./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.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_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/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_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/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_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/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 aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 04:00:43,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 04:00:43,415 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Termination-32bit-Automizer_Default.epf [2024-11-28 04:00:43,421 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 04:00:43,421 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 04:00:43,461 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 04:00:43,461 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 04:00:43,462 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 04:00:43,463 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 04:00:43,463 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 04:00:43,465 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 04:00:43,465 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 04:00:43,465 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 04:00:43,465 INFO L151 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2024-11-28 04:00:43,466 INFO L153 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2024-11-28 04:00:43,466 INFO L153 SettingsManager]: * Use old map elimination=false [2024-11-28 04:00:43,466 INFO L153 SettingsManager]: * Use external solver (rank synthesis)=false [2024-11-28 04:00:43,466 INFO L153 SettingsManager]: * Use only trivial implications for array writes=true [2024-11-28 04:00:43,466 INFO L153 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2024-11-28 04:00:43,467 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 04:00:43,467 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 04:00:43,468 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 04:00:43,468 INFO L153 SettingsManager]: * Assume nondeterminstic values are in range=false [2024-11-28 04:00:43,468 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 04:00:43,468 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 04:00:43,468 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 04:00:43,469 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 04:00:43,469 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 04:00:43,469 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL_NO_AM [2024-11-28 04:00:43,469 INFO L151 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2024-11-28 04:00:43,469 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_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/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 -> aba011a2dee79947f4cca7910fc4583b21e1f3cb9acd1affa050aa7677352666 [2024-11-28 04:00:43,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 04:00:43,832 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 04:00:43,834 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 04:00:43,836 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 04:00:43,836 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 04:00:43,838 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2024-11-28 04:00:47,012 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/data/617b67ede/a5549e0fe59d4c9e9ceff968cc8d42b2/FLAG4be0e68ea [2024-11-28 04:00:47,337 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 04:00:47,338 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/sv-benchmarks/c/product-lines/minepump_spec5_product57.cil.c [2024-11-28 04:00:47,354 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/data/617b67ede/a5549e0fe59d4c9e9ceff968cc8d42b2/FLAG4be0e68ea [2024-11-28 04:00:47,374 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/data/617b67ede/a5549e0fe59d4c9e9ceff968cc8d42b2 [2024-11-28 04:00:47,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 04:00:47,379 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 04:00:47,381 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:47,382 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 04:00:47,387 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 04:00:47,389 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:47,390 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@207793be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47, skipping insertion in model container [2024-11-28 04:00:47,390 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:47,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 04:00:47,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:47,804 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 04:00:47,816 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-28 04:00:47,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-28 04:00:47,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] [2024-11-28 04:00:47,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] [2024-11-28 04:00:47,818 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] [2024-11-28 04:00:47,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] [2024-11-28 04:00:47,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] [2024-11-28 04:00:47,819 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] [2024-11-28 04:00:47,920 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 04:00:47,964 INFO L204 MainTranslator]: Completed translation [2024-11-28 04:00:47,965 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47 WrapperNode [2024-11-28 04:00:47,965 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 04:00:47,970 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:47,970 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 04:00:47,970 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 04:00:47,981 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,003 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,070 INFO L138 Inliner]: procedures = 58, calls = 104, calls flagged for inlining = 57, calls inlined = 105, statements flattened = 713 [2024-11-28 04:00:48,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 04:00:48,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 04:00:48,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 04:00:48,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 04:00:48,084 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,084 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,088 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,109 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]. [2024-11-28 04:00:48,109 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,110 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,123 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,125 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,134 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,137 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,139 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,144 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 04:00:48,145 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 04:00:48,145 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 04:00:48,145 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 04:00:48,146 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (1/1) ... [2024-11-28 04:00:48,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2024-11-28 04:00:48,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:48,201 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2024-11-28 04:00:48,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2024-11-28 04:00:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 04:00:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 04:00:48,244 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 04:00:48,245 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 04:00:48,348 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 04:00:48,350 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 04:00:49,258 INFO L? ?]: Removed 172 outVars from TransFormulas that were not future-live. [2024-11-28 04:00:49,259 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 04:00:49,282 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 04:00:49,283 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 04:00:49,283 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:49 BoogieIcfgContainer [2024-11-28 04:00:49,284 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 04:00:49,285 INFO L112 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2024-11-28 04:00:49,285 INFO L270 PluginConnector]: Initializing BuchiAutomizer... [2024-11-28 04:00:49,292 INFO L274 PluginConnector]: BuchiAutomizer initialized [2024-11-28 04:00:49,293 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:00:49,294 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 04:00:47" (1/3) ... [2024-11-28 04:00:49,296 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@671d679f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:00:49, skipping insertion in model container [2024-11-28 04:00:49,296 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:00:49,296 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 04:00:47" (2/3) ... [2024-11-28 04:00:49,298 INFO L204 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@671d679f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 04:00:49, skipping insertion in model container [2024-11-28 04:00:49,299 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2024-11-28 04:00:49,299 INFO L184 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:49" (3/3) ... [2024-11-28 04:00:49,302 INFO L363 chiAutomizerObserver]: Analyzing ICFG minepump_spec5_product57.cil.c [2024-11-28 04:00:49,384 INFO L300 stractBuchiCegarLoop]: Interprodecural is true [2024-11-28 04:00:49,385 INFO L301 stractBuchiCegarLoop]: Hoare is None [2024-11-28 04:00:49,386 INFO L302 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2024-11-28 04:00:49,386 INFO L303 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2024-11-28 04:00:49,386 INFO L304 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2024-11-28 04:00:49,386 INFO L305 stractBuchiCegarLoop]: Difference is false [2024-11-28 04:00:49,386 INFO L306 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2024-11-28 04:00:49,386 INFO L310 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2024-11-28 04:00:49,395 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.3571428571428572) internal successors, (266), 196 states have internal predecessors, (266), 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) [2024-11-28 04:00:49,435 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2024-11-28 04:00:49,438 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:00:49,438 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:00:49,447 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:49,447 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:49,447 INFO L332 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2024-11-28 04:00:49,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.3571428571428572) internal successors, (266), 196 states have internal predecessors, (266), 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) [2024-11-28 04:00:49,467 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 126 [2024-11-28 04:00:49,467 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:00:49,467 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:00:49,468 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:49,468 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:49,481 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:00:49,482 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume !(0 != ~systemActive~0);" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:00:49,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:49,491 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2024-11-28 04:00:49,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:49,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876248711] [2024-11-28 04:00:49,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:49,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:49,624 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:49,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:49,691 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:49,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:49,695 INFO L85 PathProgramCache]: Analyzing trace with hash -130738398, now seen corresponding path program 1 times [2024-11-28 04:00:49,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:49,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482040957] [2024-11-28 04:00:49,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:49,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:49,718 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:49,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:49,739 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:49,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:49,744 INFO L85 PathProgramCache]: Analyzing trace with hash -866679975, now seen corresponding path program 1 times [2024-11-28 04:00:49,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:49,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239079916] [2024-11-28 04:00:49,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:49,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:49,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:00:50,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239079916] [2024-11-28 04:00:50,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239079916] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:50,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1588380754] [2024-11-28 04:00:50,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:50,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:50,078 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:50,082 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:50,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 04:00:50,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:50,203 INFO L256 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 04:00:50,205 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:50,287 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:50,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1588380754] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:50,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:50,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 2, 2] total 6 [2024-11-28 04:00:50,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096158582] [2024-11-28 04:00:50,370 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:50,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:00:50,549 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:00:50,549 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:00:50,552 INFO L87 Difference]: Start difference. First operand has 197 states, 196 states have (on average 1.3571428571428572) internal successors, (266), 196 states have internal predecessors, (266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:50,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:50,702 INFO L93 Difference]: Finished difference Result 191 states and 249 transitions. [2024-11-28 04:00:50,703 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 191 states and 249 transitions. [2024-11-28 04:00:50,712 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-28 04:00:50,727 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 191 states to 181 states and 239 transitions. [2024-11-28 04:00:50,728 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 181 [2024-11-28 04:00:50,729 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 181 [2024-11-28 04:00:50,730 INFO L73 IsDeterministic]: Start isDeterministic. Operand 181 states and 239 transitions. [2024-11-28 04:00:50,732 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:00:50,732 INFO L218 hiAutomatonCegarLoop]: Abstraction has 181 states and 239 transitions. [2024-11-28 04:00:50,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states and 239 transitions. [2024-11-28 04:00:50,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2024-11-28 04:00:50,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 181 states have (on average 1.3204419889502763) internal successors, (239), 180 states have internal predecessors, (239), 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) [2024-11-28 04:00:50,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 239 transitions. [2024-11-28 04:00:50,785 INFO L240 hiAutomatonCegarLoop]: Abstraction has 181 states and 239 transitions. [2024-11-28 04:00:50,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:50,790 INFO L425 stractBuchiCegarLoop]: Abstraction has 181 states and 239 transitions. [2024-11-28 04:00:50,790 INFO L332 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2024-11-28 04:00:50,790 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 181 states and 239 transitions. [2024-11-28 04:00:50,793 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 120 [2024-11-28 04:00:50,793 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:00:50,793 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:00:50,794 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:50,794 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] [2024-11-28 04:00:50,794 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:00:50,794 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume !(0 == ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:00:50,795 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:50,795 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 2 times [2024-11-28 04:00:50,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:50,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294979375] [2024-11-28 04:00:50,795 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:50,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:50,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:50,816 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:50,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:50,834 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:50,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:50,841 INFO L85 PathProgramCache]: Analyzing trace with hash 897171173, now seen corresponding path program 1 times [2024-11-28 04:00:50,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:50,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [560196264] [2024-11-28 04:00:50,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:50,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:50,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:50,936 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:00:50,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [560196264] [2024-11-28 04:00:50,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [560196264] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:50,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303948341] [2024-11-28 04:00:50,937 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:50,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:50,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:50,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:50,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 04:00:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:51,016 INFO L256 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:00:51,017 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:51,032 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:51,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303948341] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:51,054 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:51,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2024-11-28 04:00:51,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849245675] [2024-11-28 04:00:51,055 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:51,055 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 04:00:51,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:00:51,056 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 04:00:51,056 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 04:00:51,057 INFO L87 Difference]: Start difference. First operand 181 states and 239 transitions. cyclomatic complexity: 60 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) [2024-11-28 04:00:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:51,212 INFO L93 Difference]: Finished difference Result 249 states and 317 transitions. [2024-11-28 04:00:51,213 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 249 states and 317 transitions. [2024-11-28 04:00:51,219 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2024-11-28 04:00:51,222 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 249 states to 249 states and 317 transitions. [2024-11-28 04:00:51,225 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 249 [2024-11-28 04:00:51,226 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 249 [2024-11-28 04:00:51,226 INFO L73 IsDeterministic]: Start isDeterministic. Operand 249 states and 317 transitions. [2024-11-28 04:00:51,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:00:51,231 INFO L218 hiAutomatonCegarLoop]: Abstraction has 249 states and 317 transitions. [2024-11-28 04:00:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states and 317 transitions. [2024-11-28 04:00:51,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 249. [2024-11-28 04:00:51,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 249 states, 249 states have (on average 1.2730923694779117) internal successors, (317), 248 states have internal predecessors, (317), 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) [2024-11-28 04:00:51,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 317 transitions. [2024-11-28 04:00:51,254 INFO L240 hiAutomatonCegarLoop]: Abstraction has 249 states and 317 transitions. [2024-11-28 04:00:51,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 04:00:51,255 INFO L425 stractBuchiCegarLoop]: Abstraction has 249 states and 317 transitions. [2024-11-28 04:00:51,256 INFO L332 stractBuchiCegarLoop]: ======== Iteration 3 ============ [2024-11-28 04:00:51,257 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 249 states and 317 transitions. [2024-11-28 04:00:51,263 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 170 [2024-11-28 04:00:51,263 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:00:51,263 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:00:51,264 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:51,264 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] [2024-11-28 04:00:51,264 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:00:51,264 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1;" "assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1;" "assume !(2 != __utac_acc__Specification5_spec__3_~tmp~4#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:00:51,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:51,265 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 3 times [2024-11-28 04:00:51,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:51,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718157085] [2024-11-28 04:00:51,265 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:51,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:51,285 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:51,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:51,306 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:51,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:51,307 INFO L85 PathProgramCache]: Analyzing trace with hash -57034019, now seen corresponding path program 1 times [2024-11-28 04:00:51,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:51,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434446927] [2024-11-28 04:00:51,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:51,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:51,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL_NO_AM found an infeasible trace [2024-11-28 04:00:51,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434446927] [2024-11-28 04:00:51,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434446927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:51,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393395755] [2024-11-28 04:00:51,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:51,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:51,475 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:51,480 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:51,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 04:00:51,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:51,561 INFO L256 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 04:00:51,563 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:51,641 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:51,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393395755] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:51,702 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:51,702 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-28 04:00:51,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716091422] [2024-11-28 04:00:51,703 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:51,703 INFO L764 eck$LassoCheckResult]: loop already infeasible [2024-11-28 04:00:51,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2024-11-28 04:00:51,704 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:00:51,704 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-28 04:00:51,704 INFO L87 Difference]: Start difference. First operand 249 states and 317 transitions. cyclomatic complexity: 70 Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 8 states have internal predecessors, (40), 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) [2024-11-28 04:00:51,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:51,952 INFO L93 Difference]: Finished difference Result 488 states and 610 transitions. [2024-11-28 04:00:51,952 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 488 states and 610 transitions. [2024-11-28 04:00:51,958 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 338 [2024-11-28 04:00:51,962 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 488 states to 488 states and 610 transitions. [2024-11-28 04:00:51,962 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 488 [2024-11-28 04:00:51,963 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 488 [2024-11-28 04:00:51,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 488 states and 610 transitions. [2024-11-28 04:00:51,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2024-11-28 04:00:51,966 INFO L218 hiAutomatonCegarLoop]: Abstraction has 488 states and 610 transitions. [2024-11-28 04:00:51,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states and 610 transitions. [2024-11-28 04:00:51,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 488. [2024-11-28 04:00:51,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 488 states have (on average 1.25) internal successors, (610), 487 states have internal predecessors, (610), 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) [2024-11-28 04:00:51,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 610 transitions. [2024-11-28 04:00:51,992 INFO L240 hiAutomatonCegarLoop]: Abstraction has 488 states and 610 transitions. [2024-11-28 04:00:51,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:00:51,993 INFO L425 stractBuchiCegarLoop]: Abstraction has 488 states and 610 transitions. [2024-11-28 04:00:51,994 INFO L332 stractBuchiCegarLoop]: ======== Iteration 4 ============ [2024-11-28 04:00:51,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 488 states and 610 transitions. [2024-11-28 04:00:51,998 INFO L131 ngComponentsAnalysis]: Automaton has 3 accepting balls. 338 [2024-11-28 04:00:51,998 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2024-11-28 04:00:51,998 INFO L119 BuchiIsEmpty]: Starting construction of run [2024-11-28 04:00:51,999 INFO L148 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:51,999 INFO L149 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:52,000 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);~cleanupTimeShifts~0 := 4;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~switchedOnBeforeTS~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1;" "assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret5#1, main_~retValue_acc~2#1, main_~tmp~0#1;havoc main_~retValue_acc~2#1;havoc main_~tmp~0#1;assume { :begin_inline_select_helpers } true;" "assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true;" "assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1;" "main_#t~ret5#1 := valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;assume { :end_inline_valid_product } true;main_~tmp~0#1 := main_#t~ret5#1;havoc main_#t~ret5#1;" "assume 0 != main_~tmp~0#1;assume { :begin_inline_setup } true;" "assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification5_spec__1 } true;~switchedOnBeforeTS~0 := 0;" "assume { :end_inline___utac_acc__Specification5_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_#t~nondet40#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0;" [2024-11-28 04:00:52,000 INFO L749 eck$LassoCheckResult]: Loop: "assume test_~splverifierCounter~0#1 < 4;" "havoc test_#t~nondet37#1;test_~tmp~5#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1;" "assume !(0 != test_~tmp~5#1);" "havoc test_#t~nondet38#1;test_~tmp___0~1#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1;" "assume !(0 != test_~tmp___0~1#1);" "havoc test_#t~nondet39#1;test_~tmp___2~0#1 := test_#t~nondet39#1;havoc test_#t~nondet39#1;" "assume 0 != test_~tmp___2~0#1;" "assume { :begin_inline_timeShift } true;assume { :begin_inline___utac_acc__Specification5_spec__2 } true;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__2_#t~ret34#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;~switchedOnBeforeTS~0 := __utac_acc__Specification5_spec__2_#t~ret34#1;havoc __utac_acc__Specification5_spec__2_#t~ret34#1;" "havoc __utac_acc__Specification5_spec__2_#t~ret34#1;assume { :end_inline___utac_acc__Specification5_spec__2 } true;" "assume !(0 != ~pumpRunning~0);" "assume 0 != ~systemActive~0;assume { :begin_inline_processEnvironment } true;havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;havoc processEnvironment_~tmp~7#1;" "assume !(0 != ~pumpRunning~0);assume { :begin_inline_processEnvironment__wrappee__highWaterSensor } true;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;havoc processEnvironment__wrappee__highWaterSensor_~tmp~6#1;" "assume 0 == ~pumpRunning~0;assume { :begin_inline_isHighWaterLevel } true;havoc isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;havoc isHighWaterLevel_~retValue_acc~12#1;havoc isHighWaterLevel_~tmp~9#1;havoc isHighWaterLevel_~tmp___0~2#1;assume { :begin_inline_isHighWaterSensorDry } true;havoc isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;" "assume ~waterLevel~0 < 2;isHighWaterSensorDry_~retValue_acc~5#1 := 1;isHighWaterSensorDry_#res#1 := isHighWaterSensorDry_~retValue_acc~5#1;" "isHighWaterLevel_#t~ret53#1 := isHighWaterSensorDry_#res#1;havoc isHighWaterSensorDry_~retValue_acc~5#1;assume { :end_inline_isHighWaterSensorDry } true;isHighWaterLevel_~tmp~9#1 := isHighWaterLevel_#t~ret53#1;havoc isHighWaterLevel_#t~ret53#1;" "assume 0 != isHighWaterLevel_~tmp~9#1;isHighWaterLevel_~tmp___0~2#1 := 0;" "isHighWaterLevel_~retValue_acc~12#1 := isHighWaterLevel_~tmp___0~2#1;isHighWaterLevel_#res#1 := isHighWaterLevel_~retValue_acc~12#1;" "processEnvironment__wrappee__highWaterSensor_#t~ret41#1 := isHighWaterLevel_#res#1;havoc isHighWaterLevel_#t~ret53#1, isHighWaterLevel_~retValue_acc~12#1, isHighWaterLevel_~tmp~9#1, isHighWaterLevel_~tmp___0~2#1;assume { :end_inline_isHighWaterLevel } true;processEnvironment__wrappee__highWaterSensor_~tmp~6#1 := processEnvironment__wrappee__highWaterSensor_#t~ret41#1;havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1;" "assume !(0 != processEnvironment__wrappee__highWaterSensor_~tmp~6#1);assume { :begin_inline_processEnvironment__wrappee__base } true;" "assume { :end_inline_processEnvironment__wrappee__base } true;" "havoc processEnvironment__wrappee__highWaterSensor_#t~ret41#1, processEnvironment__wrappee__highWaterSensor_~tmp~6#1;assume { :end_inline_processEnvironment__wrappee__highWaterSensor } true;" "havoc processEnvironment_#t~ret42#1, processEnvironment_~tmp~7#1;assume { :end_inline_processEnvironment } true;" "assume { :begin_inline___utac_acc__Specification5_spec__3 } true;havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;havoc __utac_acc__Specification5_spec__3_~tmp~4#1;havoc __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;havoc getWaterLevel_~retValue_acc~4#1;getWaterLevel_~retValue_acc~4#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~4#1;" "__utac_acc__Specification5_spec__3_#t~ret35#1 := getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~4#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification5_spec__3_~tmp~4#1 := __utac_acc__Specification5_spec__3_#t~ret35#1;havoc __utac_acc__Specification5_spec__3_#t~ret35#1;" "assume 2 != __utac_acc__Specification5_spec__3_~tmp~4#1;assume { :begin_inline_isPumpRunning } true;havoc isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;havoc isPumpRunning_~retValue_acc~11#1;isPumpRunning_~retValue_acc~11#1 := ~pumpRunning~0;isPumpRunning_#res#1 := isPumpRunning_~retValue_acc~11#1;" "__utac_acc__Specification5_spec__3_#t~ret36#1 := isPumpRunning_#res#1;havoc isPumpRunning_~retValue_acc~11#1;assume { :end_inline_isPumpRunning } true;__utac_acc__Specification5_spec__3_~tmp___0~0#1 := __utac_acc__Specification5_spec__3_#t~ret36#1;havoc __utac_acc__Specification5_spec__3_#t~ret36#1;" "assume !(0 != __utac_acc__Specification5_spec__3_~tmp___0~0#1);" "havoc __utac_acc__Specification5_spec__3_#t~ret35#1, __utac_acc__Specification5_spec__3_#t~ret36#1, __utac_acc__Specification5_spec__3_~tmp~4#1, __utac_acc__Specification5_spec__3_~tmp___0~0#1;assume { :end_inline___utac_acc__Specification5_spec__3 } true;" "assume { :end_inline_timeShift } true;" [2024-11-28 04:00:52,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:52,000 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 4 times [2024-11-28 04:00:52,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:52,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095341537] [2024-11-28 04:00:52,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:52,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:52,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,010 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,023 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:52,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:52,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1003880248, now seen corresponding path program 1 times [2024-11-28 04:00:52,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:52,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959304272] [2024-11-28 04:00:52,024 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:52,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,037 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:52,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,048 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:52,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:52,049 INFO L85 PathProgramCache]: Analyzing trace with hash -961977247, now seen corresponding path program 1 times [2024-11-28 04:00:52,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2024-11-28 04:00:52,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255971028] [2024-11-28 04:00:52,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:52,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:52,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,064 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:52,085 INFO L130 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2024-11-28 04:00:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:53,573 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 04:00:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 04:00:53,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 04:00:53 BoogieIcfgContainer [2024-11-28 04:00:53,677 INFO L131 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2024-11-28 04:00:53,678 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 04:00:53,678 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 04:00:53,678 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 04:00:53,679 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 04:00:49" (3/4) ... [2024-11-28 04:00:53,682 INFO L143 WitnessPrinter]: Generating witness for non-termination counterexample [2024-11-28 04:00:53,762 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 04:00:53,762 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 04:00:53,765 INFO L158 Benchmark]: Toolchain (without parser) took 6383.58ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 70.5MB in the end (delta: 21.2MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-11-28 04:00:53,766 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:53,766 INFO L158 Benchmark]: CACSL2BoogieTranslator took 584.59ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 72.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 04:00:53,766 INFO L158 Benchmark]: Boogie Procedure Inliner took 101.57ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 69.4MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 04:00:53,767 INFO L158 Benchmark]: Boogie Preprocessor took 72.27ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.8MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:53,767 INFO L158 Benchmark]: RCFGBuilder took 1138.98ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 88.7MB in the end (delta: -22.9MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. [2024-11-28 04:00:53,767 INFO L158 Benchmark]: BuchiAutomizer took 4392.54ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 73.6MB in the end (delta: 15.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-28 04:00:53,768 INFO L158 Benchmark]: Witness Printer took 84.12ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 70.5MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 04:00:53,772 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 117.4MB. Free memory is still 74.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 584.59ms. Allocated memory is still 117.4MB. Free memory was 91.5MB in the beginning and 72.9MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 101.57ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 69.4MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 72.27ms. Allocated memory is still 117.4MB. Free memory was 69.4MB in the beginning and 65.8MB in the end (delta: 3.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1138.98ms. Allocated memory is still 117.4MB. Free memory was 65.8MB in the beginning and 88.7MB in the end (delta: -22.9MB). Peak memory consumption was 30.5MB. Max. memory is 16.1GB. * BuchiAutomizer took 4392.54ms. Allocated memory is still 117.4MB. Free memory was 88.7MB in the beginning and 73.6MB in the end (delta: 15.1MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 84.12ms. Allocated memory is still 117.4MB. Free memory was 73.6MB in the beginning and 70.5MB in the end (delta: 3.1MB). 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,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [96] - GenericResultAtLocation [Line: 199]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [199] - GenericResultAtLocation [Line: 308]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [308] - GenericResultAtLocation [Line: 674]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [674] - GenericResultAtLocation [Line: 724]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [724] - GenericResultAtLocation [Line: 789]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [789] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 3 terminating modules (3 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.3 modules have a trivial ranking function, the largest among these consists of 8 locations. The remainder module has 488 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 4.2s and 4 iterations. TraceHistogramMax:1. Analysis of lassos took 3.3s. Construction of modules took 0.2s. Büchi inclusion checks took 0.4s. Highest rank in rank-based complementation 0. Minimization of det autom 3. Minimization of nondet autom 0. Automata minimization 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1060 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1060 mSDsluCounter, 1986 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1275 mSDsCounter, 65 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 153 IncrementalHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 65 mSolverCounterUnsat, 711 mSDtfsCounter, 153 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown LassoAnalysisResults: nont1 unkn0 SFLI2 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s InitialAbstractionConstructionTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - LassoShapedNonTerminationArgument [Line: 737]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite program execution. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 737]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L97] int cleanupTimeShifts = 4; [L206] int waterLevel = 1; [L207] int methaneLevelCritical = 0; [L478] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L676] int switchedOnBeforeTS ; [L792] int pumpRunning = 0; [L793] int systemActive = 1; VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L177] int retValue_acc ; [L178] int tmp ; [L182] FCALL select_helpers() [L183] FCALL select_features() [L184] CALL, EXPR valid_product() [L88] int retValue_acc ; [L91] retValue_acc = 1 [L92] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L184] RET, EXPR valid_product() [L184] tmp = valid_product() [L186] COND TRUE \read(tmp) [L188] FCALL setup() [L189] CALL runTest() [L170] CALL __utac_acc__Specification5_spec__1() [L681] switchedOnBeforeTS = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] [L170] RET __utac_acc__Specification5_spec__1() [L171] CALL test() [L726] int splverifierCounter ; [L727] int tmp ; [L728] int tmp___0 ; [L729] int tmp___1 ; [L730] int tmp___2 ; [L733] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, switchedOnBeforeTS=0, systemActive=1, waterLevel=1] Loop: [L737] COND TRUE splverifierCounter < 4 [L743] tmp = __VERIFIER_nondet_int() [L745] COND FALSE !(\read(tmp)) [L753] tmp___0 = __VERIFIER_nondet_int() [L755] COND FALSE !(\read(tmp___0)) [L763] tmp___2 = __VERIFIER_nondet_int() [L765] COND TRUE \read(tmp___2) [L778] CALL timeShift() [L800] CALL __utac_acc__Specification5_spec__2() [L690] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L690] RET, EXPR isPumpRunning() [L690] switchedOnBeforeTS = isPumpRunning() [L800] RET __utac_acc__Specification5_spec__2() [L802] COND FALSE !(\read(pumpRunning)) [L809] COND TRUE \read(systemActive) [L811] CALL processEnvironment() [L857] int tmp ; [L860] COND FALSE !(\read(pumpRunning)) [L875] CALL processEnvironment__wrappee__highWaterSensor() [L831] int tmp ; [L834] COND TRUE ! pumpRunning [L836] CALL, EXPR isHighWaterLevel() [L972] int retValue_acc ; [L973] int tmp ; [L974] int tmp___0 ; [L978] CALL, EXPR isHighWaterSensorDry() [L286] int retValue_acc ; [L289] COND TRUE waterLevel < 2 [L290] retValue_acc = 1 [L291] return (retValue_acc); [L978] RET, EXPR isHighWaterSensorDry() [L978] tmp = isHighWaterSensorDry() [L980] COND TRUE \read(tmp) [L981] tmp___0 = 0 [L985] retValue_acc = tmp___0 [L986] return (retValue_acc); [L836] RET, EXPR isHighWaterLevel() [L836] tmp = isHighWaterLevel() [L838] COND FALSE !(\read(tmp)) [L844] FCALL processEnvironment__wrappee__base() [L875] RET processEnvironment__wrappee__highWaterSensor() [L811] RET processEnvironment() [L817] CALL __utac_acc__Specification5_spec__3() [L696] int tmp ; [L697] int tmp___0 ; [L701] CALL, EXPR getWaterLevel() [L277] int retValue_acc ; [L280] retValue_acc = waterLevel [L281] return (retValue_acc); [L701] RET, EXPR getWaterLevel() [L701] tmp = getWaterLevel() [L703] COND TRUE tmp != 2 [L705] CALL, EXPR isPumpRunning() [L927] int retValue_acc ; [L930] retValue_acc = pumpRunning [L931] return (retValue_acc); [L705] RET, EXPR isPumpRunning() [L705] tmp___0 = isPumpRunning() [L707] COND FALSE !(\read(tmp___0)) [L817] RET __utac_acc__Specification5_spec__3() [L778] RET timeShift() End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2024-11-28 04:00:53,803 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 04:00:54,002 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:54,202 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 04:00:54,403 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4b7ec4ac-0d69-4714-9e22-4fc280a43af5/bin/uautomizer-verify-aQ6SnzHsRB/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)