./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_spec3_product31.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 02:59:27,082 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 02:59:27,138 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 02:59:27,143 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 02:59:27,145 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 02:59:27,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 02:59:27,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 02:59:27,160 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 02:59:27,160 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 02:59:27,161 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 02:59:27,161 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 02:59:27,161 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 02:59:27,162 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 02:59:27,162 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 02:59:27,162 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 02:59:27,162 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 02:59:27,163 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 02:59:27,163 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 02:59:27,163 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 02:59:27,163 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 02:59:27,163 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 02:59:27,164 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 02:59:27,164 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 02:59:27,164 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 02:59:27,164 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 02:59:27,165 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 02:59:27,165 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 02:59:27,165 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 02:59:27,165 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 02:59:27,165 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 02:59:27,166 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 02:59:27,166 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 02:59:27,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:59:27,166 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 02:59:27,167 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 02:59:27,167 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 02:59:27,167 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 02:59:27,167 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 02:59:27,167 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 02:59:27,168 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 02:59:27,168 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 02:59:27,176 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 02:59:27,176 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b1e1d3e485748d25a44a97cbcf16885148403d3faf86da44fdb361034bb1dc7 [2024-10-11 02:59:27,393 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 02:59:27,414 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 02:59:27,417 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 02:59:27,419 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 02:59:27,419 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 02:59:27,420 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-10-11 02:59:28,672 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 02:59:28,915 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 02:59:28,916 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec3_product31.cil.c [2024-10-11 02:59:28,926 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/cade4e604/cc6c4ade31014d79bb961e34ebd377b9/FLAGf15f955d3 [2024-10-11 02:59:28,937 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/cade4e604/cc6c4ade31014d79bb961e34ebd377b9 [2024-10-11 02:59:28,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 02:59:28,940 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 02:59:28,941 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 02:59:28,941 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 02:59:28,946 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 02:59:28,947 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:59:28" (1/1) ... [2024-10-11 02:59:28,949 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5aa2d086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:28, skipping insertion in model container [2024-10-11 02:59:28,949 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:59:28" (1/1) ... [2024-10-11 02:59:28,982 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 02:59:29,145 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_spec3_product31.cil.c[2984,2997] [2024-10-11 02:59:29,240 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:29,250 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 02:59:29,259 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [49] [2024-10-11 02:59:29,260 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] [2024-10-11 02:59:29,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] [2024-10-11 02:59:29,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] [2024-10-11 02:59:29,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] [2024-10-11 02:59:29,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] [2024-10-11 02:59:29,261 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] [2024-10-11 02:59:29,262 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] [2024-10-11 02:59:29,276 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_spec3_product31.cil.c[2984,2997] [2024-10-11 02:59:29,318 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 02:59:29,340 INFO L204 MainTranslator]: Completed translation [2024-10-11 02:59:29,340 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29 WrapperNode [2024-10-11 02:59:29,340 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 02:59:29,341 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:29,341 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 02:59:29,342 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 02:59:29,347 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,362 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,396 INFO L138 Inliner]: procedures = 55, calls = 102, calls flagged for inlining = 21, calls inlined = 17, statements flattened = 186 [2024-10-11 02:59:29,396 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 02:59:29,397 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 02:59:29,397 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 02:59:29,397 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 02:59:29,406 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,406 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,409 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,432 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]. [2024-10-11 02:59:29,433 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,433 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,436 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,439 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,441 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,442 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 02:59:29,443 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 02:59:29,443 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 02:59:29,443 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 02:59:29,444 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (1/1) ... [2024-10-11 02:59:29,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 02:59:29,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 02:59:29,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 02:59:29,474 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 02:59:29,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-11 02:59:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-11 02:59:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-11 02:59:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-11 02:59:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-11 02:59:29,508 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-11 02:59:29,508 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-11 02:59:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-11 02:59:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-11 02:59:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-11 02:59:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-11 02:59:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 02:59:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-11 02:59:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-11 02:59:29,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 02:59:29,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 02:59:29,569 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 02:59:29,571 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 02:59:29,773 INFO L? ?]: Removed 42 outVars from TransFormulas that were not future-live. [2024-10-11 02:59:29,773 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 02:59:29,829 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 02:59:29,830 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-11 02:59:29,831 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:29 BoogieIcfgContainer [2024-10-11 02:59:29,831 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 02:59:29,833 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 02:59:29,833 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 02:59:29,836 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 02:59:29,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:59:28" (1/3) ... [2024-10-11 02:59:29,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c2ad95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:29, skipping insertion in model container [2024-10-11 02:59:29,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:59:29" (2/3) ... [2024-10-11 02:59:29,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c2ad95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:59:29, skipping insertion in model container [2024-10-11 02:59:29,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:29" (3/3) ... [2024-10-11 02:59:29,838 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product31.cil.c [2024-10-11 02:59:29,852 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 02:59:29,852 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 02:59:29,897 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 02:59:29,905 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;@2b1630a1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 02:59:29,905 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 02:59:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 50 states have (on average 1.52) internal successors, (76), 59 states have internal predecessors, (76), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-11 02:59:29,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-11 02:59:29,920 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:29,921 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:29,921 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:29,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:29,925 INFO L85 PathProgramCache]: Analyzing trace with hash 889899055, now seen corresponding path program 1 times [2024-10-11 02:59:29,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:29,934 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002571899] [2024-10-11 02:59:29,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:29,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,101 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 02:59:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:30,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:30,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002571899] [2024-10-11 02:59:30,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002571899] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:30,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:30,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 02:59:30,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112923086] [2024-10-11 02:59:30,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:30,119 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 02:59:30,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 02:59:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:59:30,142 INFO L87 Difference]: Start difference. First operand has 77 states, 50 states have (on average 1.52) internal successors, (76), 59 states have internal predecessors, (76), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 12 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:30,204 INFO L93 Difference]: Finished difference Result 152 states and 217 transitions. [2024-10-11 02:59:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 02:59:30,207 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-11 02:59:30,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:30,215 INFO L225 Difference]: With dead ends: 152 [2024-10-11 02:59:30,216 INFO L226 Difference]: Without dead ends: 72 [2024-10-11 02:59:30,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 02:59:30,223 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:30,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 88 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:30,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2024-10-11 02:59:30,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2024-10-11 02:59:30,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 47 states have (on average 1.4042553191489362) internal successors, (66), 55 states have internal predecessors, (66), 16 states have call successors, (16), 9 states have call predecessors, (16), 8 states have return successors, (15), 11 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-11 02:59:30,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 97 transitions. [2024-10-11 02:59:30,292 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 97 transitions. Word has length 17 [2024-10-11 02:59:30,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:30,293 INFO L471 AbstractCegarLoop]: Abstraction has 72 states and 97 transitions. [2024-10-11 02:59:30,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,294 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 97 transitions. [2024-10-11 02:59:30,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-11 02:59:30,296 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:30,296 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 02:59:30,297 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:30,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:30,298 INFO L85 PathProgramCache]: Analyzing trace with hash 1969211536, now seen corresponding path program 1 times [2024-10-11 02:59:30,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:30,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282394726] [2024-10-11 02:59:30,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:30,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 02:59:30,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:30,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:30,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282394726] [2024-10-11 02:59:30,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282394726] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:30,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:30,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:30,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423467235] [2024-10-11 02:59:30,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:30,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:30,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:30,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:30,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,389 INFO L87 Difference]: Start difference. First operand 72 states and 97 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:30,417 INFO L93 Difference]: Finished difference Result 114 states and 152 transitions. [2024-10-11 02:59:30,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:30,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-10-11 02:59:30,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:30,419 INFO L225 Difference]: With dead ends: 114 [2024-10-11 02:59:30,419 INFO L226 Difference]: Without dead ends: 64 [2024-10-11 02:59:30,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,420 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 14 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:30,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 131 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:30,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2024-10-11 02:59:30,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2024-10-11 02:59:30,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 42 states have (on average 1.4285714285714286) internal successors, (60), 50 states have internal predecessors, (60), 13 states have call successors, (13), 8 states have call predecessors, (13), 8 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2024-10-11 02:59:30,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2024-10-11 02:59:30,427 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 18 [2024-10-11 02:59:30,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:30,427 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2024-10-11 02:59:30,428 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,428 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2024-10-11 02:59:30,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-10-11 02:59:30,428 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:30,429 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 02:59:30,429 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:30,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:30,430 INFO L85 PathProgramCache]: Analyzing trace with hash 128374679, now seen corresponding path program 1 times [2024-10-11 02:59:30,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:30,430 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040218655] [2024-10-11 02:59:30,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:30,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 02:59:30,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:30,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:30,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040218655] [2024-10-11 02:59:30,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040218655] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:30,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:30,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:30,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890596025] [2024-10-11 02:59:30,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:30,505 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:30,505 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:30,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:30,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,506 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:30,552 INFO L93 Difference]: Finished difference Result 188 states and 255 transitions. [2024-10-11 02:59:30,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:30,552 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-10-11 02:59:30,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:30,554 INFO L225 Difference]: With dead ends: 188 [2024-10-11 02:59:30,554 INFO L226 Difference]: Without dead ends: 126 [2024-10-11 02:59:30,555 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,556 INFO L432 NwaCegarLoop]: 84 mSDtfsCounter, 73 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:30,556 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 156 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:30,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-10-11 02:59:30,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 123. [2024-10-11 02:59:30,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 80 states have (on average 1.4375) internal successors, (115), 95 states have internal predecessors, (115), 26 states have call successors, (26), 16 states have call predecessors, (26), 16 states have return successors, (26), 17 states have call predecessors, (26), 26 states have call successors, (26) [2024-10-11 02:59:30,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 167 transitions. [2024-10-11 02:59:30,572 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 167 transitions. Word has length 21 [2024-10-11 02:59:30,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:30,572 INFO L471 AbstractCegarLoop]: Abstraction has 123 states and 167 transitions. [2024-10-11 02:59:30,572 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,572 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 167 transitions. [2024-10-11 02:59:30,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2024-10-11 02:59:30,573 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:30,574 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 02:59:30,574 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:30,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:30,574 INFO L85 PathProgramCache]: Analyzing trace with hash -1081915056, now seen corresponding path program 1 times [2024-10-11 02:59:30,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:30,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122833575] [2024-10-11 02:59:30,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:30,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-10-11 02:59:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:30,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:30,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122833575] [2024-10-11 02:59:30,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122833575] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:30,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:30,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 02:59:30,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252802144] [2024-10-11 02:59:30,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:30,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 02:59:30,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:30,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 02:59:30,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 02:59:30,655 INFO L87 Difference]: Start difference. First operand 123 states and 167 transitions. Second operand has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:30,726 INFO L93 Difference]: Finished difference Result 355 states and 494 transitions. [2024-10-11 02:59:30,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 02:59:30,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 24 [2024-10-11 02:59:30,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:30,730 INFO L225 Difference]: With dead ends: 355 [2024-10-11 02:59:30,730 INFO L226 Difference]: Without dead ends: 234 [2024-10-11 02:59:30,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 02:59:30,735 INFO L432 NwaCegarLoop]: 71 mSDtfsCounter, 57 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:30,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 211 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:30,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-11 02:59:30,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2024-10-11 02:59:30,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 151 states have (on average 1.4105960264900663) internal successors, (213), 178 states have internal predecessors, (213), 52 states have call successors, (52), 32 states have call predecessors, (52), 30 states have return successors, (54), 32 states have call predecessors, (54), 52 states have call successors, (54) [2024-10-11 02:59:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 319 transitions. [2024-10-11 02:59:30,775 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 319 transitions. Word has length 24 [2024-10-11 02:59:30,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:30,776 INFO L471 AbstractCegarLoop]: Abstraction has 234 states and 319 transitions. [2024-10-11 02:59:30,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,777 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 319 transitions. [2024-10-11 02:59:30,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-10-11 02:59:30,782 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:30,782 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 02:59:30,782 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:30,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:30,783 INFO L85 PathProgramCache]: Analyzing trace with hash -212703957, now seen corresponding path program 1 times [2024-10-11 02:59:30,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:30,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137140554] [2024-10-11 02:59:30,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:30,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 02:59:30,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 02:59:30,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 02:59:30,841 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 02:59:30,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137140554] [2024-10-11 02:59:30,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137140554] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 02:59:30,841 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 02:59:30,841 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 02:59:30,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428932082] [2024-10-11 02:59:30,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 02:59:30,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 02:59:30,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 02:59:30,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 02:59:30,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,846 INFO L87 Difference]: Start difference. First operand 234 states and 319 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 02:59:30,876 INFO L93 Difference]: Finished difference Result 392 states and 536 transitions. [2024-10-11 02:59:30,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 02:59:30,877 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 26 [2024-10-11 02:59:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 02:59:30,878 INFO L225 Difference]: With dead ends: 392 [2024-10-11 02:59:30,878 INFO L226 Difference]: Without dead ends: 160 [2024-10-11 02:59:30,879 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 02:59:30,880 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 41 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 02:59:30,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 42 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 02:59:30,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-10-11 02:59:30,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 158. [2024-10-11 02:59:30,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 111 states have (on average 1.2882882882882882) internal successors, (143), 118 states have internal predecessors, (143), 24 states have call successors, (24), 24 states have call predecessors, (24), 22 states have return successors, (24), 22 states have call predecessors, (24), 24 states have call successors, (24) [2024-10-11 02:59:30,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 191 transitions. [2024-10-11 02:59:30,902 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 191 transitions. Word has length 26 [2024-10-11 02:59:30,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 02:59:30,903 INFO L471 AbstractCegarLoop]: Abstraction has 158 states and 191 transitions. [2024-10-11 02:59:30,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 3 states have internal predecessors, (23), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-11 02:59:30,903 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 191 transitions. [2024-10-11 02:59:30,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-10-11 02:59:30,904 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 02:59:30,904 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 02:59:30,905 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 02:59:30,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 02:59:30,907 INFO L85 PathProgramCache]: Analyzing trace with hash -1856879050, now seen corresponding path program 1 times [2024-10-11 02:59:30,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 02:59:30,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60979421] [2024-10-11 02:59:30,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 02:59:30,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 02:59:30,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 02:59:30,941 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 02:59:30,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 02:59:30,965 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 02:59:30,965 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 02:59:30,966 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-11 02:59:30,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 02:59:30,969 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 02:59:30,998 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-11 02:59:31,000 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:59:30 BoogieIcfgContainer [2024-10-11 02:59:31,000 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-11 02:59:31,000 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-11 02:59:31,000 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-11 02:59:31,001 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-11 02:59:31,001 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:59:29" (3/4) ... [2024-10-11 02:59:31,003 INFO L133 WitnessPrinter]: Generating witness for reachability counterexample [2024-10-11 02:59:31,045 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-11 02:59:31,045 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-11 02:59:31,046 INFO L158 Benchmark]: Toolchain (without parser) took 2105.66ms. Allocated memory is still 169.9MB. Free memory was 137.8MB in the beginning and 129.0MB in the end (delta: 8.9MB). Peak memory consumption was 11.3MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,048 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 02:59:31,048 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.54ms. Allocated memory is still 169.9MB. Free memory was 137.2MB in the beginning and 116.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,048 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.09ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 114.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,048 INFO L158 Benchmark]: Boogie Preprocessor took 45.47ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 111.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,048 INFO L158 Benchmark]: RCFGBuilder took 388.73ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 88.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,049 INFO L158 Benchmark]: TraceAbstraction took 1166.72ms. Allocated memory is still 169.9MB. Free memory was 87.7MB in the beginning and 132.1MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-11 02:59:31,049 INFO L158 Benchmark]: Witness Printer took 45.22ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 129.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-11 02:59:31,050 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 169.9MB. Free memory is still 139.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 399.54ms. Allocated memory is still 169.9MB. Free memory was 137.2MB in the beginning and 116.5MB in the end (delta: 20.7MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.09ms. Allocated memory is still 169.9MB. Free memory was 116.5MB in the beginning and 114.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 45.47ms. Allocated memory is still 169.9MB. Free memory was 114.1MB in the beginning and 111.4MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 388.73ms. Allocated memory is still 169.9MB. Free memory was 111.4MB in the beginning and 88.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1166.72ms. Allocated memory is still 169.9MB. Free memory was 87.7MB in the beginning and 132.1MB in the end (delta: -44.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 45.22ms. Allocated memory is still 169.9MB. Free memory was 132.1MB in the beginning and 129.0MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. 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,"Environment.i","") [49] - GenericResultAtLocation [Line: 145]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [145] - GenericResultAtLocation [Line: 154]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [154] - GenericResultAtLocation [Line: 520]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [520] - GenericResultAtLocation [Line: 590]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [590] - GenericResultAtLocation [Line: 805]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification3_spec.i","") [805] - GenericResultAtLocation [Line: 839]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [839] - GenericResultAtLocation [Line: 877]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [877] * 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 - CounterExampleResult [Line: 150]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L57] int waterLevel = 1; [L58] int methaneLevelCritical = 0; [L324] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L595] int pumpRunning = 0; [L596] int systemActive = 1; [L878] int cleanupTimeShifts = 4; [L951] int retValue_acc ; [L952] int tmp ; [L956] FCALL select_helpers() [L957] FCALL select_features() [L958] CALL, EXPR valid_product() [L869] int retValue_acc ; [L872] retValue_acc = 1 [L873] return (retValue_acc); [L958] RET, EXPR valid_product() [L958] tmp = valid_product() [L960] COND TRUE \read(tmp) [L962] FCALL setup() [L963] CALL runTest() [L945] CALL test() [L525] int splverifierCounter ; [L526] int tmp ; [L527] int tmp___0 ; [L528] int tmp___1 ; [L529] int tmp___2 ; [L532] splverifierCounter = 0 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L534] COND TRUE 1 VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L536] COND TRUE splverifierCounter < 4 [L542] tmp = __VERIFIER_nondet_int() [L544] COND TRUE \read(tmp) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L546] CALL waterRise() VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L75] COND TRUE waterLevel < 2 [L76] waterLevel = waterLevel + 1 VAL [\old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L546] RET waterRise() VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L552] tmp___0 = __VERIFIER_nondet_int() [L554] COND FALSE !(\read(tmp___0)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=2] [L562] tmp___2 = __VERIFIER_nondet_int() [L564] COND FALSE !(\read(tmp___2)) [L568] tmp___1 = __VERIFIER_nondet_int() [L570] COND TRUE \read(tmp___1) [L572] CALL stopSystem() [L794] COND FALSE !(\read(pumpRunning)) VAL [cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L801] systemActive = 0 [L572] RET stopSystem() [L579] CALL timeShift() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L603] COND FALSE !(\read(pumpRunning)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L610] COND FALSE !(\read(systemActive)) VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L618] CALL __utac_acc__Specification3_spec__1() [L807] int tmp ; [L808] int tmp___0 ; [L809] int tmp___1 ; VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] CALL, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L96] int retValue_acc ; [L99] retValue_acc = methaneLevelCritical [L100] return (retValue_acc); [L813] RET, EXPR isMethaneLevelCritical() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] [L813] tmp = isMethaneLevelCritical() [L815] COND FALSE !(\read(tmp)) [L819] CALL, EXPR getWaterLevel() [L128] int retValue_acc ; [L131] retValue_acc = waterLevel [L132] return (retValue_acc); [L819] RET, EXPR getWaterLevel() [L819] tmp___0 = getWaterLevel() [L821] COND TRUE tmp___0 == 2 [L823] CALL, EXPR isPumpRunning() [L727] int retValue_acc ; [L730] retValue_acc = pumpRunning [L731] return (retValue_acc); [L823] RET, EXPR isPumpRunning() [L823] tmp___1 = isPumpRunning() [L825] COND FALSE !(\read(tmp___1)) [L829] CALL __automaton_fail() [L150] reach_error() VAL [\old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=0, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 10 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 189 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 185 mSDsluCounter, 628 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 269 mSDsCounter, 5 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 121 IncrementalHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5 mSolverCounterUnsat, 359 mSDtfsCounter, 121 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=234occurred in iteration=4, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 134 NumberOfCodeBlocks, 134 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 101 ConstructedInterpolants, 0 QuantifiedInterpolants, 191 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 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 RESULT: Ultimate proved your program to be incorrect! [2024-10-11 02:59:31,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE