./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 02:05:59,849 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 02:05:59,986 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 02:06:00,002 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 02:06:00,002 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 02:06:00,057 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 02:06:00,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 02:06:00,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 02:06:00,061 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 02:06:00,065 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 02:06:00,065 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 02:06:00,065 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 02:06:00,066 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 02:06:00,066 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 02:06:00,067 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 02:06:00,069 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 02:06:00,073 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 02:06:00,074 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 02:06:00,074 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 02:06:00,074 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 02:06:00,078 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 02:06:00,078 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 02:06:00,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 02:06:00,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 02:06:00,082 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 02:06:00,082 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 02:06:00,082 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 02:06:00,083 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 02:06:00,083 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 02:06:00,085 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 02:06:00,086 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 02:06:00,086 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 02:06:00,087 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:00,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 02:06:00,092 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 02:06:00,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 02:06:00,098 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 02:06:00,098 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5340faf3ec1f0e0bc66d280fc3b45c510e704ff1d108d74101ee8606e665888 [2024-11-22 02:06:00,586 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 02:06:00,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 02:06:00,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 02:06:00,641 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 02:06:00,642 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 02:06:00,643 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2024-11-22 02:06:02,667 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 02:06:02,871 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 02:06:02,872 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c [2024-11-22 02:06:02,882 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9b6d248/a74e2be3bd3c45938bb8ee788a9264e0/FLAGea7e04704 [2024-11-22 02:06:03,239 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec9b6d248/a74e2be3bd3c45938bb8ee788a9264e0 [2024-11-22 02:06:03,242 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 02:06:03,244 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 02:06:03,245 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:03,246 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 02:06:03,252 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 02:06:03,253 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:03" (1/1) ... [2024-11-22 02:06:03,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e1581d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:03, skipping insertion in model container [2024-11-22 02:06:03,257 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:06:03" (1/1) ... [2024-11-22 02:06:03,289 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 02:06:03,510 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2024-11-22 02:06:03,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:03,863 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 02:06:03,881 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [49] [2024-11-22 02:06:03,890 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] [2024-11-22 02:06:03,891 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] [2024-11-22 02:06:03,903 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product61.cil.c[1605,1618] [2024-11-22 02:06:04,025 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 02:06:04,053 INFO L204 MainTranslator]: Completed translation [2024-11-22 02:06:04,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04 WrapperNode [2024-11-22 02:06:04,054 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 02:06:04,055 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:04,057 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 02:06:04,057 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 02:06:04,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,082 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,126 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 236 [2024-11-22 02:06:04,128 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 02:06:04,128 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 02:06:04,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 02:06:04,129 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 02:06:04,138 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,139 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,141 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,179 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]. [2024-11-22 02:06:04,180 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,190 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,204 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,206 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,209 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,211 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 02:06:04,217 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 02:06:04,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 02:06:04,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 02:06:04,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (1/1) ... [2024-11-22 02:06:04,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 02:06:04,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:04,270 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-22 02:06:04,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-22 02:06:04,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 02:06:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-22 02:06:04,330 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-22 02:06:04,330 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-22 02:06:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-22 02:06:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-22 02:06:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-22 02:06:04,333 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:06:04,333 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:06:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-22 02:06:04,334 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-22 02:06:04,334 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:06:04,335 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:06:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-22 02:06:04,335 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-22 02:06:04,335 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-22 02:06:04,336 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-22 02:06:04,336 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 02:06:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-22 02:06:04,337 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-22 02:06:04,337 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 02:06:04,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 02:06:04,491 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 02:06:04,501 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 02:06:05,045 INFO L? ?]: Removed 53 outVars from TransFormulas that were not future-live. [2024-11-22 02:06:05,045 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 02:06:05,064 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 02:06:05,066 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-22 02:06:05,067 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:05 BoogieIcfgContainer [2024-11-22 02:06:05,067 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 02:06:05,073 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 02:06:05,073 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 02:06:05,077 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 02:06:05,080 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:06:03" (1/3) ... [2024-11-22 02:06:05,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2befe9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:05, skipping insertion in model container [2024-11-22 02:06:05,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:06:04" (2/3) ... [2024-11-22 02:06:05,086 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2befe9d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:06:05, skipping insertion in model container [2024-11-22 02:06:05,086 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:05" (3/3) ... [2024-11-22 02:06:05,087 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product61.cil.c [2024-11-22 02:06:05,126 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 02:06:05,126 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 02:06:05,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 02:06:05,259 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;@757ef7b1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 02:06:05,259 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 02:06:05,271 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-22 02:06:05,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-22 02:06:05,290 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:05,295 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:05,295 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:05,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:05,309 INFO L85 PathProgramCache]: Analyzing trace with hash 332135154, now seen corresponding path program 1 times [2024-11-22 02:06:05,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:05,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365674708] [2024-11-22 02:06:05,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:05,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:05,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:05,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:05,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365674708] [2024-11-22 02:06:05,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365674708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:05,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:05,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:06:05,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621954152] [2024-11-22 02:06:05,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:05,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 02:06:05,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:05,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 02:06:05,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:06:05,764 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.381578947368421) internal successors, (105), 86 states have internal predecessors, (105), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:05,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:05,841 INFO L93 Difference]: Finished difference Result 198 states and 269 transitions. [2024-11-22 02:06:05,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 02:06:05,879 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2024-11-22 02:06:05,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:05,914 INFO L225 Difference]: With dead ends: 198 [2024-11-22 02:06:05,915 INFO L226 Difference]: Without dead ends: 94 [2024-11-22 02:06:05,927 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 02:06:05,934 INFO L432 NwaCegarLoop]: 131 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, 131 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 [2024-11-22 02:06:05,945 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:06,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-22 02:06:06,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-22 02:06:06,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.318840579710145) internal successors, (91), 78 states have internal predecessors, (91), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-22 02:06:06,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 122 transitions. [2024-11-22 02:06:06,080 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 122 transitions. Word has length 19 [2024-11-22 02:06:06,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:06,084 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 122 transitions. [2024-11-22 02:06:06,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.5) internal successors, (17), 2 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:06,085 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 122 transitions. [2024-11-22 02:06:06,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-22 02:06:06,089 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:06,090 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] [2024-11-22 02:06:06,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-22 02:06:06,094 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:06,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:06,095 INFO L85 PathProgramCache]: Analyzing trace with hash 2057254746, now seen corresponding path program 1 times [2024-11-22 02:06:06,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:06,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490277715] [2024-11-22 02:06:06,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:06,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:06,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:06,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:06,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490277715] [2024-11-22 02:06:06,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490277715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:06,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:06,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:06,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251493129] [2024-11-22 02:06:06,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:06,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:06,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:06,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:06,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,273 INFO L87 Difference]: Start difference. First operand 94 states and 122 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:06,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:06,285 INFO L93 Difference]: Finished difference Result 154 states and 200 transitions. [2024-11-22 02:06:06,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:06,285 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2024-11-22 02:06:06,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:06,286 INFO L225 Difference]: With dead ends: 154 [2024-11-22 02:06:06,286 INFO L226 Difference]: Without dead ends: 85 [2024-11-22 02:06:06,287 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,288 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 202 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 [2024-11-22 02:06:06,288 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 202 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:06,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-22 02:06:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-22 02:06:06,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 72 states have internal predecessors, (84), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 02:06:06,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 110 transitions. [2024-11-22 02:06:06,295 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 110 transitions. Word has length 20 [2024-11-22 02:06:06,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:06,296 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 110 transitions. [2024-11-22 02:06:06,296 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:06,296 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 110 transitions. [2024-11-22 02:06:06,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-11-22 02:06:06,297 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:06,297 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] [2024-11-22 02:06:06,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 02:06:06,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:06,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:06,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1387625524, now seen corresponding path program 1 times [2024-11-22 02:06:06,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:06,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182892400] [2024-11-22 02:06:06,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:06,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:06,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:06,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:06,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182892400] [2024-11-22 02:06:06,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182892400] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:06,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:06,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-22 02:06:06,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424010119] [2024-11-22 02:06:06,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:06,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:06,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:06,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:06,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,362 INFO L87 Difference]: Start difference. First operand 85 states and 110 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:06,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:06,375 INFO L93 Difference]: Finished difference Result 163 states and 214 transitions. [2024-11-22 02:06:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:06,375 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2024-11-22 02:06:06,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:06,377 INFO L225 Difference]: With dead ends: 163 [2024-11-22 02:06:06,377 INFO L226 Difference]: Without dead ends: 85 [2024-11-22 02:06:06,377 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,378 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 92 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 108 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 [2024-11-22 02:06:06,379 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 108 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:06,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2024-11-22 02:06:06,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2024-11-22 02:06:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 63 states have (on average 1.3174603174603174) internal successors, (83), 72 states have internal predecessors, (83), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 8 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-22 02:06:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 109 transitions. [2024-11-22 02:06:06,387 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 109 transitions. Word has length 24 [2024-11-22 02:06:06,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:06,388 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 109 transitions. [2024-11-22 02:06:06,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-22 02:06:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 109 transitions. [2024-11-22 02:06:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-22 02:06:06,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:06,389 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] [2024-11-22 02:06:06,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 02:06:06,390 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:06,390 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:06,390 INFO L85 PathProgramCache]: Analyzing trace with hash 610675451, now seen corresponding path program 1 times [2024-11-22 02:06:06,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:06,391 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181106540] [2024-11-22 02:06:06,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:06,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:06,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:06,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:06,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181106540] [2024-11-22 02:06:06,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181106540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:06,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:06,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 02:06:06,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620709317] [2024-11-22 02:06:06,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:06,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 02:06:06,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:06,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 02:06:06,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,467 INFO L87 Difference]: Start difference. First operand 85 states and 109 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:06,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:06,505 INFO L93 Difference]: Finished difference Result 210 states and 276 transitions. [2024-11-22 02:06:06,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 02:06:06,505 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 37 [2024-11-22 02:06:06,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:06,507 INFO L225 Difference]: With dead ends: 210 [2024-11-22 02:06:06,507 INFO L226 Difference]: Without dead ends: 132 [2024-11-22 02:06:06,507 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 02:06:06,508 INFO L432 NwaCegarLoop]: 105 mSDtfsCounter, 64 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:06,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 176 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:06,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 132 states. [2024-11-22 02:06:06,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 132 to 130. [2024-11-22 02:06:06,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 98 states have (on average 1.2857142857142858) internal successors, (126), 107 states have internal predecessors, (126), 16 states have call successors, (16), 15 states have call predecessors, (16), 15 states have return successors, (22), 14 states have call predecessors, (22), 16 states have call successors, (22) [2024-11-22 02:06:06,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 164 transitions. [2024-11-22 02:06:06,524 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 164 transitions. Word has length 37 [2024-11-22 02:06:06,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:06,525 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 164 transitions. [2024-11-22 02:06:06,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-22 02:06:06,525 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 164 transitions. [2024-11-22 02:06:06,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-22 02:06:06,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:06,526 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] [2024-11-22 02:06:06,526 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 02:06:06,526 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:06,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:06,527 INFO L85 PathProgramCache]: Analyzing trace with hash -1599675381, now seen corresponding path program 1 times [2024-11-22 02:06:06,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:06,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388334647] [2024-11-22 02:06:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:06,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:06,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:06,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:06,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388334647] [2024-11-22 02:06:06,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388334647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:06,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:06,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:06,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388522692] [2024-11-22 02:06:06,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:06,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:06,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:06,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:06,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:06,655 INFO L87 Difference]: Start difference. First operand 130 states and 164 transitions. Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:06:06,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:06,899 INFO L93 Difference]: Finished difference Result 487 states and 657 transitions. [2024-11-22 02:06:06,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:06:06,900 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 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 45 [2024-11-22 02:06:06,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:06,904 INFO L225 Difference]: With dead ends: 487 [2024-11-22 02:06:06,907 INFO L226 Difference]: Without dead ends: 364 [2024-11-22 02:06:06,909 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:06:06,912 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 224 mSDsluCounter, 500 mSDsCounter, 0 mSdLazyCounter, 92 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 628 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 92 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:06,913 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 628 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 92 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:06,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2024-11-22 02:06:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2024-11-22 02:06:07,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 268 states have (on average 1.2761194029850746) internal successors, (342), 293 states have internal predecessors, (342), 46 states have call successors, (46), 43 states have call predecessors, (46), 45 states have return successors, (86), 42 states have call predecessors, (86), 46 states have call successors, (86) [2024-11-22 02:06:07,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 474 transitions. [2024-11-22 02:06:07,022 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 474 transitions. Word has length 45 [2024-11-22 02:06:07,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:07,022 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 474 transitions. [2024-11-22 02:06:07,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 3 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-22 02:06:07,023 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 474 transitions. [2024-11-22 02:06:07,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-22 02:06:07,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:07,033 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] [2024-11-22 02:06:07,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 02:06:07,034 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:07,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:07,034 INFO L85 PathProgramCache]: Analyzing trace with hash 414561125, now seen corresponding path program 1 times [2024-11-22 02:06:07,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:07,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1225853054] [2024-11-22 02:06:07,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:07,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:07,316 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:07,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1225853054] [2024-11-22 02:06:07,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1225853054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:07,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:07,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-22 02:06:07,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518080116] [2024-11-22 02:06:07,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:07,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:07,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:07,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:07,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:07,318 INFO L87 Difference]: Start difference. First operand 360 states and 474 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-22 02:06:07,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:07,535 INFO L93 Difference]: Finished difference Result 428 states and 548 transitions. [2024-11-22 02:06:07,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-22 02:06:07,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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 49 [2024-11-22 02:06:07,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:07,538 INFO L225 Difference]: With dead ends: 428 [2024-11-22 02:06:07,538 INFO L226 Difference]: Without dead ends: 426 [2024-11-22 02:06:07,539 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2024-11-22 02:06:07,540 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 122 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 155 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 155 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:07,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [125 Valid, 335 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-22 02:06:07,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 424. [2024-11-22 02:06:07,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 424 states, 317 states have (on average 1.2397476340694007) internal successors, (393), 342 states have internal predecessors, (393), 46 states have call successors, (46), 43 states have call predecessors, (46), 60 states have return successors, (105), 54 states have call predecessors, (105), 46 states have call successors, (105) [2024-11-22 02:06:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 424 states to 424 states and 544 transitions. [2024-11-22 02:06:07,568 INFO L78 Accepts]: Start accepts. Automaton has 424 states and 544 transitions. Word has length 49 [2024-11-22 02:06:07,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:07,568 INFO L471 AbstractCegarLoop]: Abstraction has 424 states and 544 transitions. [2024-11-22 02:06:07,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 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) [2024-11-22 02:06:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 424 states and 544 transitions. [2024-11-22 02:06:07,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 02:06:07,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:07,570 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, 1, 1, 1, 1] [2024-11-22 02:06:07,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 02:06:07,570 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:07,570 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:07,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1510129521, now seen corresponding path program 1 times [2024-11-22 02:06:07,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:07,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633342860] [2024-11-22 02:06:07,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:07,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:07,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:07,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:07,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633342860] [2024-11-22 02:06:07,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633342860] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:07,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:07,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:07,618 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505161033] [2024-11-22 02:06:07,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:07,618 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:07,618 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:07,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:07,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:07,619 INFO L87 Difference]: Start difference. First operand 424 states and 544 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:07,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:07,653 INFO L93 Difference]: Finished difference Result 850 states and 1147 transitions. [2024-11-22 02:06:07,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:07,653 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 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 55 [2024-11-22 02:06:07,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:07,656 INFO L225 Difference]: With dead ends: 850 [2024-11-22 02:06:07,656 INFO L226 Difference]: Without dead ends: 433 [2024-11-22 02:06:07,657 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:07,657 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 0 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:07,658 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 418 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:07,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-22 02:06:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 433. [2024-11-22 02:06:07,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 326 states have (on average 1.2331288343558282) internal successors, (402), 351 states have internal predecessors, (402), 46 states have call successors, (46), 43 states have call predecessors, (46), 60 states have return successors, (105), 54 states have call predecessors, (105), 46 states have call successors, (105) [2024-11-22 02:06:07,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 553 transitions. [2024-11-22 02:06:07,702 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 553 transitions. Word has length 55 [2024-11-22 02:06:07,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:07,702 INFO L471 AbstractCegarLoop]: Abstraction has 433 states and 553 transitions. [2024-11-22 02:06:07,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-22 02:06:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 553 transitions. [2024-11-22 02:06:07,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-22 02:06:07,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:07,704 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, 1, 1, 1, 1] [2024-11-22 02:06:07,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 02:06:07,704 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:07,704 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:07,704 INFO L85 PathProgramCache]: Analyzing trace with hash -1644143027, now seen corresponding path program 1 times [2024-11-22 02:06:07,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:07,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626489279] [2024-11-22 02:06:07,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:07,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:07,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:07,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:07,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:07,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626489279] [2024-11-22 02:06:07,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626489279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:07,750 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:07,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:07,750 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955711899] [2024-11-22 02:06:07,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:07,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:07,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:07,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:07,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:07,751 INFO L87 Difference]: Start difference. First operand 433 states and 553 transitions. Second operand has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:07,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:07,788 INFO L93 Difference]: Finished difference Result 837 states and 1110 transitions. [2024-11-22 02:06:07,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:07,789 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2024-11-22 02:06:07,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:07,791 INFO L225 Difference]: With dead ends: 837 [2024-11-22 02:06:07,791 INFO L226 Difference]: Without dead ends: 411 [2024-11-22 02:06:07,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 02:06:07,793 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 93 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:07,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 312 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:07,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 411 states. [2024-11-22 02:06:07,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 411 to 411. [2024-11-22 02:06:07,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 309 states have (on average 1.2297734627831716) internal successors, (380), 332 states have internal predecessors, (380), 45 states have call successors, (45), 42 states have call predecessors, (45), 56 states have return successors, (96), 51 states have call predecessors, (96), 45 states have call successors, (96) [2024-11-22 02:06:07,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 521 transitions. [2024-11-22 02:06:07,815 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 521 transitions. Word has length 55 [2024-11-22 02:06:07,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:07,816 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 521 transitions. [2024-11-22 02:06:07,816 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.2) internal successors, (46), 5 states have internal predecessors, (46), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-22 02:06:07,816 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 521 transitions. [2024-11-22 02:06:07,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-22 02:06:07,817 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:07,818 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:07,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 02:06:07,818 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:07,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:07,818 INFO L85 PathProgramCache]: Analyzing trace with hash -493181504, now seen corresponding path program 1 times [2024-11-22 02:06:07,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:07,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390747012] [2024-11-22 02:06:07,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:07,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:07,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 02:06:08,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:08,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390747012] [2024-11-22 02:06:08,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390747012] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:08,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852534658] [2024-11-22 02:06:08,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:08,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:08,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:08,028 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:08,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 02:06:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:08,135 INFO L255 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-22 02:06:08,150 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 16 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-22 02:06:08,601 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 02:06:08,916 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-22 02:06:08,917 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852534658] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 02:06:08,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 02:06:08,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2024-11-22 02:06:08,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355048612] [2024-11-22 02:06:08,921 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 02:06:08,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 02:06:08,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:08,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 02:06:08,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:08,923 INFO L87 Difference]: Start difference. First operand 411 states and 521 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:06:09,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:09,120 INFO L93 Difference]: Finished difference Result 910 states and 1228 transitions. [2024-11-22 02:06:09,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 02:06:09,120 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 101 [2024-11-22 02:06:09,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:09,125 INFO L225 Difference]: With dead ends: 910 [2024-11-22 02:06:09,125 INFO L226 Difference]: Without dead ends: 506 [2024-11-22 02:06:09,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 196 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2024-11-22 02:06:09,127 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 93 mSDsluCounter, 597 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 749 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:09,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 749 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:09,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2024-11-22 02:06:09,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 473. [2024-11-22 02:06:09,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 473 states, 355 states have (on average 1.2253521126760563) internal successors, (435), 379 states have internal predecessors, (435), 56 states have call successors, (56), 54 states have call predecessors, (56), 61 states have return successors, (118), 57 states have call predecessors, (118), 56 states have call successors, (118) [2024-11-22 02:06:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 609 transitions. [2024-11-22 02:06:09,166 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 609 transitions. Word has length 101 [2024-11-22 02:06:09,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:09,167 INFO L471 AbstractCegarLoop]: Abstraction has 473 states and 609 transitions. [2024-11-22 02:06:09,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 8 states have internal predecessors, (98), 3 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:06:09,168 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 609 transitions. [2024-11-22 02:06:09,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 02:06:09,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:09,173 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 02:06:09,182 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 02:06:09,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:09,374 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:09,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:09,375 INFO L85 PathProgramCache]: Analyzing trace with hash -879070667, now seen corresponding path program 2 times [2024-11-22 02:06:09,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:09,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309330351] [2024-11-22 02:06:09,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 02:06:09,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:09,457 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 02:06:09,462 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 02:06:09,701 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 47 proven. 8 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2024-11-22 02:06:09,701 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:09,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309330351] [2024-11-22 02:06:09,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309330351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:09,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258305944] [2024-11-22 02:06:09,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-22 02:06:09,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:09,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:09,706 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:09,707 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 02:06:09,789 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-22 02:06:09,790 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-22 02:06:09,791 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-22 02:06:09,794 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:09,863 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-22 02:06:09,864 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:06:09,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1258305944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:09,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:06:09,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 6 [2024-11-22 02:06:09,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046490067] [2024-11-22 02:06:09,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:09,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 02:06:09,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:09,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 02:06:09,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-22 02:06:09,866 INFO L87 Difference]: Start difference. First operand 473 states and 609 transitions. Second operand has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:06:10,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:10,081 INFO L93 Difference]: Finished difference Result 1140 states and 1543 transitions. [2024-11-22 02:06:10,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-22 02:06:10,082 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 147 [2024-11-22 02:06:10,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:10,085 INFO L225 Difference]: With dead ends: 1140 [2024-11-22 02:06:10,085 INFO L226 Difference]: Without dead ends: 808 [2024-11-22 02:06:10,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-22 02:06:10,087 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 141 mSDsluCounter, 536 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:10,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 716 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 02:06:10,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 808 states. [2024-11-22 02:06:10,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 808 to 789. [2024-11-22 02:06:10,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 593 states have (on average 1.2175379426644182) internal successors, (722), 627 states have internal predecessors, (722), 94 states have call successors, (94), 90 states have call predecessors, (94), 101 states have return successors, (194), 94 states have call predecessors, (194), 94 states have call successors, (194) [2024-11-22 02:06:10,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1010 transitions. [2024-11-22 02:06:10,128 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1010 transitions. Word has length 147 [2024-11-22 02:06:10,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:10,129 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1010 transitions. [2024-11-22 02:06:10,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.666666666666668) internal successors, (106), 6 states have internal predecessors, (106), 3 states have call successors, (14), 4 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-22 02:06:10,129 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1010 transitions. [2024-11-22 02:06:10,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 02:06:10,131 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:10,131 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 02:06:10,140 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 02:06:10,335 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-22 02:06:10,335 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:10,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:10,335 INFO L85 PathProgramCache]: Analyzing trace with hash -696270791, now seen corresponding path program 1 times [2024-11-22 02:06:10,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:10,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544436199] [2024-11-22 02:06:10,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:10,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:10,457 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2024-11-22 02:06:10,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:10,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [544436199] [2024-11-22 02:06:10,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [544436199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 02:06:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 02:06:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445859471] [2024-11-22 02:06:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:10,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:10,460 INFO L87 Difference]: Start difference. First operand 789 states and 1010 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:06:10,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:10,748 INFO L93 Difference]: Finished difference Result 1579 states and 1997 transitions. [2024-11-22 02:06:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:10,752 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 147 [2024-11-22 02:06:10,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:10,756 INFO L225 Difference]: With dead ends: 1579 [2024-11-22 02:06:10,756 INFO L226 Difference]: Without dead ends: 842 [2024-11-22 02:06:10,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 02:06:10,758 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 185 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 200 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:10,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 200 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 02:06:10,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 842 states. [2024-11-22 02:06:10,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 842 to 788. [2024-11-22 02:06:10,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 788 states, 589 states have (on average 1.2003395585738539) internal successors, (707), 624 states have internal predecessors, (707), 94 states have call successors, (94), 88 states have call predecessors, (94), 104 states have return successors, (181), 93 states have call predecessors, (181), 94 states have call successors, (181) [2024-11-22 02:06:10,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 788 states to 788 states and 982 transitions. [2024-11-22 02:06:10,806 INFO L78 Accepts]: Start accepts. Automaton has 788 states and 982 transitions. Word has length 147 [2024-11-22 02:06:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:10,807 INFO L471 AbstractCegarLoop]: Abstraction has 788 states and 982 transitions. [2024-11-22 02:06:10,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 3 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 02:06:10,807 INFO L276 IsEmpty]: Start isEmpty. Operand 788 states and 982 transitions. [2024-11-22 02:06:10,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-22 02:06:10,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 02:06:10,809 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 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] [2024-11-22 02:06:10,809 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 02:06:10,809 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 02:06:10,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 02:06:10,810 INFO L85 PathProgramCache]: Analyzing trace with hash -2095224393, now seen corresponding path program 1 times [2024-11-22 02:06:10,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 02:06:10,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904551862] [2024-11-22 02:06:10,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:10,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 02:06:10,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:10,888 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 43 proven. 6 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2024-11-22 02:06:10,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 02:06:10,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904551862] [2024-11-22 02:06:10,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904551862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 02:06:10,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822219174] [2024-11-22 02:06:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 02:06:10,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:10,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 02:06:10,891 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 02:06:10,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 02:06:11,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 02:06:11,019 INFO L255 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 02:06:11,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 02:06:11,052 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-22 02:06:11,052 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 02:06:11,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822219174] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 02:06:11,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 02:06:11,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2024-11-22 02:06:11,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575711807] [2024-11-22 02:06:11,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 02:06:11,053 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 02:06:11,053 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 02:06:11,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 02:06:11,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:11,054 INFO L87 Difference]: Start difference. First operand 788 states and 982 transitions. Second operand has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 02:06:11,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 02:06:11,090 INFO L93 Difference]: Finished difference Result 1059 states and 1314 transitions. [2024-11-22 02:06:11,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 02:06:11,091 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 147 [2024-11-22 02:06:11,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 02:06:11,091 INFO L225 Difference]: With dead ends: 1059 [2024-11-22 02:06:11,092 INFO L226 Difference]: Without dead ends: 0 [2024-11-22 02:06:11,093 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-22 02:06:11,094 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 02:06:11,094 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 400 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 02:06:11,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-22 02:06:11,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-22 02:06:11,094 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) [2024-11-22 02:06:11,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-22 02:06:11,095 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 147 [2024-11-22 02:06:11,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 02:06:11,095 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-22 02:06:11,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.6) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-22 02:06:11,096 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-22 02:06:11,096 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-22 02:06:11,098 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-22 02:06:11,106 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 02:06:11,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 02:06:11,305 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 02:06:11,307 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-22 02:06:13,008 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-22 02:06:13,026 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-22 02:06:13,046 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and .cse0 (= |old(~pumpRunning~0)| 0) (<= 1 |old(~waterLevel~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-22 02:06:13,064 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= |old(~pumpRunning~0)| 0))) (or (and .cse0 (= ~waterLevel~0 1) (= ~waterLevel~0 ~systemActive~0)) (and (<= 2 ~waterLevel~0) (= 1 ~systemActive~0) .cse0)))) Eliminated clause: (and (= ~pumpRunning~0 0) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 2 ~waterLevel~0) .cse0) (and .cse0 (= ~waterLevel~0 1))))) [2024-11-22 02:06:13,075 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and .cse0 (<= 2 |old(~waterLevel~0)|)) (and (= ~pumpRunning~0 0) .cse0 (<= 1 |old(~waterLevel~0)|)))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) .cse0 (<= 1 ~waterLevel~0)) (and (<= 2 ~waterLevel~0) .cse0))) [2024-11-22 02:06:13,079 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) Eliminated clause: (and (= 1 ~systemActive~0) (<= 1 ~waterLevel~0)) [2024-11-22 02:06:13,084 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 02:06:13 BoogieIcfgContainer [2024-11-22 02:06:13,084 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-22 02:06:13,085 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-22 02:06:13,087 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-22 02:06:13,087 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-22 02:06:13,087 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:06:05" (3/4) ... [2024-11-22 02:06:13,090 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-22 02:06:13,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-22 02:06:13,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-22 02:06:13,094 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-22 02:06:13,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-22 02:06:13,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-22 02:06:13,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-22 02:06:13,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-22 02:06:13,095 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-22 02:06:13,096 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-22 02:06:13,107 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-22 02:06:13,108 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-22 02:06:13,109 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-22 02:06:13,109 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:13,110 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-22 02:06:13,251 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-22 02:06:13,252 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-22 02:06:13,252 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-22 02:06:13,252 INFO L158 Benchmark]: Toolchain (without parser) took 10008.87ms. Allocated memory was 167.8MB in the beginning and 264.2MB in the end (delta: 96.5MB). Free memory was 97.0MB in the beginning and 180.2MB in the end (delta: -83.3MB). Peak memory consumption was 15.4MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,253 INFO L158 Benchmark]: CDTParser took 3.65ms. Allocated memory is still 167.8MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-22 02:06:13,253 INFO L158 Benchmark]: CACSL2BoogieTranslator took 809.20ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 130.3MB in the end (delta: -33.6MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,253 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.54ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 128.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,254 INFO L158 Benchmark]: Boogie Preprocessor took 87.64ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 125.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,254 INFO L158 Benchmark]: RCFGBuilder took 850.00ms. Allocated memory is still 167.8MB. Free memory was 125.5MB in the beginning and 104.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,255 INFO L158 Benchmark]: TraceAbstraction took 8011.36ms. Allocated memory was 167.8MB in the beginning and 264.2MB in the end (delta: 96.5MB). Free memory was 104.2MB in the beginning and 188.6MB in the end (delta: -84.4MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,255 INFO L158 Benchmark]: Witness Printer took 166.81ms. Allocated memory is still 264.2MB. Free memory was 188.6MB in the beginning and 180.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-22 02:06:13,258 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.65ms. Allocated memory is still 167.8MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 809.20ms. Allocated memory is still 167.8MB. Free memory was 96.7MB in the beginning and 130.3MB in the end (delta: -33.6MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.54ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 128.1MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 87.64ms. Allocated memory is still 167.8MB. Free memory was 128.1MB in the beginning and 125.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 850.00ms. Allocated memory is still 167.8MB. Free memory was 125.5MB in the beginning and 104.5MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 8011.36ms. Allocated memory was 167.8MB in the beginning and 264.2MB in the end (delta: 96.5MB). Free memory was 104.2MB in the beginning and 188.6MB in the end (delta: -84.4MB). Peak memory consumption was 122.7MB. Max. memory is 16.1GB. * Witness Printer took 166.81ms. Allocated memory is still 264.2MB. Free memory was 188.6MB in the beginning and 180.2MB 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,"wsllib_check.i","") [49] - GenericResultAtLocation [Line: 58]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [58] - GenericResultAtLocation [Line: 96]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [96] - GenericResultAtLocation [Line: 347]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [347] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [415] - GenericResultAtLocation [Line: 519]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification4_spec.i","") [519] - GenericResultAtLocation [Line: 545]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [545] - GenericResultAtLocation [Line: 911]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [911] * 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: 54]: 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 10 procedures, 103 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.1s, OverallIterations: 12, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.1s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1046 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1026 mSDsluCounter, 4375 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2971 mSDsCounter, 142 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 801 IncrementalHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 142 mSolverCounterUnsat, 1404 mSDtfsCounter, 801 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 578 GetRequests, 517 SyntacticMatches, 5 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=789occurred in iteration=10, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 114 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 1241 NumberOfCodeBlocks, 1241 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 1326 ConstructedInterpolants, 0 QuantifiedInterpolants, 2116 SizeOfPredicates, 3 NumberOfNonLiveVariables, 1204 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 16 InterpolantComputations, 11 PerfectInterpolantSequences, 552/594 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: 360]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 361]: Loop Invariant Derived loop invariant: ((((2 <= waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= waterLevel))) - InvariantResult [Line: 923]: Loop Invariant Derived loop invariant: 0 - ProcedureContractResult [Line: 245]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 135]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 <= waterLevel)) && (1 == systemActive))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 443]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((pumpRunning == 0) && (1 == systemActive)) && (waterLevel == 1)) || ((2 <= waterLevel) && (1 == systemActive))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 913]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 111]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((((\old(pumpRunning) != 0) || (((2 <= waterLevel) && (1 == systemActive)) && (\old(waterLevel) == waterLevel))) || (waterLevel == 1)) && (((\old(pumpRunning) != 0) || (((2 <= waterLevel) && (1 == systemActive)) && (\old(waterLevel) == waterLevel))) || (\old(waterLevel) < 2))) && ((1 < waterLevel) || ((pumpRunning == 0) && (waterLevel == 1)))) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (1 <= \old(waterLevel))))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 143]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: ((pumpRunning == 0) && (((2 <= waterLevel) && (1 == systemActive)) || ((1 == systemActive) && (waterLevel == 1)))) Ensures: ((((pumpRunning == 0) || (waterLevel != systemActive)) && ((((2 <= waterLevel) && (1 == systemActive)) && (\old(pumpRunning) == 0)) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel == 1)))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 431]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 == systemActive)) && (1 <= waterLevel)) || ((2 <= waterLevel) && (1 == systemActive))) Ensures: (((((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel)) && (2 <= waterLevel)) && (((1 == systemActive) && (2 <= \old(waterLevel))) || (((pumpRunning == 0) && (1 == systemActive)) && (1 <= \old(waterLevel))))) && (((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 169]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: ((((1 == systemActive) && (1 <= waterLevel)) && ((pumpRunning == 0) || (1 < waterLevel))) && (((((systemActive == \old(systemActive)) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) - ProcedureContractResult [Line: 253]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((1 == systemActive) && (1 <= waterLevel)) Ensures: (((1 == systemActive) && (1 <= waterLevel)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts)))) RESULT: Ultimate proved your program to be correct! [2024-11-22 02:06:13,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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