./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:17:16,200 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:17:16,274 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:17:16,280 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:17:16,281 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:17:16,310 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:17:16,311 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:17:16,311 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:17:16,312 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:17:16,314 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:17:16,314 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:17:16,315 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:17:16,315 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:17:16,316 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:17:16,316 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:17:16,316 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:17:16,317 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:17:16,317 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:17:16,317 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:17:16,317 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:17:16,318 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:17:16,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:17:16,322 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:17:16,322 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:17:16,322 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:17:16,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:17:16,323 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:17:16,323 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:17:16,323 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:17:16,324 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:17:16,324 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:17:16,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:17:16,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:17:16,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:17:16,325 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:17:16,328 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:17:16,328 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:17:16,329 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:17:16,329 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:17:16,329 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:17:16,329 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:17:16,330 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:17:16,330 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b57a794fa6b429f14911ed2b6a28ecb30bf580e5cb37ae05e7120c2d485c2d18 [2024-11-08 15:17:16,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:17:16,641 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:17:16,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:17:16,647 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:17:16,648 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:17:16,649 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2024-11-08 15:17:18,187 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:17:18,430 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:17:18,431 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c [2024-11-08 15:17:18,444 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a0ff0ac7/e518a554aa544adebac4d423c588b001/FLAG67368a181 [2024-11-08 15:17:18,456 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a0ff0ac7/e518a554aa544adebac4d423c588b001 [2024-11-08 15:17:18,459 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:17:18,461 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:17:18,462 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:17:18,462 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:17:18,470 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:17:18,471 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:17:18" (1/1) ... [2024-11-08 15:17:18,471 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fb7ddd4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:18, skipping insertion in model container [2024-11-08 15:17:18,472 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:17:18" (1/1) ... [2024-11-08 15:17:18,515 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:17:18,862 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2024-11-08 15:17:18,877 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:17:18,894 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:17:18,906 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] [2024-11-08 15:17:18,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [304] [2024-11-08 15:17:18,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [376] [2024-11-08 15:17:18,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [427] [2024-11-08 15:17:18,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [793] [2024-11-08 15:17:18,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] [2024-11-08 15:17:18,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [928] [2024-11-08 15:17:18,909 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [937] [2024-11-08 15:17:18,975 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product60.cil.c[18075,18088] [2024-11-08 15:17:18,978 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:17:19,005 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:17:19,006 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19 WrapperNode [2024-11-08 15:17:19,006 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:17:19,007 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:17:19,007 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:17:19,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:17:19,014 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,031 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,059 INFO L138 Inliner]: procedures = 60, calls = 106, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 238 [2024-11-08 15:17:19,059 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:17:19,060 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:17:19,060 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:17:19,060 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:17:19,069 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,070 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,072 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,107 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:17:19,108 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,108 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,121 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,128 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,132 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,137 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,140 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:17:19,142 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:17:19,142 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:17:19,142 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:17:19,155 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (1/1) ... [2024-11-08 15:17:19,168 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:17:19,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:17:19,209 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:17:19,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:17:19,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:17:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:17:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:17:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:17:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:17:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:17:19,265 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:17:19,265 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:17:19,266 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:17:19,266 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-08 15:17:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-08 15:17:19,267 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:17:19,267 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:17:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:17:19,268 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:17:19,268 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:17:19,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:17:19,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:17:19,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:17:19,365 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:17:19,682 INFO L? ?]: Removed 51 outVars from TransFormulas that were not future-live. [2024-11-08 15:17:19,686 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:17:19,704 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:17:19,705 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:17:19,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:19 BoogieIcfgContainer [2024-11-08 15:17:19,705 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:17:19,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:17:19,708 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:17:19,711 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:17:19,712 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:17:18" (1/3) ... [2024-11-08 15:17:19,712 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b702433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:17:19, skipping insertion in model container [2024-11-08 15:17:19,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:17:19" (2/3) ... [2024-11-08 15:17:19,713 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b702433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:17:19, skipping insertion in model container [2024-11-08 15:17:19,713 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:19" (3/3) ... [2024-11-08 15:17:19,715 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product60.cil.c [2024-11-08 15:17:19,731 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:17:19,731 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:17:19,786 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:17:19,796 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;@9be7da0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:17:19,796 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:17:19,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 104 states, 80 states have (on average 1.3625) internal successors, (109), 89 states have internal predecessors, (109), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-08 15:17:19,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-08 15:17:19,809 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:19,810 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:19,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:19,817 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:19,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1321598299, now seen corresponding path program 1 times [2024-11-08 15:17:19,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:19,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118799178] [2024-11-08 15:17:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:19,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 15:17:20,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,060 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:17:20,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:20,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:20,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118799178] [2024-11-08 15:17:20,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118799178] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:20,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:20,075 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:17:20,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102131010] [2024-11-08 15:17:20,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:20,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:17:20,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:20,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:17:20,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:17:20,109 INFO L87 Difference]: Start difference. First operand has 104 states, 80 states have (on average 1.3625) internal successors, (109), 89 states have internal predecessors, (109), 14 states have call successors, (14), 8 states have call predecessors, (14), 8 states have return successors, (14), 11 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:20,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:20,136 INFO L93 Difference]: Finished difference Result 199 states and 268 transitions. [2024-11-08 15:17:20,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:17:20,139 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-08 15:17:20,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:20,147 INFO L225 Difference]: With dead ends: 199 [2024-11-08 15:17:20,147 INFO L226 Difference]: Without dead ends: 95 [2024-11-08 15:17:20,152 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:17:20,155 INFO L432 NwaCegarLoop]: 131 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:20,156 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:17:20,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-11-08 15:17:20,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 95. [2024-11-08 15:17:20,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95 states, 73 states have (on average 1.3013698630136987) internal successors, (95), 81 states have internal predecessors, (95), 14 states have call successors, (14), 8 states have call predecessors, (14), 7 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-08 15:17:20,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 122 transitions. [2024-11-08 15:17:20,200 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 122 transitions. Word has length 32 [2024-11-08 15:17:20,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:20,200 INFO L471 AbstractCegarLoop]: Abstraction has 95 states and 122 transitions. [2024-11-08 15:17:20,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 12.0) internal successors, (24), 2 states have internal predecessors, (24), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:20,201 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 122 transitions. [2024-11-08 15:17:20,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-08 15:17:20,204 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:20,204 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:20,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:17:20,204 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:20,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:20,205 INFO L85 PathProgramCache]: Analyzing trace with hash 932141827, now seen corresponding path program 1 times [2024-11-08 15:17:20,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:20,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641657668] [2024-11-08 15:17:20,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:20,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-08 15:17:20,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-08 15:17:20,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:20,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:20,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641657668] [2024-11-08 15:17:20,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641657668] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:20,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:20,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:17:20,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771480848] [2024-11-08 15:17:20,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:20,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:17:20,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:20,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:17:20,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:17:20,373 INFO L87 Difference]: Start difference. First operand 95 states and 122 transitions. Second operand has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:20,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:20,397 INFO L93 Difference]: Finished difference Result 150 states and 192 transitions. [2024-11-08 15:17:20,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:17:20,398 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-08 15:17:20,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:20,400 INFO L225 Difference]: With dead ends: 150 [2024-11-08 15:17:20,400 INFO L226 Difference]: Without dead ends: 86 [2024-11-08 15:17:20,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:17:20,402 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 17 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:20,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 196 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:17:20,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2024-11-08 15:17:20,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2024-11-08 15:17:20,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 67 states have (on average 1.3134328358208955) internal successors, (88), 75 states have internal predecessors, (88), 11 states have call successors, (11), 7 states have call predecessors, (11), 7 states have return successors, (11), 8 states have call predecessors, (11), 11 states have call successors, (11) [2024-11-08 15:17:20,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 110 transitions. [2024-11-08 15:17:20,413 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 110 transitions. Word has length 33 [2024-11-08 15:17:20,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:20,413 INFO L471 AbstractCegarLoop]: Abstraction has 86 states and 110 transitions. [2024-11-08 15:17:20,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:20,414 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 110 transitions. [2024-11-08 15:17:20,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-08 15:17:20,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:20,415 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:20,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:17:20,416 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:20,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:20,417 INFO L85 PathProgramCache]: Analyzing trace with hash -509762780, now seen corresponding path program 1 times [2024-11-08 15:17:20,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:20,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376297873] [2024-11-08 15:17:20,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:20,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:20,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:17:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 15:17:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,595 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:20,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:20,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376297873] [2024-11-08 15:17:20,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376297873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:20,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:20,597 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:17:20,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880666136] [2024-11-08 15:17:20,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:20,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:17:20,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:20,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:17:20,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:17:20,599 INFO L87 Difference]: Start difference. First operand 86 states and 110 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-08 15:17:20,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:20,680 INFO L93 Difference]: Finished difference Result 211 states and 274 transitions. [2024-11-08 15:17:20,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:17:20,681 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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 38 [2024-11-08 15:17:20,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:20,684 INFO L225 Difference]: With dead ends: 211 [2024-11-08 15:17:20,684 INFO L226 Difference]: Without dead ends: 133 [2024-11-08 15:17:20,685 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:17:20,689 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 99 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:20,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [99 Valid, 421 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:17:20,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-08 15:17:20,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 130. [2024-11-08 15:17:20,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 100 states have (on average 1.33) internal successors, (133), 111 states have internal predecessors, (133), 17 states have call successors, (17), 12 states have call predecessors, (17), 12 states have return successors, (18), 13 states have call predecessors, (18), 17 states have call successors, (18) [2024-11-08 15:17:20,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 168 transitions. [2024-11-08 15:17:20,709 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 168 transitions. Word has length 38 [2024-11-08 15:17:20,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:20,709 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 168 transitions. [2024-11-08 15:17:20,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 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) [2024-11-08 15:17:20,710 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 168 transitions. [2024-11-08 15:17:20,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-08 15:17:20,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:20,712 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:20,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:17:20,713 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:20,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:20,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1072402805, now seen corresponding path program 1 times [2024-11-08 15:17:20,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:20,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4085478] [2024-11-08 15:17:20,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:20,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:17:20,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-08 15:17:20,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:20,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-08 15:17:20,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:20,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4085478] [2024-11-08 15:17:20,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4085478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:20,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:20,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:17:20,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831971553] [2024-11-08 15:17:20,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:20,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:17:20,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:20,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:17:20,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:17:20,942 INFO L87 Difference]: Start difference. First operand 130 states and 168 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:21,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:21,112 INFO L93 Difference]: Finished difference Result 292 states and 387 transitions. [2024-11-08 15:17:21,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:17:21,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 41 [2024-11-08 15:17:21,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:21,117 INFO L225 Difference]: With dead ends: 292 [2024-11-08 15:17:21,118 INFO L226 Difference]: Without dead ends: 170 [2024-11-08 15:17:21,119 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:17:21,124 INFO L432 NwaCegarLoop]: 107 mSDtfsCounter, 54 mSDsluCounter, 353 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:21,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 460 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:21,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2024-11-08 15:17:21,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 169. [2024-11-08 15:17:21,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 130 states have (on average 1.2692307692307692) internal successors, (165), 141 states have internal predecessors, (165), 21 states have call successors, (21), 17 states have call predecessors, (21), 17 states have return successors, (27), 20 states have call predecessors, (27), 21 states have call successors, (27) [2024-11-08 15:17:21,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 213 transitions. [2024-11-08 15:17:21,156 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 213 transitions. Word has length 41 [2024-11-08 15:17:21,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:21,157 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 213 transitions. [2024-11-08 15:17:21,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 states have internal predecessors, (36), 1 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-08 15:17:21,158 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 213 transitions. [2024-11-08 15:17:21,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:17:21,163 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:21,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:21,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:17:21,164 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:21,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:21,164 INFO L85 PathProgramCache]: Analyzing trace with hash -2130728348, now seen corresponding path program 1 times [2024-11-08 15:17:21,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:21,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514104611] [2024-11-08 15:17:21,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:21,165 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:17:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,270 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:17:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:17:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:21,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:21,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514104611] [2024-11-08 15:17:21,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514104611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:21,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:21,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:17:21,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927679444] [2024-11-08 15:17:21,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:21,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:17:21,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:21,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:17:21,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:17:21,320 INFO L87 Difference]: Start difference. First operand 169 states and 213 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:21,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:21,506 INFO L93 Difference]: Finished difference Result 358 states and 462 transitions. [2024-11-08 15:17:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:17:21,507 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-08 15:17:21,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:21,511 INFO L225 Difference]: With dead ends: 358 [2024-11-08 15:17:21,511 INFO L226 Difference]: Without dead ends: 197 [2024-11-08 15:17:21,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:17:21,516 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 61 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 400 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:21,517 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 400 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:21,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2024-11-08 15:17:21,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 195. [2024-11-08 15:17:21,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 151 states have (on average 1.2582781456953642) internal successors, (190), 162 states have internal predecessors, (190), 23 states have call successors, (23), 17 states have call predecessors, (23), 20 states have return successors, (32), 24 states have call predecessors, (32), 23 states have call successors, (32) [2024-11-08 15:17:21,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 245 transitions. [2024-11-08 15:17:21,551 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 245 transitions. Word has length 56 [2024-11-08 15:17:21,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:21,551 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 245 transitions. [2024-11-08 15:17:21,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:21,552 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 245 transitions. [2024-11-08 15:17:21,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-08 15:17:21,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:21,554 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:21,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:17:21,554 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:21,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:21,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1567243405, now seen corresponding path program 1 times [2024-11-08 15:17:21,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:21,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1422551478] [2024-11-08 15:17:21,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:21,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:21,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 15:17:21,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-08 15:17:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 15:17:21,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:21,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:21,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1422551478] [2024-11-08 15:17:21,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1422551478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:21,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:21,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-08 15:17:21,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565104430] [2024-11-08 15:17:21,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:21,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-08 15:17:21,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:21,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-08 15:17:21,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-08 15:17:21,656 INFO L87 Difference]: Start difference. First operand 195 states and 245 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:21,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:21,815 INFO L93 Difference]: Finished difference Result 386 states and 485 transitions. [2024-11-08 15:17:21,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:17:21,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 59 [2024-11-08 15:17:21,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:21,817 INFO L225 Difference]: With dead ends: 386 [2024-11-08 15:17:21,818 INFO L226 Difference]: Without dead ends: 199 [2024-11-08 15:17:21,819 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:17:21,819 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 98 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 261 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:21,820 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 261 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:21,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-08 15:17:21,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 195. [2024-11-08 15:17:21,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 151 states have (on average 1.2516556291390728) internal successors, (189), 162 states have internal predecessors, (189), 23 states have call successors, (23), 17 states have call predecessors, (23), 20 states have return successors, (30), 24 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-08 15:17:21,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 242 transitions. [2024-11-08 15:17:21,846 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 242 transitions. Word has length 59 [2024-11-08 15:17:21,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:21,848 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 242 transitions. [2024-11-08 15:17:21,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 2 states have call successors, (4), 3 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:21,848 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 242 transitions. [2024-11-08 15:17:21,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:17:21,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:21,850 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:21,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:17:21,850 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:21,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:21,852 INFO L85 PathProgramCache]: Analyzing trace with hash 358800614, now seen corresponding path program 1 times [2024-11-08 15:17:21,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:21,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126507570] [2024-11-08 15:17:21,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:21,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:21,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:17:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:21,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:17:21,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:17:22,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:22,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:22,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126507570] [2024-11-08 15:17:22,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126507570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:22,016 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:22,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:17:22,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499127941] [2024-11-08 15:17:22,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:22,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:17:22,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:22,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:17:22,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:17:22,018 INFO L87 Difference]: Start difference. First operand 195 states and 242 transitions. Second operand has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:22,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:22,198 INFO L93 Difference]: Finished difference Result 386 states and 488 transitions. [2024-11-08 15:17:22,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:17:22,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-08 15:17:22,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:22,201 INFO L225 Difference]: With dead ends: 386 [2024-11-08 15:17:22,203 INFO L226 Difference]: Without dead ends: 199 [2024-11-08 15:17:22,204 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:17:22,205 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 60 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:22,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [64 Valid, 481 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:17:22,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-11-08 15:17:22,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 197. [2024-11-08 15:17:22,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 153 states have (on average 1.2483660130718954) internal successors, (191), 164 states have internal predecessors, (191), 23 states have call successors, (23), 17 states have call predecessors, (23), 20 states have return successors, (30), 24 states have call predecessors, (30), 23 states have call successors, (30) [2024-11-08 15:17:22,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 244 transitions. [2024-11-08 15:17:22,224 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 244 transitions. Word has length 56 [2024-11-08 15:17:22,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:22,225 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 244 transitions. [2024-11-08 15:17:22,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 6 states have internal predecessors, (47), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:22,225 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 244 transitions. [2024-11-08 15:17:22,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-08 15:17:22,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:22,226 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:22,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:17:22,227 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:22,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:22,227 INFO L85 PathProgramCache]: Analyzing trace with hash 499349224, now seen corresponding path program 1 times [2024-11-08 15:17:22,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:22,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302761506] [2024-11-08 15:17:22,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:22,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:22,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-08 15:17:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-08 15:17:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-08 15:17:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,337 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:22,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:22,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302761506] [2024-11-08 15:17:22,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302761506] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:22,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:22,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:17:22,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757281157] [2024-11-08 15:17:22,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:22,339 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:17:22,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:22,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:17:22,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:17:22,340 INFO L87 Difference]: Start difference. First operand 197 states and 244 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:22,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:22,574 INFO L93 Difference]: Finished difference Result 599 states and 766 transitions. [2024-11-08 15:17:22,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:17:22,575 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 56 [2024-11-08 15:17:22,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:22,578 INFO L225 Difference]: With dead ends: 599 [2024-11-08 15:17:22,578 INFO L226 Difference]: Without dead ends: 410 [2024-11-08 15:17:22,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:17:22,579 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 232 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:22,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 332 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:17:22,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-08 15:17:22,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 408. [2024-11-08 15:17:22,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 313 states have (on average 1.220447284345048) internal successors, (382), 332 states have internal predecessors, (382), 52 states have call successors, (52), 42 states have call predecessors, (52), 42 states have return successors, (72), 51 states have call predecessors, (72), 52 states have call successors, (72) [2024-11-08 15:17:22,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 506 transitions. [2024-11-08 15:17:22,621 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 506 transitions. Word has length 56 [2024-11-08 15:17:22,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:22,621 INFO L471 AbstractCegarLoop]: Abstraction has 408 states and 506 transitions. [2024-11-08 15:17:22,622 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 15:17:22,622 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 506 transitions. [2024-11-08 15:17:22,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-08 15:17:22,622 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:22,623 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:22,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:17:22,623 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:22,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:22,626 INFO L85 PathProgramCache]: Analyzing trace with hash 741082050, now seen corresponding path program 1 times [2024-11-08 15:17:22,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:22,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747790909] [2024-11-08 15:17:22,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:22,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:22,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:17:22,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-08 15:17:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,835 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 15:17:22,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 15:17:22,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:22,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:17:22,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:22,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747790909] [2024-11-08 15:17:22,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747790909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:17:22,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:17:22,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-08 15:17:22,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218374552] [2024-11-08 15:17:22,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:17:22,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-08 15:17:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:22,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-08 15:17:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-11-08 15:17:22,867 INFO L87 Difference]: Start difference. First operand 408 states and 506 transitions. Second operand has 10 states, 10 states have (on average 4.9) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:17:23,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:23,557 INFO L93 Difference]: Finished difference Result 1032 states and 1333 transitions. [2024-11-08 15:17:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-08 15:17:23,558 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 60 [2024-11-08 15:17:23,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:23,562 INFO L225 Difference]: With dead ends: 1032 [2024-11-08 15:17:23,563 INFO L226 Difference]: Without dead ends: 720 [2024-11-08 15:17:23,565 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=532, Unknown=0, NotChecked=0, Total=702 [2024-11-08 15:17:23,566 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 565 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 164 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 573 SdHoareTripleChecker+Valid, 654 SdHoareTripleChecker+Invalid, 695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 164 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:23,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [573 Valid, 654 Invalid, 695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [164 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:17:23,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2024-11-08 15:17:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 604. [2024-11-08 15:17:23,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 604 states, 464 states have (on average 1.2112068965517242) internal successors, (562), 495 states have internal predecessors, (562), 75 states have call successors, (75), 57 states have call predecessors, (75), 64 states have return successors, (108), 73 states have call predecessors, (108), 75 states have call successors, (108) [2024-11-08 15:17:23,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 604 states to 604 states and 745 transitions. [2024-11-08 15:17:23,648 INFO L78 Accepts]: Start accepts. Automaton has 604 states and 745 transitions. Word has length 60 [2024-11-08 15:17:23,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:23,649 INFO L471 AbstractCegarLoop]: Abstraction has 604 states and 745 transitions. [2024-11-08 15:17:23,649 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.9) internal successors, (49), 8 states have internal predecessors, (49), 3 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-11-08 15:17:23,649 INFO L276 IsEmpty]: Start isEmpty. Operand 604 states and 745 transitions. [2024-11-08 15:17:23,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-08 15:17:23,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:17:23,651 INFO L215 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] [2024-11-08 15:17:23,651 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-08 15:17:23,651 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:17:23,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:17:23,652 INFO L85 PathProgramCache]: Analyzing trace with hash -1062453768, now seen corresponding path program 1 times [2024-11-08 15:17:23,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:17:23,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644951654] [2024-11-08 15:17:23,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:23,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:17:23,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:17:23,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-08 15:17:23,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,845 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:17:23,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-08 15:17:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-08 15:17:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:17:23,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,883 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:17:23,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 15:17:23,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,888 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:17:23,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:17:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644951654] [2024-11-08 15:17:23,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644951654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:17:23,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188905358] [2024-11-08 15:17:23,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:17:23,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:17:23,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:17:23,891 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:17:23,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:17:23,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:17:23,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 15:17:23,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:17:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 25 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:17:24,180 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 15:17:24,389 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 19 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 15:17:24,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188905358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 15:17:24,390 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 15:17:24,390 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 6, 6] total 16 [2024-11-08 15:17:24,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [280600813] [2024-11-08 15:17:24,391 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 15:17:24,391 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-08 15:17:24,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:17:24,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-08 15:17:24,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2024-11-08 15:17:24,392 INFO L87 Difference]: Start difference. First operand 604 states and 745 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:17:25,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:17:25,565 INFO L93 Difference]: Finished difference Result 1310 states and 1663 transitions. [2024-11-08 15:17:25,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-11-08 15:17:25,566 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) Word has length 102 [2024-11-08 15:17:25,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:17:25,567 INFO L225 Difference]: With dead ends: 1310 [2024-11-08 15:17:25,568 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:17:25,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 220 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=277, Invalid=1205, Unknown=0, NotChecked=0, Total=1482 [2024-11-08 15:17:25,572 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 301 mSDsluCounter, 1528 mSDsCounter, 0 mSdLazyCounter, 1307 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 1707 SdHoareTripleChecker+Invalid, 1399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 1307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-08 15:17:25,572 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 1707 Invalid, 1399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 1307 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-08 15:17:25,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:17:25,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:17:25,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:17:25,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:17:25,575 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-11-08 15:17:25,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:17:25,575 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:17:25,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 7.9375) internal successors, (127), 11 states have internal predecessors, (127), 5 states have call successors, (20), 7 states have call predecessors, (20), 6 states have return successors, (16), 7 states have call predecessors, (16), 5 states have call successors, (16) [2024-11-08 15:17:25,575 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:17:25,576 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:17:25,579 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:17:25,598 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:17:25,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 15:17:25,782 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:17:25,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:17:29,715 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:17:29,735 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse0 .cse1) (and (= 2 ~waterLevel~0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1))) [2024-11-08 15:17:29,753 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= 1 |old(~pumpRunning~0)|)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= |old(~waterLevel~0)| 2))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (<= 1 |old(~switchedOnBeforeTS~0)|) .cse2 .cse0 .cse1) (and (= |old(~pumpRunning~0)| 0) .cse2))) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-08 15:17:29,766 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|) .cse1) (and (= |old(~pumpRunning~0)| 0) .cse0 .cse1)))) Eliminated clause: (let ((.cse0 (<= ~waterLevel~0 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and (<= 1 ~pumpRunning~0) .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-11-08 15:17:29,778 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1 (= |old(~waterLevel~0)| 2)) (and (= ~pumpRunning~0 0) .cse2) (and .cse0 (<= 1 ~switchedOnBeforeTS~0) .cse2 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse2 (<= 1 ~switchedOnBeforeTS~0) .cse1) (and (= ~pumpRunning~0 0) .cse2))) [2024-11-08 15:17:29,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:17:29 BoogieIcfgContainer [2024-11-08 15:17:29,797 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:17:29,798 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:17:29,798 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:17:29,798 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:17:29,799 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:17:19" (3/4) ... [2024-11-08 15:17:29,801 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:17:29,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 15:17:29,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:17:29,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:17:29,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:17:29,806 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:17:29,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:17:29,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:17:29,807 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-08 15:17:29,814 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-08 15:17:29,815 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:17:29,815 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:17:29,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:17:29,816 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:17:29,940 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:17:29,940 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:17:29,941 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:17:29,941 INFO L158 Benchmark]: Toolchain (without parser) took 11481.01ms. Allocated memory was 184.5MB in the beginning and 272.6MB in the end (delta: 88.1MB). Free memory was 130.7MB in the beginning and 229.8MB in the end (delta: -99.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:17:29,942 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:17:29,942 INFO L158 Benchmark]: CACSL2BoogieTranslator took 544.36ms. Allocated memory is still 184.5MB. Free memory was 130.7MB in the beginning and 108.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,943 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.93ms. Allocated memory is still 184.5MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,943 INFO L158 Benchmark]: Boogie Preprocessor took 81.33ms. Allocated memory is still 184.5MB. Free memory was 106.0MB in the beginning and 154.0MB in the end (delta: -48.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,943 INFO L158 Benchmark]: RCFGBuilder took 563.79ms. Allocated memory is still 184.5MB. Free memory was 154.0MB in the beginning and 134.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,944 INFO L158 Benchmark]: TraceAbstraction took 10089.95ms. Allocated memory was 184.5MB in the beginning and 272.6MB in the end (delta: 88.1MB). Free memory was 133.2MB in the beginning and 239.3MB in the end (delta: -106.1MB). Peak memory consumption was 142.1MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,944 INFO L158 Benchmark]: Witness Printer took 142.74ms. Allocated memory is still 272.6MB. Free memory was 238.2MB in the beginning and 229.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:17:29,945 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 125.8MB. Free memory was 99.7MB in the beginning and 99.6MB in the end (delta: 16.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 544.36ms. Allocated memory is still 184.5MB. Free memory was 130.7MB in the beginning and 108.6MB in the end (delta: 22.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.93ms. Allocated memory is still 184.5MB. Free memory was 108.6MB in the beginning and 106.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 81.33ms. Allocated memory is still 184.5MB. Free memory was 106.0MB in the beginning and 154.0MB in the end (delta: -48.0MB). Peak memory consumption was 7.0MB. Max. memory is 16.1GB. * RCFGBuilder took 563.79ms. Allocated memory is still 184.5MB. Free memory was 154.0MB in the beginning and 134.3MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 10089.95ms. Allocated memory was 184.5MB in the beginning and 272.6MB in the end (delta: 88.1MB). Free memory was 133.2MB in the beginning and 239.3MB in the end (delta: -106.1MB). Peak memory consumption was 142.1MB. Max. memory is 16.1GB. * Witness Printer took 142.74ms. Allocated memory is still 272.6MB. Free memory was 238.2MB in the beginning and 229.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [49] - GenericResultAtLocation [Line: 304]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [304] - GenericResultAtLocation [Line: 376]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [376] - GenericResultAtLocation [Line: 427]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [427] - GenericResultAtLocation [Line: 793]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [793] - GenericResultAtLocation [Line: 893]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [893] - GenericResultAtLocation [Line: 928]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [928] - GenericResultAtLocation [Line: 937]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [937] * 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: 933]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 9 procedures, 104 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1529 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1487 mSDsluCounter, 5043 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3838 mSDsCounter, 377 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2400 IncrementalHoareTripleChecker+Invalid, 2777 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 377 mSolverCounterUnsat, 1205 mSDtfsCounter, 2400 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 391 GetRequests, 290 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=604occurred in iteration=9, InterpolantAutomatonStates: 94, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 130 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 635 NumberOfCodeBlocks, 635 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 725 ConstructedInterpolants, 0 QuantifiedInterpolants, 1395 SizeOfPredicates, 2 NumberOfNonLiveVariables, 340 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 103/129 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 317]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 805]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 318]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) || (((((1 <= pumpRunning) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (splverifierCounter == 0)) && (0 != systemActive))) - ProcedureContractResult [Line: 179]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((2 == waterLevel) && (1 <= \old(pumpRunning))) && (0 != systemActive)))) && ((((((systemActive == \old(systemActive)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 94]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 964]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel)))) - ProcedureContractResult [Line: 795]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 67]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: ((((((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((((pumpRunning == 0) && (\old(pumpRunning) == 0)) && (\old(waterLevel) == waterLevel)) || (0 != systemActive))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((1 <= \old(pumpRunning)) && (\old(waterLevel) == 2)) || (((1 <= \old(switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)))) && ((((systemActive == \old(systemActive)) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 102]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive))) Ensures: ((((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && (((((waterLevel <= 2) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))) && (0 != systemActive)) || (((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)))) && ((((((systemActive == \old(systemActive)) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 952]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((((1 <= pumpRunning) && (0 != systemActive)) && (\old(waterLevel) == 2)) || ((pumpRunning == 0) && (\old(waterLevel) <= 2))) || ((((1 <= pumpRunning) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) && (0 != systemActive))) && ((2 == waterLevel) || (\old(waterLevel) != 2))) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= 2)) && ((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (methaneLevelCritical == \old(methaneLevelCritical)))) - ProcedureContractResult [Line: 198]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((((1 <= pumpRunning) && (2 == waterLevel)) && (0 != systemActive)) || ((((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) || ((pumpRunning == 0) && (waterLevel <= 2))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) || ((pumpRunning == 0) && (waterLevel <= 2))) || (((1 <= pumpRunning) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) && (pumpRunning == \result)) && ((\result == 0) || (0 != systemActive))) && (((((((pumpRunning == \old(pumpRunning)) && (systemActive == \old(systemActive))) && (switchedOnBeforeTS == \old(switchedOnBeforeTS))) && (head == \old(head))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:17:29,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/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