./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.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 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:10:52,112 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:10:52,178 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:10:52,182 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:10:52,182 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:10:52,204 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:10:52,205 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:10:52,205 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:10:52,205 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:10:52,207 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:10:52,207 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:10:52,207 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:10:52,208 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:10:52,208 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:10:52,208 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:10:52,208 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:10:52,209 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:10:52,210 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:10:52,210 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:10:52,210 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:10:52,210 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:10:52,211 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:10:52,211 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:10:52,212 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:10:52,212 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:10:52,212 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:10:52,212 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:10:52,212 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:10:52,213 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:10:52,213 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:10:52,213 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:10:52,214 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:10:52,215 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 96a9f4a5eb48d3a052332271e6f513d6efe176b9f027fc1b42847acbd4831cf9 [2024-10-14 03:10:52,412 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:10:52,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:10:52,434 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:10:52,435 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:10:52,436 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:10:52,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2024-10-14 03:10:53,643 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:10:53,832 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:10:53,833 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product48.cil.c [2024-10-14 03:10:53,843 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1507f4ca4/18900f14342449e78683a823601fc5e7/FLAGf9417a62f [2024-10-14 03:10:53,855 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1507f4ca4/18900f14342449e78683a823601fc5e7 [2024-10-14 03:10:53,857 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:10:53,858 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:10:53,861 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:10:53,862 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:10:53,866 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:10:53,866 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:10:53" (1/1) ... [2024-10-14 03:10:53,867 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d3ac58c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:53, skipping insertion in model container [2024-10-14 03:10:53,867 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:10:53" (1/1) ... [2024-10-14 03:10:53,903 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:10:54,103 WARN L248 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_product48.cil.c[11292,11305] [2024-10-14 03:10:54,153 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:10:54,163 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:10:54,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] [2024-10-14 03:10:54,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] [2024-10-14 03:10:54,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] [2024-10-14 03:10:54,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] [2024-10-14 03:10:54,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [730] [2024-10-14 03:10:54,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [825] [2024-10-14 03:10:54,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [926] [2024-10-14 03:10:54,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [975] [2024-10-14 03:10:54,210 WARN L248 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_product48.cil.c[11292,11305] [2024-10-14 03:10:54,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:10:54,249 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:10:54,250 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54 WrapperNode [2024-10-14 03:10:54,250 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:10:54,251 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:10:54,251 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:10:54,251 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:10:54,256 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,294 INFO L138 Inliner]: procedures = 58, calls = 105, calls flagged for inlining = 25, calls inlined = 22, statements flattened = 217 [2024-10-14 03:10:54,295 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:10:54,295 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:10:54,295 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:10:54,296 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:10:54,304 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,326 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]. [2024-10-14 03:10:54,327 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,327 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,330 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,334 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,335 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,339 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:10:54,341 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:10:54,341 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:10:54,341 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:10:54,342 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (1/1) ... [2024-10-14 03:10:54,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:10:54,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:10:54,379 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) [2024-10-14 03:10:54,382 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 [2024-10-14 03:10:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:10:54,421 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-14 03:10:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-14 03:10:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 03:10:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 03:10:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 03:10:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 03:10:54,422 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-14 03:10:54,422 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-14 03:10:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:10:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:10:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-14 03:10:54,423 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-14 03:10:54,423 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-14 03:10:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-14 03:10:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-14 03:10:54,424 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-14 03:10:54,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:10:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-14 03:10:54,425 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-14 03:10:54,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:10:54,425 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:10:54,490 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:10:54,492 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:10:54,737 INFO L? ?]: Removed 43 outVars from TransFormulas that were not future-live. [2024-10-14 03:10:54,737 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:10:54,789 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:10:54,789 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 03:10:54,790 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:10:54 BoogieIcfgContainer [2024-10-14 03:10:54,790 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:10:54,792 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:10:54,792 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:10:54,795 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:10:54,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:10:53" (1/3) ... [2024-10-14 03:10:54,795 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db345c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:10:54, skipping insertion in model container [2024-10-14 03:10:54,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:10:54" (2/3) ... [2024-10-14 03:10:54,796 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db345c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:10:54, skipping insertion in model container [2024-10-14 03:10:54,796 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:10:54" (3/3) ... [2024-10-14 03:10:54,797 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product48.cil.c [2024-10-14 03:10:54,809 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:10:54,809 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:10:54,864 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:10:54,869 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;@15d90b61, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:10:54,869 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:10:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 56 states have (on average 1.5) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-14 03:10:54,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-14 03:10:54,884 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:54,885 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:10:54,885 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:54,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash -449197899, now seen corresponding path program 1 times [2024-10-14 03:10:54,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:54,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [234477287] [2024-10-14 03:10:54,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:54,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 03:10:55,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,056 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:55,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:55,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [234477287] [2024-10-14 03:10:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [234477287] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:55,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:55,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:10:55,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437090738] [2024-10-14 03:10:55,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:55,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:10:55,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:55,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:10:55,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:10:55,104 INFO L87 Difference]: Start difference. First operand has 83 states, 56 states have (on average 1.5) internal successors, (84), 65 states have internal predecessors, (84), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 13 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-10-14 03:10:55,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:55,177 INFO L93 Difference]: Finished difference Result 164 states and 233 transitions. [2024-10-14 03:10:55,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:10:55,180 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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 22 [2024-10-14 03:10:55,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:55,188 INFO L225 Difference]: With dead ends: 164 [2024-10-14 03:10:55,188 INFO L226 Difference]: Without dead ends: 78 [2024-10-14 03:10:55,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:10:55,193 INFO L432 NwaCegarLoop]: 95 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:55,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 95 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:10:55,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2024-10-14 03:10:55,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2024-10-14 03:10:55,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 61 states have internal predecessors, (74), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 12 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:10:55,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 105 transitions. [2024-10-14 03:10:55,224 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 105 transitions. Word has length 22 [2024-10-14 03:10:55,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:55,225 INFO L471 AbstractCegarLoop]: Abstraction has 78 states and 105 transitions. [2024-10-14 03:10:55,225 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 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) [2024-10-14 03:10:55,225 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 105 transitions. [2024-10-14 03:10:55,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-14 03:10:55,228 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:55,229 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:10:55,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:10:55,230 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:55,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:55,231 INFO L85 PathProgramCache]: Analyzing trace with hash -202773606, now seen corresponding path program 1 times [2024-10-14 03:10:55,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:55,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1625046850] [2024-10-14 03:10:55,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:55,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:55,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:10:55,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 03:10:55,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:55,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:55,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1625046850] [2024-10-14 03:10:55,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1625046850] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:55,317 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:55,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:10:55,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078231207] [2024-10-14 03:10:55,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:55,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:10:55,320 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:55,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:10:55,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:10:55,321 INFO L87 Difference]: Start difference. First operand 78 states and 105 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-14 03:10:55,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:55,353 INFO L93 Difference]: Finished difference Result 126 states and 168 transitions. [2024-10-14 03:10:55,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:10:55,353 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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 23 [2024-10-14 03:10:55,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:55,354 INFO L225 Difference]: With dead ends: 126 [2024-10-14 03:10:55,354 INFO L226 Difference]: Without dead ends: 70 [2024-10-14 03:10:55,355 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:10:55,356 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:55,356 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 146 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:10:55,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2024-10-14 03:10:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2024-10-14 03:10:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 48 states have (on average 1.4166666666666667) internal successors, (68), 56 states have internal predecessors, (68), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 10 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-14 03:10:55,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 94 transitions. [2024-10-14 03:10:55,363 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 94 transitions. Word has length 23 [2024-10-14 03:10:55,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:55,363 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 94 transitions. [2024-10-14 03:10:55,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 states have internal predecessors, (16), 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) [2024-10-14 03:10:55,363 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 94 transitions. [2024-10-14 03:10:55,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-14 03:10:55,364 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:55,364 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:55,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:10:55,364 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:55,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:55,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1368182408, now seen corresponding path program 1 times [2024-10-14 03:10:55,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:55,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1622779005] [2024-10-14 03:10:55,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:55,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:55,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:10:55,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-14 03:10:55,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,452 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:55,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:55,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1622779005] [2024-10-14 03:10:55,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1622779005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:55,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:55,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:10:55,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004385178] [2024-10-14 03:10:55,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:55,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:10:55,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:55,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:10:55,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:10:55,455 INFO L87 Difference]: Start difference. First operand 70 states and 94 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-14 03:10:55,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:55,510 INFO L93 Difference]: Finished difference Result 206 states and 279 transitions. [2024-10-14 03:10:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:10:55,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 26 [2024-10-14 03:10:55,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:55,512 INFO L225 Difference]: With dead ends: 206 [2024-10-14 03:10:55,512 INFO L226 Difference]: Without dead ends: 138 [2024-10-14 03:10:55,513 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:10:55,514 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 85 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:55,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 171 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:10:55,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2024-10-14 03:10:55,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 135. [2024-10-14 03:10:55,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 92 states have (on average 1.423913043478261) internal successors, (131), 107 states have internal predecessors, (131), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 19 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-14 03:10:55,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 183 transitions. [2024-10-14 03:10:55,540 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 183 transitions. Word has length 26 [2024-10-14 03:10:55,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:55,540 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 183 transitions. [2024-10-14 03:10:55,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2024-10-14 03:10:55,541 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 183 transitions. [2024-10-14 03:10:55,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-14 03:10:55,542 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:55,542 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:55,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:10:55,542 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:55,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:55,542 INFO L85 PathProgramCache]: Analyzing trace with hash 36370968, now seen corresponding path program 1 times [2024-10-14 03:10:55,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:55,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721357961] [2024-10-14 03:10:55,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:55,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:55,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-14 03:10:55,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 03:10:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,676 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 03:10:55,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:55,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721357961] [2024-10-14 03:10:55,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721357961] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:55,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:55,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:10:55,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375160783] [2024-10-14 03:10:55,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:55,678 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:10:55,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:55,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:10:55,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:10:55,680 INFO L87 Difference]: Start difference. First operand 135 states and 183 transitions. Second operand has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-14 03:10:55,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:55,838 INFO L93 Difference]: Finished difference Result 354 states and 485 transitions. [2024-10-14 03:10:55,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:10:55,838 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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 29 [2024-10-14 03:10:55,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:55,840 INFO L225 Difference]: With dead ends: 354 [2024-10-14 03:10:55,840 INFO L226 Difference]: Without dead ends: 221 [2024-10-14 03:10:55,841 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:10:55,842 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 51 mSDsluCounter, 265 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:55,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 345 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:10:55,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-10-14 03:10:55,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 220. [2024-10-14 03:10:55,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 153 states have (on average 1.3529411764705883) internal successors, (207), 170 states have internal predecessors, (207), 36 states have call successors, (36), 30 states have call predecessors, (36), 30 states have return successors, (44), 33 states have call predecessors, (44), 36 states have call successors, (44) [2024-10-14 03:10:55,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 287 transitions. [2024-10-14 03:10:55,871 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 287 transitions. Word has length 29 [2024-10-14 03:10:55,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:55,871 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 287 transitions. [2024-10-14 03:10:55,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 4.8) internal successors, (24), 5 states have internal predecessors, (24), 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) [2024-10-14 03:10:55,871 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 287 transitions. [2024-10-14 03:10:55,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:10:55,875 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:55,876 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:55,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:10:55,876 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:55,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:55,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1201233109, now seen corresponding path program 1 times [2024-10-14 03:10:55,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:55,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842300849] [2024-10-14 03:10:55,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:55,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:55,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:10:55,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 03:10:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:55,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:10:55,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:55,952 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:55,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:55,952 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842300849] [2024-10-14 03:10:55,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842300849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:55,953 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:55,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:10:55,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710549857] [2024-10-14 03:10:55,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:55,954 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:10:55,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:55,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:10:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:10:55,957 INFO L87 Difference]: Start difference. First operand 220 states and 287 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:10:56,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:56,122 INFO L93 Difference]: Finished difference Result 482 states and 645 transitions. [2024-10-14 03:10:56,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:10:56,122 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-10-14 03:10:56,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:56,124 INFO L225 Difference]: With dead ends: 482 [2024-10-14 03:10:56,124 INFO L226 Difference]: Without dead ends: 264 [2024-10-14 03:10:56,126 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:10:56,128 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 51 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:56,128 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 213 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:10:56,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2024-10-14 03:10:56,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 262. [2024-10-14 03:10:56,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 262 states, 185 states have (on average 1.335135135135135) internal successors, (247), 202 states have internal predecessors, (247), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-14 03:10:56,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 341 transitions. [2024-10-14 03:10:56,156 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 341 transitions. Word has length 44 [2024-10-14 03:10:56,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:56,157 INFO L471 AbstractCegarLoop]: Abstraction has 262 states and 341 transitions. [2024-10-14 03:10:56,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:10:56,157 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 341 transitions. [2024-10-14 03:10:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:10:56,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:56,160 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:56,161 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:10:56,161 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:56,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash -778531283, now seen corresponding path program 1 times [2024-10-14 03:10:56,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:56,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891876058] [2024-10-14 03:10:56,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:56,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:56,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:10:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,215 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 03:10:56,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:56,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:10:56,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:56,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:56,249 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891876058] [2024-10-14 03:10:56,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1891876058] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:56,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:56,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:10:56,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303915454] [2024-10-14 03:10:56,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:56,250 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:10:56,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:56,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:10:56,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:10:56,251 INFO L87 Difference]: Start difference. First operand 262 states and 341 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:10:56,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:56,375 INFO L93 Difference]: Finished difference Result 528 states and 703 transitions. [2024-10-14 03:10:56,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:10:56,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 44 [2024-10-14 03:10:56,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:56,377 INFO L225 Difference]: With dead ends: 528 [2024-10-14 03:10:56,378 INFO L226 Difference]: Without dead ends: 268 [2024-10-14 03:10:56,378 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:10:56,380 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 51 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:56,381 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 211 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:10:56,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2024-10-14 03:10:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 266. [2024-10-14 03:10:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 189 states have (on average 1.3280423280423281) internal successors, (251), 206 states have internal predecessors, (251), 40 states have call successors, (40), 30 states have call predecessors, (40), 36 states have return successors, (54), 41 states have call predecessors, (54), 40 states have call successors, (54) [2024-10-14 03:10:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 345 transitions. [2024-10-14 03:10:56,404 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 345 transitions. Word has length 44 [2024-10-14 03:10:56,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:56,405 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 345 transitions. [2024-10-14 03:10:56,406 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:10:56,406 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 345 transitions. [2024-10-14 03:10:56,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-10-14 03:10:56,408 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:56,408 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:56,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:10:56,409 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:56,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:56,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1710997679, now seen corresponding path program 1 times [2024-10-14 03:10:56,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:56,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852605207] [2024-10-14 03:10:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:56,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:56,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:10:56,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 03:10:56,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-14 03:10:56,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,484 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:56,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:56,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852605207] [2024-10-14 03:10:56,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852605207] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:56,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:56,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:10:56,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095369097] [2024-10-14 03:10:56,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:56,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:10:56,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:56,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:10:56,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:10:56,486 INFO L87 Difference]: Start difference. First operand 266 states and 345 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 03:10:56,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:56,786 INFO L93 Difference]: Finished difference Result 863 states and 1195 transitions. [2024-10-14 03:10:56,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:10:56,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2024-10-14 03:10:56,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:56,791 INFO L225 Difference]: With dead ends: 863 [2024-10-14 03:10:56,791 INFO L226 Difference]: Without dead ends: 599 [2024-10-14 03:10:56,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:10:56,793 INFO L432 NwaCegarLoop]: 117 mSDtfsCounter, 202 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 309 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:56,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [210 Valid, 281 Invalid, 309 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:10:56,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2024-10-14 03:10:56,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 591. [2024-10-14 03:10:56,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 591 states, 418 states have (on average 1.313397129186603) internal successors, (549), 449 states have internal predecessors, (549), 96 states have call successors, (96), 77 states have call predecessors, (96), 76 states have return successors, (146), 90 states have call predecessors, (146), 96 states have call successors, (146) [2024-10-14 03:10:56,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 591 states to 591 states and 791 transitions. [2024-10-14 03:10:56,856 INFO L78 Accepts]: Start accepts. Automaton has 591 states and 791 transitions. Word has length 44 [2024-10-14 03:10:56,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:56,857 INFO L471 AbstractCegarLoop]: Abstraction has 591 states and 791 transitions. [2024-10-14 03:10:56,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-14 03:10:56,857 INFO L276 IsEmpty]: Start isEmpty. Operand 591 states and 791 transitions. [2024-10-14 03:10:56,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-10-14 03:10:56,859 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:56,859 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-14 03:10:56,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:10:56,860 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:56,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:56,861 INFO L85 PathProgramCache]: Analyzing trace with hash -733397867, now seen corresponding path program 1 times [2024-10-14 03:10:56,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:56,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343276916] [2024-10-14 03:10:56,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:56,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:56,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:10:56,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-14 03:10:56,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:56,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-14 03:10:56,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:57,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-14 03:10:57,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:10:57,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:57,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343276916] [2024-10-14 03:10:57,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343276916] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:57,036 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:57,036 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:10:57,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354370726] [2024-10-14 03:10:57,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:57,037 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:10:57,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:57,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:10:57,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:10:57,038 INFO L87 Difference]: Start difference. First operand 591 states and 791 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 03:10:57,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:57,413 INFO L93 Difference]: Finished difference Result 1258 states and 1712 transitions. [2024-10-14 03:10:57,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-14 03:10:57,413 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) Word has length 48 [2024-10-14 03:10:57,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:57,416 INFO L225 Difference]: With dead ends: 1258 [2024-10-14 03:10:57,417 INFO L226 Difference]: Without dead ends: 669 [2024-10-14 03:10:57,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=207, Unknown=0, NotChecked=0, Total=306 [2024-10-14 03:10:57,419 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 251 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 486 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:57,419 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 286 Invalid, 486 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:10:57,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 669 states. [2024-10-14 03:10:57,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 669 to 667. [2024-10-14 03:10:57,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 667 states, 472 states have (on average 1.2923728813559323) internal successors, (610), 511 states have internal predecessors, (610), 108 states have call successors, (108), 77 states have call predecessors, (108), 86 states have return successors, (180), 104 states have call predecessors, (180), 108 states have call successors, (180) [2024-10-14 03:10:57,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 898 transitions. [2024-10-14 03:10:57,471 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 898 transitions. Word has length 48 [2024-10-14 03:10:57,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:57,472 INFO L471 AbstractCegarLoop]: Abstraction has 667 states and 898 transitions. [2024-10-14 03:10:57,472 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 6 states have internal predecessors, (36), 4 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 03:10:57,472 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 898 transitions. [2024-10-14 03:10:57,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-10-14 03:10:57,473 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:57,474 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-14 03:10:57,474 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:10:57,474 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:57,474 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:57,474 INFO L85 PathProgramCache]: Analyzing trace with hash 2067267942, now seen corresponding path program 1 times [2024-10-14 03:10:57,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:57,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385880027] [2024-10-14 03:10:57,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:57,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:57,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:10:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,504 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-14 03:10:57,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:10:57,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:10:57,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:57,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 03:10:57,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:10:57,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,531 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-14 03:10:57,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:57,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385880027] [2024-10-14 03:10:57,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385880027] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:10:57,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:10:57,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-14 03:10:57,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191922994] [2024-10-14 03:10:57,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:10:57,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-14 03:10:57,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:57,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-14 03:10:57,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:10:57,533 INFO L87 Difference]: Start difference. First operand 667 states and 898 transitions. Second operand has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 03:10:57,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:57,796 INFO L93 Difference]: Finished difference Result 1098 states and 1470 transitions. [2024-10-14 03:10:57,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-14 03:10:57,797 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 73 [2024-10-14 03:10:57,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:57,799 INFO L225 Difference]: With dead ends: 1098 [2024-10-14 03:10:57,799 INFO L226 Difference]: Without dead ends: 433 [2024-10-14 03:10:57,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-14 03:10:57,803 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 275 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 270 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 379 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 270 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:57,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 213 Invalid, 379 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 270 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:10:57,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-10-14 03:10:57,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 425. [2024-10-14 03:10:57,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 302 states have (on average 1.2781456953642385) internal successors, (386), 327 states have internal predecessors, (386), 68 states have call successors, (68), 51 states have call predecessors, (68), 54 states have return successors, (104), 66 states have call predecessors, (104), 68 states have call successors, (104) [2024-10-14 03:10:57,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 558 transitions. [2024-10-14 03:10:57,829 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 558 transitions. Word has length 73 [2024-10-14 03:10:57,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:57,829 INFO L471 AbstractCegarLoop]: Abstraction has 425 states and 558 transitions. [2024-10-14 03:10:57,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.333333333333334) internal successors, (56), 4 states have internal predecessors, (56), 4 states have call successors, (8), 5 states have call predecessors, (8), 2 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-10-14 03:10:57,830 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 558 transitions. [2024-10-14 03:10:57,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-14 03:10:57,831 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:10:57,832 INFO L215 NwaCegarLoop]: trace histogram [3, 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] [2024-10-14 03:10:57,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:10:57,832 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:10:57,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:10:57,832 INFO L85 PathProgramCache]: Analyzing trace with hash -1943847318, now seen corresponding path program 1 times [2024-10-14 03:10:57,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:10:57,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099935631] [2024-10-14 03:10:57,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:57,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:10:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:10:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:10:57,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:10:57,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-14 03:10:57,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:10:57,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:57,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-14 03:10:57,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-14 03:10:58,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-14 03:10:58,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:10:58,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:10:58,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 8 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:10:58,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:10:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099935631] [2024-10-14 03:10:58,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099935631] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:10:58,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100861798] [2024-10-14 03:10:58,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:10:58,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:10:58,011 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:10:58,014 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) [2024-10-14 03:10:58,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:10:58,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:10:58,088 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:10:58,093 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:10:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:10:58,222 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-14 03:10:58,434 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-14 03:10:58,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100861798] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-14 03:10:58,434 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-14 03:10:58,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-14 03:10:58,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265012665] [2024-10-14 03:10:58,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-14 03:10:58,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-14 03:10:58,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:10:58,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-14 03:10:58,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-14 03:10:58,437 INFO L87 Difference]: Start difference. First operand 425 states and 558 transitions. Second operand has 15 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2024-10-14 03:10:59,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:10:59,356 INFO L93 Difference]: Finished difference Result 1006 states and 1349 transitions. [2024-10-14 03:10:59,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-14 03:10:59,356 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) Word has length 84 [2024-10-14 03:10:59,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:10:59,357 INFO L225 Difference]: With dead ends: 1006 [2024-10-14 03:10:59,357 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 03:10:59,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 192 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 582 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=451, Invalid=1711, Unknown=0, NotChecked=0, Total=2162 [2024-10-14 03:10:59,360 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 366 mSDsluCounter, 554 mSDsCounter, 0 mSdLazyCounter, 980 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 374 SdHoareTripleChecker+Valid, 674 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-14 03:10:59,360 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [374 Valid, 674 Invalid, 1128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 980 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-14 03:10:59,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 03:10:59,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 03:10:59,361 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) [2024-10-14 03:10:59,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 03:10:59,361 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2024-10-14 03:10:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:10:59,361 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 03:10:59,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 8.545454545454545) internal successors, (94), 10 states have internal predecessors, (94), 6 states have call successors, (24), 7 states have call predecessors, (24), 6 states have return successors, (20), 7 states have call predecessors, (20), 6 states have call successors, (20) [2024-10-14 03:10:59,361 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 03:10:59,361 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 03:10:59,363 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 03:10:59,382 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:10:59,564 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 [2024-10-14 03:10:59,566 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:10:59,568 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 03:11:02,698 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 03:11:02,712 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= 1 |old(~pumpRunning~0)|))) (or (and (= 2 ~waterLevel~0) .cse0 .cse1) (and .cse0 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0) .cse1)))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 (<= ~waterLevel~0 2) (<= 1 ~switchedOnBeforeTS~0)))) [2024-10-14 03:11:02,727 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (= ~switchedOnBeforeTS~0 |old(~switchedOnBeforeTS~0)|) (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse0 (= |old(~pumpRunning~0)| 0)) (.cse1 (<= |old(~waterLevel~0)| 2)) (.cse2 (= 1 ~systemActive~0)) (.cse3 (<= 1 |old(~pumpRunning~0)|))) (or (and .cse0 (= 0 ~systemActive~0) .cse1) (and .cse2 (<= 1 |old(~switchedOnBeforeTS~0)|) .cse1 .cse3) (and .cse2 .cse0 .cse1) (and .cse2 .cse3 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-14 03:11:02,738 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (= |old(~waterLevel~0)| ~waterLevel~0) (let ((.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= |old(~waterLevel~0)| 2)) (.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0))) (or (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) .cse2) (and .cse3 .cse1 .cse2) (and .cse3 (= 0 ~systemActive~0) .cse2) (and .cse0 .cse1 (= |old(~waterLevel~0)| 2))))) Eliminated clause: (let ((.cse0 (<= 1 ~pumpRunning~0)) (.cse1 (= 1 ~systemActive~0)) (.cse3 (= ~pumpRunning~0 0)) (.cse2 (<= ~waterLevel~0 2))) (or (and .cse0 (= 2 ~waterLevel~0) .cse1) (and .cse0 .cse1 .cse2 (<= 1 ~switchedOnBeforeTS~0)) (and .cse3 .cse1 .cse2) (and .cse3 .cse2 (= 0 ~systemActive~0)))) [2024-10-14 03:11:02,743 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and .cse0 (= |old(~pumpRunning~0)| 0) .cse1) (and .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0) (<= 1 |old(~pumpRunning~0)|))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0)) (.cse1 (<= ~waterLevel~0 2))) (or (and (<= 1 ~pumpRunning~0) .cse0 .cse1 (<= 1 ~switchedOnBeforeTS~0)) (and (= ~pumpRunning~0 0) .cse0 .cse1))) [2024-10-14 03:11:02,751 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:11:02 BoogieIcfgContainer [2024-10-14 03:11:02,751 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 03:11:02,752 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 03:11:02,752 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 03:11:02,752 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 03:11:02,752 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:10:54" (3/4) ... [2024-10-14 03:11:02,754 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 03:11:02,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-14 03:11:02,756 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-14 03:11:02,757 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-14 03:11:02,764 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 34 nodes and edges [2024-10-14 03:11:02,764 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-14 03:11:02,764 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 03:11:02,765 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:11:02,765 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:11:02,863 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 03:11:02,863 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 03:11:02,863 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 03:11:02,864 INFO L158 Benchmark]: Toolchain (without parser) took 9006.07ms. Allocated memory was 130.0MB in the beginning and 270.5MB in the end (delta: 140.5MB). Free memory was 58.9MB in the beginning and 168.5MB in the end (delta: -109.7MB). Peak memory consumption was 32.3MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,864 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 03:11:02,864 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.62ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 58.6MB in the beginning and 136.2MB in the end (delta: -77.7MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,864 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 172.0MB. Free memory was 136.2MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,865 INFO L158 Benchmark]: Boogie Preprocessor took 44.22ms. Allocated memory is still 172.0MB. Free memory was 134.2MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,865 INFO L158 Benchmark]: RCFGBuilder took 449.44ms. Allocated memory is still 172.0MB. Free memory was 132.1MB in the beginning and 106.9MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,865 INFO L158 Benchmark]: TraceAbstraction took 7959.17ms. Allocated memory was 172.0MB in the beginning and 270.5MB in the end (delta: 98.6MB). Free memory was 105.8MB in the beginning and 175.9MB in the end (delta: -70.0MB). Peak memory consumption was 125.0MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,865 INFO L158 Benchmark]: Witness Printer took 111.94ms. Allocated memory is still 270.5MB. Free memory was 175.9MB in the beginning and 168.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-14 03:11:02,867 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 130.0MB. Free memory is still 88.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 388.62ms. Allocated memory was 130.0MB in the beginning and 172.0MB in the end (delta: 41.9MB). Free memory was 58.6MB in the beginning and 136.2MB in the end (delta: -77.7MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 172.0MB. Free memory was 136.2MB in the beginning and 134.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 44.22ms. Allocated memory is still 172.0MB. Free memory was 134.2MB in the beginning and 132.1MB in the end (delta: 2.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 449.44ms. Allocated memory is still 172.0MB. Free memory was 132.1MB in the beginning and 106.9MB in the end (delta: 25.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 7959.17ms. Allocated memory was 172.0MB in the beginning and 270.5MB in the end (delta: 98.6MB). Free memory was 105.8MB in the beginning and 175.9MB in the end (delta: -70.0MB). Peak memory consumption was 125.0MB. Max. memory is 16.1GB. * Witness Printer took 111.94ms. Allocated memory is still 270.5MB. Free memory was 175.9MB in the beginning and 168.5MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [49] - GenericResultAtLocation [Line: 415]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [415] - GenericResultAtLocation [Line: 424]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [424] - GenericResultAtLocation [Line: 499]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [499] - GenericResultAtLocation [Line: 730]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [730] - GenericResultAtLocation [Line: 825]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [825] - GenericResultAtLocation [Line: 926]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [926] - GenericResultAtLocation [Line: 975]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [975] * 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: 420]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 83 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.7s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1393 SdHoareTripleChecker+Valid, 1.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1346 mSDsluCounter, 2635 SdHoareTripleChecker+Invalid, 1.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1765 mSDsCounter, 459 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2332 IncrementalHoareTripleChecker+Invalid, 2791 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 459 mSolverCounterUnsat, 870 mSDtfsCounter, 2332 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 379 GetRequests, 278 SyntacticMatches, 4 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 658 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=667occurred in iteration=8, InterpolantAutomatonStates: 96, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 26 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 521 NumberOfCodeBlocks, 521 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 593 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 2 NumberOfNonLiveVariables, 300 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 104/125 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: 440]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 632]: Location Invariant Derived location invariant: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) - InvariantResult [Line: 837]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 441]: Loop Invariant Derived loop invariant: ((((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || ((((pumpRunning == 0) && (waterLevel <= 1)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 624]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) Ensures: ((pumpRunning == 0) && ((((2 == waterLevel) && (1 == systemActive)) && (1 <= \old(pumpRunning))) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 540]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) - ProcedureContractResult [Line: 758]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) - ProcedureContractResult [Line: 827]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 513]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((((1 < \old(waterLevel)) || (waterLevel < 2)) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((((((1 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (((pumpRunning == 0) && (waterLevel <= 1)) && (\old(waterLevel) == waterLevel))) || (\old(pumpRunning) != 0)) || (((pumpRunning == 0) && (2 == waterLevel)) && (\old(waterLevel) == 2)))) && ((pumpRunning == 0) || (0 != systemActive))) && (((((1 == systemActive) && (\old(pumpRunning) == 0)) || ((\old(pumpRunning) == 0) && (0 == systemActive))) || ((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 746]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: ((((2 == waterLevel) || (\old(waterLevel) != 2)) && (waterLevel <= 2)) && (((((((1 <= pumpRunning) && (1 == systemActive)) && (1 <= switchedOnBeforeTS)) && (\old(waterLevel) <= 2)) || (((pumpRunning == 0) && (1 == systemActive)) && (\old(waterLevel) <= 2))) || (((pumpRunning == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2))) || (((1 <= pumpRunning) && (1 == systemActive)) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 548]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: ((((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1)) && (((1 == systemActive) && (\old(pumpRunning) == 0)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && ((((\old(pumpRunning) != 0) || ((1 <= pumpRunning) && (2 == waterLevel))) || ((pumpRunning == 0) && (2 == waterLevel))) || ((pumpRunning == 0) && (waterLevel <= 1)))) - ProcedureContractResult [Line: 643]: Procedure Contract for isPumpRunning Derived contract for procedure isPumpRunning. Requires: ((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) Ensures: (((((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) || ((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) || (((pumpRunning == 0) && (waterLevel <= 2)) && (0 == systemActive))) && (pumpRunning == \result)) - ProcedureContractResult [Line: 632]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) Ensures: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) RESULT: Ultimate proved your program to be correct! [2024-10-14 03:11:02,887 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