./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_product64.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d 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_product64.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-12 19:43:09,358 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-12 19:43:09,447 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-12 19:43:09,455 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-12 19:43:09,456 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-12 19:43:09,484 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-12 19:43:09,484 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-12 19:43:09,485 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-12 19:43:09,486 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-12 19:43:09,487 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-12 19:43:09,487 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-12 19:43:09,487 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-12 19:43:09,488 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-12 19:43:09,488 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-12 19:43:09,489 INFO L153 SettingsManager]: * Use SBE=true [2024-10-12 19:43:09,491 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-12 19:43:09,491 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-12 19:43:09,492 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-12 19:43:09,492 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-12 19:43:09,492 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-12 19:43:09,492 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-12 19:43:09,498 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-12 19:43:09,499 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-12 19:43:09,499 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-12 19:43:09,499 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-12 19:43:09,499 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-12 19:43:09,500 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-12 19:43:09,500 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-12 19:43:09,500 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-12 19:43:09,500 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-12 19:43:09,500 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-12 19:43:09,501 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-12 19:43:09,501 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:43:09,501 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-12 19:43:09,501 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-12 19:43:09,501 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-12 19:43:09,502 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-12 19:43:09,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-12 19:43:09,504 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-12 19:43:09,504 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-12 19:43:09,504 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-12 19:43:09,504 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-12 19:43:09,505 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 323b2112d56f35ec9fc5a7837411d8e54d2d46e3d8981d77e080eaf0dd99497b [2024-10-12 19:43:09,769 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-12 19:43:09,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-12 19:43:09,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-12 19:43:09,799 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-12 19:43:09,800 INFO L274 PluginConnector]: CDTParser initialized [2024-10-12 19:43:09,801 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-10-12 19:43:11,284 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 19:43:11,547 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 19:43:11,547 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec5_product64.cil.c [2024-10-12 19:43:11,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f332d93/66259ab8d19343f49291ca5cb60a808b/FLAGc70add5d0 [2024-10-12 19:43:11,574 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/18f332d93/66259ab8d19343f49291ca5cb60a808b [2024-10-12 19:43:11,576 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 19:43:11,577 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 19:43:11,578 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 19:43:11,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 19:43:11,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 19:43:11,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:11" (1/1) ... [2024-10-12 19:43:11,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a55f552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:11, skipping insertion in model container [2024-10-12 19:43:11,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 07:43:11" (1/1) ... [2024-10-12 19:43:11,632 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 19:43:11,909 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_product64.cil.c[9626,9639] [2024-10-12 19:43:11,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:43:12,009 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 19:43:12,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] [2024-10-12 19:43:12,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] [2024-10-12 19:43:12,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] [2024-10-12 19:43:12,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] [2024-10-12 19:43:12,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] [2024-10-12 19:43:12,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] [2024-10-12 19:43:12,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] [2024-10-12 19:43:12,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] [2024-10-12 19:43:12,055 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_product64.cil.c[9626,9639] [2024-10-12 19:43:12,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 19:43:12,107 INFO L204 MainTranslator]: Completed translation [2024-10-12 19:43:12,108 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12 WrapperNode [2024-10-12 19:43:12,108 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 19:43:12,108 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 19:43:12,109 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 19:43:12,109 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 19:43:12,116 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,135 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,171 INFO L138 Inliner]: procedures = 61, calls = 110, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 249 [2024-10-12 19:43:12,171 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 19:43:12,176 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 19:43:12,176 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 19:43:12,176 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 19:43:12,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,193 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,199 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,231 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]. [2024-10-12 19:43:12,235 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,236 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,244 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,252 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,258 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,259 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,266 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 19:43:12,267 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 19:43:12,269 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 19:43:12,269 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 19:43:12,270 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (1/1) ... [2024-10-12 19:43:12,280 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 19:43:12,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:43:12,314 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) [2024-10-12 19:43:12,322 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 [2024-10-12 19:43:12,373 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 19:43:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-12 19:43:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-12 19:43:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-12 19:43:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-12 19:43:12,374 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-12 19:43:12,374 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-12 19:43:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:12,375 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-12 19:43:12,375 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-12 19:43:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:43:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:43:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2024-10-12 19:43:12,376 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2024-10-12 19:43:12,376 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-12 19:43:12,377 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-12 19:43:12,377 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-12 19:43:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-12 19:43:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 19:43:12,378 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-12 19:43:12,378 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-12 19:43:12,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 19:43:12,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 19:43:12,452 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 19:43:12,454 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 19:43:12,783 INFO L? ?]: Removed 52 outVars from TransFormulas that were not future-live. [2024-10-12 19:43:12,783 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 19:43:12,856 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 19:43:12,856 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-12 19:43:12,857 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:12 BoogieIcfgContainer [2024-10-12 19:43:12,857 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 19:43:12,859 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 19:43:12,859 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 19:43:12,863 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 19:43:12,864 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 07:43:11" (1/3) ... [2024-10-12 19:43:12,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4ab431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:43:12, skipping insertion in model container [2024-10-12 19:43:12,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 07:43:12" (2/3) ... [2024-10-12 19:43:12,865 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4ab431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 07:43:12, skipping insertion in model container [2024-10-12 19:43:12,865 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:12" (3/3) ... [2024-10-12 19:43:12,866 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product64.cil.c [2024-10-12 19:43:12,880 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 19:43:12,880 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-12 19:43:12,939 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 19:43:12,950 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;@5175d1bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 19:43:12,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-12 19:43:12,955 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 62 states have (on average 1.5) internal successors, (93), 73 states have internal predecessors, (93), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-10-12 19:43:12,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-10-12 19:43:12,964 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:12,964 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] [2024-10-12 19:43:12,965 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:12,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:12,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1707050728, now seen corresponding path program 1 times [2024-10-12 19:43:12,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:12,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926191940] [2024-10-12 19:43:12,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:12,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:13,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:13,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:43:13,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:13,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:13,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926191940] [2024-10-12 19:43:13,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926191940] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:13,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:13,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 19:43:13,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373874792] [2024-10-12 19:43:13,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:13,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-12 19:43:13,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:13,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-12 19:43:13,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-12 19:43:13,218 INFO L87 Difference]: Start difference. First operand has 93 states, 62 states have (on average 1.5) internal successors, (93), 73 states have internal predecessors, (93), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) Second operand has 2 states, 2 states have (on average 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) [2024-10-12 19:43:13,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:13,307 INFO L93 Difference]: Finished difference Result 184 states and 263 transitions. [2024-10-12 19:43:13,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-12 19:43:13,309 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 [2024-10-12 19:43:13,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:13,317 INFO L225 Difference]: With dead ends: 184 [2024-10-12 19:43:13,317 INFO L226 Difference]: Without dead ends: 88 [2024-10-12 19:43:13,321 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 [2024-10-12 19:43:13,325 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:13,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 108 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:43:13,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-12 19:43:13,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-10-12 19:43:13,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 59 states have (on average 1.4067796610169492) internal successors, (83), 69 states have internal predecessors, (83), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-12 19:43:13,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 120 transitions. [2024-10-12 19:43:13,368 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 120 transitions. Word has length 22 [2024-10-12 19:43:13,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:13,368 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 120 transitions. [2024-10-12 19:43:13,369 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) [2024-10-12 19:43:13,369 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 120 transitions. [2024-10-12 19:43:13,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-10-12 19:43:13,371 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:13,371 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] [2024-10-12 19:43:13,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-12 19:43:13,372 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:13,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:13,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1331224265, now seen corresponding path program 1 times [2024-10-12 19:43:13,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:13,373 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671837380] [2024-10-12 19:43:13,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:13,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:13,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:13,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:43:13,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,507 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:13,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:13,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671837380] [2024-10-12 19:43:13,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671837380] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:13,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:13,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:43:13,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729629682] [2024-10-12 19:43:13,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:13,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:43:13,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:13,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:43:13,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:13,512 INFO L87 Difference]: Start difference. First operand 88 states and 120 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) [2024-10-12 19:43:13,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:13,582 INFO L93 Difference]: Finished difference Result 146 states and 198 transitions. [2024-10-12 19:43:13,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:43:13,582 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 [2024-10-12 19:43:13,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:13,584 INFO L225 Difference]: With dead ends: 146 [2024-10-12 19:43:13,584 INFO L226 Difference]: Without dead ends: 80 [2024-10-12 19:43:13,585 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 [2024-10-12 19:43:13,586 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 14 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:13,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 172 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-12 19:43:13,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2024-10-12 19:43:13,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2024-10-12 19:43:13,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 54 states have (on average 1.4259259259259258) internal successors, (77), 64 states have internal predecessors, (77), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-12 19:43:13,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 109 transitions. [2024-10-12 19:43:13,605 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 109 transitions. Word has length 23 [2024-10-12 19:43:13,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:13,606 INFO L471 AbstractCegarLoop]: Abstraction has 80 states and 109 transitions. [2024-10-12 19:43:13,606 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) [2024-10-12 19:43:13,606 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 109 transitions. [2024-10-12 19:43:13,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-12 19:43:13,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:13,611 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] [2024-10-12 19:43:13,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 19:43:13,612 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:13,612 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:13,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2038534613, now seen corresponding path program 1 times [2024-10-12 19:43:13,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:13,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429281334] [2024-10-12 19:43:13,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:13,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:13,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-12 19:43:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:13,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:13,746 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429281334] [2024-10-12 19:43:13,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429281334] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:13,747 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:13,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 19:43:13,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163458348] [2024-10-12 19:43:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:13,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 19:43:13,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:13,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 19:43:13,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 19:43:13,753 INFO L87 Difference]: Start difference. First operand 80 states and 109 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) [2024-10-12 19:43:13,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:13,861 INFO L93 Difference]: Finished difference Result 236 states and 324 transitions. [2024-10-12 19:43:13,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 19:43:13,862 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 [2024-10-12 19:43:13,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:13,864 INFO L225 Difference]: With dead ends: 236 [2024-10-12 19:43:13,864 INFO L226 Difference]: Without dead ends: 158 [2024-10-12 19:43:13,865 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 [2024-10-12 19:43:13,866 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 100 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:13,867 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [100 Valid, 201 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-12 19:43:13,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2024-10-12 19:43:13,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2024-10-12 19:43:13,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 104 states have (on average 1.4326923076923077) internal successors, (149), 123 states have internal predecessors, (149), 32 states have call successors, (32), 18 states have call predecessors, (32), 18 states have return successors, (32), 21 states have call predecessors, (32), 32 states have call successors, (32) [2024-10-12 19:43:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 213 transitions. [2024-10-12 19:43:13,895 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 213 transitions. Word has length 26 [2024-10-12 19:43:13,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:13,897 INFO L471 AbstractCegarLoop]: Abstraction has 155 states and 213 transitions. [2024-10-12 19:43:13,898 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) [2024-10-12 19:43:13,898 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 213 transitions. [2024-10-12 19:43:13,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-10-12 19:43:13,899 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:13,900 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] [2024-10-12 19:43:13,900 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 19:43:13,900 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:13,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:13,901 INFO L85 PathProgramCache]: Analyzing trace with hash 17155639, now seen corresponding path program 1 times [2024-10-12 19:43:13,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:13,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162005408] [2024-10-12 19:43:13,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:13,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:13,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-12 19:43:14,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:43:14,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-12 19:43:14,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:14,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162005408] [2024-10-12 19:43:14,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [162005408] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:14,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:14,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-12 19:43:14,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882381689] [2024-10-12 19:43:14,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:14,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-12 19:43:14,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:14,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-12 19:43:14,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-12 19:43:14,106 INFO L87 Difference]: Start difference. First operand 155 states and 213 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) [2024-10-12 19:43:14,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:14,342 INFO L93 Difference]: Finished difference Result 402 states and 561 transitions. [2024-10-12 19:43:14,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:43:14,342 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 [2024-10-12 19:43:14,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:14,345 INFO L225 Difference]: With dead ends: 402 [2024-10-12 19:43:14,350 INFO L226 Difference]: Without dead ends: 249 [2024-10-12 19:43:14,352 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 [2024-10-12 19:43:14,357 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 58 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:14,357 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 399 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:14,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2024-10-12 19:43:14,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 248. [2024-10-12 19:43:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 171 states have (on average 1.3508771929824561) internal successors, (231), 190 states have internal predecessors, (231), 42 states have call successors, (42), 34 states have call predecessors, (42), 34 states have return successors, (54), 37 states have call predecessors, (54), 42 states have call successors, (54) [2024-10-12 19:43:14,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 327 transitions. [2024-10-12 19:43:14,410 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 327 transitions. Word has length 29 [2024-10-12 19:43:14,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:14,410 INFO L471 AbstractCegarLoop]: Abstraction has 248 states and 327 transitions. [2024-10-12 19:43:14,411 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) [2024-10-12 19:43:14,411 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 327 transitions. [2024-10-12 19:43:14,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-12 19:43:14,413 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:14,413 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, 1] [2024-10-12 19:43:14,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-12 19:43:14,417 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:14,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:14,417 INFO L85 PathProgramCache]: Analyzing trace with hash 488870070, now seen corresponding path program 1 times [2024-10-12 19:43:14,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:14,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002178708] [2024-10-12 19:43:14,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:14,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:14,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:14,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:14,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:14,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:14,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:43:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:14,576 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:14,576 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002178708] [2024-10-12 19:43:14,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002178708] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:14,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:14,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:43:14,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654307722] [2024-10-12 19:43:14,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:14,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:43:14,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:14,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:43:14,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:43:14,582 INFO L87 Difference]: Start difference. First operand 248 states and 327 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:43:14,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:14,796 INFO L93 Difference]: Finished difference Result 546 states and 741 transitions. [2024-10-12 19:43:14,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:43:14,797 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-10-12 19:43:14,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:14,800 INFO L225 Difference]: With dead ends: 546 [2024-10-12 19:43:14,801 INFO L226 Difference]: Without dead ends: 300 [2024-10-12 19:43:14,806 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:14,810 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 60 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:14,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 241 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-12 19:43:14,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 298. [2024-10-12 19:43:14,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 207 states have (on average 1.328502415458937) internal successors, (275), 226 states have internal predecessors, (275), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-12 19:43:14,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 389 transitions. [2024-10-12 19:43:14,863 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 389 transitions. Word has length 49 [2024-10-12 19:43:14,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:14,864 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 389 transitions. [2024-10-12 19:43:14,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:43:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 389 transitions. [2024-10-12 19:43:14,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-12 19:43:14,866 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:14,866 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, 1] [2024-10-12 19:43:14,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-12 19:43:14,866 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:14,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:14,867 INFO L85 PathProgramCache]: Analyzing trace with hash -1316568264, now seen corresponding path program 1 times [2024-10-12 19:43:14,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:14,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705586011] [2024-10-12 19:43:14,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:14,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:14,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:14,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:14,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:14,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:43:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:15,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:15,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705586011] [2024-10-12 19:43:15,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705586011] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:15,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:15,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:43:15,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008050033] [2024-10-12 19:43:15,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:15,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:43:15,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:15,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:43:15,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:43:15,043 INFO L87 Difference]: Start difference. First operand 298 states and 389 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:43:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:15,246 INFO L93 Difference]: Finished difference Result 600 states and 807 transitions. [2024-10-12 19:43:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-12 19:43:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 49 [2024-10-12 19:43:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:15,250 INFO L225 Difference]: With dead ends: 600 [2024-10-12 19:43:15,250 INFO L226 Difference]: Without dead ends: 304 [2024-10-12 19:43:15,255 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:15,256 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 60 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:15,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 239 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-12 19:43:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2024-10-12 19:43:15,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 302. [2024-10-12 19:43:15,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 211 states have (on average 1.3222748815165877) internal successors, (279), 230 states have internal predecessors, (279), 46 states have call successors, (46), 34 states have call predecessors, (46), 44 states have return successors, (68), 49 states have call predecessors, (68), 46 states have call successors, (68) [2024-10-12 19:43:15,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 393 transitions. [2024-10-12 19:43:15,292 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 393 transitions. Word has length 49 [2024-10-12 19:43:15,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:15,293 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 393 transitions. [2024-10-12 19:43:15,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-12 19:43:15,293 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 393 transitions. [2024-10-12 19:43:15,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-10-12 19:43:15,295 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:15,295 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, 1] [2024-10-12 19:43:15,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 19:43:15,295 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:15,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:15,296 INFO L85 PathProgramCache]: Analyzing trace with hash -1176019654, now seen corresponding path program 1 times [2024-10-12 19:43:15,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:15,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796959701] [2024-10-12 19:43:15,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:15,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:15,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-12 19:43:15,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-12 19:43:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,405 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:15,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,409 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-10-12 19:43:15,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,415 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:15,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:15,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796959701] [2024-10-12 19:43:15,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796959701] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:15,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:15,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-12 19:43:15,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877633059] [2024-10-12 19:43:15,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:15,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 19:43:15,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:15,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 19:43:15,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-12 19:43:15,421 INFO L87 Difference]: Start difference. First operand 302 states and 393 transitions. Second operand has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:43:15,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:15,755 INFO L93 Difference]: Finished difference Result 860 states and 1163 transitions. [2024-10-12 19:43:15,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 19:43:15,755 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) Word has length 49 [2024-10-12 19:43:15,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:15,760 INFO L225 Difference]: With dead ends: 860 [2024-10-12 19:43:15,760 INFO L226 Difference]: Without dead ends: 560 [2024-10-12 19:43:15,762 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:15,763 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 221 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 229 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:15,763 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [229 Valid, 253 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:43:15,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states. [2024-10-12 19:43:15,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 554. [2024-10-12 19:43:15,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 554 states, 389 states have (on average 1.275064267352185) internal successors, (496), 417 states have internal predecessors, (496), 87 states have call successors, (87), 71 states have call predecessors, (87), 77 states have return successors, (139), 88 states have call predecessors, (139), 87 states have call successors, (139) [2024-10-12 19:43:15,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 722 transitions. [2024-10-12 19:43:15,823 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 722 transitions. Word has length 49 [2024-10-12 19:43:15,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:15,823 INFO L471 AbstractCegarLoop]: Abstraction has 554 states and 722 transitions. [2024-10-12 19:43:15,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.4) internal successors, (37), 4 states have internal predecessors, (37), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-12 19:43:15,824 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 722 transitions. [2024-10-12 19:43:15,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-10-12 19:43:15,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:15,826 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, 1, 1, 1, 1, 1] [2024-10-12 19:43:15,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 19:43:15,826 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:15,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:15,827 INFO L85 PathProgramCache]: Analyzing trace with hash -986343276, now seen corresponding path program 1 times [2024-10-12 19:43:15,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:15,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708272826] [2024-10-12 19:43:15,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:15,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:15,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:15,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:15,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-10-12 19:43:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-10-12 19:43:16,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:16,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:16,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-12 19:43:16,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,049 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 19:43:16,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:16,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708272826] [2024-10-12 19:43:16,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708272826] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:16,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:16,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-12 19:43:16,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567257988] [2024-10-12 19:43:16,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:16,050 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-12 19:43:16,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:16,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-12 19:43:16,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-10-12 19:43:16,051 INFO L87 Difference]: Start difference. First operand 554 states and 722 transitions. Second operand has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-12 19:43:16,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:16,837 INFO L93 Difference]: Finished difference Result 1459 states and 2020 transitions. [2024-10-12 19:43:16,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-12 19:43:16,838 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 53 [2024-10-12 19:43:16,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:16,845 INFO L225 Difference]: With dead ends: 1459 [2024-10-12 19:43:16,845 INFO L226 Difference]: Without dead ends: 1007 [2024-10-12 19:43:16,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=125, Invalid=337, Unknown=0, NotChecked=0, Total=462 [2024-10-12 19:43:16,849 INFO L432 NwaCegarLoop]: 76 mSDtfsCounter, 503 mSDsluCounter, 260 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 222 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 511 SdHoareTripleChecker+Valid, 336 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 222 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:16,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [511 Valid, 336 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [222 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-12 19:43:16,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1007 states. [2024-10-12 19:43:16,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1007 to 932. [2024-10-12 19:43:16,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 932 states, 652 states have (on average 1.2760736196319018) internal successors, (832), 706 states have internal predecessors, (832), 148 states have call successors, (148), 112 states have call predecessors, (148), 131 states have return successors, (238), 147 states have call predecessors, (238), 148 states have call successors, (238) [2024-10-12 19:43:16,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 932 states to 932 states and 1218 transitions. [2024-10-12 19:43:16,944 INFO L78 Accepts]: Start accepts. Automaton has 932 states and 1218 transitions. Word has length 53 [2024-10-12 19:43:16,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:16,944 INFO L471 AbstractCegarLoop]: Abstraction has 932 states and 1218 transitions. [2024-10-12 19:43:16,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.333333333333333) internal successors, (39), 7 states have internal predecessors, (39), 5 states have call successors, (7), 4 states have call predecessors, (7), 3 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-12 19:43:16,945 INFO L276 IsEmpty]: Start isEmpty. Operand 932 states and 1218 transitions. [2024-10-12 19:43:16,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-10-12 19:43:16,948 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:16,948 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, 1, 1, 1, 1, 1] [2024-10-12 19:43:16,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 19:43:16,949 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:16,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:16,949 INFO L85 PathProgramCache]: Analyzing trace with hash -164814398, now seen corresponding path program 1 times [2024-10-12 19:43:16,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:16,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728130435] [2024-10-12 19:43:16,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:16,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:16,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:16,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:16,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-12 19:43:17,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:43:17,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:17,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:17,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:17,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-10-12 19:43:17,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,037 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:43:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,040 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-10-12 19:43:17,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:17,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728130435] [2024-10-12 19:43:17,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728130435] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 19:43:17,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 19:43:17,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-12 19:43:17,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802342600] [2024-10-12 19:43:17,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 19:43:17,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-12 19:43:17,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:17,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-12 19:43:17,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-12 19:43:17,044 INFO L87 Difference]: Start difference. First operand 932 states and 1218 transitions. Second operand has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-12 19:43:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:17,488 INFO L93 Difference]: Finished difference Result 1569 states and 2041 transitions. [2024-10-12 19:43:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-12 19:43:17,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 78 [2024-10-12 19:43:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:17,493 INFO L225 Difference]: With dead ends: 1569 [2024-10-12 19:43:17,493 INFO L226 Difference]: Without dead ends: 639 [2024-10-12 19:43:17,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=127, Unknown=0, NotChecked=0, Total=182 [2024-10-12 19:43:17,496 INFO L432 NwaCegarLoop]: 82 mSDtfsCounter, 235 mSDsluCounter, 168 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:17,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 250 Invalid, 428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-12 19:43:17,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 639 states. [2024-10-12 19:43:17,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 639 to 555. [2024-10-12 19:43:17,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 555 states, 391 states have (on average 1.258312020460358) internal successors, (492), 424 states have internal predecessors, (492), 87 states have call successors, (87), 66 states have call predecessors, (87), 76 states have return successors, (130), 86 states have call predecessors, (130), 87 states have call successors, (130) [2024-10-12 19:43:17,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 555 states to 555 states and 709 transitions. [2024-10-12 19:43:17,550 INFO L78 Accepts]: Start accepts. Automaton has 555 states and 709 transitions. Word has length 78 [2024-10-12 19:43:17,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:17,551 INFO L471 AbstractCegarLoop]: Abstraction has 555 states and 709 transitions. [2024-10-12 19:43:17,551 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 9.833333333333334) internal successors, (59), 4 states have internal predecessors, (59), 4 states have call successors, (9), 5 states have call predecessors, (9), 2 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-10-12 19:43:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 555 states and 709 transitions. [2024-10-12 19:43:17,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2024-10-12 19:43:17,554 INFO L207 NwaCegarLoop]: Found error trace [2024-10-12 19:43:17,554 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:43:17,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 19:43:17,554 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-12 19:43:17,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 19:43:17,555 INFO L85 PathProgramCache]: Analyzing trace with hash 205241619, now seen corresponding path program 1 times [2024-10-12 19:43:17,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 19:43:17,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314651020] [2024-10-12 19:43:17,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:17,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 19:43:17,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,703 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-12 19:43:17,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-12 19:43:17,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-12 19:43:17,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:17,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-12 19:43:17,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-12 19:43:17,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-10-12 19:43:17,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,787 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-10-12 19:43:17,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-12 19:43:17,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-12 19:43:17,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-12 19:43:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 13 proven. 10 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 19:43:17,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 19:43:17,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314651020] [2024-10-12 19:43:17,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314651020] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 19:43:17,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [586053023] [2024-10-12 19:43:17,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 19:43:17,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 19:43:17,809 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 19:43:17,811 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) [2024-10-12 19:43:17,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 19:43:17,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 19:43:17,911 INFO L255 TraceCheckSpWp]: Trace formula consists of 332 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-12 19:43:17,919 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 19:43:18,079 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 19:43:18,079 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 19:43:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 8 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-12 19:43:18,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [586053023] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 19:43:18,331 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 19:43:18,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 6, 6] total 15 [2024-10-12 19:43:18,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931196940] [2024-10-12 19:43:18,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 19:43:18,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-12 19:43:18,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 19:43:18,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-12 19:43:18,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-10-12 19:43:18,333 INFO L87 Difference]: Start difference. First operand 555 states and 709 transitions. Second operand has 15 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2024-10-12 19:43:19,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-12 19:43:19,738 INFO L93 Difference]: Finished difference Result 1211 states and 1590 transitions. [2024-10-12 19:43:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-10-12 19:43:19,739 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) Word has length 97 [2024-10-12 19:43:19,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-12 19:43:19,743 INFO L225 Difference]: With dead ends: 1211 [2024-10-12 19:43:19,744 INFO L226 Difference]: Without dead ends: 0 [2024-10-12 19:43:19,747 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 273 GetRequests, 224 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 579 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=451, Invalid=1711, Unknown=0, NotChecked=0, Total=2162 [2024-10-12 19:43:19,748 INFO L432 NwaCegarLoop]: 120 mSDtfsCounter, 477 mSDsluCounter, 546 mSDsCounter, 0 mSdLazyCounter, 1144 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 1364 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-12 19:43:19,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 666 Invalid, 1364 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1144 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-12 19:43:19,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-12 19:43:19,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-12 19:43:19,750 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) [2024-10-12 19:43:19,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-12 19:43:19,751 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 97 [2024-10-12 19:43:19,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-12 19:43:19,752 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-12 19:43:19,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 9.909090909090908) internal successors, (109), 10 states have internal predecessors, (109), 6 states have call successors, (29), 7 states have call predecessors, (29), 6 states have return successors, (23), 7 states have call predecessors, (23), 6 states have call successors, (23) [2024-10-12 19:43:19,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-12 19:43:19,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-12 19:43:19,755 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-12 19:43:19,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 19:43:19,956 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 [2024-10-12 19:43:19,958 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 19:43:19,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-12 19:43:24,732 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-12 19:43:24,756 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)))) [2024-10-12 19:43:24,773 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)))) [2024-10-12 19:43:24,783 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor 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))) [2024-10-12 19:43:24,790 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)))) [2024-10-12 19:43:24,796 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))) [2024-10-12 19:43:24,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.10 07:43:24 BoogieIcfgContainer [2024-10-12 19:43:24,824 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-12 19:43:24,825 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-12 19:43:24,825 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-12 19:43:24,825 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-12 19:43:24,826 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 07:43:12" (3/4) ... [2024-10-12 19:43:24,828 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-12 19:43:24,832 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-12 19:43:24,833 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-12 19:43:24,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-12 19:43:24,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isPumpRunning [2024-10-12 19:43:24,834 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-12 19:43:24,845 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2024-10-12 19:43:24,846 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-12 19:43:24,847 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-12 19:43:24,847 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:43:24,847 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-12 19:43:24,985 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-12 19:43:24,985 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-12 19:43:24,985 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-12 19:43:24,986 INFO L158 Benchmark]: Toolchain (without parser) took 13409.10ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 92.7MB in the beginning and 189.9MB in the end (delta: -97.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:43:24,986 INFO L158 Benchmark]: CDTParser took 0.60ms. Allocated memory is still 115.3MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-12 19:43:24,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 530.03ms. Allocated memory is still 161.5MB. Free memory was 92.3MB in the beginning and 70.4MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.02ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,988 INFO L158 Benchmark]: Boogie Preprocessor took 90.29ms. Allocated memory is still 161.5MB. Free memory was 67.9MB in the beginning and 65.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,989 INFO L158 Benchmark]: RCFGBuilder took 590.21ms. Allocated memory is still 161.5MB. Free memory was 65.4MB in the beginning and 118.9MB in the end (delta: -53.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,989 INFO L158 Benchmark]: TraceAbstraction took 11965.56ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 118.0MB in the beginning and 198.3MB in the end (delta: -80.2MB). Peak memory consumption was 129.4MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,990 INFO L158 Benchmark]: Witness Printer took 160.33ms. Allocated memory is still 234.9MB. Free memory was 198.3MB in the beginning and 189.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-12 19:43:24,991 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60ms. Allocated memory is still 115.3MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 530.03ms. Allocated memory is still 161.5MB. Free memory was 92.3MB in the beginning and 70.4MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.02ms. Allocated memory is still 161.5MB. Free memory was 70.4MB in the beginning and 67.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 90.29ms. Allocated memory is still 161.5MB. Free memory was 67.9MB in the beginning and 65.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 590.21ms. Allocated memory is still 161.5MB. Free memory was 65.4MB in the beginning and 118.9MB in the end (delta: -53.4MB). Peak memory consumption was 20.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11965.56ms. Allocated memory was 161.5MB in the beginning and 234.9MB in the end (delta: 73.4MB). Free memory was 118.0MB in the beginning and 198.3MB in the end (delta: -80.2MB). Peak memory consumption was 129.4MB. Max. memory is 16.1GB. * Witness Printer took 160.33ms. Allocated memory is still 234.9MB. Free memory was 198.3MB in the beginning and 189.9MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification5_spec.i","") [49] - GenericResultAtLocation [Line: 101]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [101] - GenericResultAtLocation [Line: 176]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [176] - GenericResultAtLocation [Line: 450]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [450] - GenericResultAtLocation [Line: 553]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [553] - GenericResultAtLocation [Line: 653]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [653] - GenericResultAtLocation [Line: 662]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [662] - GenericResultAtLocation [Line: 697]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [697] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 658]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 11 procedures, 93 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.0s, OverallIterations: 10, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1778 SdHoareTripleChecker+Valid, 2.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1728 mSDsluCounter, 2865 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1922 mSDsCounter, 652 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2778 IncrementalHoareTripleChecker+Invalid, 3430 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 652 mSolverCounterUnsat, 943 mSDtfsCounter, 2778 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 324 SyntacticMatches, 5 SemanticMatches, 101 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 696 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=932occurred in iteration=8, InterpolantAutomatonStates: 100, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 10 MinimizatonAttempts, 173 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 572 NumberOfCodeBlocks, 572 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 657 ConstructedInterpolants, 0 QuantifiedInterpolants, 1231 SizeOfPredicates, 2 NumberOfNonLiveVariables, 332 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 12 InterpolantComputations, 9 PerfectInterpolantSequences, 110/137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 565]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 333]: Location Invariant Derived location invariant: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (2 == waterLevel)) && (1 == systemActive))) - InvariantResult [Line: 117]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: (((((((pumpRunning == 0) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (0 == systemActive)) || ((((pumpRunning == 0) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2))) || ((((1 <= pumpRunning) && (2 == waterLevel)) && (1 == systemActive)) && (splverifierCounter == 0))) || (((((1 <= pumpRunning) && (1 == systemActive)) && (splverifierCounter == 0)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS))) - ProcedureContractResult [Line: 325]: 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: 215]: 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: 477]: 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: 555]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 188]: 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 <= pumpRunning) && (2 == waterLevel)) && (\old(waterLevel) == 2)) || (\old(pumpRunning) != 0)) || ((pumpRunning == 0) && (\old(waterLevel) == waterLevel))) && (((((pumpRunning == 0) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (\old(pumpRunning) < 1)) || (((pumpRunning == \old(pumpRunning)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)))) && ((pumpRunning == 0) || (0 != systemActive))) && (((\old(waterLevel) != 2) || (\old(pumpRunning) < 1)) || (waterLevel == 1))) && ((((((\old(pumpRunning) == 0) && (0 == systemActive)) && (\old(waterLevel) <= 2)) || ((((1 == systemActive) && (1 <= \old(switchedOnBeforeTS))) && (\old(waterLevel) <= 2)) && (1 <= \old(pumpRunning)))) || (((1 == systemActive) && (\old(pumpRunning) == 0)) && (\old(waterLevel) <= 2))) || (((1 == systemActive) && (1 <= \old(pumpRunning))) && (\old(waterLevel) == 2)))) - ProcedureContractResult [Line: 223]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((((1 <= pumpRunning) && (1 == systemActive)) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) || (((pumpRunning == 0) && (1 == systemActive)) && (waterLevel <= 2))) Ensures: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((pumpRunning == \old(pumpRunning)) || (\old(pumpRunning) < 1))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) - ProcedureContractResult [Line: 465]: 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)) && ((2 == waterLevel) || (\old(waterLevel) != 1))) && (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: 249]: 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: (((((\old(pumpRunning) != 0) || (pumpRunning == 0)) || ((1 <= pumpRunning) && (2 == waterLevel))) && ((((1 == systemActive) && (\old(pumpRunning) == 0)) && (waterLevel <= 2)) || ((((1 == systemActive) && (waterLevel <= 2)) && (1 <= switchedOnBeforeTS)) && (1 <= \old(pumpRunning))))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (\old(pumpRunning) < 1))) - ProcedureContractResult [Line: 344]: 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: 333]: 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! [2024-10-12 19:43:25,024 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