2024-11-27 23:32:19,060 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-27 23:32:19,061 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-27 23:32:19,062 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-27 23:32:19,062 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-27 23:32:19,062 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-27 23:32:19,063 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-27 23:32:19,063 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-27 23:32:19,063 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-27 23:32:19,073 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 320 states, 319 states have (on average 1.3510971786833856) internal successors, (431), 319 states have internal predecessors, (431), 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) [2024-11-27 23:32:19,114 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2024-11-27 23:32:19,118 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:32:19,119 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:32:19,127 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:19,127 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:19,127 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-27 23:32:19,129 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 320 states, 319 states have (on average 1.3510971786833856) internal successors, (431), 319 states have internal predecessors, (431), 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) [2024-11-27 23:32:19,151 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 209 [2024-11-27 23:32:19,152 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:32:19,152 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:32:19,153 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:19,153 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:19,160 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~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:32:19,160 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#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__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:32:19,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2024-11-27 23:32:19,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:19,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260991703] [2024-11-27 23:32:19,178 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:19,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:19,276 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:19,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:19,333 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:19,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:19,337 INFO L85 PathProgramCache]: Analyzing trace with hash -1748844272, now seen corresponding path program 1 times [2024-11-27 23:32:19,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:19,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943971313] [2024-11-27 23:32:19,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:19,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:19,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:19,361 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:19,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:19,379 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:19,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:19,384 INFO L85 PathProgramCache]: Analyzing trace with hash -393425196, now seen corresponding path program 1 times [2024-11-27 23:32:19,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:19,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620159867] [2024-11-27 23:32:19,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:19,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:19,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:32:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620159867] [2024-11-27 23:32:19,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620159867] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:19,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142009947] [2024-11-27 23:32:19,779 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:19,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:19,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:19,782 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:19,785 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-27 23:32:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:19,915 INFO L256 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-27 23:32:19,916 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:20,009 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:20,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142009947] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:20,091 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:20,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-27 23:32:20,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [357438403] [2024-11-27 23:32:20,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:20,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:32:20,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-27 23:32:20,280 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-27 23:32:20,284 INFO L87 Difference]: Start difference. First operand has 320 states, 319 states have (on average 1.3510971786833856) internal successors, (431), 319 states have internal predecessors, (431), 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) [2024-11-27 23:32:20,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:20,457 INFO L93 Difference]: Finished difference Result 314 states and 414 transitions. [2024-11-27 23:32:20,459 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 314 states and 414 transitions. [2024-11-27 23:32:20,464 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 203 [2024-11-27 23:32:20,478 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 314 states to 304 states and 404 transitions. [2024-11-27 23:32:20,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 304 [2024-11-27 23:32:20,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 304 [2024-11-27 23:32:20,481 INFO L73 IsDeterministic]: Start isDeterministic. Operand 304 states and 404 transitions. [2024-11-27 23:32:20,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:32:20,487 INFO L218 hiAutomatonCegarLoop]: Abstraction has 304 states and 404 transitions. [2024-11-27 23:32:20,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states and 404 transitions. [2024-11-27 23:32:20,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 304. [2024-11-27 23:32:20,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 304 states have (on average 1.3289473684210527) internal successors, (404), 303 states have internal predecessors, (404), 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) [2024-11-27 23:32:20,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 404 transitions. [2024-11-27 23:32:20,552 INFO L240 hiAutomatonCegarLoop]: Abstraction has 304 states and 404 transitions. [2024-11-27 23:32:20,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-27 23:32:20,561 INFO L425 stractBuchiCegarLoop]: Abstraction has 304 states and 404 transitions. [2024-11-27 23:32:20,561 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-27 23:32:20,561 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 304 states and 404 transitions. [2024-11-27 23:32:20,566 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 203 [2024-11-27 23:32:20,566 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:32:20,567 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:32:20,567 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:20,567 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] [2024-11-27 23:32:20,568 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~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:32:20,568 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume 0 != ~pumpRunning~0;assume { :begin_inline_isMethaneAlarm } true;havoc isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;havoc isMethaneAlarm_~retValue_acc~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;isMethaneLevelCritical_~retValue_acc~10#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~10#1;" "isMethaneAlarm_#t~ret12#1 := isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~10#1;assume { :end_inline_isMethaneLevelCritical } true;isMethaneAlarm_~retValue_acc~0#1 := isMethaneAlarm_#t~ret12#1;havoc isMethaneAlarm_#t~ret12#1;isMethaneAlarm_#res#1 := isMethaneAlarm_~retValue_acc~0#1;" "processEnvironment_#t~ret10#1 := isMethaneAlarm_#res#1;havoc isMethaneAlarm_#t~ret12#1, isMethaneAlarm_~retValue_acc~0#1;assume { :end_inline_isMethaneAlarm } true;processEnvironment_~tmp~3#1 := processEnvironment_#t~ret10#1;havoc processEnvironment_#t~ret10#1;" "assume 0 != processEnvironment_~tmp~3#1;assume { :begin_inline_deactivatePump } true;~pumpRunning~0 := 0;" "assume { :end_inline_deactivatePump } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:32:20,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:20,571 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 2 times [2024-11-27 23:32:20,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:20,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984522672] [2024-11-27 23:32:20,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:20,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:20,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:20,591 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:20,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:20,614 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:20,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:20,619 INFO L85 PathProgramCache]: Analyzing trace with hash 122403097, now seen corresponding path program 1 times [2024-11-27 23:32:20,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:20,619 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584877945] [2024-11-27 23:32:20,619 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:20,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:20,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:20,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-27 23:32:20,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584877945] [2024-11-27 23:32:20,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584877945] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-27 23:32:20,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [602624700] [2024-11-27 23:32:20,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:20,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-27 23:32:20,669 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-27 23:32:20,672 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-27 23:32:20,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-27 23:32:20,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-27 23:32:20,740 INFO L256 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-27 23:32:20,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-27 23:32:20,749 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-27 23:32:20,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [602624700] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-27 23:32:20,761 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-27 23:32:20,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-27 23:32:20,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736926191] [2024-11-27 23:32:20,762 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-27 23:32:20,762 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-27 23:32:20,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-27 23:32:20,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-27 23:32:20,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-27 23:32:20,764 INFO L87 Difference]: Start difference. First operand 304 states and 404 transitions. cyclomatic complexity: 102 Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-27 23:32:20,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-27 23:32:20,956 INFO L93 Difference]: Finished difference Result 310 states and 390 transitions. [2024-11-27 23:32:20,957 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 310 states and 390 transitions. [2024-11-27 23:32:20,962 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-27 23:32:20,968 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 310 states to 310 states and 390 transitions. [2024-11-27 23:32:20,970 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 310 [2024-11-27 23:32:20,971 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 310 [2024-11-27 23:32:20,972 INFO L73 IsDeterministic]: Start isDeterministic. Operand 310 states and 390 transitions. [2024-11-27 23:32:20,973 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-27 23:32:20,976 INFO L218 hiAutomatonCegarLoop]: Abstraction has 310 states and 390 transitions. [2024-11-27 23:32:20,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states and 390 transitions. [2024-11-27 23:32:20,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 310. [2024-11-27 23:32:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 310 states have (on average 1.2580645161290323) internal successors, (390), 309 states have internal predecessors, (390), 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) [2024-11-27 23:32:21,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 390 transitions. [2024-11-27 23:32:21,003 INFO L240 hiAutomatonCegarLoop]: Abstraction has 310 states and 390 transitions. [2024-11-27 23:32:21,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-27 23:32:21,005 INFO L425 stractBuchiCegarLoop]: Abstraction has 310 states and 390 transitions. [2024-11-27 23:32:21,005 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-27 23:32:21,007 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 310 states and 390 transitions. [2024-11-27 23:32:21,011 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 212 [2024-11-27 23:32:21,012 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-27 23:32:21,012 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-27 23:32:21,013 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-27 23:32:21,013 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] [2024-11-27 23:32:21,013 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~ret26#1, main_~retValue_acc~6#1, main_~tmp~8#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~8#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;havoc valid_product_~retValue_acc~5#1;valid_product_~retValue_acc~5#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~5#1;" "main_#t~ret26#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~5#1;assume { :end_inline_valid_product } true;main_~tmp~8#1 := main_#t~ret26#1;havoc main_#t~ret26#1;" "assume 0 != main_~tmp~8#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-27 23:32:21,015 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet4#1;test_~tmp~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1;" "assume !(0 != test_~tmp~0#1);" "havoc test_#t~nondet5#1;test_~tmp___0~0#1 := test_#t~nondet5#1;havoc test_#t~nondet5#1;" "assume !(0 != test_~tmp___0~0#1);" "havoc test_#t~nondet6#1;test_~tmp___2~0#1 := test_#t~nondet6#1;havoc test_#t~nondet6#1;" "assume !(0 != test_~tmp___2~0#1);havoc test_#t~nondet7#1;test_~tmp___1~0#1 := test_#t~nondet7#1;havoc test_#t~nondet7#1;" "assume 0 != test_~tmp___1~0#1;" "assume { :begin_inline_timeShift } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;havoc processEnvironment_~tmp~3#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__methaneQuery } true;havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;havoc processEnvironment__wrappee__methaneQuery_~tmp~2#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~1#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;havoc isHighWaterLevel_~retValue_acc~2#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~12#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~12#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~12#1;" "isHighWaterLevel_#t~ret21#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~12#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~5#1 := isHighWaterLevel_#t~ret21#1;havoc isHighWaterLevel_#t~ret21#1;" "assume 0 != isHighWaterLevel_~tmp~5#1;isHighWaterLevel_~tmp___0~1#1 := 0;" "isHighWaterLevel_~retValue_acc~2#1 := isHighWaterLevel_~tmp___0~1#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~2#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret8#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret21#1, isHighWaterLevel_~retValue_acc~2#1, isHighWaterLevel_~tmp~5#1, isHighWaterLevel_~tmp___0~1#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~1#1 := processEnvironment__wrappee__highWaterSensor_#t~ret8#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~1#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret8#1, processEnvironment__wrappee__highWaterSensor_~tmp~1#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment__wrappee__methaneQuery_#t~ret9#1, processEnvironment__wrappee__methaneQuery_~tmp~2#1;assume { :end_inline_processEnvironment__wrappee__methaneQuery } true;" "havoc processEnvironment_#t~ret10#1, processEnvironment_~tmp~3#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~7#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;havoc getWaterLevel_~retValue_acc~11#1;getWaterLevel_~retValue_acc~11#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~11#1;" "__utac_acc__Specification4_spec__1_#t~ret23#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~11#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~7#1 := __utac_acc__Specification4_spec__1_#t~ret23#1;havoc __utac_acc__Specification4_spec__1_#t~ret23#1;" "assume !(0 == __utac_acc__Specification4_spec__1_~tmp~7#1);" "havoc __utac_acc__Specification4_spec__1_#t~ret23#1, __utac_acc__Specification4_spec__1_#t~ret24#1, __utac_acc__Specification4_spec__1_~tmp~7#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :end_inline___utac_acc__Specification4_spec__1 } true;" "assume { :end_inline_timeShift } true;" [2024-11-27 23:32:21,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 3 times [2024-11-27 23:32:21,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:21,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382760604] [2024-11-27 23:32:21,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:21,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:21,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,033 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:21,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,051 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:21,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:21,055 INFO L85 PathProgramCache]: Analyzing trace with hash -235605650, now seen corresponding path program 1 times [2024-11-27 23:32:21,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:21,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101250592] [2024-11-27 23:32:21,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:21,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:21,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,071 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:21,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,091 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:21,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-27 23:32:21,092 INFO L85 PathProgramCache]: Analyzing trace with hash -361340374, now seen corresponding path program 1 times [2024-11-27 23:32:21,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-27 23:32:21,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103339247] [2024-11-27 23:32:21,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-27 23:32:21,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-27 23:32:21,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,124 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:21,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:21,144 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-27 23:32:22,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:22,500 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-27 23:32:22,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-27 23:32:22,576 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.11 11:32:22 BoogieIcfgContainer [2024-11-27 23:32:22,576 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-27 23:32:22,577 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-27 23:32:22,579 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-27 23:32:22,579 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-27 23:32:22,580 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:32:18" (3/4) ... [2024-11-27 23:32:22,582 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-27 23:32:22,642 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-27 23:32:22,642 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-27 23:32:22,643 INFO L158 Benchmark]: Toolchain (without parser) took 5954.55ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 48.5MB in the end (delta: 43.4MB). Peak memory consumption was 44.9MB. Max. memory is 16.1GB. [2024-11-27 23:32:22,643 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:22,644 INFO L158 Benchmark]: CACSL2BoogieTranslator took 656.41ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 72.8MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-27 23:32:22,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 81.34ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 68.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-27 23:32:22,644 INFO L158 Benchmark]: Boogie Preprocessor took 78.09ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 63.2MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:22,645 INFO L158 Benchmark]: RCFGBuilder took 1442.04ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 71.7MB in the end (delta: -8.5MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2024-11-27 23:32:22,645 INFO L158 Benchmark]: BuchiAutomizer took 3625.64ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 50.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. [2024-11-27 23:32:22,645 INFO L158 Benchmark]: Witness Printer took 65.05ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 48.5MB in the end (delta: 2.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-27 23:32:22,648 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 117.4MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 656.41ms. Allocated memory is still 117.4MB. Free memory was 92.0MB in the beginning and 72.8MB in the end (delta: 19.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 81.34ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 68.4MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.09ms. Allocated memory is still 117.4MB. Free memory was 68.4MB in the beginning and 63.2MB in the end (delta: 5.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1442.04ms. Allocated memory is still 117.4MB. Free memory was 63.2MB in the beginning and 71.7MB in the end (delta: -8.5MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * BuchiAutomizer took 3625.64ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 50.8MB in the end (delta: 20.9MB). Peak memory consumption was 21.6MB. Max. memory is 16.1GB. * Witness Printer took 65.05ms. Allocated memory is still 117.4MB. Free memory was 50.8MB in the beginning and 48.5MB in the end (delta: 2.2MB). 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,"scenario.i","") [58] - GenericResultAtLocation [Line: 130]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [130] - GenericResultAtLocation [Line: 388]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [388] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [415] - GenericResultAtLocation [Line: 453]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [453] - GenericResultAtLocation [Line: 549]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [549] - GenericResultAtLocation [Line: 915]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [915] * 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 310 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 3.4s and 3 iterations. TraceHistogramMax:1. Analysis of lassos took 2.7s. Construction of modules took 0.1s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 2. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 2 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, 1029 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1029 mSDsluCounter, 1634 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 935 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 62 IncrementalHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 699 mSDtfsCounter, 62 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI1 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: 76]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L140] int pumpRunning = 0; [L141] int systemActive = 1; [L454] int cleanupTimeShifts = 4; [L719] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L445] int retValue_acc ; [L448] retValue_acc = 1 [L449] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L521] CALL test() [L65] int splverifierCounter ; [L66] int tmp ; [L67] int tmp___0 ; [L68] int tmp___1 ; [L69] int tmp___2 ; [L72] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L76] COND TRUE splverifierCounter < 4 [L82] tmp = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp)) [L92] tmp___0 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___0)) [L102] tmp___2 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___2)) [L110] tmp___1 = __VERIFIER_nondet_int() [L112] COND TRUE \read(tmp___1) [L119] CALL timeShift() [L148] COND FALSE !(\read(pumpRunning)) [L155] COND TRUE \read(systemActive) [L157] CALL processEnvironment() [L229] int tmp ; [L232] COND FALSE !(\read(pumpRunning)) [L247] CALL processEnvironment__wrappee__methaneQuery() [L203] int tmp ; [L206] COND FALSE !(\read(pumpRunning)) [L221] CALL processEnvironment__wrappee__highWaterSensor() [L177] int tmp ; [L180] COND TRUE ! pumpRunning [L182] CALL, EXPR isHighWaterLevel() [L343] int retValue_acc ; [L344] int tmp ; [L345] int tmp___0 ; [L349] CALL, EXPR isHighWaterSensorDry() [L996] int retValue_acc ; [L999] COND TRUE waterLevel < 2 [L1000] retValue_acc = 1 [L1001] return (retValue_acc); [L349] RET, EXPR isHighWaterSensorDry() [L349] tmp = isHighWaterSensorDry() [L351] COND TRUE \read(tmp) [L352] tmp___0 = 0 [L356] retValue_acc = tmp___0 [L357] return (retValue_acc); [L182] RET, EXPR isHighWaterLevel() [L182] tmp = isHighWaterLevel() [L184] COND FALSE !(\read(tmp)) [L190] FCALL processEnvironment__wrappee__base() [L221] RET processEnvironment__wrappee__highWaterSensor() [L247] RET processEnvironment__wrappee__methaneQuery() [L157] RET processEnvironment() [L163] CALL __utac_acc__Specification4_spec__1() [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR getWaterLevel() [L987] int retValue_acc ; [L990] retValue_acc = waterLevel [L991] return (retValue_acc); [L396] RET, EXPR getWaterLevel() [L396] tmp = getWaterLevel() [L398] COND FALSE !(tmp == 0) [L163] RET __utac_acc__Specification4_spec__1() [L119] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 76]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L140] int pumpRunning = 0; [L141] int systemActive = 1; [L454] int cleanupTimeShifts = 4; [L719] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L916] int waterLevel = 1; [L917] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L527] int retValue_acc ; [L528] int tmp ; [L532] FCALL select_helpers() [L533] FCALL select_features() [L534] CALL, EXPR valid_product() [L445] int retValue_acc ; [L448] retValue_acc = 1 [L449] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L534] RET, EXPR valid_product() [L534] tmp = valid_product() [L536] COND TRUE \read(tmp) [L538] FCALL setup() [L539] CALL runTest() [L521] CALL test() [L65] int splverifierCounter ; [L66] int tmp ; [L67] int tmp___0 ; [L68] int tmp___1 ; [L69] int tmp___2 ; [L72] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] Loop: [L76] COND TRUE splverifierCounter < 4 [L82] tmp = __VERIFIER_nondet_int() [L84] COND FALSE !(\read(tmp)) [L92] tmp___0 = __VERIFIER_nondet_int() [L94] COND FALSE !(\read(tmp___0)) [L102] tmp___2 = __VERIFIER_nondet_int() [L104] COND FALSE !(\read(tmp___2)) [L110] tmp___1 = __VERIFIER_nondet_int() [L112] COND TRUE \read(tmp___1) [L119] CALL timeShift() [L148] COND FALSE !(\read(pumpRunning)) [L155] COND TRUE \read(systemActive) [L157] CALL processEnvironment() [L229] int tmp ; [L232] COND FALSE !(\read(pumpRunning)) [L247] CALL processEnvironment__wrappee__methaneQuery() [L203] int tmp ; [L206] COND FALSE !(\read(pumpRunning)) [L221] CALL processEnvironment__wrappee__highWaterSensor() [L177] int tmp ; [L180] COND TRUE ! pumpRunning [L182] CALL, EXPR isHighWaterLevel() [L343] int retValue_acc ; [L344] int tmp ; [L345] int tmp___0 ; [L349] CALL, EXPR isHighWaterSensorDry() [L996] int retValue_acc ; [L999] COND TRUE waterLevel < 2 [L1000] retValue_acc = 1 [L1001] return (retValue_acc); [L349] RET, EXPR isHighWaterSensorDry() [L349] tmp = isHighWaterSensorDry() [L351] COND TRUE \read(tmp) [L352] tmp___0 = 0 [L356] retValue_acc = tmp___0 [L357] return (retValue_acc); [L182] RET, EXPR isHighWaterLevel() [L182] tmp = isHighWaterLevel() [L184] COND FALSE !(\read(tmp)) [L190] FCALL processEnvironment__wrappee__base() [L221] RET processEnvironment__wrappee__highWaterSensor() [L247] RET processEnvironment__wrappee__methaneQuery() [L157] RET processEnvironment() [L163] CALL __utac_acc__Specification4_spec__1() [L391] int tmp ; [L392] int tmp___0 ; [L396] CALL, EXPR getWaterLevel() [L987] int retValue_acc ; [L990] retValue_acc = waterLevel [L991] return (retValue_acc); [L396] RET, EXPR getWaterLevel() [L396] tmp = getWaterLevel() [L398] COND FALSE !(tmp == 0) [L163] RET __utac_acc__Specification4_spec__1() [L119] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-27 23:32:22,680 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-27 23:32:22,879 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-27 23:32:23,078 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e51a9a1b-ed1d-4b62-875c-48c3154a3d14/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)