./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 04:03:13,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 04:03:13,953 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 04:03:13,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 04:03:13,957 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 04:03:13,976 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 04:03:13,976 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 04:03:13,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 04:03:13,977 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 04:03:13,977 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 04:03:13,977 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 04:03:13,977 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 04:03:13,977 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 04:03:13,978 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 04:03:13,978 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 04:03:13,978 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 04:03:13,979 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:13,979 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 04:03:13,979 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:13,980 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 04:03:13,980 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/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 -> e7a194b3d6e079d2329a0d70eaa59b34ff3d58300de8b046ef1cd7cff7f67b94 [2025-01-09 04:03:14,260 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 04:03:14,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 04:03:14,272 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 04:03:14,275 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 04:03:14,275 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 04:03:14,276 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2025-01-09 04:03:15,561 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abf0229f2/d265e8494fe64434a6537d052ea7cf8a/FLAG7bb3dfad1 [2025-01-09 04:03:15,867 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 04:03:15,867 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c [2025-01-09 04:03:15,876 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abf0229f2/d265e8494fe64434a6537d052ea7cf8a/FLAG7bb3dfad1 [2025-01-09 04:03:15,887 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/abf0229f2/d265e8494fe64434a6537d052ea7cf8a [2025-01-09 04:03:15,889 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 04:03:15,890 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 04:03:15,891 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:15,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 04:03:15,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 04:03:15,895 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:15" (1/1) ... [2025-01-09 04:03:15,896 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@80e0489 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:15, skipping insertion in model container [2025-01-09 04:03:15,896 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 04:03:15" (1/1) ... [2025-01-09 04:03:15,922 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 04:03:16,152 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2025-01-09 04:03:16,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:16,176 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 04:03:16,182 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2025-01-09 04:03:16,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] [2025-01-09 04:03:16,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] [2025-01-09 04:03:16,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] [2025-01-09 04:03:16,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] [2025-01-09 04:03:16,183 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] [2025-01-09 04:03:16,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] [2025-01-09 04:03:16,184 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] [2025-01-09 04:03:16,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product53.cil.c[17915,17928] [2025-01-09 04:03:16,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 04:03:16,262 INFO L204 MainTranslator]: Completed translation [2025-01-09 04:03:16,263 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16 WrapperNode [2025-01-09 04:03:16,264 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 04:03:16,264 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:16,264 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 04:03:16,264 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 04:03:16,268 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,289 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 230 [2025-01-09 04:03:16,289 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 04:03:16,289 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 04:03:16,289 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 04:03:16,290 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 04:03:16,295 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,295 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,297 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,304 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]. [2025-01-09 04:03:16,305 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,305 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,308 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,308 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,310 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,311 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,312 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,313 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 04:03:16,316 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 04:03:16,316 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 04:03:16,316 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 04:03:16,317 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (1/1) ... [2025-01-09 04:03:16,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 04:03:16,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:16,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 04:03:16,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 04:03:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 04:03:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2025-01-09 04:03:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2025-01-09 04:03:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 04:03:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 04:03:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 04:03:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 04:03:16,367 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:16,367 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2025-01-09 04:03:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2025-01-09 04:03:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2025-01-09 04:03:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2025-01-09 04:03:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2025-01-09 04:03:16,368 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2025-01-09 04:03:16,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 04:03:16,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 04:03:16,416 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 04:03:16,418 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 04:03:16,598 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2025-01-09 04:03:16,598 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 04:03:16,606 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 04:03:16,606 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2025-01-09 04:03:16,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:16 BoogieIcfgContainer [2025-01-09 04:03:16,606 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 04:03:16,608 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 04:03:16,608 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 04:03:16,611 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 04:03:16,611 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 04:03:15" (1/3) ... [2025-01-09 04:03:16,612 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617a0f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:16, skipping insertion in model container [2025-01-09 04:03:16,612 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 04:03:16" (2/3) ... [2025-01-09 04:03:16,613 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@617a0f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 04:03:16, skipping insertion in model container [2025-01-09 04:03:16,616 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:16" (3/3) ... [2025-01-09 04:03:16,617 INFO L128 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product53.cil.c [2025-01-09 04:03:16,628 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 04:03:16,629 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG minepump_spec5_product53.cil.c that has 10 procedures, 103 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2025-01-09 04:03:16,667 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 04:03:16,676 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;@2f6b8abb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 04:03:16,676 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 04:03:16,679 INFO L276 IsEmpty]: Start isEmpty. Operand has 103 states, 76 states have (on average 1.355263157894737) internal successors, (103), 86 states have internal predecessors, (103), 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) [2025-01-09 04:03:16,684 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2025-01-09 04:03:16,684 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:16,684 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:16,685 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:16,688 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:16,688 INFO L85 PathProgramCache]: Analyzing trace with hash 798217373, now seen corresponding path program 1 times [2025-01-09 04:03:16,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:16,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836152131] [2025-01-09 04:03:16,693 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:16,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:16,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-01-09 04:03:16,783 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-01-09 04:03:16,784 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:16,784 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:16,905 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:16,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:16,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836152131] [2025-01-09 04:03:16,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836152131] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:16,907 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:16,907 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:16,908 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233175595] [2025-01-09 04:03:16,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:16,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:16,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:16,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:16,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:16,927 INFO L87 Difference]: Start difference. First operand has 103 states, 76 states have (on average 1.355263157894737) internal successors, (103), 86 states have internal predecessors, (103), 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 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:16,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:16,958 INFO L93 Difference]: Finished difference Result 197 states and 264 transitions. [2025-01-09 04:03:16,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:16,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 36 [2025-01-09 04:03:16,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:16,967 INFO L225 Difference]: With dead ends: 197 [2025-01-09 04:03:16,968 INFO L226 Difference]: Without dead ends: 94 [2025-01-09 04:03:16,972 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:16,975 INFO L435 NwaCegarLoop]: 129 mSDtfsCounter, 109 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 129 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 [2025-01-09 04:03:16,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 129 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:16,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2025-01-09 04:03:17,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2025-01-09 04:03:17,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 69 states have (on average 1.3043478260869565) internal successors, (90), 78 states have internal predecessors, (90), 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) [2025-01-09 04:03:17,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 121 transitions. [2025-01-09 04:03:17,011 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 121 transitions. Word has length 36 [2025-01-09 04:03:17,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,013 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 121 transitions. [2025-01-09 04:03:17,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2025-01-09 04:03:17,013 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 121 transitions. [2025-01-09 04:03:17,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2025-01-09 04:03:17,016 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,016 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 04:03:17,016 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,017 INFO L85 PathProgramCache]: Analyzing trace with hash -928827884, now seen corresponding path program 1 times [2025-01-09 04:03:17,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189188847] [2025-01-09 04:03:17,017 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-01-09 04:03:17,031 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-01-09 04:03:17,031 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,031 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:17,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189188847] [2025-01-09 04:03:17,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189188847] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:17,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625563921] [2025-01-09 04:03:17,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:17,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,079 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:17,079 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:17,079 INFO L87 Difference]: Start difference. First operand 94 states and 121 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 04:03:17,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,091 INFO L93 Difference]: Finished difference Result 155 states and 199 transitions. [2025-01-09 04:03:17,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:17,092 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 41 [2025-01-09 04:03:17,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,093 INFO L225 Difference]: With dead ends: 155 [2025-01-09 04:03:17,093 INFO L226 Difference]: Without dead ends: 86 [2025-01-09 04:03:17,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:17,094 INFO L435 NwaCegarLoop]: 109 mSDtfsCounter, 12 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 203 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 [2025-01-09 04:03:17,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 203 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:17,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2025-01-09 04:03:17,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2025-01-09 04:03:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 64 states have (on average 1.3125) internal successors, (84), 73 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) [2025-01-09 04:03:17,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2025-01-09 04:03:17,102 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 41 [2025-01-09 04:03:17,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,103 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2025-01-09 04:03:17,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 1 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2025-01-09 04:03:17,103 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2025-01-09 04:03:17,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2025-01-09 04:03:17,104 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,104 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 04:03:17,104 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,105 INFO L85 PathProgramCache]: Analyzing trace with hash -96530447, now seen corresponding path program 1 times [2025-01-09 04:03:17,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019330351] [2025-01-09 04:03:17,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,113 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-01-09 04:03:17,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-01-09 04:03:17,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,184 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:17,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019330351] [2025-01-09 04:03:17,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019330351] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 04:03:17,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666684100] [2025-01-09 04:03:17,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 04:03:17,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 04:03:17,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:17,185 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:17,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,221 INFO L93 Difference]: Finished difference Result 214 states and 283 transitions. [2025-01-09 04:03:17,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 04:03:17,222 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 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 [2025-01-09 04:03:17,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,223 INFO L225 Difference]: With dead ends: 214 [2025-01-09 04:03:17,223 INFO L226 Difference]: Without dead ends: 136 [2025-01-09 04:03:17,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 04:03:17,224 INFO L435 NwaCegarLoop]: 127 mSDtfsCounter, 81 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 203 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 [2025-01-09 04:03:17,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 203 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:17,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-01-09 04:03:17,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 134. [2025-01-09 04:03:17,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 100 states have (on average 1.29) internal successors, (129), 108 states have internal predecessors, (129), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2025-01-09 04:03:17,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 171 transitions. [2025-01-09 04:03:17,239 INFO L78 Accepts]: Start accepts. Automaton has 134 states and 171 transitions. Word has length 45 [2025-01-09 04:03:17,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,240 INFO L471 AbstractCegarLoop]: Abstraction has 134 states and 171 transitions. [2025-01-09 04:03:17,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2025-01-09 04:03:17,240 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 171 transitions. [2025-01-09 04:03:17,241 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-09 04:03:17,241 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,241 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 04:03:17,241 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,242 INFO L85 PathProgramCache]: Analyzing trace with hash 256102716, now seen corresponding path program 1 times [2025-01-09 04:03:17,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042964827] [2025-01-09 04:03:17,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-09 04:03:17,257 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-09 04:03:17,257 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,257 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,331 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:17,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042964827] [2025-01-09 04:03:17,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042964827] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:17,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432982205] [2025-01-09 04:03:17,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:17,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:17,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:17,333 INFO L87 Difference]: Start difference. First operand 134 states and 171 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-09 04:03:17,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,374 INFO L93 Difference]: Finished difference Result 262 states and 349 transitions. [2025-01-09 04:03:17,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:17,374 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 [2025-01-09 04:03:17,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,376 INFO L225 Difference]: With dead ends: 262 [2025-01-09 04:03:17,376 INFO L226 Difference]: Without dead ends: 136 [2025-01-09 04:03:17,376 INFO L434 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 [2025-01-09 04:03:17,377 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 91 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 315 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 [2025-01-09 04:03:17,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 315 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:17,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2025-01-09 04:03:17,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2025-01-09 04:03:17,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 102 states have (on average 1.2843137254901962) internal successors, (131), 110 states have internal predecessors, (131), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2025-01-09 04:03:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 173 transitions. [2025-01-09 04:03:17,388 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 173 transitions. Word has length 55 [2025-01-09 04:03:17,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,388 INFO L471 AbstractCegarLoop]: Abstraction has 136 states and 173 transitions. [2025-01-09 04:03:17,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-09 04:03:17,389 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 173 transitions. [2025-01-09 04:03:17,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-09 04:03:17,389 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,390 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,390 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 04:03:17,392 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,393 INFO L85 PathProgramCache]: Analyzing trace with hash -166599110, now seen corresponding path program 1 times [2025-01-09 04:03:17,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044203990] [2025-01-09 04:03:17,393 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-09 04:03:17,408 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-09 04:03:17,408 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,408 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:17,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044203990] [2025-01-09 04:03:17,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044203990] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 04:03:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97159904] [2025-01-09 04:03:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 04:03:17,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 04:03:17,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:17,465 INFO L87 Difference]: Start difference. First operand 136 states and 173 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-09 04:03:17,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,485 INFO L93 Difference]: Finished difference Result 267 states and 348 transitions. [2025-01-09 04:03:17,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 04:03:17,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 [2025-01-09 04:03:17,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,487 INFO L225 Difference]: With dead ends: 267 [2025-01-09 04:03:17,487 INFO L226 Difference]: Without dead ends: 139 [2025-01-09 04:03:17,487 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-01-09 04:03:17,488 INFO L435 NwaCegarLoop]: 107 mSDtfsCounter, 0 mSDsluCounter, 315 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 422 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 [2025-01-09 04:03:17,488 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 422 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 04:03:17,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2025-01-09 04:03:17,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2025-01-09 04:03:17,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 105 states have (on average 1.276190476190476) internal successors, (134), 113 states have internal predecessors, (134), 18 states have call successors, (18), 15 states have call predecessors, (18), 15 states have return successors, (24), 16 states have call predecessors, (24), 18 states have call successors, (24) [2025-01-09 04:03:17,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 176 transitions. [2025-01-09 04:03:17,497 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 176 transitions. Word has length 55 [2025-01-09 04:03:17,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,498 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 176 transitions. [2025-01-09 04:03:17,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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) [2025-01-09 04:03:17,498 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 176 transitions. [2025-01-09 04:03:17,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2025-01-09 04:03:17,499 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,499 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 04:03:17,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1549335618, now seen corresponding path program 1 times [2025-01-09 04:03:17,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029906105] [2025-01-09 04:03:17,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,506 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 55 statements into 1 equivalence classes. [2025-01-09 04:03:17,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 55 of 55 statements. [2025-01-09 04:03:17,510 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,510 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,571 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:17,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,571 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029906105] [2025-01-09 04:03:17,571 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029906105] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 04:03:17,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893918905] [2025-01-09 04:03:17,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 04:03:17,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,573 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 04:03:17,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:17,573 INFO L87 Difference]: Start difference. First operand 139 states and 176 transitions. Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:17,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:17,702 INFO L93 Difference]: Finished difference Result 452 states and 594 transitions. [2025-01-09 04:03:17,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 04:03:17,703 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 55 [2025-01-09 04:03:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:17,705 INFO L225 Difference]: With dead ends: 452 [2025-01-09 04:03:17,705 INFO L226 Difference]: Without dead ends: 321 [2025-01-09 04:03:17,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 04:03:17,706 INFO L435 NwaCegarLoop]: 196 mSDtfsCounter, 144 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:17,708 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 376 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 04:03:17,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2025-01-09 04:03:17,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 312. [2025-01-09 04:03:17,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 233 states have (on average 1.261802575107296) internal successors, (294), 248 states have internal predecessors, (294), 42 states have call successors, (42), 35 states have call predecessors, (42), 36 states have return successors, (67), 39 states have call predecessors, (67), 42 states have call successors, (67) [2025-01-09 04:03:17,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 403 transitions. [2025-01-09 04:03:17,741 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 403 transitions. Word has length 55 [2025-01-09 04:03:17,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:17,741 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 403 transitions. [2025-01-09 04:03:17,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 3 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2025-01-09 04:03:17,742 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 403 transitions. [2025-01-09 04:03:17,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-01-09 04:03:17,744 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:17,744 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:17,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 04:03:17,745 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:17,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:17,745 INFO L85 PathProgramCache]: Analyzing trace with hash -687557304, now seen corresponding path program 1 times [2025-01-09 04:03:17,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:17,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678982133] [2025-01-09 04:03:17,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:17,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:17,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-01-09 04:03:17,762 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-01-09 04:03:17,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:17,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:17,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-01-09 04:03:17,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:17,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678982133] [2025-01-09 04:03:17,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678982133] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:17,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:17,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 04:03:17,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180910100] [2025-01-09 04:03:17,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:17,871 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 04:03:17,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:17,871 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 04:03:17,871 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 04:03:17,871 INFO L87 Difference]: Start difference. First operand 312 states and 403 transitions. Second operand has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-09 04:03:18,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:18,182 INFO L93 Difference]: Finished difference Result 654 states and 853 transitions. [2025-01-09 04:03:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:18,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) Word has length 57 [2025-01-09 04:03:18,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:18,185 INFO L225 Difference]: With dead ends: 654 [2025-01-09 04:03:18,185 INFO L226 Difference]: Without dead ends: 350 [2025-01-09 04:03:18,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2025-01-09 04:03:18,189 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 136 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:18,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 432 Invalid, 242 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 04:03:18,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 350 states. [2025-01-09 04:03:18,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 350 to 348. [2025-01-09 04:03:18,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 259 states have (on average 1.2316602316602316) internal successors, (319), 274 states have internal predecessors, (319), 45 states have call successors, (45), 35 states have call predecessors, (45), 43 states have return successors, (80), 48 states have call predecessors, (80), 45 states have call successors, (80) [2025-01-09 04:03:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 444 transitions. [2025-01-09 04:03:18,220 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 444 transitions. Word has length 57 [2025-01-09 04:03:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:18,220 INFO L471 AbstractCegarLoop]: Abstraction has 348 states and 444 transitions. [2025-01-09 04:03:18,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.571428571428571) internal successors, (46), 6 states have internal predecessors, (46), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 3 states have call successors, (5) [2025-01-09 04:03:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 444 transitions. [2025-01-09 04:03:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2025-01-09 04:03:18,221 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:18,221 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:18,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 04:03:18,222 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:18,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash -33952808, now seen corresponding path program 1 times [2025-01-09 04:03:18,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:18,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834491736] [2025-01-09 04:03:18,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:18,231 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-01-09 04:03:18,239 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-01-09 04:03:18,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:18,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:18,392 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 04:03:18,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:18,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834491736] [2025-01-09 04:03:18,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834491736] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 04:03:18,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 04:03:18,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 04:03:18,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646768235] [2025-01-09 04:03:18,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 04:03:18,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 04:03:18,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:18,393 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 04:03:18,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-01-09 04:03:18,394 INFO L87 Difference]: Start difference. First operand 348 states and 444 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2025-01-09 04:03:18,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:18,756 INFO L93 Difference]: Finished difference Result 977 states and 1300 transitions. [2025-01-09 04:03:18,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-01-09 04:03:18,756 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 59 [2025-01-09 04:03:18,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:18,762 INFO L225 Difference]: With dead ends: 977 [2025-01-09 04:03:18,762 INFO L226 Difference]: Without dead ends: 691 [2025-01-09 04:03:18,763 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2025-01-09 04:03:18,764 INFO L435 NwaCegarLoop]: 135 mSDtfsCounter, 287 mSDsluCounter, 473 mSDsCounter, 0 mSdLazyCounter, 368 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 608 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 368 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:18,764 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 608 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 368 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:18,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2025-01-09 04:03:18,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 618. [2025-01-09 04:03:18,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 618 states, 457 states have (on average 1.2188183807439825) internal successors, (557), 486 states have internal predecessors, (557), 81 states have call successors, (81), 61 states have call predecessors, (81), 79 states have return successors, (142), 86 states have call predecessors, (142), 81 states have call successors, (142) [2025-01-09 04:03:18,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 618 states to 618 states and 780 transitions. [2025-01-09 04:03:18,840 INFO L78 Accepts]: Start accepts. Automaton has 618 states and 780 transitions. Word has length 59 [2025-01-09 04:03:18,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:18,840 INFO L471 AbstractCegarLoop]: Abstraction has 618 states and 780 transitions. [2025-01-09 04:03:18,840 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2025-01-09 04:03:18,840 INFO L276 IsEmpty]: Start isEmpty. Operand 618 states and 780 transitions. [2025-01-09 04:03:18,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-01-09 04:03:18,841 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:18,841 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:18,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 04:03:18,841 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:18,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:18,842 INFO L85 PathProgramCache]: Analyzing trace with hash 1793257763, now seen corresponding path program 1 times [2025-01-09 04:03:18,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:18,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824269044] [2025-01-09 04:03:18,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:18,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:18,856 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-01-09 04:03:18,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-01-09 04:03:18,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:18,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:19,103 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 8 proven. 19 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 04:03:19,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:19,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824269044] [2025-01-09 04:03:19,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824269044] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:19,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024986397] [2025-01-09 04:03:19,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:19,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:19,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:19,110 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:19,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 04:03:19,163 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-01-09 04:03:19,195 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-01-09 04:03:19,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:19,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:19,198 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 04:03:19,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:19,337 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 25 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 04:03:19,337 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 10 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 04:03:19,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024986397] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:19,535 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:19,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 6] total 15 [2025-01-09 04:03:19,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276557139] [2025-01-09 04:03:19,535 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:19,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-01-09 04:03:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:19,536 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-01-09 04:03:19,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2025-01-09 04:03:19,536 INFO L87 Difference]: Start difference. First operand 618 states and 780 transitions. Second operand has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2025-01-09 04:03:19,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:19,993 INFO L93 Difference]: Finished difference Result 1354 states and 1778 transitions. [2025-01-09 04:03:19,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 04:03:19,994 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) Word has length 107 [2025-01-09 04:03:19,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:19,998 INFO L225 Difference]: With dead ends: 1354 [2025-01-09 04:03:19,998 INFO L226 Difference]: Without dead ends: 796 [2025-01-09 04:03:20,000 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 211 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=604, Unknown=0, NotChecked=0, Total=812 [2025-01-09 04:03:20,001 INFO L435 NwaCegarLoop]: 212 mSDtfsCounter, 452 mSDsluCounter, 1098 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 454 SdHoareTripleChecker+Valid, 1310 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:20,001 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [454 Valid, 1310 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:20,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2025-01-09 04:03:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 700. [2025-01-09 04:03:20,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 512 states have (on average 1.2109375) internal successors, (620), 550 states have internal predecessors, (620), 94 states have call successors, (94), 79 states have call predecessors, (94), 93 states have return successors, (138), 95 states have call predecessors, (138), 94 states have call successors, (138) [2025-01-09 04:03:20,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 852 transitions. [2025-01-09 04:03:20,066 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 852 transitions. Word has length 107 [2025-01-09 04:03:20,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:20,066 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 852 transitions. [2025-01-09 04:03:20,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 10.133333333333333) internal successors, (152), 13 states have internal predecessors, (152), 7 states have call successors, (23), 4 states have call predecessors, (23), 8 states have return successors, (22), 10 states have call predecessors, (22), 7 states have call successors, (22) [2025-01-09 04:03:20,067 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 852 transitions. [2025-01-09 04:03:20,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 04:03:20,071 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:20,071 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2025-01-09 04:03:20,078 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:20,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:20,275 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:20,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:20,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1282176179, now seen corresponding path program 1 times [2025-01-09 04:03:20,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:20,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455210391] [2025-01-09 04:03:20,276 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:20,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:20,288 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 04:03:20,303 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 04:03:20,303 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:20,303 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:20,559 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 84 proven. 29 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2025-01-09 04:03:20,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:20,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455210391] [2025-01-09 04:03:20,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455210391] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:20,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1007464781] [2025-01-09 04:03:20,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:20,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:20,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:20,568 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:20,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 04:03:20,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 04:03:20,771 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 04:03:20,771 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:20,771 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:20,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 548 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-01-09 04:03:20,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:21,145 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 143 proven. 3 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2025-01-09 04:03:21,145 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:21,793 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 74 proven. 41 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-01-09 04:03:21,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1007464781] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:21,793 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:21,793 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2025-01-09 04:03:21,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727832438] [2025-01-09 04:03:21,793 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:21,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-01-09 04:03:21,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:21,795 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-01-09 04:03:21,795 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=151, Invalid=449, Unknown=0, NotChecked=0, Total=600 [2025-01-09 04:03:21,795 INFO L87 Difference]: Start difference. First operand 700 states and 852 transitions. Second operand has 25 states, 25 states have (on average 8.64) internal successors, (216), 24 states have internal predecessors, (216), 11 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (35), 10 states have call predecessors, (35), 11 states have call successors, (35) [2025-01-09 04:03:22,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:22,634 INFO L93 Difference]: Finished difference Result 1529 states and 1936 transitions. [2025-01-09 04:03:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-01-09 04:03:22,635 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 24 states have internal predecessors, (216), 11 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (35), 10 states have call predecessors, (35), 11 states have call successors, (35) Word has length 187 [2025-01-09 04:03:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:22,643 INFO L225 Difference]: With dead ends: 1529 [2025-01-09 04:03:22,643 INFO L226 Difference]: Without dead ends: 837 [2025-01-09 04:03:22,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 361 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=275, Invalid=847, Unknown=0, NotChecked=0, Total=1122 [2025-01-09 04:03:22,647 INFO L435 NwaCegarLoop]: 104 mSDtfsCounter, 477 mSDsluCounter, 724 mSDsCounter, 0 mSdLazyCounter, 1111 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 828 SdHoareTripleChecker+Invalid, 1321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:22,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 828 Invalid, 1321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1111 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-01-09 04:03:22,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 837 states. [2025-01-09 04:03:22,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 837 to 764. [2025-01-09 04:03:22,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 561 states have (on average 1.1871657754010696) internal successors, (666), 596 states have internal predecessors, (666), 107 states have call successors, (107), 92 states have call predecessors, (107), 95 states have return successors, (137), 98 states have call predecessors, (137), 107 states have call successors, (137) [2025-01-09 04:03:22,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 910 transitions. [2025-01-09 04:03:22,744 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 910 transitions. Word has length 187 [2025-01-09 04:03:22,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:22,744 INFO L471 AbstractCegarLoop]: Abstraction has 764 states and 910 transitions. [2025-01-09 04:03:22,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 8.64) internal successors, (216), 24 states have internal predecessors, (216), 11 states have call successors, (33), 6 states have call predecessors, (33), 10 states have return successors, (35), 10 states have call predecessors, (35), 11 states have call successors, (35) [2025-01-09 04:03:22,745 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 910 transitions. [2025-01-09 04:03:22,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2025-01-09 04:03:22,747 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:22,748 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2025-01-09 04:03:22,755 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-01-09 04:03:22,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:22,955 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:22,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:22,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1342564953, now seen corresponding path program 1 times [2025-01-09 04:03:22,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:22,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886784567] [2025-01-09 04:03:22,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:22,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:22,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-01-09 04:03:23,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-01-09 04:03:23,002 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:23,002 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:23,417 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 87 proven. 71 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2025-01-09 04:03:23,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:23,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886784567] [2025-01-09 04:03:23,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886784567] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:23,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160678379] [2025-01-09 04:03:23,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:23,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:23,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:23,425 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:23,426 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 04:03:23,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 199 statements into 1 equivalence classes. [2025-01-09 04:03:23,588 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 199 of 199 statements. [2025-01-09 04:03:23,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:23,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:23,590 INFO L256 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 12 conjuncts are in the unsatisfiable core [2025-01-09 04:03:23,598 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 181 proven. 11 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2025-01-09 04:03:23,788 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:24,183 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 96 proven. 61 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-01-09 04:03:24,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160678379] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:24,183 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:24,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2025-01-09 04:03:24,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813620461] [2025-01-09 04:03:24,183 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:24,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-01-09 04:03:24,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:24,185 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-01-09 04:03:24,185 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2025-01-09 04:03:24,185 INFO L87 Difference]: Start difference. First operand 764 states and 910 transitions. Second operand has 23 states, 23 states have (on average 11.043478260869565) internal successors, (254), 20 states have internal predecessors, (254), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (42), 13 states have call predecessors, (42), 9 states have call successors, (42) [2025-01-09 04:03:24,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:24,673 INFO L93 Difference]: Finished difference Result 1499 states and 1809 transitions. [2025-01-09 04:03:24,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-01-09 04:03:24,673 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 11.043478260869565) internal successors, (254), 20 states have internal predecessors, (254), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (42), 13 states have call predecessors, (42), 9 states have call successors, (42) Word has length 199 [2025-01-09 04:03:24,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:24,678 INFO L225 Difference]: With dead ends: 1499 [2025-01-09 04:03:24,678 INFO L226 Difference]: Without dead ends: 795 [2025-01-09 04:03:24,680 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 433 GetRequests, 396 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:24,681 INFO L435 NwaCegarLoop]: 117 mSDtfsCounter, 391 mSDsluCounter, 688 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 805 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:24,681 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 805 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 04:03:24,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2025-01-09 04:03:24,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 779. [2025-01-09 04:03:24,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 571 states have (on average 1.1768826619964974) internal successors, (672), 606 states have internal predecessors, (672), 107 states have call successors, (107), 97 states have call predecessors, (107), 100 states have return successors, (137), 98 states have call predecessors, (137), 107 states have call successors, (137) [2025-01-09 04:03:24,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 916 transitions. [2025-01-09 04:03:24,724 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 916 transitions. Word has length 199 [2025-01-09 04:03:24,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:24,724 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 916 transitions. [2025-01-09 04:03:24,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 11.043478260869565) internal successors, (254), 20 states have internal predecessors, (254), 9 states have call successors, (40), 5 states have call predecessors, (40), 14 states have return successors, (42), 13 states have call predecessors, (42), 9 states have call successors, (42) [2025-01-09 04:03:24,724 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 916 transitions. [2025-01-09 04:03:24,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2025-01-09 04:03:24,727 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:24,728 INFO L218 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2025-01-09 04:03:24,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:24,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:24,932 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:24,933 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:24,933 INFO L85 PathProgramCache]: Analyzing trace with hash -1231637032, now seen corresponding path program 1 times [2025-01-09 04:03:24,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:24,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507989117] [2025-01-09 04:03:24,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:24,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:24,942 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 200 statements into 1 equivalence classes. [2025-01-09 04:03:24,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 200 of 200 statements. [2025-01-09 04:03:24,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:24,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:25,381 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 92 proven. 38 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-01-09 04:03:25,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:25,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1507989117] [2025-01-09 04:03:25,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1507989117] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:25,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1424896065] [2025-01-09 04:03:25,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:25,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:25,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:25,386 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:25,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 04:03:25,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 200 statements into 1 equivalence classes. [2025-01-09 04:03:25,485 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 200 of 200 statements. [2025-01-09 04:03:25,485 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:25,485 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:25,487 INFO L256 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 04:03:25,492 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:25,651 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 127 proven. 25 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-01-09 04:03:25,651 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:26,093 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 95 proven. 44 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-09 04:03:26,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1424896065] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:26,093 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:26,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 22 [2025-01-09 04:03:26,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974734762] [2025-01-09 04:03:26,093 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:26,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-01-09 04:03:26,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:26,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-01-09 04:03:26,095 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2025-01-09 04:03:26,095 INFO L87 Difference]: Start difference. First operand 779 states and 916 transitions. Second operand has 22 states, 22 states have (on average 10.681818181818182) internal successors, (235), 21 states have internal predecessors, (235), 14 states have call successors, (42), 8 states have call predecessors, (42), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2025-01-09 04:03:26,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:26,771 INFO L93 Difference]: Finished difference Result 1501 states and 1799 transitions. [2025-01-09 04:03:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-01-09 04:03:26,772 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 10.681818181818182) internal successors, (235), 21 states have internal predecessors, (235), 14 states have call successors, (42), 8 states have call predecessors, (42), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) Word has length 200 [2025-01-09 04:03:26,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:26,777 INFO L225 Difference]: With dead ends: 1501 [2025-01-09 04:03:26,777 INFO L226 Difference]: Without dead ends: 1030 [2025-01-09 04:03:26,779 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 397 SyntacticMatches, 8 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 355 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=405, Invalid=1001, Unknown=0, NotChecked=0, Total=1406 [2025-01-09 04:03:26,779 INFO L435 NwaCegarLoop]: 152 mSDtfsCounter, 560 mSDsluCounter, 716 mSDsCounter, 0 mSdLazyCounter, 1110 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 564 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 1341 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 1110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:26,780 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [564 Valid, 868 Invalid, 1341 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 1110 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-01-09 04:03:26,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2025-01-09 04:03:26,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 957. [2025-01-09 04:03:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 957 states, 702 states have (on average 1.1766381766381766) internal successors, (826), 743 states have internal predecessors, (826), 132 states have call successors, (132), 119 states have call predecessors, (132), 122 states have return successors, (165), 122 states have call predecessors, (165), 132 states have call successors, (165) [2025-01-09 04:03:26,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 957 states to 957 states and 1123 transitions. [2025-01-09 04:03:26,845 INFO L78 Accepts]: Start accepts. Automaton has 957 states and 1123 transitions. Word has length 200 [2025-01-09 04:03:26,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:26,845 INFO L471 AbstractCegarLoop]: Abstraction has 957 states and 1123 transitions. [2025-01-09 04:03:26,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 10.681818181818182) internal successors, (235), 21 states have internal predecessors, (235), 14 states have call successors, (42), 8 states have call predecessors, (42), 14 states have return successors, (43), 15 states have call predecessors, (43), 14 states have call successors, (43) [2025-01-09 04:03:26,845 INFO L276 IsEmpty]: Start isEmpty. Operand 957 states and 1123 transitions. [2025-01-09 04:03:26,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2025-01-09 04:03:26,848 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 04:03:26,848 INFO L218 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:26,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-01-09 04:03:27,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-01-09 04:03:27,052 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 04:03:27,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 04:03:27,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1485346235, now seen corresponding path program 1 times [2025-01-09 04:03:27,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 04:03:27,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778082701] [2025-01-09 04:03:27,056 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:27,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 04:03:27,078 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 04:03:27,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 04:03:27,098 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:27,098 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 126 proven. 10 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2025-01-09 04:03:27,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 04:03:27,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778082701] [2025-01-09 04:03:27,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778082701] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 04:03:27,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550766460] [2025-01-09 04:03:27,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 04:03:27,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 04:03:27,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 04:03:27,254 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 04:03:27,257 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 04:03:27,321 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 254 statements into 1 equivalence classes. [2025-01-09 04:03:27,373 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 254 of 254 statements. [2025-01-09 04:03:27,373 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 04:03:27,374 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 04:03:27,376 INFO L256 TraceCheckSpWp]: Trace formula consists of 711 conjuncts, 30 conjuncts are in the unsatisfiable core [2025-01-09 04:03:27,381 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 04:03:27,621 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 148 proven. 87 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2025-01-09 04:03:27,622 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 04:03:28,279 INFO L134 CoverageAnalysis]: Checked inductivity of 427 backedges. 93 proven. 134 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2025-01-09 04:03:28,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550766460] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 04:03:28,279 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 04:03:28,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 11, 16] total 24 [2025-01-09 04:03:28,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283665543] [2025-01-09 04:03:28,279 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 04:03:28,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-01-09 04:03:28,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 04:03:28,281 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-01-09 04:03:28,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=457, Unknown=0, NotChecked=0, Total=552 [2025-01-09 04:03:28,281 INFO L87 Difference]: Start difference. First operand 957 states and 1123 transitions. Second operand has 24 states, 24 states have (on average 11.0) internal successors, (264), 23 states have internal predecessors, (264), 13 states have call successors, (48), 7 states have call predecessors, (48), 15 states have return successors, (52), 15 states have call predecessors, (52), 13 states have call successors, (52) [2025-01-09 04:03:30,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 04:03:30,469 INFO L93 Difference]: Finished difference Result 2869 states and 3441 transitions. [2025-01-09 04:03:30,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2025-01-09 04:03:30,469 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 11.0) internal successors, (264), 23 states have internal predecessors, (264), 13 states have call successors, (48), 7 states have call predecessors, (48), 15 states have return successors, (52), 15 states have call predecessors, (52), 13 states have call successors, (52) Word has length 254 [2025-01-09 04:03:30,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 04:03:30,471 INFO L225 Difference]: With dead ends: 2869 [2025-01-09 04:03:30,472 INFO L226 Difference]: Without dead ends: 0 [2025-01-09 04:03:30,477 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 492 SyntacticMatches, 9 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1167 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=993, Invalid=3837, Unknown=0, NotChecked=0, Total=4830 [2025-01-09 04:03:30,477 INFO L435 NwaCegarLoop]: 244 mSDtfsCounter, 1107 mSDsluCounter, 1986 mSDsCounter, 0 mSdLazyCounter, 3371 mSolverCounterSat, 493 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1107 SdHoareTripleChecker+Valid, 2230 SdHoareTripleChecker+Invalid, 3864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 493 IncrementalHoareTripleChecker+Valid, 3371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 04:03:30,477 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1107 Valid, 2230 Invalid, 3864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [493 Valid, 3371 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 04:03:30,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-01-09 04:03:30,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-01-09 04:03:30,478 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) [2025-01-09 04:03:30,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-01-09 04:03:30,479 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 254 [2025-01-09 04:03:30,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 04:03:30,479 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-01-09 04:03:30,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 11.0) internal successors, (264), 23 states have internal predecessors, (264), 13 states have call successors, (48), 7 states have call predecessors, (48), 15 states have return successors, (52), 15 states have call predecessors, (52), 13 states have call successors, (52) [2025-01-09 04:03:30,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-01-09 04:03:30,480 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2025-01-09 04:03:30,483 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2025-01-09 04:03:30,493 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-01-09 04:03:30,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-01-09 04:03:30,686 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 04:03:30,687 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2025-01-09 04:03:41,251 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-01-09 04:03:41,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.01 04:03:41 BoogieIcfgContainer [2025-01-09 04:03:41,262 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-01-09 04:03:41,263 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-01-09 04:03:41,263 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-01-09 04:03:41,263 INFO L274 PluginConnector]: Witness Printer initialized [2025-01-09 04:03:41,264 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 04:03:16" (3/4) ... [2025-01-09 04:03:41,265 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__lowWaterSensor [2025-01-09 04:03:41,269 INFO L362 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2025-01-09 04:03:41,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2025-01-09 04:03:41,275 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2025-01-09 04:03:41,276 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2025-01-09 04:03:41,276 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:41,276 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-01-09 04:03:41,345 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-01-09 04:03:41,347 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-01-09 04:03:41,347 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-01-09 04:03:41,347 INFO L158 Benchmark]: Toolchain (without parser) took 25456.78ms. Allocated memory was 167.8MB in the beginning and 494.9MB in the end (delta: 327.2MB). Free memory was 123.4MB in the beginning and 326.5MB in the end (delta: -203.0MB). Peak memory consumption was 124.3MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,347 INFO L158 Benchmark]: CDTParser took 1.08ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:41,347 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.55ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 104.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,348 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.71ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 102.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-01-09 04:03:41,348 INFO L158 Benchmark]: Boogie Preprocessor took 23.90ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 100.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,348 INFO L158 Benchmark]: RCFGBuilder took 290.14ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 82.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,348 INFO L158 Benchmark]: TraceAbstraction took 24654.97ms. Allocated memory was 167.8MB in the beginning and 494.9MB in the end (delta: 327.2MB). Free memory was 81.3MB in the beginning and 334.7MB in the end (delta: -253.4MB). Peak memory consumption was 244.7MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,349 INFO L158 Benchmark]: Witness Printer took 83.73ms. Allocated memory is still 494.9MB. Free memory was 334.7MB in the beginning and 326.5MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-01-09 04:03:41,350 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.08ms. Allocated memory is still 201.3MB. Free memory is still 116.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.55ms. Allocated memory is still 167.8MB. Free memory was 123.4MB in the beginning and 104.7MB in the end (delta: 18.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.71ms. Allocated memory is still 167.8MB. Free memory was 104.7MB in the beginning and 102.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 23.90ms. Allocated memory is still 167.8MB. Free memory was 102.9MB in the beginning and 100.8MB in the end (delta: 2.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 290.14ms. Allocated memory is still 167.8MB. Free memory was 100.8MB in the beginning and 82.2MB in the end (delta: 18.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 24654.97ms. Allocated memory was 167.8MB in the beginning and 494.9MB in the end (delta: 327.2MB). Free memory was 81.3MB in the beginning and 334.7MB in the end (delta: -253.4MB). Peak memory consumption was 244.7MB. Max. memory is 16.1GB. * Witness Printer took 83.73ms. Allocated memory is still 494.9MB. Free memory was 334.7MB in the beginning and 326.5MB in the end (delta: 8.2MB). 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,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [415] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [653] - GenericResultAtLocation [Line: 691]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [691] - GenericResultAtLocation [Line: 759]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [759] - GenericResultAtLocation [Line: 810]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [810] - GenericResultAtLocation [Line: 907]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [907] - GenericResultAtLocation [Line: 916]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [916] * 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: 912]: 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: 14.0s, OverallIterations: 13, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3879 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3847 mSDsluCounter, 8729 SdHoareTripleChecker+Invalid, 3.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6903 mSDsCounter, 1366 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7252 IncrementalHoareTripleChecker+Invalid, 8618 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1366 mSolverCounterUnsat, 1826 mSDtfsCounter, 7252 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2144 GetRequests, 1884 SyntacticMatches, 25 SemanticMatches, 235 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2234 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=957occurred in iteration=12, InterpolantAutomatonStates: 164, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 13 MinimizatonAttempts, 344 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2297 NumberOfCodeBlocks, 2297 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3221 ConstructedInterpolants, 0 QuantifiedInterpolants, 7521 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2769 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 23 InterpolantComputations, 8 PerfectInterpolantSequences, 2829/3423 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 705]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0)) || (((((waterLevel <= 1) && (1 == systemActive)) && (splverifierCounter == 0)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1))) || ((((2 == waterLevel) && (1 == systemActive)) && (splverifierCounter == 0)) && (pumpRunning == 1))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - InvariantResult [Line: 822]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 751]: Location Invariant Derived location invariant: 0 RESULT: Ultimate proved your program to be correct! [2025-01-09 04:03:41,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE