./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd --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 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:16:39,259 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:16:39,347 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:16:39,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:16:39,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:16:39,380 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:16:39,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:16:39,381 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:16:39,381 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:16:39,381 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:16:39,382 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:16:39,382 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:16:39,382 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:16:39,382 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:16:39,382 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:16:39,382 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:16:39,382 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:16:39,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:16:39,384 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:16:39,384 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:16:39,384 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:16:39,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:16:39,385 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:16:39,385 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:16:39,385 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:16:39,385 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:16:39,385 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_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd 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 -> 458689bcd0930e2b07a61b7490d83be8ce4e59412b26a60581bf78c492ee412e [2024-11-13 15:16:39,692 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:16:39,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:16:39,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:16:39,711 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:16:39,711 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:16:39,712 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c Unable to find full path for "g++" [2024-11-13 15:16:41,608 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:16:41,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:16:41,917 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c [2024-11-13 15:16:41,930 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/data/62ca826da/4ccbbbc907ff4ad1a445e16b3ec20b8f/FLAGc8c6e69f7 [2024-11-13 15:16:41,960 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/data/62ca826da/4ccbbbc907ff4ad1a445e16b3ec20b8f [2024-11-13 15:16:41,962 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:16:41,964 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:16:41,967 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:16:41,967 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:16:41,973 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:16:41,974 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:16:41" (1/1) ... [2024-11-13 15:16:41,978 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fd0d15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:41, skipping insertion in model container [2024-11-13 15:16:41,978 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:16:41" (1/1) ... [2024-11-13 15:16:42,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:16:42,419 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_66b61e11-f336-40c5-8238-23dfa936694f/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2024-11-13 15:16:42,422 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:16:42,440 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:16:42,450 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] [2024-11-13 15:16:42,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] [2024-11-13 15:16:42,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [125] [2024-11-13 15:16:42,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [491] [2024-11-13 15:16:42,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] [2024-11-13 15:16:42,453 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [689] [2024-11-13 15:16:42,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] [2024-11-13 15:16:42,454 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [962] [2024-11-13 15:16:42,566 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_66b61e11-f336-40c5-8238-23dfa936694f/sv-benchmarks/c/product-lines/minepump_spec3_product46.cil.c[18431,18444] [2024-11-13 15:16:42,567 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:16:42,594 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:16:42,595 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42 WrapperNode [2024-11-13 15:16:42,596 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:16:42,597 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:16:42,598 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:16:42,598 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:16:42,605 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,625 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,664 INFO L138 Inliner]: procedures = 55, calls = 101, calls flagged for inlining = 23, calls inlined = 20, statements flattened = 199 [2024-11-13 15:16:42,667 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:16:42,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:16:42,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:16:42,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:16:42,680 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,686 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,715 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]. [2024-11-13 15:16:42,718 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,719 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,741 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,743 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,749 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:16:42,754 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:16:42,754 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:16:42,754 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:16:42,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (1/1) ... [2024-11-13 15:16:42,766 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:16:42,782 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:42,801 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:16:42,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:16:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:16:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-13 15:16:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-13 15:16:42,850 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-13 15:16:42,850 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-13 15:16:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-13 15:16:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-13 15:16:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-13 15:16:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-13 15:16:42,851 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-13 15:16:42,851 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-13 15:16:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-13 15:16:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-13 15:16:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-13 15:16:42,852 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-13 15:16:42,852 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:16:42,853 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-13 15:16:42,853 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-13 15:16:42,854 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:16:42,854 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:16:42,981 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:16:42,985 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:16:43,331 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-11-13 15:16:43,331 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:16:43,350 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:16:43,350 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-13 15:16:43,351 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:16:43 BoogieIcfgContainer [2024-11-13 15:16:43,351 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:16:43,356 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:16:43,356 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:16:43,363 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:16:43,363 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:16:41" (1/3) ... [2024-11-13 15:16:43,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127c0ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:16:43, skipping insertion in model container [2024-11-13 15:16:43,364 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:16:42" (2/3) ... [2024-11-13 15:16:43,364 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@127c0ed0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:16:43, skipping insertion in model container [2024-11-13 15:16:43,365 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:16:43" (3/3) ... [2024-11-13 15:16:43,367 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2024-11-13 15:16:43,386 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:16:43,387 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec3_product46.cil.c that has 9 procedures, 96 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-13 15:16:43,455 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:16:43,474 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;@695aacf5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:16:43,474 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:16:43,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 80 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-13 15:16:43,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-13 15:16:43,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:43,491 INFO L215 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] [2024-11-13 15:16:43,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:43,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:43,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1549069966, now seen corresponding path program 1 times [2024-11-13 15:16:43,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:43,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433184481] [2024-11-13 15:16:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:43,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:43,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:43,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-13 15:16:43,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:43,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:43,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433184481] [2024-11-13 15:16:43,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433184481] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:43,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:43,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:16:43,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310452946] [2024-11-13 15:16:43,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:43,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-13 15:16:43,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:43,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-13 15:16:43,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:16:43,825 INFO L87 Difference]: Start difference. First operand has 96 states, 72 states have (on average 1.375) internal successors, (99), 80 states have internal predecessors, (99), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 12 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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) [2024-11-13 15:16:43,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:43,874 INFO L93 Difference]: Finished difference Result 184 states and 249 transitions. [2024-11-13 15:16:43,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-13 15:16:43,877 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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 [2024-11-13 15:16:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:43,887 INFO L225 Difference]: With dead ends: 184 [2024-11-13 15:16:43,888 INFO L226 Difference]: Without dead ends: 87 [2024-11-13 15:16:43,894 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-13 15:16:43,897 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:43,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:16:43,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-11-13 15:16:43,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-11-13 15:16:43,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 65 states have (on average 1.3076923076923077) internal successors, (85), 72 states have internal predecessors, (85), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 11 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-13 15:16:43,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 112 transitions. [2024-11-13 15:16:43,957 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 112 transitions. Word has length 25 [2024-11-13 15:16:43,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:43,958 INFO L471 AbstractCegarLoop]: Abstraction has 87 states and 112 transitions. [2024-11-13 15:16:43,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 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) [2024-11-13 15:16:43,959 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 112 transitions. [2024-11-13 15:16:43,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-13 15:16:43,961 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:43,961 INFO L215 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] [2024-11-13 15:16:43,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:16:43,962 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:43,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:43,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1115053264, now seen corresponding path program 1 times [2024-11-13 15:16:43,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:43,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820258047] [2024-11-13 15:16:43,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:43,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-13 15:16:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:44,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820258047] [2024-11-13 15:16:44,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820258047] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:44,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:44,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:16:44,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1751806426] [2024-11-13 15:16:44,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:44,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:16:44,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:44,148 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:16:44,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:16:44,148 INFO L87 Difference]: Start difference. First operand 87 states and 112 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-13 15:16:44,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:44,183 INFO L93 Difference]: Finished difference Result 139 states and 179 transitions. [2024-11-13 15:16:44,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:16:44,184 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2024-11-13 15:16:44,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:44,186 INFO L225 Difference]: With dead ends: 139 [2024-11-13 15:16:44,188 INFO L226 Difference]: Without dead ends: 78 [2024-11-13 15:16:44,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:16:44,190 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 13 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 181 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 [2024-11-13 15:16:44,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 181 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:16:44,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-13 15:16:44,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-13 15:16:44,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.3220338983050848) internal successors, (78), 66 states have internal predecessors, (78), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:44,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 100 transitions. [2024-11-13 15:16:44,209 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 100 transitions. Word has length 26 [2024-11-13 15:16:44,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:44,209 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 100 transitions. [2024-11-13 15:16:44,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-13 15:16:44,210 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 100 transitions. [2024-11-13 15:16:44,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-13 15:16:44,211 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:44,211 INFO L215 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] [2024-11-13 15:16:44,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:16:44,212 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:44,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:44,215 INFO L85 PathProgramCache]: Analyzing trace with hash 544078309, now seen corresponding path program 1 times [2024-11-13 15:16:44,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:44,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147087770] [2024-11-13 15:16:44,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:44,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:44,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 15:16:44,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:44,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:44,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147087770] [2024-11-13 15:16:44,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147087770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:44,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:44,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:16:44,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799356652] [2024-11-13 15:16:44,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:44,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:16:44,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:44,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:16:44,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:16:44,417 INFO L87 Difference]: Start difference. First operand 78 states and 100 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-13 15:16:44,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:44,505 INFO L93 Difference]: Finished difference Result 149 states and 194 transitions. [2024-11-13 15:16:44,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:16:44,506 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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 31 [2024-11-13 15:16:44,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:44,508 INFO L225 Difference]: With dead ends: 149 [2024-11-13 15:16:44,508 INFO L226 Difference]: Without dead ends: 78 [2024-11-13 15:16:44,509 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:44,510 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 94 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:44,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 286 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-13 15:16:44,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-11-13 15:16:44,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-11-13 15:16:44,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 59 states have (on average 1.305084745762712) internal successors, (77), 66 states have internal predecessors, (77), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 9 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-13 15:16:44,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 99 transitions. [2024-11-13 15:16:44,532 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 99 transitions. Word has length 31 [2024-11-13 15:16:44,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:44,532 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 99 transitions. [2024-11-13 15:16:44,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 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) [2024-11-13 15:16:44,532 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2024-11-13 15:16:44,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-13 15:16:44,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:44,538 INFO L215 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] [2024-11-13 15:16:44,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:16:44,538 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:44,539 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:44,539 INFO L85 PathProgramCache]: Analyzing trace with hash -532381609, now seen corresponding path program 1 times [2024-11-13 15:16:44,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:44,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226392509] [2024-11-13 15:16:44,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:44,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:44,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 15:16:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-13 15:16:44,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-13 15:16:44,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:44,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:44,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:44,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226392509] [2024-11-13 15:16:44,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226392509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:44,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:44,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 15:16:44,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10927304] [2024-11-13 15:16:44,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:44,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:16:44,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:44,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:16:44,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 15:16:44,720 INFO L87 Difference]: Start difference. First operand 78 states and 99 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:16:45,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:45,054 INFO L93 Difference]: Finished difference Result 233 states and 295 transitions. [2024-11-13 15:16:45,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:45,055 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 41 [2024-11-13 15:16:45,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:45,057 INFO L225 Difference]: With dead ends: 233 [2024-11-13 15:16:45,057 INFO L226 Difference]: Without dead ends: 162 [2024-11-13 15:16:45,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:16:45,060 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 203 mSDsluCounter, 174 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 205 SdHoareTripleChecker+Valid, 289 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:45,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [205 Valid, 289 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:16:45,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-13 15:16:45,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 156. [2024-11-13 15:16:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 119 states have (on average 1.2605042016806722) internal successors, (150), 127 states have internal predecessors, (150), 18 states have call successors, (18), 15 states have call predecessors, (18), 18 states have return successors, (23), 19 states have call predecessors, (23), 18 states have call successors, (23) [2024-11-13 15:16:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 191 transitions. [2024-11-13 15:16:45,120 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 191 transitions. Word has length 41 [2024-11-13 15:16:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:45,120 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 191 transitions. [2024-11-13 15:16:45,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 5 states have internal predecessors, (34), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-13 15:16:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 191 transitions. [2024-11-13 15:16:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-13 15:16:45,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:45,122 INFO L215 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, 1, 1, 1, 1, 1] [2024-11-13 15:16:45,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:16:45,122 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:45,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:45,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1231666769, now seen corresponding path program 1 times [2024-11-13 15:16:45,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:45,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449452004] [2024-11-13 15:16:45,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:45,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:45,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:45,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 15:16:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:45,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:45,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:45,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-13 15:16:45,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:45,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:45,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:45,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449452004] [2024-11-13 15:16:45,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449452004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:45,391 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:45,391 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:45,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516419287] [2024-11-13 15:16:45,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:45,392 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:16:45,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:45,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:16:45,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:16:45,393 INFO L87 Difference]: Start difference. First operand 156 states and 191 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:16:45,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:45,770 INFO L93 Difference]: Finished difference Result 399 states and 507 transitions. [2024-11-13 15:16:45,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 15:16:45,771 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 47 [2024-11-13 15:16:45,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:45,773 INFO L225 Difference]: With dead ends: 399 [2024-11-13 15:16:45,773 INFO L226 Difference]: Without dead ends: 250 [2024-11-13 15:16:45,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:16:45,781 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 134 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 327 SdHoareTripleChecker+Invalid, 204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:45,781 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 327 Invalid, 204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:16:45,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-11-13 15:16:45,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 248. [2024-11-13 15:16:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 189 states have (on average 1.2486772486772486) internal successors, (236), 200 states have internal predecessors, (236), 30 states have call successors, (30), 26 states have call predecessors, (30), 28 states have return successors, (40), 30 states have call predecessors, (40), 30 states have call successors, (40) [2024-11-13 15:16:45,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 306 transitions. [2024-11-13 15:16:45,846 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 306 transitions. Word has length 47 [2024-11-13 15:16:45,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:45,846 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 306 transitions. [2024-11-13 15:16:45,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-13 15:16:45,847 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 306 transitions. [2024-11-13 15:16:45,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:16:45,848 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:45,848 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:45,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:16:45,849 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:45,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:45,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1710109705, now seen corresponding path program 1 times [2024-11-13 15:16:45,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:45,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053482516] [2024-11-13 15:16:45,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:45,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:46,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 15:16:46,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:46,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 15:16:46,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:46,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:46,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053482516] [2024-11-13 15:16:46,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053482516] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:46,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:46,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-13 15:16:46,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545124826] [2024-11-13 15:16:46,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:46,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 15:16:46,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:46,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 15:16:46,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:16:46,055 INFO L87 Difference]: Start difference. First operand 248 states and 306 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:46,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:46,720 INFO L93 Difference]: Finished difference Result 570 states and 729 transitions. [2024-11-13 15:16:46,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 15:16:46,723 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 51 [2024-11-13 15:16:46,723 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:46,727 INFO L225 Difference]: With dead ends: 570 [2024-11-13 15:16:46,727 INFO L226 Difference]: Without dead ends: 421 [2024-11-13 15:16:46,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=273, Unknown=0, NotChecked=0, Total=380 [2024-11-13 15:16:46,731 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 364 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 369 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:46,731 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [369 Valid, 305 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-13 15:16:46,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2024-11-13 15:16:46,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 411. [2024-11-13 15:16:46,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 312 states have (on average 1.2243589743589745) internal successors, (382), 332 states have internal predecessors, (382), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2024-11-13 15:16:46,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 509 transitions. [2024-11-13 15:16:46,839 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 509 transitions. Word has length 51 [2024-11-13 15:16:46,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:46,839 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 509 transitions. [2024-11-13 15:16:46,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 6 states have internal predecessors, (42), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-13 15:16:46,839 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 509 transitions. [2024-11-13 15:16:46,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:16:46,845 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:46,845 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:46,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:16:46,845 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:46,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:46,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1576096199, now seen corresponding path program 1 times [2024-11-13 15:16:46,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:46,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468927457] [2024-11-13 15:16:46,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:46,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:46,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 15:16:46,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:47,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 15:16:47,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:47,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:47,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468927457] [2024-11-13 15:16:47,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468927457] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:47,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:47,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-13 15:16:47,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955713776] [2024-11-13 15:16:47,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:47,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:16:47,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:47,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:16:47,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:16:47,034 INFO L87 Difference]: Start difference. First operand 411 states and 509 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:47,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:47,414 INFO L93 Difference]: Finished difference Result 733 states and 911 transitions. [2024-11-13 15:16:47,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:16:47,415 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-13 15:16:47,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:47,422 INFO L225 Difference]: With dead ends: 733 [2024-11-13 15:16:47,422 INFO L226 Difference]: Without dead ends: 417 [2024-11-13 15:16:47,423 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:16:47,424 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 125 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 287 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:47,424 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 287 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:16:47,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-13 15:16:47,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 411. [2024-11-13 15:16:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 312 states have (on average 1.2211538461538463) internal successors, (381), 332 states have internal predecessors, (381), 50 states have call successors, (50), 39 states have call predecessors, (50), 48 states have return successors, (77), 51 states have call predecessors, (77), 50 states have call successors, (77) [2024-11-13 15:16:47,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 508 transitions. [2024-11-13 15:16:47,506 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 508 transitions. Word has length 51 [2024-11-13 15:16:47,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:47,506 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 508 transitions. [2024-11-13 15:16:47,506 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 4 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:47,507 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 508 transitions. [2024-11-13 15:16:47,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-13 15:16:47,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:47,508 INFO L215 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:47,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:16:47,508 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:47,510 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:47,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1794950917, now seen corresponding path program 1 times [2024-11-13 15:16:47,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:47,511 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668331590] [2024-11-13 15:16:47,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:47,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:47,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:47,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 15:16:47,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:47,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-11-13 15:16:47,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:47,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:16:47,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:47,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668331590] [2024-11-13 15:16:47,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1668331590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:47,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:47,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:16:47,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442236917] [2024-11-13 15:16:47,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:47,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:47,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:47,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:47,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:47,687 INFO L87 Difference]: Start difference. First operand 411 states and 508 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:48,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:48,081 INFO L93 Difference]: Finished difference Result 824 states and 1029 transitions. [2024-11-13 15:16:48,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-13 15:16:48,085 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 51 [2024-11-13 15:16:48,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:48,087 INFO L225 Difference]: With dead ends: 824 [2024-11-13 15:16:48,088 INFO L226 Difference]: Without dead ends: 420 [2024-11-13 15:16:48,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:16:48,093 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 125 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:48,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 353 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-13 15:16:48,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states. [2024-11-13 15:16:48,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 414. [2024-11-13 15:16:48,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 317 states have (on average 1.2145110410094637) internal successors, (385), 336 states have internal predecessors, (385), 49 states have call successors, (49), 38 states have call predecessors, (49), 47 states have return successors, (76), 50 states have call predecessors, (76), 49 states have call successors, (76) [2024-11-13 15:16:48,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 510 transitions. [2024-11-13 15:16:48,182 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 510 transitions. Word has length 51 [2024-11-13 15:16:48,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:48,183 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 510 transitions. [2024-11-13 15:16:48,183 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-13 15:16:48,183 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 510 transitions. [2024-11-13 15:16:48,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-13 15:16:48,186 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:48,186 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:48,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:16:48,186 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:48,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:48,187 INFO L85 PathProgramCache]: Analyzing trace with hash 1069566131, now seen corresponding path program 1 times [2024-11-13 15:16:48,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:48,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2059126393] [2024-11-13 15:16:48,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:48,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:48,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 15:16:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:16:48,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-13 15:16:48,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:48,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:16:48,570 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:48,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2059126393] [2024-11-13 15:16:48,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2059126393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:48,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:48,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-13 15:16:48,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979777784] [2024-11-13 15:16:48,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:48,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:16:48,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:48,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:16:48,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:16:48,573 INFO L87 Difference]: Start difference. First operand 414 states and 510 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:16:49,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:49,775 INFO L93 Difference]: Finished difference Result 1181 states and 1513 transitions. [2024-11-13 15:16:49,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-13 15:16:49,776 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-13 15:16:49,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:49,785 INFO L225 Difference]: With dead ends: 1181 [2024-11-13 15:16:49,786 INFO L226 Difference]: Without dead ends: 774 [2024-11-13 15:16:49,789 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-11-13 15:16:49,791 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 303 mSDsluCounter, 751 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 866 SdHoareTripleChecker+Invalid, 1037 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:49,792 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 866 Invalid, 1037 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-13 15:16:49,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 774 states. [2024-11-13 15:16:49,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 774 to 770. [2024-11-13 15:16:49,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 580 states have (on average 1.1844827586206896) internal successors, (687), 614 states have internal predecessors, (687), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (166), 98 states have call predecessors, (166), 97 states have call successors, (166) [2024-11-13 15:16:49,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 950 transitions. [2024-11-13 15:16:49,903 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 950 transitions. Word has length 60 [2024-11-13 15:16:49,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:49,904 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 950 transitions. [2024-11-13 15:16:49,904 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 7 states have internal predecessors, (47), 2 states have call successors, (6), 3 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:16:49,904 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 950 transitions. [2024-11-13 15:16:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-13 15:16:49,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:49,907 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:49,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:16:49,908 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:49,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:49,908 INFO L85 PathProgramCache]: Analyzing trace with hash 143908349, now seen corresponding path program 1 times [2024-11-13 15:16:49,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:49,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991947461] [2024-11-13 15:16:49,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:49,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:49,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:50,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-13 15:16:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:50,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,082 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:16:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-13 15:16:50,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:50,091 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:16:50,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:50,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991947461] [2024-11-13 15:16:50,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991947461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:16:50,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:16:50,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-13 15:16:50,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553910300] [2024-11-13 15:16:50,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:16:50,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-13 15:16:50,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-13 15:16:50,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:16:50,095 INFO L87 Difference]: Start difference. First operand 770 states and 950 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:16:50,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:50,754 INFO L93 Difference]: Finished difference Result 1533 states and 1893 transitions. [2024-11-13 15:16:50,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:16:50,755 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2024-11-13 15:16:50,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:50,766 INFO L225 Difference]: With dead ends: 1533 [2024-11-13 15:16:50,766 INFO L226 Difference]: Without dead ends: 770 [2024-11-13 15:16:50,769 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:16:50,771 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 188 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:50,773 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 449 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 15:16:50,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 770 states. [2024-11-13 15:16:50,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 770 to 770. [2024-11-13 15:16:50,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 770 states, 580 states have (on average 1.1706896551724137) internal successors, (679), 614 states have internal predecessors, (679), 97 states have call successors, (97), 76 states have call predecessors, (97), 92 states have return successors, (147), 98 states have call predecessors, (147), 97 states have call successors, (147) [2024-11-13 15:16:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 770 states to 770 states and 923 transitions. [2024-11-13 15:16:50,876 INFO L78 Accepts]: Start accepts. Automaton has 770 states and 923 transitions. Word has length 61 [2024-11-13 15:16:50,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:50,877 INFO L471 AbstractCegarLoop]: Abstraction has 770 states and 923 transitions. [2024-11-13 15:16:50,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 5 states have internal predecessors, (48), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-13 15:16:50,877 INFO L276 IsEmpty]: Start isEmpty. Operand 770 states and 923 transitions. [2024-11-13 15:16:50,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-11-13 15:16:50,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:16:50,881 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:50,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:16:50,882 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:16:50,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:16:50,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1469737690, now seen corresponding path program 1 times [2024-11-13 15:16:50,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:16:50,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704285592] [2024-11-13 15:16:50,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:50,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:16:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-13 15:16:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-13 15:16:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-13 15:16:51,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-13 15:16:51,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:16:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-13 15:16:51,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-13 15:16:51,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,417 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-13 15:16:51,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-13 15:16:51,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 18 proven. 11 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:51,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:16:51,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704285592] [2024-11-13 15:16:51,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704285592] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:16:51,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1862208097] [2024-11-13 15:16:51,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:16:51,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:51,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:16:51,429 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:16:51,432 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:16:51,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:16:51,568 INFO L255 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 15:16:51,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:16:51,882 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 17 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-13 15:16:51,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:16:52,410 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-13 15:16:52,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1862208097] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:16:52,411 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:16:52,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 8, 9] total 22 [2024-11-13 15:16:52,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349833268] [2024-11-13 15:16:52,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:16:52,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-13 15:16:52,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:16:52,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-13 15:16:52,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=394, Unknown=0, NotChecked=0, Total=462 [2024-11-13 15:16:52,414 INFO L87 Difference]: Start difference. First operand 770 states and 923 transitions. Second operand has 22 states, 22 states have (on average 6.454545454545454) internal successors, (142), 15 states have internal predecessors, (142), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-13 15:16:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:16:54,524 INFO L93 Difference]: Finished difference Result 1617 states and 1998 transitions. [2024-11-13 15:16:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2024-11-13 15:16:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 6.454545454545454) internal successors, (142), 15 states have internal predecessors, (142), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) Word has length 99 [2024-11-13 15:16:54,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:16:54,526 INFO L225 Difference]: With dead ends: 1617 [2024-11-13 15:16:54,526 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:16:54,534 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 208 SyntacticMatches, 7 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1429 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=1128, Invalid=4128, Unknown=0, NotChecked=0, Total=5256 [2024-11-13 15:16:54,535 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 855 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 803 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 857 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 1151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 803 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:16:54,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [857 Valid, 608 Invalid, 1151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 803 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 15:16:54,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:16:54,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:16:54,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:16:54,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:16:54,537 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 99 [2024-11-13 15:16:54,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:16:54,538 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:16:54,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 6.454545454545454) internal successors, (142), 15 states have internal predecessors, (142), 7 states have call successors, (23), 10 states have call predecessors, (23), 10 states have return successors, (23), 10 states have call predecessors, (23), 7 states have call successors, (23) [2024-11-13 15:16:54,538 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:16:54,539 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:16:54,542 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:16:54,565 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:16:54,742 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:16:54,745 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:16:54,747 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 15:16:58,942 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:16:58,974 WARN L162 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse0 (= |old(~methaneLevelCritical~0)| 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (and (or .cse0 (not .cse1)) (let ((.cse2 (<= ~waterLevel~0 2)) (.cse3 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse2 .cse3) (and .cse2 .cse3 (= ~pumpRunning~0 1)))) (or (not .cse0) .cse1))) Eliminated clause: (and (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (= ~pumpRunning~0 0) .cse0 .cse1) (and .cse0 .cse1 (= ~pumpRunning~0 1)))) (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse2 (= |old(~methaneLevelCritical~0)| 0)) (.cse3 (= ~methaneLevelCritical~0 0))) (and (or .cse2 (not .cse3)) (or (not .cse2) .cse3))))) [2024-11-13 15:16:58,979 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 15:16:58,990 WARN L162 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse1 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse2 (= |old(~pumpRunning~0)| 1)) (.cse0 (= |old(~pumpRunning~0)| 0))) (and (or (not .cse0) (and (= ~pumpRunning~0 0) .cse1)) (or (not .cse2) (and .cse1 (= ~pumpRunning~0 1))) (let ((.cse3 (<= |old(~waterLevel~0)| 2)) (.cse4 (not (= 0 ~systemActive~0)))) (or (and .cse2 .cse3 .cse4) (and .cse0 .cse3 .cse4)))))) [2024-11-13 15:16:59,003 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 15:16:59,028 WARN L162 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= ~pumpRunning~0 0)) (.cse4 (<= |old(~waterLevel~0)| 1)) (.cse1 (= ~methaneLevelCritical~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse3 (not (= 0 ~systemActive~0))) (.cse5 (= ~pumpRunning~0 1))) (or (and .cse0 (not .cse1) .cse2 .cse3) (and .cse0 .cse4 .cse3) (and .cse4 .cse3 .cse5) (and .cse1 .cse2 .cse3 .cse5)))) Eliminated clause: (let ((.cse5 (<= ~waterLevel~0 1)) (.cse3 (= ~pumpRunning~0 1)) (.cse4 (= ~pumpRunning~0 0)) (.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (<= ~waterLevel~0 2)) (.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse2) (and .cse5 .cse2 .cse3) (and .cse4 (not .cse0) .cse1 .cse2))) [2024-11-13 15:16:59,046 WARN L162 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (<= ~waterLevel~0 1) .cse1 .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (<= ~waterLevel~0 1) .cse1 .cse2)))))) [2024-11-13 15:16:59,055 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 15:16:59,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:16:59 BoogieIcfgContainer [2024-11-13 15:16:59,063 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:16:59,063 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:16:59,063 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:16:59,064 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:16:59,065 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:16:43" (3/4) ... [2024-11-13 15:16:59,068 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:16:59,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-13 15:16:59,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-13 15:16:59,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-13 15:16:59,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-13 15:16:59,074 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-13 15:16:59,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-13 15:16:59,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-13 15:16:59,075 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-13 15:16:59,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-13 15:16:59,081 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-13 15:16:59,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 15:16:59,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:16:59,082 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:16:59,203 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:16:59,203 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:16:59,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:16:59,204 INFO L158 Benchmark]: Toolchain (without parser) took 17240.38ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 92.1MB in the beginning and 112.0MB in the end (delta: -19.9MB). Peak memory consumption was 41.6MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,205 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:16:59,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 629.88ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.09ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,206 INFO L158 Benchmark]: Boogie Preprocessor took 84.35ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:16:59,206 INFO L158 Benchmark]: RCFGBuilder took 596.75ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 53.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,206 INFO L158 Benchmark]: TraceAbstraction took 15706.46ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 52.4MB in the beginning and 120.4MB in the end (delta: -68.0MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,207 INFO L158 Benchmark]: Witness Printer took 139.92ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 112.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:16:59,208 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 117.4MB. Free memory is still 74.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 629.88ms. Allocated memory is still 117.4MB. Free memory was 91.9MB in the beginning and 73.2MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.09ms. Allocated memory is still 117.4MB. Free memory was 73.2MB in the beginning and 71.3MB in the end (delta: 1.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 84.35ms. Allocated memory is still 117.4MB. Free memory was 71.3MB in the beginning and 69.6MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 596.75ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 53.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 15706.46ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 52.4MB in the beginning and 120.4MB in the end (delta: -68.0MB). Peak memory consumption was 60.5MB. Max. memory is 16.1GB. * Witness Printer took 139.92ms. Allocated memory is still 176.2MB. Free memory was 120.4MB in the beginning and 112.0MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [87] - GenericResultAtLocation [Line: 125]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [125] - GenericResultAtLocation [Line: 491]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [491] - GenericResultAtLocation [Line: 592]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [592] - GenericResultAtLocation [Line: 689]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [689] - GenericResultAtLocation [Line: 895]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [895] - GenericResultAtLocation [Line: 962]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [962] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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 - PositiveResult [Line: 967]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 96 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 6.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2438 SdHoareTripleChecker+Valid, 3.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2404 mSDsluCounter, 4072 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3093 mSDsCounter, 824 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3175 IncrementalHoareTripleChecker+Invalid, 3999 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 824 mSolverCounterUnsat, 979 mSDtfsCounter, 3175 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 473 GetRequests, 297 SyntacticMatches, 7 SemanticMatches, 169 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1704 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=770occurred in iteration=9, InterpolantAutomatonStates: 151, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 34 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.2s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 728 ConstructedInterpolants, 0 QuantifiedInterpolants, 1368 SizeOfPredicates, 2 NumberOfNonLiveVariables, 322 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 13 InterpolantComputations, 10 PerfectInterpolantSequences, 102/129 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 906]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (methaneLevelCritical != 0)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 != systemActive)) || ((((waterLevel <= 1) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 504]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 905]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 720]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 622]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) == 0))) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical != 0))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 696]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: (((((((((waterLevel <= 1) && (waterLevel <= \old(waterLevel))) && (pumpRunning == 1)) || (\old(pumpRunning) != 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (waterLevel <= \old(waterLevel)))) && ((((((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel)) || (\old(pumpRunning) != 0)) || (methaneLevelCritical != 0)) || ((\old(waterLevel) == waterLevel) && (pumpRunning == 1)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical == 0))) && ((((\old(pumpRunning) == 1) && (\old(waterLevel) <= 2)) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)) && (0 != systemActive)))) && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 494]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 634]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: ((((((methaneLevelCritical == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: ((((((((methaneLevelCritical == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) && (\result == methaneLevelCritical)) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 610]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((((methaneLevelCritical == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (0 != systemActive))) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (methaneLevelCritical != 0)) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((waterLevel <= ((long long) \old(waterLevel) + 1)) && (waterLevel <= 2)) && (((((((pumpRunning == 0) && (methaneLevelCritical != 0)) && (\old(waterLevel) <= 2)) && (0 != systemActive)) || (((pumpRunning == 0) && (\old(waterLevel) <= 1)) && (0 != systemActive))) || (((\old(waterLevel) <= 1) && (0 != systemActive)) && (pumpRunning == 1))) || ((((methaneLevelCritical == 0) && (\old(waterLevel) <= 2)) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 728]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: (((((((methaneLevelCritical != 0) || ((pumpRunning == 0) && (waterLevel <= 1))) || (pumpRunning == 1)) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (methaneLevelCritical == 0))) && ((\old(pumpRunning) != 1) || (pumpRunning == 1))) && ((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 1) && (\old(pumpRunning) == 1)) && (0 != systemActive)))) && (((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive)))) - ProcedureContractResult [Line: 812]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: ((((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((waterLevel <= 1) && (0 != systemActive)) && (pumpRunning == 1))) && (\result == methaneLevelCritical)) && ((((((head == \old(head)) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 15:16:59,244 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_66b61e11-f336-40c5-8238-23dfa936694f/bin/uautomizer-verify-qhAvR1uOyd/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 Result: TRUE