./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_product64.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 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:22:20,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:22:20,219 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:22:20,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:22:20,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:22:20,255 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:22:20,258 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:22:20,258 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:22:20,259 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:22:20,259 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:22:20,260 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:22:20,260 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:22:20,261 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:22:20,263 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:22:20,263 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:22:20,264 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:22:20,264 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:22:20,264 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:22:20,265 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:22:20,265 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:22:20,265 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:22:20,269 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:22:20,269 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:22:20,269 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:22:20,270 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:22:20,270 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:22:20,270 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:22:20,270 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:22:20,271 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:22:20,271 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:22:20,271 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:22:20,271 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:22:20,271 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:22:20,272 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:22:20,272 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:22:20,272 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:22:20,272 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:22:20,273 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:22:20,273 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:22:20,273 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:22:20,273 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:22:20,275 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:22:20,275 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2024-11-18 14:22:20,539 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:22:20,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:22:20,568 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:22:20,569 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:22:20,569 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:22:20,570 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-18 14:22:22,016 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:22:22,246 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:22:22,247 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-11-18 14:22:22,265 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9aeeb324/f78fe443d17a4864b8f56f7735e5db0d/FLAG2c89c596a [2024-11-18 14:22:22,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9aeeb324/f78fe443d17a4864b8f56f7735e5db0d [2024-11-18 14:22:22,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:22:22,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:22:22,284 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:22,284 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:22:22,288 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:22:22,289 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,289 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@500c5509 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22, skipping insertion in model container [2024-11-18 14:22:22,289 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,342 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:22:22,599 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_product64.cil.c[9626,9639] [2024-11-18 14:22:22,675 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:22,684 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:22:22,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-11-18 14:22:22,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] [2024-11-18 14:22:22,696 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] [2024-11-18 14:22:22,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] [2024-11-18 14:22:22,699 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] [2024-11-18 14:22:22,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] [2024-11-18 14:22:22,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] [2024-11-18 14:22:22,700 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] [2024-11-18 14:22:22,727 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_product64.cil.c[9626,9639] [2024-11-18 14:22:22,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:22:22,781 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:22:22,781 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22 WrapperNode [2024-11-18 14:22:22,781 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:22:22,782 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:22,782 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:22:22,782 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:22:22,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,800 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,831 INFO L138 Inliner]: procedures = 61, calls = 110, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 249 [2024-11-18 14:22:22,832 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:22:22,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:22:22,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:22:22,833 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:22:22,842 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,843 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,845 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,861 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]. [2024-11-18 14:22:22,861 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,861 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,866 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,871 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,873 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,874 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,876 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:22:22,877 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:22:22,878 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:22:22,878 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:22:22,878 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (1/1) ... [2024-11-18 14:22:22,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:22:22,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:22,922 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) [2024-11-18 14:22:22,927 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 [2024-11-18 14:22:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:22:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-18 14:22:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-18 14:22:22,984 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 14:22:22,984 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 14:22:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 14:22:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 14:22:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:22,985 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:22:22,985 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-18 14:22:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-18 14:22:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:22:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:22:22,986 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-11-18 14:22:22,986 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-11-18 14:22:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-18 14:22:22,987 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-18 14:22:22,987 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-18 14:22:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-18 14:22:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:22:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-18 14:22:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-18 14:22:22,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:22:22,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:22:23,086 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:22:23,090 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:22:23,415 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-11-18 14:22:23,415 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:22:23,432 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:22:23,433 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-18 14:22:23,433 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:23 BoogieIcfgContainer [2024-11-18 14:22:23,433 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:22:23,435 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:22:23,435 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:22:23,438 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:22:23,439 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:22:22" (1/3) ... [2024-11-18 14:22:23,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2cf84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:23, skipping insertion in model container [2024-11-18 14:22:23,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:22:22" (2/3) ... [2024-11-18 14:22:23,440 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d2cf84b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:22:23, skipping insertion in model container [2024-11-18 14:22:23,440 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:23" (3/3) ... [2024-11-18 14:22:23,441 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2024-11-18 14:22:23,458 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:22:23,458 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:22:23,528 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:22:23,535 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;@2c1e0360, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:22:23,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:22:23,540 INFO L276 IsEmpty]: Start isEmpty. Operand has 118 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 98 states have internal predecessors, (118), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-18 14:22:23,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-18 14:22:23,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:23,553 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] [2024-11-18 14:22:23,554 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:23,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:23,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1423497268, now seen corresponding path program 1 times [2024-11-18 14:22:23,567 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:23,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196588254] [2024-11-18 14:22:23,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:23,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:23,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:23,821 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:23,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:23,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196588254] [2024-11-18 14:22:23,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196588254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:23,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:23,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:22:23,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781506488] [2024-11-18 14:22:23,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:23,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:22:23,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:23,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:22:23,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:22:23,848 INFO L87 Difference]: Start difference. First operand has 118 states, 87 states have (on average 1.3563218390804597) internal successors, (118), 98 states have internal predecessors, (118), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) 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) [2024-11-18 14:22:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:23,878 INFO L93 Difference]: Finished difference Result 227 states and 306 transitions. [2024-11-18 14:22:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:22:23,880 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 [2024-11-18 14:22:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:23,887 INFO L225 Difference]: With dead ends: 227 [2024-11-18 14:22:23,888 INFO L226 Difference]: Without dead ends: 109 [2024-11-18 14:22:23,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:22:23,894 INFO L432 NwaCegarLoop]: 150 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, 150 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 [2024-11-18 14:22:23,895 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:23,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2024-11-18 14:22:23,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 109. [2024-11-18 14:22:23,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 80 states have (on average 1.3) internal successors, (104), 90 states have internal predecessors, (104), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-18 14:22:23,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 141 transitions. [2024-11-18 14:22:23,936 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 141 transitions. Word has length 32 [2024-11-18 14:22:23,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:23,937 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 141 transitions. [2024-11-18 14:22:23,937 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) [2024-11-18 14:22:23,937 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 141 transitions. [2024-11-18 14:22:23,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-18 14:22:23,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:23,943 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] [2024-11-18 14:22:23,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:22:23,944 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:23,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:23,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1062885571, now seen corresponding path program 1 times [2024-11-18 14:22:23,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:23,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1114219908] [2024-11-18 14:22:23,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:23,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:23,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:24,077 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:24,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:24,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1114219908] [2024-11-18 14:22:24,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1114219908] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:24,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:24,078 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:24,078 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6502971] [2024-11-18 14:22:24,078 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:24,079 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:24,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:24,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:24,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:24,081 INFO L87 Difference]: Start difference. First operand 109 states and 141 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) [2024-11-18 14:22:24,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:24,114 INFO L93 Difference]: Finished difference Result 178 states and 230 transitions. [2024-11-18 14:22:24,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:24,116 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 [2024-11-18 14:22:24,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:24,117 INFO L225 Difference]: With dead ends: 178 [2024-11-18 14:22:24,118 INFO L226 Difference]: Without dead ends: 100 [2024-11-18 14:22:24,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:24,122 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 17 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 234 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 [2024-11-18 14:22:24,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 234 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:24,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-18 14:22:24,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2024-11-18 14:22:24,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 74 states have (on average 1.3108108108108107) internal successors, (97), 84 states have internal predecessors, (97), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-18 14:22:24,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 129 transitions. [2024-11-18 14:22:24,146 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 129 transitions. Word has length 33 [2024-11-18 14:22:24,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:24,147 INFO L471 AbstractCegarLoop]: Abstraction has 100 states and 129 transitions. [2024-11-18 14:22:24,147 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) [2024-11-18 14:22:24,147 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 129 transitions. [2024-11-18 14:22:24,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-18 14:22:24,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:24,152 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] [2024-11-18 14:22:24,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:22:24,153 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:24,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:24,154 INFO L85 PathProgramCache]: Analyzing trace with hash 214115468, now seen corresponding path program 1 times [2024-11-18 14:22:24,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:24,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091453896] [2024-11-18 14:22:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:24,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:24,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:24,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:24,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091453896] [2024-11-18 14:22:24,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091453896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:24,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:24,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:22:24,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280841246] [2024-11-18 14:22:24,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:24,337 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:22:24,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:24,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:22:24,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:24,339 INFO L87 Difference]: Start difference. First operand 100 states and 129 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) [2024-11-18 14:22:24,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:24,425 INFO L93 Difference]: Finished difference Result 239 states and 312 transitions. [2024-11-18 14:22:24,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:22:24,426 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 [2024-11-18 14:22:24,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:24,430 INFO L225 Difference]: With dead ends: 239 [2024-11-18 14:22:24,431 INFO L226 Difference]: Without dead ends: 147 [2024-11-18 14:22:24,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-18 14:22:24,434 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 118 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 478 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 [2024-11-18 14:22:24,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 478 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:24,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2024-11-18 14:22:24,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 144. [2024-11-18 14:22:24,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 107 states have (on average 1.3271028037383177) internal successors, (142), 120 states have internal predecessors, (142), 22 states have call successors, (22), 14 states have call predecessors, (22), 14 states have return successors, (23), 16 states have call predecessors, (23), 22 states have call successors, (23) [2024-11-18 14:22:24,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 187 transitions. [2024-11-18 14:22:24,456 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 187 transitions. Word has length 38 [2024-11-18 14:22:24,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:24,456 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 187 transitions. [2024-11-18 14:22:24,457 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) [2024-11-18 14:22:24,457 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 187 transitions. [2024-11-18 14:22:24,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-18 14:22:24,458 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:24,459 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] [2024-11-18 14:22:24,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:22:24,459 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:24,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:24,460 INFO L85 PathProgramCache]: Analyzing trace with hash 384205224, now seen corresponding path program 1 times [2024-11-18 14:22:24,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:24,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950950236] [2024-11-18 14:22:24,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:24,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:24,640 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-18 14:22:24,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:24,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950950236] [2024-11-18 14:22:24,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950950236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:24,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:24,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 14:22:24,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079734038] [2024-11-18 14:22:24,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:24,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 14:22:24,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:24,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 14:22:24,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 14:22:24,643 INFO L87 Difference]: Start difference. First operand 144 states and 187 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) [2024-11-18 14:22:24,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:24,908 INFO L93 Difference]: Finished difference Result 328 states and 436 transitions. [2024-11-18 14:22:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 14:22:24,909 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 [2024-11-18 14:22:24,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:24,911 INFO L225 Difference]: With dead ends: 328 [2024-11-18 14:22:24,911 INFO L226 Difference]: Without dead ends: 192 [2024-11-18 14:22:24,913 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-18 14:22:24,914 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 65 mSDsluCounter, 414 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:24,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 539 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:22:24,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2024-11-18 14:22:24,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2024-11-18 14:22:24,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 143 states have (on average 1.2587412587412588) internal successors, (180), 155 states have internal predecessors, (180), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (34), 24 states have call predecessors, (34), 26 states have call successors, (34) [2024-11-18 14:22:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 240 transitions. [2024-11-18 14:22:24,937 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 240 transitions. Word has length 41 [2024-11-18 14:22:24,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:24,938 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 240 transitions. [2024-11-18 14:22:24,938 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) [2024-11-18 14:22:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 240 transitions. [2024-11-18 14:22:24,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-18 14:22:24,940 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:24,941 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:24,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:22:24,941 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:24,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:24,942 INFO L85 PathProgramCache]: Analyzing trace with hash -602736799, now seen corresponding path program 1 times [2024-11-18 14:22:24,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:24,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574696202] [2024-11-18 14:22:24,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:24,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:25,019 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:25,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:25,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574696202] [2024-11-18 14:22:25,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574696202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:25,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:25,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:22:25,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059884460] [2024-11-18 14:22:25,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:25,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:22:25,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:22:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:25,025 INFO L87 Difference]: Start difference. First operand 191 states and 240 transitions. Second operand has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:22:25,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:25,062 INFO L93 Difference]: Finished difference Result 376 states and 474 transitions. [2024-11-18 14:22:25,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:22:25,062 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 68 [2024-11-18 14:22:25,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:25,065 INFO L225 Difference]: With dead ends: 376 [2024-11-18 14:22:25,065 INFO L226 Difference]: Without dead ends: 193 [2024-11-18 14:22:25,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:22:25,067 INFO L432 NwaCegarLoop]: 165 mSDtfsCounter, 38 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:25,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 288 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-18 14:22:25,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 191. [2024-11-18 14:22:25,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 143 states have (on average 1.2517482517482517) internal successors, (179), 155 states have internal predecessors, (179), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-18 14:22:25,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 237 transitions. [2024-11-18 14:22:25,101 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 237 transitions. Word has length 68 [2024-11-18 14:22:25,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:25,104 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 237 transitions. [2024-11-18 14:22:25,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.333333333333332) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-18 14:22:25,104 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 237 transitions. [2024-11-18 14:22:25,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 14:22:25,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:25,106 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:25,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:22:25,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:25,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:25,107 INFO L85 PathProgramCache]: Analyzing trace with hash -578050563, now seen corresponding path program 1 times [2024-11-18 14:22:25,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:25,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375663780] [2024-11-18 14:22:25,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:25,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:25,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375663780] [2024-11-18 14:22:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375663780] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:22:25,220 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317004618] [2024-11-18 14:22:25,220 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:25,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:22:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:22:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:25,221 INFO L87 Difference]: Start difference. First operand 191 states and 237 transitions. Second operand has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:22:25,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:25,255 INFO L93 Difference]: Finished difference Result 377 states and 482 transitions. [2024-11-18 14:22:25,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:22:25,259 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-11-18 14:22:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:25,261 INFO L225 Difference]: With dead ends: 377 [2024-11-18 14:22:25,263 INFO L226 Difference]: Without dead ends: 194 [2024-11-18 14:22:25,264 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:22:25,265 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 0 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:25,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:25,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2024-11-18 14:22:25,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 194. [2024-11-18 14:22:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 146 states have (on average 1.2465753424657535) internal successors, (182), 158 states have internal predecessors, (182), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-18 14:22:25,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 240 transitions. [2024-11-18 14:22:25,294 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 240 transitions. Word has length 65 [2024-11-18 14:22:25,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:25,295 INFO L471 AbstractCegarLoop]: Abstraction has 194 states and 240 transitions. [2024-11-18 14:22:25,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.4) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:22:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 240 transitions. [2024-11-18 14:22:25,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 14:22:25,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:25,298 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:25,298 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:22:25,298 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:25,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:25,299 INFO L85 PathProgramCache]: Analyzing trace with hash 808152831, now seen corresponding path program 1 times [2024-11-18 14:22:25,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:25,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415320671] [2024-11-18 14:22:25,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:25,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:25,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:25,380 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:25,381 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:25,381 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415320671] [2024-11-18 14:22:25,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415320671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:25,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:25,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:25,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887343025] [2024-11-18 14:22:25,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:25,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:25,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:25,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:25,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:25,383 INFO L87 Difference]: Start difference. First operand 194 states and 240 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:22:25,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:25,414 INFO L93 Difference]: Finished difference Result 382 states and 487 transitions. [2024-11-18 14:22:25,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:25,415 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 65 [2024-11-18 14:22:25,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:25,417 INFO L225 Difference]: With dead ends: 382 [2024-11-18 14:22:25,417 INFO L226 Difference]: Without dead ends: 196 [2024-11-18 14:22:25,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:25,420 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:25,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 375 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:22:25,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-18 14:22:25,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-18 14:22:25,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 148 states have (on average 1.2432432432432432) internal successors, (184), 160 states have internal predecessors, (184), 26 states have call successors, (26), 21 states have call predecessors, (26), 21 states have return successors, (32), 24 states have call predecessors, (32), 26 states have call successors, (32) [2024-11-18 14:22:25,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2024-11-18 14:22:25,440 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 65 [2024-11-18 14:22:25,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:25,441 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2024-11-18 14:22:25,441 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-18 14:22:25,441 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2024-11-18 14:22:25,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-18 14:22:25,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:25,443 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:25,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:22:25,443 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:25,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:25,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1509752705, now seen corresponding path program 1 times [2024-11-18 14:22:25,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:25,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203295590] [2024-11-18 14:22:25,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:25,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:25,527 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:25,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:25,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203295590] [2024-11-18 14:22:25,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203295590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:25,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:25,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 14:22:25,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086928287] [2024-11-18 14:22:25,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:25,530 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 14:22:25,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:25,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 14:22:25,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:25,531 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-18 14:22:25,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:25,666 INFO L93 Difference]: Finished difference Result 650 states and 829 transitions. [2024-11-18 14:22:25,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 14:22:25,669 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 65 [2024-11-18 14:22:25,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:25,672 INFO L225 Difference]: With dead ends: 650 [2024-11-18 14:22:25,672 INFO L226 Difference]: Without dead ends: 462 [2024-11-18 14:22:25,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 14:22:25,674 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 159 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 421 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:25,676 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 421 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 78 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:22:25,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 462 states. [2024-11-18 14:22:25,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 462 to 453. [2024-11-18 14:22:25,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 341 states have (on average 1.2258064516129032) internal successors, (418), 364 states have internal predecessors, (418), 61 states have call successors, (61), 49 states have call predecessors, (61), 50 states have return successors, (87), 58 states have call predecessors, (87), 61 states have call successors, (87) [2024-11-18 14:22:25,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 566 transitions. [2024-11-18 14:22:25,719 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 566 transitions. Word has length 65 [2024-11-18 14:22:25,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:25,719 INFO L471 AbstractCegarLoop]: Abstraction has 453 states and 566 transitions. [2024-11-18 14:22:25,723 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 4 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-11-18 14:22:25,723 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 566 transitions. [2024-11-18 14:22:25,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-18 14:22:25,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:25,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:25,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:22:25,724 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:25,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:25,725 INFO L85 PathProgramCache]: Analyzing trace with hash 920584039, now seen corresponding path program 1 times [2024-11-18 14:22:25,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:25,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681694455] [2024-11-18 14:22:25,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:25,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:25,940 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-18 14:22:25,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:25,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681694455] [2024-11-18 14:22:25,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681694455] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:22:25,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:22:25,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:22:25,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30419538] [2024-11-18 14:22:25,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:22:25,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:22:25,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:25,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:22:25,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:22:25,945 INFO L87 Difference]: Start difference. First operand 453 states and 566 transitions. Second operand has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-18 14:22:26,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:26,521 INFO L93 Difference]: Finished difference Result 1284 states and 1652 transitions. [2024-11-18 14:22:26,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 14:22:26,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) Word has length 69 [2024-11-18 14:22:26,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:26,527 INFO L225 Difference]: With dead ends: 1284 [2024-11-18 14:22:26,527 INFO L226 Difference]: Without dead ends: 932 [2024-11-18 14:22:26,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2024-11-18 14:22:26,529 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 334 mSDsluCounter, 539 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:26,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 694 Invalid, 519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 14:22:26,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 932 states. [2024-11-18 14:22:26,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 932 to 836. [2024-11-18 14:22:26,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 836 states, 626 states have (on average 1.2108626198083068) internal successors, (758), 670 states have internal predecessors, (758), 110 states have call successors, (110), 85 states have call predecessors, (110), 99 states have return successors, (165), 110 states have call predecessors, (165), 110 states have call successors, (165) [2024-11-18 14:22:26,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 836 states to 836 states and 1033 transitions. [2024-11-18 14:22:26,603 INFO L78 Accepts]: Start accepts. Automaton has 836 states and 1033 transitions. Word has length 69 [2024-11-18 14:22:26,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:26,604 INFO L471 AbstractCegarLoop]: Abstraction has 836 states and 1033 transitions. [2024-11-18 14:22:26,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.75) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (7), 3 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-18 14:22:26,604 INFO L276 IsEmpty]: Start isEmpty. Operand 836 states and 1033 transitions. [2024-11-18 14:22:26,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-18 14:22:26,606 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:26,606 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:26,607 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:22:26,607 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:26,607 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:26,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1227003405, now seen corresponding path program 1 times [2024-11-18 14:22:26,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:26,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066771010] [2024-11-18 14:22:26,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:26,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:26,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:26,809 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:22:26,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066771010] [2024-11-18 14:22:26,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066771010] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:26,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1611446358] [2024-11-18 14:22:26,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:26,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:26,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:26,812 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) [2024-11-18 14:22:26,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 14:22:26,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:26,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-18 14:22:26,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:27,182 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 31 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:22:27,183 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:27,464 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 19 proven. 10 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 14:22:27,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1611446358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:27,464 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:27,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6, 6] total 14 [2024-11-18 14:22:27,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [423691821] [2024-11-18 14:22:27,465 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:27,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 14:22:27,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:27,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 14:22:27,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2024-11-18 14:22:27,467 INFO L87 Difference]: Start difference. First operand 836 states and 1033 transitions. Second operand has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-18 14:22:28,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:28,017 INFO L93 Difference]: Finished difference Result 1905 states and 2420 transitions. [2024-11-18 14:22:28,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-18 14:22:28,018 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) Word has length 123 [2024-11-18 14:22:28,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:28,026 INFO L225 Difference]: With dead ends: 1905 [2024-11-18 14:22:28,027 INFO L226 Difference]: Without dead ends: 1166 [2024-11-18 14:22:28,030 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 241 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=606, Unknown=0, NotChecked=0, Total=756 [2024-11-18 14:22:28,031 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 241 mSDsluCounter, 1517 mSDsCounter, 0 mSdLazyCounter, 324 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 1778 SdHoareTripleChecker+Invalid, 380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:28,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 1778 Invalid, 380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 324 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 14:22:28,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1166 states. [2024-11-18 14:22:28,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1166 to 1022. [2024-11-18 14:22:28,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1022 states, 756 states have (on average 1.1957671957671958) internal successors, (904), 817 states have internal predecessors, (904), 137 states have call successors, (137), 115 states have call predecessors, (137), 128 states have return successors, (183), 132 states have call predecessors, (183), 137 states have call successors, (183) [2024-11-18 14:22:28,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1022 states to 1022 states and 1224 transitions. [2024-11-18 14:22:28,113 INFO L78 Accepts]: Start accepts. Automaton has 1022 states and 1224 transitions. Word has length 123 [2024-11-18 14:22:28,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:28,114 INFO L471 AbstractCegarLoop]: Abstraction has 1022 states and 1224 transitions. [2024-11-18 14:22:28,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 10.857142857142858) internal successors, (152), 12 states have internal predecessors, (152), 5 states have call successors, (24), 4 states have call predecessors, (24), 7 states have return successors, (25), 8 states have call predecessors, (25), 5 states have call successors, (25) [2024-11-18 14:22:28,114 INFO L276 IsEmpty]: Start isEmpty. Operand 1022 states and 1224 transitions. [2024-11-18 14:22:28,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-18 14:22:28,119 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:28,119 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:22:28,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 14:22:28,320 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 [2024-11-18 14:22:28,320 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:28,321 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:28,321 INFO L85 PathProgramCache]: Analyzing trace with hash 190109661, now seen corresponding path program 1 times [2024-11-18 14:22:28,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:28,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319750572] [2024-11-18 14:22:28,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:28,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:28,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:28,627 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 97 proven. 35 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2024-11-18 14:22:28,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319750572] [2024-11-18 14:22:28,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319750572] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:28,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [928864872] [2024-11-18 14:22:28,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:28,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:28,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:28,629 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:28,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 14:22:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:28,801 INFO L255 TraceCheckSpWp]: Trace formula consists of 622 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 14:22:28,816 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:29,081 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 171 proven. 4 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-11-18 14:22:29,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 82 proven. 42 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2024-11-18 14:22:29,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [928864872] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:29,612 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:29,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 11] total 25 [2024-11-18 14:22:29,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309647118] [2024-11-18 14:22:29,612 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:29,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-18 14:22:29,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:29,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-18 14:22:29,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=498, Unknown=0, NotChecked=0, Total=600 [2024-11-18 14:22:29,615 INFO L87 Difference]: Start difference. First operand 1022 states and 1224 transitions. Second operand has 25 states, 25 states have (on average 9.4) internal successors, (235), 22 states have internal predecessors, (235), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-18 14:22:31,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:31,744 INFO L93 Difference]: Finished difference Result 3245 states and 4069 transitions. [2024-11-18 14:22:31,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-18 14:22:31,745 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 9.4) internal successors, (235), 22 states have internal predecessors, (235), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) Word has length 219 [2024-11-18 14:22:31,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:31,758 INFO L225 Difference]: With dead ends: 3245 [2024-11-18 14:22:31,758 INFO L226 Difference]: Without dead ends: 2174 [2024-11-18 14:22:31,764 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 500 GetRequests, 432 SyntacticMatches, 3 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 982 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=758, Invalid=3664, Unknown=0, NotChecked=0, Total=4422 [2024-11-18 14:22:31,765 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 864 mSDsluCounter, 1235 mSDsCounter, 0 mSdLazyCounter, 2275 mSolverCounterSat, 392 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 1356 SdHoareTripleChecker+Invalid, 2667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 392 IncrementalHoareTripleChecker+Valid, 2275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:31,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 1356 Invalid, 2667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [392 Valid, 2275 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-18 14:22:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2174 states. [2024-11-18 14:22:31,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2174 to 2095. [2024-11-18 14:22:31,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2095 states, 1570 states have (on average 1.1426751592356688) internal successors, (1794), 1661 states have internal predecessors, (1794), 286 states have call successors, (286), 248 states have call predecessors, (286), 238 states have return successors, (333), 251 states have call predecessors, (333), 286 states have call successors, (333) [2024-11-18 14:22:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2095 states to 2095 states and 2413 transitions. [2024-11-18 14:22:31,939 INFO L78 Accepts]: Start accepts. Automaton has 2095 states and 2413 transitions. Word has length 219 [2024-11-18 14:22:31,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:31,939 INFO L471 AbstractCegarLoop]: Abstraction has 2095 states and 2413 transitions. [2024-11-18 14:22:31,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 9.4) internal successors, (235), 22 states have internal predecessors, (235), 10 states have call successors, (39), 5 states have call predecessors, (39), 11 states have return successors, (45), 11 states have call predecessors, (45), 10 states have call successors, (45) [2024-11-18 14:22:31,940 INFO L276 IsEmpty]: Start isEmpty. Operand 2095 states and 2413 transitions. [2024-11-18 14:22:31,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-11-18 14:22:31,947 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:31,948 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:22:31,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 14:22:32,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-18 14:22:32,150 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:32,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:32,150 INFO L85 PathProgramCache]: Analyzing trace with hash -1449036705, now seen corresponding path program 1 times [2024-11-18 14:22:32,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:32,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428696263] [2024-11-18 14:22:32,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:32,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:32,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:32,520 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 106 proven. 62 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-18 14:22:32,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:32,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428696263] [2024-11-18 14:22:32,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428696263] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:32,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915475381] [2024-11-18 14:22:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:32,522 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:32,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:32,524 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:32,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 14:22:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:32,665 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-18 14:22:32,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:32,848 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 211 proven. 11 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-18 14:22:32,849 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 106 proven. 62 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-18 14:22:33,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915475381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:33,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:33,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8, 8] total 22 [2024-11-18 14:22:33,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604045671] [2024-11-18 14:22:33,420 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:33,421 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-18 14:22:33,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:33,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-18 14:22:33,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=389, Unknown=0, NotChecked=0, Total=462 [2024-11-18 14:22:33,422 INFO L87 Difference]: Start difference. First operand 2095 states and 2413 transitions. Second operand has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-18 14:22:34,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:34,354 INFO L93 Difference]: Finished difference Result 4136 states and 4776 transitions. [2024-11-18 14:22:34,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 14:22:34,355 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) Word has length 239 [2024-11-18 14:22:34,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:34,367 INFO L225 Difference]: With dead ends: 4136 [2024-11-18 14:22:34,368 INFO L226 Difference]: Without dead ends: 2227 [2024-11-18 14:22:34,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 509 GetRequests, 474 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=225, Invalid=1035, Unknown=0, NotChecked=0, Total=1260 [2024-11-18 14:22:34,374 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 328 mSDsluCounter, 1200 mSDsCounter, 0 mSdLazyCounter, 1062 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 1336 SdHoareTripleChecker+Invalid, 1194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 1062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:34,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 1336 Invalid, 1194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 1062 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 14:22:34,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2227 states. [2024-11-18 14:22:34,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2227 to 2016. [2024-11-18 14:22:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2016 states, 1515 states have (on average 1.1366336633663365) internal successors, (1722), 1595 states have internal predecessors, (1722), 258 states have call successors, (258), 242 states have call predecessors, (258), 242 states have return successors, (305), 240 states have call predecessors, (305), 258 states have call successors, (305) [2024-11-18 14:22:34,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2016 states to 2016 states and 2285 transitions. [2024-11-18 14:22:34,537 INFO L78 Accepts]: Start accepts. Automaton has 2016 states and 2285 transitions. Word has length 239 [2024-11-18 14:22:34,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:34,537 INFO L471 AbstractCegarLoop]: Abstraction has 2016 states and 2285 transitions. [2024-11-18 14:22:34,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.954545454545455) internal successors, (263), 19 states have internal predecessors, (263), 7 states have call successors, (46), 5 states have call predecessors, (46), 13 states have return successors, (50), 11 states have call predecessors, (50), 7 states have call successors, (50) [2024-11-18 14:22:34,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2016 states and 2285 transitions. [2024-11-18 14:22:34,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-18 14:22:34,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:34,544 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:22:34,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-18 14:22:34,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:34,749 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:34,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:34,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1667126754, now seen corresponding path program 1 times [2024-11-18 14:22:34,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:34,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170661338] [2024-11-18 14:22:34,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:34,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:34,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:35,413 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 101 proven. 60 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-18 14:22:35,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:35,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170661338] [2024-11-18 14:22:35,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170661338] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:35,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2402919] [2024-11-18 14:22:35,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:35,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:35,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:35,416 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:35,417 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 14:22:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:35,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 673 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-18 14:22:35,581 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:35,807 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 151 proven. 26 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 14:22:35,808 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:36,435 INFO L134 CoverageAnalysis]: Checked inductivity of 282 backedges. 107 proven. 45 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2024-11-18 14:22:36,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2402919] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:36,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:36,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 13] total 21 [2024-11-18 14:22:36,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869572246] [2024-11-18 14:22:36,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:36,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-18 14:22:36,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:36,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-18 14:22:36,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-18 14:22:36,441 INFO L87 Difference]: Start difference. First operand 2016 states and 2285 transitions. Second operand has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) [2024-11-18 14:22:37,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:37,594 INFO L93 Difference]: Finished difference Result 4040 states and 4670 transitions. [2024-11-18 14:22:37,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-18 14:22:37,595 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) Word has length 240 [2024-11-18 14:22:37,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:37,609 INFO L225 Difference]: With dead ends: 4040 [2024-11-18 14:22:37,609 INFO L226 Difference]: Without dead ends: 2861 [2024-11-18 14:22:37,614 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 519 GetRequests, 474 SyntacticMatches, 8 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=423, Invalid=1059, Unknown=0, NotChecked=0, Total=1482 [2024-11-18 14:22:37,615 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 671 mSDsluCounter, 640 mSDsCounter, 0 mSdLazyCounter, 990 mSolverCounterSat, 293 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 816 SdHoareTripleChecker+Invalid, 1283 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 293 IncrementalHoareTripleChecker+Valid, 990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:37,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 816 Invalid, 1283 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [293 Valid, 990 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-18 14:22:37,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2861 states. [2024-11-18 14:22:37,803 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2861 to 2521. [2024-11-18 14:22:37,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1895 states have (on average 1.1319261213720317) internal successors, (2145), 1989 states have internal predecessors, (2145), 327 states have call successors, (327), 306 states have call predecessors, (327), 298 states have return successors, (369), 301 states have call predecessors, (369), 327 states have call successors, (369) [2024-11-18 14:22:37,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 2841 transitions. [2024-11-18 14:22:37,819 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 2841 transitions. Word has length 240 [2024-11-18 14:22:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:37,819 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 2841 transitions. [2024-11-18 14:22:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 12.380952380952381) internal successors, (260), 20 states have internal predecessors, (260), 15 states have call successors, (50), 8 states have call predecessors, (50), 14 states have return successors, (50), 15 states have call predecessors, (50), 15 states have call successors, (50) [2024-11-18 14:22:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 2841 transitions. [2024-11-18 14:22:37,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2024-11-18 14:22:37,827 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:22:37,827 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-18 14:22:37,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 14:22:38,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:38,028 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:22:38,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:22:38,029 INFO L85 PathProgramCache]: Analyzing trace with hash 478316617, now seen corresponding path program 1 times [2024-11-18 14:22:38,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:22:38,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285759848] [2024-11-18 14:22:38,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:38,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:22:38,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:38,410 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 130 proven. 77 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2024-11-18 14:22:38,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:22:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285759848] [2024-11-18 14:22:38,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285759848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 14:22:38,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578664785] [2024-11-18 14:22:38,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:22:38,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 14:22:38,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:22:38,413 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 14:22:38,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 14:22:38,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:22:38,575 INFO L255 TraceCheckSpWp]: Trace formula consists of 765 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-18 14:22:38,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 14:22:38,907 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 156 proven. 83 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-18 14:22:38,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 14:22:39,760 INFO L134 CoverageAnalysis]: Checked inductivity of 425 backedges. 95 proven. 127 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2024-11-18 14:22:39,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578664785] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 14:22:39,760 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 14:22:39,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 16] total 24 [2024-11-18 14:22:39,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736334371] [2024-11-18 14:22:39,761 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 14:22:39,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-18 14:22:39,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:22:39,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-18 14:22:39,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=426, Unknown=0, NotChecked=0, Total=552 [2024-11-18 14:22:39,764 INFO L87 Difference]: Start difference. First operand 2521 states and 2841 transitions. Second operand has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-18 14:22:41,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:22:41,268 INFO L93 Difference]: Finished difference Result 6209 states and 7085 transitions. [2024-11-18 14:22:41,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 14:22:41,269 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) Word has length 278 [2024-11-18 14:22:41,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:22:41,275 INFO L225 Difference]: With dead ends: 6209 [2024-11-18 14:22:41,275 INFO L226 Difference]: Without dead ends: 0 [2024-11-18 14:22:41,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 581 GetRequests, 536 SyntacticMatches, 10 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=343, Invalid=989, Unknown=0, NotChecked=0, Total=1332 [2024-11-18 14:22:41,290 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 471 mSDsluCounter, 1422 mSDsCounter, 0 mSdLazyCounter, 1884 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 480 SdHoareTripleChecker+Valid, 1598 SdHoareTripleChecker+Invalid, 2094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 1884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:22:41,291 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [480 Valid, 1598 Invalid, 2094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 1884 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 14:22:41,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-18 14:22:41,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-18 14:22:41,291 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) [2024-11-18 14:22:41,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-18 14:22:41,294 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 278 [2024-11-18 14:22:41,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:22:41,295 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-18 14:22:41,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 13.5) internal successors, (324), 23 states have internal predecessors, (324), 16 states have call successors, (60), 10 states have call predecessors, (60), 17 states have return successors, (63), 16 states have call predecessors, (63), 16 states have call successors, (63) [2024-11-18 14:22:41,295 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-18 14:22:41,295 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-18 14:22:41,298 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-18 14:22:41,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-18 14:22:41,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-18 14:22:41,505 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 14:22:41,508 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-18 14:23:10,510 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-18 14:23:10,527 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= |old(~pumpRunning~0)| 1) (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) Eliminated clause: (and (<= ~waterLevel~0 2) (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) [2024-11-18 14:23:10,544 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or .cse0 (not .cse1)) (or (not .cse0) .cse1) (let ((.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse2))))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= ~methaneLevelCritical~0 0)) (.cse0 (= |old(~methaneLevelCritical~0)| 0))) (and (or .cse0 (not .cse1)) (or (not .cse0) .cse1) (let ((.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 .cse2 (not (= 0 ~systemActive~0)) (= ~pumpRunning~0 1)) (and (= ~pumpRunning~0 0) .cse2)))))) [2024-11-18 14:23:10,550 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:23:10,560 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse1 (not .cse8)) (.cse6 (= |old(~pumpRunning~0)| 1)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse0 (< 1 |old(~waterLevel~0)|)) (.cse2 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse3 (= 0 ~systemActive~0)) (.cse4 (<= 1 ~switchedOnBeforeTS~0))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or .cse1 (and (= ~pumpRunning~0 0) .cse5)) (let ((.cse7 (<= |old(~waterLevel~0)| 2))) (or (and .cse6 .cse7 (not .cse3)) (and .cse8 .cse7))) (or (not .cse6) (and .cse5 (= ~pumpRunning~0 1))) (or (not (= |old(~waterLevel~0)| 1)) .cse2 .cse3 .cse4) (or .cse0 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3 .cse4)))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int) (|old(~switchedOnBeforeTS~0)| Int) (|old(~waterLevel~0)| Int)) (let ((.cse8 (= |old(~pumpRunning~0)| 0))) (let ((.cse0 (< 1 |old(~waterLevel~0)|)) (.cse4 (not .cse8)) (.cse6 (= |old(~pumpRunning~0)| 1)) (.cse5 (= |old(~waterLevel~0)| ~waterLevel~0)) (.cse1 (< |old(~switchedOnBeforeTS~0)| 1)) (.cse2 (< 0 ~switchedOnBeforeTS~0)) (.cse3 (= 0 ~systemActive~0))) (and (or .cse0 .cse1 .cse2 (not (= ~methaneLevelCritical~0 0)) .cse3) (or .cse0 .cse4 .cse1 .cse2 .cse3) (or .cse4 (and (= ~pumpRunning~0 0) .cse5)) (let ((.cse7 (<= |old(~waterLevel~0)| 2))) (or (and .cse6 .cse7 (not .cse3)) (and .cse8 .cse7))) (or (not .cse6) (and .cse5 (= ~pumpRunning~0 1))) (or (not (= |old(~waterLevel~0)| 1)) .cse1 .cse2 .cse3))))) [2024-11-18 14:23:10,589 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:23:10,604 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2)))))) [2024-11-18 14:23:10,613 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:23:10,617 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1))) (or (and (= ~pumpRunning~0 0) (<= |old(~waterLevel~0)| 2)) (and .cse0 (<= |old(~waterLevel~0)| 1) (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2) .cse2))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse1 (not (= 0 ~systemActive~0))) (.cse2 (= ~pumpRunning~0 1))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1 .cse2) (and (= ~pumpRunning~0 0) (<= ~waterLevel~0 2)) (and .cse0 (<= ~waterLevel~0 1) (<= 1 ~switchedOnBeforeTS~0) .cse1 .cse2))) [2024-11-18 14:23:10,626 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2))))) Eliminated clause: (exists ((|old(~pumpRunning~0)| Int)) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (= |old(~pumpRunning~0)| 1))) (and (or (not .cse0) (= ~pumpRunning~0 0)) (or (not .cse1) (= ~pumpRunning~0 1)) (let ((.cse2 (not (= 0 ~systemActive~0)))) (or (and .cse0 (<= ~waterLevel~0 2) .cse2) (and (= ~methaneLevelCritical~0 0) (<= ~waterLevel~0 1) .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2)))))) [2024-11-18 14:23:10,629 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-18 14:23:10,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:23:10 BoogieIcfgContainer [2024-11-18 14:23:10,638 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-18 14:23:10,639 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-18 14:23:10,639 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-18 14:23:10,639 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-18 14:23:10,640 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:22:23" (3/4) ... [2024-11-18 14:23:10,642 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-18 14:23:10,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-18 14:23:10,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-18 14:23:10,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-18 14:23:10,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-18 14:23:10,646 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-18 14:23:10,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-18 14:23:10,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-18 14:23:10,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-18 14:23:10,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-11-18 14:23:10,647 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-18 14:23:10,658 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2024-11-18 14:23:10,658 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-18 14:23:10,659 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-18 14:23:10,659 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:23:10,659 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-18 14:23:10,778 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-18 14:23:10,779 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-18 14:23:10,779 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-18 14:23:10,780 INFO L158 Benchmark]: Toolchain (without parser) took 48496.86ms. Allocated memory was 155.2MB in the beginning and 679.5MB in the end (delta: 524.3MB). Free memory was 126.1MB in the beginning and 299.8MB in the end (delta: -173.7MB). Peak memory consumption was 349.3MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,780 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-18 14:23:10,780 INFO L158 Benchmark]: CACSL2BoogieTranslator took 497.87ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 103.1MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,780 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.45ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,781 INFO L158 Benchmark]: Boogie Preprocessor took 44.37ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,781 INFO L158 Benchmark]: RCFGBuilder took 555.75ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 77.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,781 INFO L158 Benchmark]: TraceAbstraction took 47202.99ms. Allocated memory was 155.2MB in the beginning and 679.5MB in the end (delta: 524.3MB). Free memory was 76.6MB in the beginning and 308.2MB in the end (delta: -231.6MB). Peak memory consumption was 378.8MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,782 INFO L158 Benchmark]: Witness Printer took 140.22ms. Allocated memory is still 679.5MB. Free memory was 308.2MB in the beginning and 299.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-18 14:23:10,783 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 121.6MB. Free memory is still 90.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 497.87ms. Allocated memory is still 155.2MB. Free memory was 125.4MB in the beginning and 103.1MB in the end (delta: 22.3MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.45ms. Allocated memory is still 155.2MB. Free memory was 103.1MB in the beginning and 101.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.37ms. Allocated memory is still 155.2MB. Free memory was 101.0MB in the beginning and 98.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 555.75ms. Allocated memory is still 155.2MB. Free memory was 98.2MB in the beginning and 77.2MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 47202.99ms. Allocated memory was 155.2MB in the beginning and 679.5MB in the end (delta: 524.3MB). Free memory was 76.6MB in the beginning and 308.2MB in the end (delta: -231.6MB). Peak memory consumption was 378.8MB. Max. memory is 16.1GB. * Witness Printer took 140.22ms. Allocated memory is still 679.5MB. Free memory was 308.2MB in the beginning and 299.8MB 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,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] - GenericResultAtLocation [Line: 176]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] - GenericResultAtLocation [Line: 450]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] - GenericResultAtLocation [Line: 697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 658]: 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 11 procedures, 118 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 18.0s, OverallIterations: 14, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3350 SdHoareTripleChecker+Valid, 4.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3306 mSDsluCounter, 10561 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 8358 mSDsCounter, 1173 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7185 IncrementalHoareTripleChecker+Invalid, 8358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1173 mSolverCounterUnsat, 2203 mSDtfsCounter, 7185 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2437 GetRequests, 2182 SyntacticMatches, 26 SemanticMatches, 229 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1944 ImplicationChecksByTransitivity, 2.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2521occurred in iteration=13, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.9s AutomataMinimizationTime, 14 MinimizatonAttempts, 885 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.9s InterpolantComputationTime, 2674 NumberOfCodeBlocks, 2674 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3749 ConstructedInterpolants, 0 QuantifiedInterpolants, 8172 SizeOfPredicates, 5 NumberOfNonLiveVariables, 3120 ConjunctsInSsa, 81 ConjunctsInUnsatCore, 24 InterpolantComputations, 9 PerfectInterpolantSequences, 3157/3822 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: 565]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 117]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) || (((pumpRunning == 0) && (2 == waterLevel)) && (splverifierCounter == 0))) || ((((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel <= 0)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 0))) || (((((2 == waterLevel) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (waterLevel == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) - ProcedureContractResult [Line: 325]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1)) Ensures: (((((pumpRunning == 0) && (\old(pumpRunning) == 1)) && (waterLevel <= 2)) && (0 != systemActive)) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 215]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: ((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((((pumpRunning == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 477]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((methaneLevelCritical == 0) || (\old(methaneLevelCritical) == 0)) && (((((\old(methaneLevelCritical) == 0) && (waterLevel <= 2)) && (0 != systemActive)) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel <= 2)))) && ((\old(methaneLevelCritical) != 0) || (methaneLevelCritical != 0))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 555]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 188]: Procedure Contract for timeShift Derived contract for procedure timeShift. Ensures: ((((((((((((((((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (methaneLevelCritical == 0)) || (((pumpRunning == 0) && (\old(waterLevel) == ((long long) waterLevel + 1))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) != 1)) || (0 == systemActive)) || (2 < \old(waterLevel))) && (((((((\old(waterLevel) == ((long long) waterLevel + 1)) && (1 <= switchedOnBeforeTS)) && (pumpRunning == 1)) || (((pumpRunning == 0) && (\old(waterLevel) == ((long long) waterLevel + 1))) && (1 <= switchedOnBeforeTS))) || (\old(pumpRunning) != 1)) || (((((waterLevel <= 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && (((((\old(switchedOnBeforeTS) < 1) || (0 < \old(waterLevel))) || (\old(pumpRunning) != 1)) || (((((waterLevel <= 0) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || (((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && ((((pumpRunning == 0) && (2 == waterLevel)) || (\old(waterLevel) != 2)) || (0 != systemActive))) && ((((\old(pumpRunning) == 1) && (\old(waterLevel) <= 2)) && (0 != systemActive)) || ((\old(pumpRunning) == 0) && (\old(waterLevel) <= 2)))) && ((((((((pumpRunning == 0) && (waterLevel <= 0)) && (\old(waterLevel) == waterLevel)) && (1 <= switchedOnBeforeTS)) || (methaneLevelCritical == 0)) || (0 < \old(waterLevel))) || (\old(pumpRunning) != 1)) || (0 == systemActive))) && ((((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (2 == waterLevel))) || (\old(waterLevel) != 2)) || ((2 == waterLevel) && (pumpRunning == 1)))) && (((1 < \old(waterLevel)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel)))) && (((\old(pumpRunning) != 0) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) || (methaneLevelCritical == 0))) && ((((systemActive == \old(systemActive)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 223]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Ensures: (((((((\old(pumpRunning) != 1) || (pumpRunning == 1)) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) && ((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || ((((waterLevel <= 1) && (\old(pumpRunning) == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 465]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((2 == waterLevel) && (methaneLevelCritical == 0)) && (0 != systemActive)) && (pumpRunning == 1)) || ((pumpRunning == 0) && (waterLevel <= 2))) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: ((((((2 == waterLevel) || (\old(waterLevel) != 2)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (waterLevel <= ((long long) \old(waterLevel) + 1))) && ((((pumpRunning == 0) && (\old(waterLevel) <= 2)) || (((((methaneLevelCritical == 0) && (\old(waterLevel) <= 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) || ((((methaneLevelCritical == 0) && (0 != systemActive)) && (\old(waterLevel) == 2)) && (pumpRunning == 1)))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 249]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Ensures: ((((((((\old(pumpRunning) == 0) && (waterLevel <= 2)) && (0 != systemActive)) || (((((methaneLevelCritical == 0) && (waterLevel <= 1)) && (\old(pumpRunning) == 1)) && (1 <= switchedOnBeforeTS)) && (0 != systemActive))) && (((\old(pumpRunning) != 0) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (pumpRunning == 1))) && ((pumpRunning == 0) || (methaneLevelCritical == 0))) && ((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 344]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: (((pumpRunning == 0) && (waterLevel <= 2)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((pumpRunning == \result) && (((pumpRunning == 0) && (waterLevel <= 2)) || (((waterLevel <= 2) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) - ProcedureContractResult [Line: 333]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: ((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || ((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1))) Ensures: (((methaneLevelCritical == \result) && ((((pumpRunning == 0) && (2 == waterLevel)) && (0 != systemActive)) || ((((waterLevel <= 1) && (1 <= switchedOnBeforeTS)) && (0 != systemActive)) && (pumpRunning == 1)))) && (((((((switchedOnBeforeTS == \old(switchedOnBeforeTS)) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (cleanupTimeShifts == \old(cleanupTimeShifts))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-18 14:23:10,825 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE