./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/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_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:22:44,859 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:22:44,933 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:22:44,940 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:22:44,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:22:44,971 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:22:44,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:22:44,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:22:44,975 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:22:44,976 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:22:44,976 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:22:44,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:22:44,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:22:44,977 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:22:44,977 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:22:44,977 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:22:44,978 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:22:44,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:22:44,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:44,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:44,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:44,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:44,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:22:44,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:44,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:22:44,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:22:44,981 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_287c8065-569f-420f-893f-b604d3db0855/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(G ! call(reach_error())) ) 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 -> 34d4dbed37590326da938d00ced1aba27649a4f6be46ad5130f0beeedcfaf5dd [2024-11-28 02:22:45,293 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:22:45,304 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:22:45,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:22:45,310 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:22:45,310 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:22:45,311 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2024-11-28 02:22:48,336 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/data/0b3d25f3c/ed12fbb1277b464eb588ae887d61c766/FLAGbd0b43520 [2024-11-28 02:22:48,668 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:22:48,671 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c [2024-11-28 02:22:48,688 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/data/0b3d25f3c/ed12fbb1277b464eb588ae887d61c766/FLAGbd0b43520 [2024-11-28 02:22:48,711 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/data/0b3d25f3c/ed12fbb1277b464eb588ae887d61c766 [2024-11-28 02:22:48,715 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:22:48,717 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:22:48,719 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:48,720 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:22:48,726 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:22:48,728 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:48" (1/1) ... [2024-11-28 02:22:48,729 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42fe37ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:48, skipping insertion in model container [2024-11-28 02:22:48,730 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:22:48" (1/1) ... [2024-11-28 02:22:48,773 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:22:49,086 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2024-11-28 02:22:49,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:49,124 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:22:49,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-11-28 02:22:49,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2024-11-28 02:22:49,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [593] [2024-11-28 02:22:49,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [663] [2024-11-28 02:22:49,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [703] [2024-11-28 02:22:49,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] [2024-11-28 02:22:49,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [750] [2024-11-28 02:22:49,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [847] [2024-11-28 02:22:49,227 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/sv-benchmarks/c/product-lines/minepump_spec2_product35.cil.c[15769,15782] [2024-11-28 02:22:49,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:22:49,255 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:22:49,255 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49 WrapperNode [2024-11-28 02:22:49,255 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:22:49,256 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:49,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:22:49,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:22:49,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,277 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,309 INFO L138 Inliner]: procedures = 54, calls = 96, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 178 [2024-11-28 02:22:49,309 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:22:49,310 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:22:49,310 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:22:49,310 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:22:49,317 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,317 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,319 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,332 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 02:22:49,332 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,332 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,338 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,343 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,344 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,345 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,347 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:22:49,351 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:22:49,351 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:22:49,351 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:22:49,355 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (1/1) ... [2024-11-28 02:22:49,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:22:49,377 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:49,390 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:22:49,394 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:22:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:22:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-28 02:22:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-28 02:22:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-28 02:22:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-28 02:22:49,420 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-28 02:22:49,420 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-28 02:22:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-28 02:22:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-28 02:22:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-28 02:22:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-28 02:22:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:22:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-28 02:22:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-28 02:22:49,421 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:22:49,421 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:22:49,505 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:22:49,507 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:22:49,766 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-28 02:22:49,767 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:22:49,778 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:22:49,778 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:22:49,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:49 BoogieIcfgContainer [2024-11-28 02:22:49,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:22:49,782 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:22:49,782 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:22:49,788 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:22:49,788 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:22:48" (1/3) ... [2024-11-28 02:22:49,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3017b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:49, skipping insertion in model container [2024-11-28 02:22:49,789 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:22:49" (2/3) ... [2024-11-28 02:22:49,789 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3017b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:22:49, skipping insertion in model container [2024-11-28 02:22:49,790 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:49" (3/3) ... [2024-11-28 02:22:49,791 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product35.cil.c [2024-11-28 02:22:49,811 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:22:49,812 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec2_product35.cil.c that has 7 procedures, 78 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 02:22:49,884 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:22:49,895 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@188d0b10, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:22:49,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:22:49,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 67 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-28 02:22:49,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-28 02:22:49,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:49,909 INFO L218 NwaCegarLoop]: trace 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] [2024-11-28 02:22:49,910 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:49,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:49,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1594528397, now seen corresponding path program 1 times [2024-11-28 02:22:49,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225944593] [2024-11-28 02:22:49,925 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:49,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:50,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:50,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:50,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225944593] [2024-11-28 02:22:50,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225944593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:50,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:50,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:50,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547352444] [2024-11-28 02:22:50,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:50,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:50,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:50,303 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:50,304 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:50,306 INFO L87 Difference]: Start difference. First operand has 78 states, 61 states have (on average 1.4098360655737705) internal successors, (86), 67 states have internal predecessors, (86), 9 states have call successors, (9), 6 states have call predecessors, (9), 6 states have return successors, (9), 8 states have call predecessors, (9), 9 states have call successors, (9) Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:50,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:50,335 INFO L93 Difference]: Finished difference Result 135 states and 182 transitions. [2024-11-28 02:22:50,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:50,338 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-28 02:22:50,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:50,347 INFO L225 Difference]: With dead ends: 135 [2024-11-28 02:22:50,347 INFO L226 Difference]: Without dead ends: 61 [2024-11-28 02:22:50,350 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:50,353 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 17 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:50,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 142 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:50,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-28 02:22:50,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-28 02:22:50,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 49 states have (on average 1.346938775510204) internal successors, (66), 54 states have internal predecessors, (66), 6 states have call successors, (6), 5 states have call predecessors, (6), 5 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-28 02:22:50,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2024-11-28 02:22:50,391 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 25 [2024-11-28 02:22:50,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:50,391 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2024-11-28 02:22:50,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:50,392 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2024-11-28 02:22:50,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-28 02:22:50,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:50,393 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:50,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:22:50,394 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:50,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:50,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1886956019, now seen corresponding path program 1 times [2024-11-28 02:22:50,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:50,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134250142] [2024-11-28 02:22:50,395 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:50,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:50,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:50,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:50,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:50,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134250142] [2024-11-28 02:22:50,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [134250142] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:50,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:50,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:22:50,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469349343] [2024-11-28 02:22:50,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:50,633 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:22:50,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:50,634 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:22:50,634 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:22:50,634 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:50,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:50,843 INFO L93 Difference]: Finished difference Result 205 states and 271 transitions. [2024-11-28 02:22:50,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:22:50,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 29 [2024-11-28 02:22:50,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:50,846 INFO L225 Difference]: With dead ends: 205 [2024-11-28 02:22:50,846 INFO L226 Difference]: Without dead ends: 152 [2024-11-28 02:22:50,847 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:22:50,850 INFO L435 NwaCegarLoop]: 92 mSDtfsCounter, 178 mSDsluCounter, 255 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 347 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:50,850 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 347 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:50,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-11-28 02:22:50,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 142. [2024-11-28 02:22:50,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 111 states have (on average 1.3873873873873874) internal successors, (154), 122 states have internal predecessors, (154), 16 states have call successors, (16), 14 states have call predecessors, (16), 14 states have return successors, (17), 14 states have call predecessors, (17), 16 states have call successors, (17) [2024-11-28 02:22:50,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 187 transitions. [2024-11-28 02:22:50,897 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 187 transitions. Word has length 29 [2024-11-28 02:22:50,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:50,897 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 187 transitions. [2024-11-28 02:22:50,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:50,898 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 187 transitions. [2024-11-28 02:22:50,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-28 02:22:50,902 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:50,902 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:50,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:22:50,903 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:50,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:50,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1850382850, now seen corresponding path program 1 times [2024-11-28 02:22:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:50,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819822130] [2024-11-28 02:22:50,904 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:50,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:50,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:50,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:50,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819822130] [2024-11-28 02:22:50,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819822130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:50,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:50,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:50,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765082254] [2024-11-28 02:22:50,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:50,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:50,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:50,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:50,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:50,986 INFO L87 Difference]: Start difference. First operand 142 states and 187 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:51,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:51,061 INFO L93 Difference]: Finished difference Result 349 states and 469 transitions. [2024-11-28 02:22:51,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:51,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2024-11-28 02:22:51,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:51,066 INFO L225 Difference]: With dead ends: 349 [2024-11-28 02:22:51,066 INFO L226 Difference]: Without dead ends: 215 [2024-11-28 02:22:51,067 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:51,070 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 66 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:51,070 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 123 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:51,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-28 02:22:51,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 213. [2024-11-28 02:22:51,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 164 states have (on average 1.3597560975609757) internal successors, (223), 177 states have internal predecessors, (223), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 02:22:51,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 277 transitions. [2024-11-28 02:22:51,124 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 277 transitions. Word has length 34 [2024-11-28 02:22:51,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:51,125 INFO L471 AbstractCegarLoop]: Abstraction has 213 states and 277 transitions. [2024-11-28 02:22:51,125 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:51,125 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 277 transitions. [2024-11-28 02:22:51,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-28 02:22:51,126 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:51,126 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:51,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:22:51,126 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:51,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:51,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1194402168, now seen corresponding path program 1 times [2024-11-28 02:22:51,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:51,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409612081] [2024-11-28 02:22:51,127 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:51,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:51,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:51,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:51,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:51,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409612081] [2024-11-28 02:22:51,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409612081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:51,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:51,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:22:51,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086380096] [2024-11-28 02:22:51,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:51,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:51,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:51,252 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:51,252 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:51,252 INFO L87 Difference]: Start difference. First operand 213 states and 277 transitions. Second operand has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:51,372 INFO L93 Difference]: Finished difference Result 415 states and 546 transitions. [2024-11-28 02:22:51,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:51,375 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 33 [2024-11-28 02:22:51,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:51,376 INFO L225 Difference]: With dead ends: 415 [2024-11-28 02:22:51,377 INFO L226 Difference]: Without dead ends: 210 [2024-11-28 02:22:51,382 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:22:51,383 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 59 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:51,383 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 264 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:51,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-28 02:22:51,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2024-11-28 02:22:51,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 161 states have (on average 1.329192546583851) internal successors, (214), 174 states have internal predecessors, (214), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 02:22:51,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 268 transitions. [2024-11-28 02:22:51,420 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 268 transitions. Word has length 33 [2024-11-28 02:22:51,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:51,421 INFO L471 AbstractCegarLoop]: Abstraction has 210 states and 268 transitions. [2024-11-28 02:22:51,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,422 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 268 transitions. [2024-11-28 02:22:51,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:22:51,424 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:51,424 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:51,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:22:51,425 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:51,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:51,425 INFO L85 PathProgramCache]: Analyzing trace with hash -1387707865, now seen corresponding path program 1 times [2024-11-28 02:22:51,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:51,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456738713] [2024-11-28 02:22:51,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:51,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:51,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:51,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:51,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456738713] [2024-11-28 02:22:51,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456738713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:51,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:51,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 02:22:51,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408440419] [2024-11-28 02:22:51,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:51,562 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:22:51,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:51,564 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:22:51,564 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:51,564 INFO L87 Difference]: Start difference. First operand 210 states and 268 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:51,609 INFO L93 Difference]: Finished difference Result 416 states and 544 transitions. [2024-11-28 02:22:51,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:22:51,611 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-28 02:22:51,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:51,612 INFO L225 Difference]: With dead ends: 416 [2024-11-28 02:22:51,612 INFO L226 Difference]: Without dead ends: 214 [2024-11-28 02:22:51,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:22:51,616 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 0 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:51,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 222 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:51,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-28 02:22:51,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2024-11-28 02:22:51,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 165 states have (on average 1.3212121212121213) internal successors, (218), 178 states have internal predecessors, (218), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 02:22:51,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 272 transitions. [2024-11-28 02:22:51,650 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 272 transitions. Word has length 38 [2024-11-28 02:22:51,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:51,650 INFO L471 AbstractCegarLoop]: Abstraction has 214 states and 272 transitions. [2024-11-28 02:22:51,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,650 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 272 transitions. [2024-11-28 02:22:51,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:22:51,651 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:51,654 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:51,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:22:51,654 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:51,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:51,655 INFO L85 PathProgramCache]: Analyzing trace with hash 200640037, now seen corresponding path program 1 times [2024-11-28 02:22:51,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:51,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993247765] [2024-11-28 02:22:51,655 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:51,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:51,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:51,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:51,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:51,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993247765] [2024-11-28 02:22:51,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993247765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:51,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:51,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:22:51,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051246630] [2024-11-28 02:22:51,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:51,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:22:51,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:51,782 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:22:51,782 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:51,782 INFO L87 Difference]: Start difference. First operand 214 states and 272 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:51,831 INFO L93 Difference]: Finished difference Result 426 states and 549 transitions. [2024-11-28 02:22:51,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:22:51,835 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-28 02:22:51,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:51,838 INFO L225 Difference]: With dead ends: 426 [2024-11-28 02:22:51,838 INFO L226 Difference]: Without dead ends: 220 [2024-11-28 02:22:51,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:22:51,843 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 293 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:51,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 293 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:51,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2024-11-28 02:22:51,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2024-11-28 02:22:51,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 171 states have (on average 1.3099415204678362) internal successors, (224), 184 states have internal predecessors, (224), 24 states have call successors, (24), 24 states have call predecessors, (24), 24 states have return successors, (30), 24 states have call predecessors, (30), 24 states have call successors, (30) [2024-11-28 02:22:51,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 278 transitions. [2024-11-28 02:22:51,874 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 278 transitions. Word has length 38 [2024-11-28 02:22:51,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:51,874 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 278 transitions. [2024-11-28 02:22:51,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:51,875 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 278 transitions. [2024-11-28 02:22:51,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-28 02:22:51,878 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:51,879 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:51,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:22:51,879 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:51,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:51,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1218315689, now seen corresponding path program 1 times [2024-11-28 02:22:51,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918904352] [2024-11-28 02:22:51,880 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:51,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:51,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:51,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:51,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918904352] [2024-11-28 02:22:51,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918904352] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:51,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:51,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:51,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527387801] [2024-11-28 02:22:51,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:51,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:51,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:51,984 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:51,984 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:51,985 INFO L87 Difference]: Start difference. First operand 220 states and 278 transitions. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:52,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:52,041 INFO L93 Difference]: Finished difference Result 544 states and 697 transitions. [2024-11-28 02:22:52,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:52,042 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 38 [2024-11-28 02:22:52,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:52,045 INFO L225 Difference]: With dead ends: 544 [2024-11-28 02:22:52,045 INFO L226 Difference]: Without dead ends: 332 [2024-11-28 02:22:52,046 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:52,047 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 38 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:52,048 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 140 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:52,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2024-11-28 02:22:52,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 332. [2024-11-28 02:22:52,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 332 states, 258 states have (on average 1.2790697674418605) internal successors, (330), 274 states have internal predecessors, (330), 38 states have call successors, (38), 38 states have call predecessors, (38), 35 states have return successors, (45), 35 states have call predecessors, (45), 38 states have call successors, (45) [2024-11-28 02:22:52,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 332 states to 332 states and 413 transitions. [2024-11-28 02:22:52,089 INFO L78 Accepts]: Start accepts. Automaton has 332 states and 413 transitions. Word has length 38 [2024-11-28 02:22:52,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:52,090 INFO L471 AbstractCegarLoop]: Abstraction has 332 states and 413 transitions. [2024-11-28 02:22:52,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-28 02:22:52,090 INFO L276 IsEmpty]: Start isEmpty. Operand 332 states and 413 transitions. [2024-11-28 02:22:52,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-28 02:22:52,092 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:52,093 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:52,093 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:22:52,093 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:52,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash 651171023, now seen corresponding path program 1 times [2024-11-28 02:22:52,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:52,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492817017] [2024-11-28 02:22:52,095 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:52,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:22:52,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:52,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492817017] [2024-11-28 02:22:52,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492817017] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:22:52,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:22:52,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:22:52,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875678233] [2024-11-28 02:22:52,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:52,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:22:52,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:52,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:22:52,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:52,205 INFO L87 Difference]: Start difference. First operand 332 states and 413 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:52,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:52,264 INFO L93 Difference]: Finished difference Result 482 states and 610 transitions. [2024-11-28 02:22:52,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:22:52,265 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 42 [2024-11-28 02:22:52,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:52,268 INFO L225 Difference]: With dead ends: 482 [2024-11-28 02:22:52,268 INFO L226 Difference]: Without dead ends: 480 [2024-11-28 02:22:52,269 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:22:52,270 INFO L435 NwaCegarLoop]: 77 mSDtfsCounter, 45 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:52,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 143 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:22:52,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2024-11-28 02:22:52,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 435. [2024-11-28 02:22:52,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 435 states, 340 states have (on average 1.3) internal successors, (442), 362 states have internal predecessors, (442), 49 states have call successors, (49), 49 states have call predecessors, (49), 45 states have return successors, (68), 45 states have call predecessors, (68), 49 states have call successors, (68) [2024-11-28 02:22:52,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 559 transitions. [2024-11-28 02:22:52,331 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 559 transitions. Word has length 42 [2024-11-28 02:22:52,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:52,336 INFO L471 AbstractCegarLoop]: Abstraction has 435 states and 559 transitions. [2024-11-28 02:22:52,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-28 02:22:52,336 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 559 transitions. [2024-11-28 02:22:52,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 02:22:52,341 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:52,341 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:52,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:22:52,341 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:52,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:52,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1812815429, now seen corresponding path program 1 times [2024-11-28 02:22:52,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:52,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15354306] [2024-11-28 02:22:52,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:52,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:52,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:52,625 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 19 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 02:22:52,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:22:52,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15354306] [2024-11-28 02:22:52,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15354306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:52,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1765818453] [2024-11-28 02:22:52,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:52,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:22:52,626 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:22:52,630 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:22:52,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:22:52,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:22:52,747 INFO L256 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-28 02:22:52,755 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:22:52,974 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 02:22:52,974 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:22:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-28 02:22:53,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1765818453] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:22:53,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:22:53,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7, 5] total 11 [2024-11-28 02:22:53,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122689256] [2024-11-28 02:22:53,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:22:53,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:22:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:22:53,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:22:53,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-28 02:22:53,134 INFO L87 Difference]: Start difference. First operand 435 states and 559 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:22:53,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:22:53,317 INFO L93 Difference]: Finished difference Result 1235 states and 1634 transitions. [2024-11-28 02:22:53,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 02:22:53,319 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 72 [2024-11-28 02:22:53,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:22:53,326 INFO L225 Difference]: With dead ends: 1235 [2024-11-28 02:22:53,326 INFO L226 Difference]: Without dead ends: 808 [2024-11-28 02:22:53,330 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 140 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:22:53,331 INFO L435 NwaCegarLoop]: 76 mSDtfsCounter, 42 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 346 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:22:53,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 346 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 02:22:53,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-28 02:22:53,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 743. [2024-11-28 02:22:53,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 743 states, 573 states have (on average 1.268760907504363) internal successors, (727), 612 states have internal predecessors, (727), 87 states have call successors, (87), 87 states have call predecessors, (87), 82 states have return successors, (123), 80 states have call predecessors, (123), 87 states have call successors, (123) [2024-11-28 02:22:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 743 states to 743 states and 937 transitions. [2024-11-28 02:22:53,436 INFO L78 Accepts]: Start accepts. Automaton has 743 states and 937 transitions. Word has length 72 [2024-11-28 02:22:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:22:53,436 INFO L471 AbstractCegarLoop]: Abstraction has 743 states and 937 transitions. [2024-11-28 02:22:53,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-28 02:22:53,437 INFO L276 IsEmpty]: Start isEmpty. Operand 743 states and 937 transitions. [2024-11-28 02:22:53,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-28 02:22:53,446 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:22:53,446 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:53,456 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:22:53,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-28 02:22:53,647 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:22:53,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:22:53,648 INFO L85 PathProgramCache]: Analyzing trace with hash 287920127, now seen corresponding path program 1 times [2024-11-28 02:22:53,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:22:53,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655875496] [2024-11-28 02:22:53,648 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:22:53,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:22:53,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:22:53,676 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-28 02:22:53,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-28 02:22:53,732 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-28 02:22:53,732 INFO L340 BasicCegarLoop]: Counterexample is feasible [2024-11-28 02:22:53,733 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-28 02:22:53,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:22:53,739 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:22:53,824 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-28 02:22:53,827 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:22:53 BoogieIcfgContainer [2024-11-28 02:22:53,828 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-28 02:22:53,829 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-28 02:22:53,829 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-28 02:22:53,829 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-28 02:22:53,830 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:22:49" (3/4) ... [2024-11-28 02:22:53,830 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2024-11-28 02:22:53,932 INFO L129 tionWitnessGenerator]: Generated YAML witness of length 65. [2024-11-28 02:22:54,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/witness.graphml [2024-11-28 02:22:54,052 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/witness.yml [2024-11-28 02:22:54,052 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-28 02:22:54,053 INFO L158 Benchmark]: Toolchain (without parser) took 5336.01ms. Allocated memory is still 117.4MB. Free memory was 91.7MB in the beginning and 84.6MB in the end (delta: 7.1MB). Peak memory consumption was 68.2MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,053 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:22:54,058 INFO L158 Benchmark]: CACSL2BoogieTranslator took 536.52ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.83ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-28 02:22:54,058 INFO L158 Benchmark]: Boogie Preprocessor took 37.06ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,058 INFO L158 Benchmark]: RCFGBuilder took 428.22ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 54.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,059 INFO L158 Benchmark]: TraceAbstraction took 4046.48ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 39.5MB in the end (delta: 14.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,059 INFO L158 Benchmark]: Witness Printer took 223.44ms. Allocated memory is still 117.4MB. Free memory was 39.5MB in the beginning and 84.6MB in the end (delta: -45.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-28 02:22:54,061 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 117.4MB. Free memory was 72.9MB in the beginning and 72.8MB in the end (delta: 146.8kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 536.52ms. Allocated memory is still 117.4MB. Free memory was 91.4MB in the beginning and 73.2MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.83ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.4MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 37.06ms. Allocated memory is still 117.4MB. Free memory was 71.4MB in the beginning and 69.5MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 428.22ms. Allocated memory is still 117.4MB. Free memory was 69.5MB in the beginning and 54.1MB in the end (delta: 15.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 4046.48ms. Allocated memory is still 117.4MB. Free memory was 53.5MB in the beginning and 39.5MB in the end (delta: 14.0MB). Peak memory consumption was 6.8MB. Max. memory is 16.1GB. * Witness Printer took 223.44ms. Allocated memory is still 117.4MB. Free memory was 39.5MB in the beginning and 84.6MB in the end (delta: -45.1MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 593]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [593] - GenericResultAtLocation [Line: 663]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [663] - GenericResultAtLocation [Line: 703]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [703] - GenericResultAtLocation [Line: 741]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [741] - GenericResultAtLocation [Line: 750]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [750] - GenericResultAtLocation [Line: 847]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [847] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L219] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L426] int pumpRunning = 0; [L427] int systemActive = 1; [L665] int methAndRunningLastTime ; [L751] int cleanupTimeShifts = 4; [L849] int waterLevel = 1; [L850] int methaneLevelCritical = 0; VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; [L826] int tmp ; [L830] FCALL select_helpers() [L831] FCALL select_features() [L832] CALL, EXPR valid_product() [L733] int retValue_acc ; [L736] retValue_acc = 1 [L737] return (retValue_acc); VAL [\result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] RET, EXPR valid_product() [L832] tmp = valid_product() [L834] COND TRUE \read(tmp) [L836] FCALL setup() [L837] CALL runTest() [L818] CALL __utac_acc__Specification2_spec__1() [L670] methAndRunningLastTime = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L818] RET __utac_acc__Specification2_spec__1() [L819] CALL test() [L598] int splverifierCounter ; [L599] int tmp ; [L600] int tmp___0 ; [L601] int tmp___1 ; [L602] int tmp___2 ; [L605] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L615] tmp = __VERIFIER_nondet_int() [L617] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L619] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L867] COND TRUE waterLevel < 2 [L868] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L619] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND TRUE \read(tmp___0) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L629] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L879] COND FALSE !(\read(methaneLevelCritical)) [L882] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L629] RET changeMethaneLevel() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L652] CALL timeShift() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L434] COND FALSE !(\read(pumpRunning)) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L466] COND TRUE ! pumpRunning [L468] CALL, EXPR isHighWaterLevel() [L560] int retValue_acc ; [L561] int tmp ; [L562] int tmp___0 ; [L566] CALL, EXPR isHighWaterSensorDry() [L929] int retValue_acc ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L932] COND FALSE !(waterLevel < 2) [L936] retValue_acc = 0 [L937] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L566] RET, EXPR isHighWaterSensorDry() [L566] tmp = isHighWaterSensorDry() [L568] COND FALSE !(\read(tmp)) [L571] tmp___0 = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, tmp___0=1, waterLevel=2] [L573] retValue_acc = tmp___0 [L574] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=0, systemActive=1, waterLevel=2] [L468] RET, EXPR isHighWaterLevel() [L468] tmp = isHighWaterLevel() [L470] COND TRUE \read(tmp) [L472] CALL activatePump() [L491] pumpRunning = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L472] RET activatePump() [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification2_spec__2() [L675] int tmp ; [L676] int tmp___0 ; VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L684] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L684] RET, EXPR isPumpRunning() [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=0, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L687] COND FALSE !(\read(methAndRunningLastTime)) [L692] methAndRunningLastTime = 1 VAL [\old(methAndRunningLastTime)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L449] RET __utac_acc__Specification2_spec__2() [L652] RET timeShift() VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L609] COND TRUE splverifierCounter < 4 VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L615] tmp = __VERIFIER_nondet_int() [L617] COND FALSE !(\read(tmp)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L625] tmp___0 = __VERIFIER_nondet_int() [L627] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L635] tmp___2 = __VERIFIER_nondet_int() [L637] COND TRUE \read(tmp___2) VAL [cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, waterLevel=2] [L652] CALL timeShift() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L434] COND TRUE \read(pumpRunning) [L436] CALL lowerWaterLevel() [L855] COND TRUE waterLevel > 0 [L856] waterLevel = waterLevel - 1 VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L436] RET lowerWaterLevel() [L441] COND TRUE \read(systemActive) [L443] CALL processEnvironment() [L463] int tmp ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L466] COND FALSE !(! pumpRunning) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L481] FCALL processEnvironment__wrappee__base() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L443] RET processEnvironment() [L449] CALL __utac_acc__Specification2_spec__2() [L675] int tmp ; [L676] int tmp___0 ; VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] CALL, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L888] int retValue_acc ; [L891] retValue_acc = methaneLevelCritical [L892] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] RET, EXPR isMethaneLevelCritical() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L680] tmp = isMethaneLevelCritical() [L682] COND TRUE \read(tmp) [L684] CALL, EXPR isPumpRunning() [L515] int retValue_acc ; [L518] retValue_acc = pumpRunning [L519] return (retValue_acc); VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L684] RET, EXPR isPumpRunning() [L684] tmp___0 = isPumpRunning() [L686] COND TRUE \read(tmp___0) VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L687] COND TRUE \read(methAndRunningLastTime) [L689] CALL __automaton_fail() [L746] reach_error() VAL [\old(methAndRunningLastTime)=1, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methAndRunningLastTime=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 3.9s, OverallIterations: 10, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 449 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 445 mSDsluCounter, 2020 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1319 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 169 IncrementalHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 701 mSDtfsCounter, 169 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 158 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=743occurred in iteration=9, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 497 NumberOfCodeBlocks, 497 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 482 ConstructedInterpolants, 0 QuantifiedInterpolants, 954 SizeOfPredicates, 1 NumberOfNonLiveVariables, 262 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 11 InterpolantComputations, 9 PerfectInterpolantSequences, 62/66 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-11-28 02:22:54,085 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_287c8065-569f-420f-893f-b604d3db0855/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (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