./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/minepump_spec2_product63.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 bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 15:14:27,149 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 15:14:27,211 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 15:14:27,217 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 15:14:27,217 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 15:14:27,239 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 15:14:27,239 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 15:14:27,240 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 15:14:27,240 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 15:14:27,241 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 15:14:27,241 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 15:14:27,241 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 15:14:27,242 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 15:14:27,242 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 15:14:27,244 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 15:14:27,244 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 15:14:27,244 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 15:14:27,245 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 15:14:27,245 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 15:14:27,245 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 15:14:27,245 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 15:14:27,248 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 15:14:27,248 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 15:14:27,248 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 15:14:27,248 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 15:14:27,249 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 15:14:27,249 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 15:14:27,249 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 15:14:27,249 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 15:14:27,249 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:27,250 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 15:14:27,250 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 15:14:27,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 15:14:27,251 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 15:14:27,251 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 15:14:27,251 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 15:14:27,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 15:14:27,252 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bff509ff7af2b9788fd6216f7196709183d48c973cf9a066c9793f96467b2abf [2024-11-08 15:14:27,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 15:14:27,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 15:14:27,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 15:14:27,477 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 15:14:27,478 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 15:14:27,478 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-08 15:14:28,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 15:14:28,849 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 15:14:28,849 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c [2024-11-08 15:14:28,859 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd754074a/f55a3ba8515a45f7895febafc76d6151/FLAG041ac13fe [2024-11-08 15:14:28,869 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dd754074a/f55a3ba8515a45f7895febafc76d6151 [2024-11-08 15:14:28,871 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 15:14:28,872 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 15:14:28,873 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:28,873 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 15:14:28,880 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 15:14:28,880 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:28" (1/1) ... [2024-11-08 15:14:28,881 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cfd6b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:28, skipping insertion in model container [2024-11-08 15:14:28,881 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 03:14:28" (1/1) ... [2024-11-08 15:14:28,919 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 15:14:29,070 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2024-11-08 15:14:29,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:29,154 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 15:14:29,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [49] [2024-11-08 15:14:29,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] [2024-11-08 15:14:29,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] [2024-11-08 15:14:29,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] [2024-11-08 15:14:29,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] [2024-11-08 15:14:29,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] [2024-11-08 15:14:29,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] [2024-11-08 15:14:29,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] [2024-11-08 15:14:29,179 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product63.cil.c[2985,2998] [2024-11-08 15:14:29,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 15:14:29,255 INFO L204 MainTranslator]: Completed translation [2024-11-08 15:14:29,256 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29 WrapperNode [2024-11-08 15:14:29,256 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 15:14:29,257 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:29,257 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 15:14:29,257 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 15:14:29,262 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,276 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,295 INFO L138 Inliner]: procedures = 59, calls = 107, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 228 [2024-11-08 15:14:29,297 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 15:14:29,298 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 15:14:29,298 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 15:14:29,298 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 15:14:29,306 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,317 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-08 15:14:29,318 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,318 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,322 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,329 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,330 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,334 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,336 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 15:14:29,336 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 15:14:29,336 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 15:14:29,337 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 15:14:29,337 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (1/1) ... [2024-11-08 15:14:29,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 15:14:29,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:29,367 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-08 15:14:29,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-08 15:14:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 15:14:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-11-08 15:14:29,411 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-11-08 15:14:29,411 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-11-08 15:14:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-11-08 15:14:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-08 15:14:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-08 15:14:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-08 15:14:29,412 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-08 15:14:29,412 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-11-08 15:14:29,413 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-11-08 15:14:29,413 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:14:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:14:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-11-08 15:14:29,414 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-11-08 15:14:29,414 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-11-08 15:14:29,415 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-11-08 15:14:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 15:14:29,415 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-11-08 15:14:29,416 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-11-08 15:14:29,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 15:14:29,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 15:14:29,489 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 15:14:29,491 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 15:14:29,716 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-08 15:14:29,717 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 15:14:29,730 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 15:14:29,730 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-08 15:14:29,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:29 BoogieIcfgContainer [2024-11-08 15:14:29,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 15:14:29,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 15:14:29,732 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 15:14:29,735 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 15:14:29,735 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 03:14:28" (1/3) ... [2024-11-08 15:14:29,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd276a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:29, skipping insertion in model container [2024-11-08 15:14:29,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 03:14:29" (2/3) ... [2024-11-08 15:14:29,736 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6dd276a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 03:14:29, skipping insertion in model container [2024-11-08 15:14:29,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:29" (3/3) ... [2024-11-08 15:14:29,737 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product63.cil.c [2024-11-08 15:14:29,749 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 15:14:29,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 15:14:29,792 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 15:14:29,797 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;@4fe6a706, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 15:14:29,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 15:14:29,800 INFO L276 IsEmpty]: Start isEmpty. Operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 19 states have call successors, (19), 10 states have call predecessors, (19), 10 states have return successors, (19), 14 states have call predecessors, (19), 19 states have call successors, (19) [2024-11-08 15:14:29,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-08 15:14:29,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:29,807 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] [2024-11-08 15:14:29,808 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:29,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:29,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1947167556, now seen corresponding path program 1 times [2024-11-08 15:14:29,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:29,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734936639] [2024-11-08 15:14:29,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:29,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:29,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:29,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-08 15:14:29,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:29,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734936639] [2024-11-08 15:14:29,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734936639] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:29,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:29,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 15:14:29,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196002716] [2024-11-08 15:14:30,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:30,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 15:14:30,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:30,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 15:14:30,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 15:14:30,042 INFO L87 Difference]: Start difference. First operand has 114 states, 83 states have (on average 1.3734939759036144) internal successors, (114), 94 states have internal predecessors, (114), 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 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-11-08 15:14:30,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:30,067 INFO L93 Difference]: Finished difference Result 219 states and 298 transitions. [2024-11-08 15:14:30,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 15:14:30,070 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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 25 [2024-11-08 15:14:30,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:30,076 INFO L225 Difference]: With dead ends: 219 [2024-11-08 15:14:30,076 INFO L226 Difference]: Without dead ends: 105 [2024-11-08 15:14:30,079 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 [2024-11-08 15:14:30,081 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:30,082 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:30,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2024-11-08 15:14:30,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2024-11-08 15:14:30,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 76 states have (on average 1.3157894736842106) internal successors, (100), 86 states have internal predecessors, (100), 19 states have call successors, (19), 10 states have call predecessors, (19), 9 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-08 15:14:30,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 137 transitions. [2024-11-08 15:14:30,116 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 137 transitions. Word has length 25 [2024-11-08 15:14:30,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:30,116 INFO L471 AbstractCegarLoop]: Abstraction has 105 states and 137 transitions. [2024-11-08 15:14:30,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 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) [2024-11-08 15:14:30,116 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 137 transitions. [2024-11-08 15:14:30,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-08 15:14:30,121 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:30,121 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] [2024-11-08 15:14:30,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 15:14:30,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:30,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:30,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1638616570, now seen corresponding path program 1 times [2024-11-08 15:14:30,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:30,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [101935743] [2024-11-08 15:14:30,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:30,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-08 15:14:30,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:30,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:30,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [101935743] [2024-11-08 15:14:30,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [101935743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:30,233 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:30,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-08 15:14:30,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485623440] [2024-11-08 15:14:30,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:30,235 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 15:14:30,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:30,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 15:14:30,236 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-08 15:14:30,236 INFO L87 Difference]: Start difference. First operand 105 states and 137 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-08 15:14:30,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:30,261 INFO L93 Difference]: Finished difference Result 171 states and 223 transitions. [2024-11-08 15:14:30,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 15:14:30,262 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 26 [2024-11-08 15:14:30,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:30,263 INFO L225 Difference]: With dead ends: 171 [2024-11-08 15:14:30,263 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 15:14:30,264 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 [2024-11-08 15:14:30,265 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 16 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:30,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 227 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:30,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 15:14:30,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 15:14:30,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 70 states have (on average 1.3285714285714285) internal successors, (93), 80 states have internal predecessors, (93), 16 states have call successors, (16), 9 states have call predecessors, (16), 9 states have return successors, (16), 11 states have call predecessors, (16), 16 states have call successors, (16) [2024-11-08 15:14:30,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 125 transitions. [2024-11-08 15:14:30,282 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 125 transitions. Word has length 26 [2024-11-08 15:14:30,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:30,282 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 125 transitions. [2024-11-08 15:14:30,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2024-11-08 15:14:30,285 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 125 transitions. [2024-11-08 15:14:30,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-08 15:14:30,286 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:30,286 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, 1, 1] [2024-11-08 15:14:30,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-08 15:14:30,286 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:30,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:30,287 INFO L85 PathProgramCache]: Analyzing trace with hash 1033007084, now seen corresponding path program 1 times [2024-11-08 15:14:30,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:30,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089904381] [2024-11-08 15:14:30,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:30,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:30,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:14:30,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:30,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:30,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089904381] [2024-11-08 15:14:30,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089904381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:30,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:30,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:14:30,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961671696] [2024-11-08 15:14:30,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:30,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:30,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:30,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:30,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:14:30,420 INFO L87 Difference]: Start difference. First operand 96 states and 125 transitions. Second operand has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-08 15:14:30,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:30,602 INFO L93 Difference]: Finished difference Result 314 states and 416 transitions. [2024-11-08 15:14:30,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:14:30,603 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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 30 [2024-11-08 15:14:30,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:30,605 INFO L225 Difference]: With dead ends: 314 [2024-11-08 15:14:30,607 INFO L226 Difference]: Without dead ends: 226 [2024-11-08 15:14:30,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-08 15:14:30,610 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 297 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 118 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 297 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 118 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:30,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [297 Valid, 474 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 118 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:30,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-08 15:14:30,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 220. [2024-11-08 15:14:30,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 159 states have (on average 1.3584905660377358) internal successors, (216), 181 states have internal predecessors, (216), 37 states have call successors, (37), 23 states have call predecessors, (37), 23 states have return successors, (38), 25 states have call predecessors, (38), 37 states have call successors, (38) [2024-11-08 15:14:30,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 291 transitions. [2024-11-08 15:14:30,638 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 291 transitions. Word has length 30 [2024-11-08 15:14:30,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:30,639 INFO L471 AbstractCegarLoop]: Abstraction has 220 states and 291 transitions. [2024-11-08 15:14:30,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.5) internal successors, (27), 6 states have internal predecessors, (27), 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) [2024-11-08 15:14:30,639 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 291 transitions. [2024-11-08 15:14:30,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-08 15:14:30,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:30,641 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, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:30,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-08 15:14:30,641 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:30,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:30,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1394669962, now seen corresponding path program 1 times [2024-11-08 15:14:30,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:30,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931518841] [2024-11-08 15:14:30,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:30,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:30,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:14:30,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-08 15:14:30,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:30,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931518841] [2024-11-08 15:14:30,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931518841] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:30,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:30,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:30,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304018114] [2024-11-08 15:14:30,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:30,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:30,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:30,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:30,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:30,714 INFO L87 Difference]: Start difference. First operand 220 states and 291 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:30,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:30,786 INFO L93 Difference]: Finished difference Result 527 states and 712 transitions. [2024-11-08 15:14:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-08 15:14:30,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 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 34 [2024-11-08 15:14:30,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:30,789 INFO L225 Difference]: With dead ends: 527 [2024-11-08 15:14:30,789 INFO L226 Difference]: Without dead ends: 315 [2024-11-08 15:14:30,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:30,796 INFO L432 NwaCegarLoop]: 118 mSDtfsCounter, 86 mSDsluCounter, 313 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:30,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 431 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 15:14:30,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-08 15:14:30,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 313. [2024-11-08 15:14:30,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 228 states have (on average 1.2894736842105263) internal successors, (294), 249 states have internal predecessors, (294), 46 states have call successors, (46), 38 states have call predecessors, (46), 38 states have return successors, (60), 41 states have call predecessors, (60), 46 states have call successors, (60) [2024-11-08 15:14:30,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 400 transitions. [2024-11-08 15:14:30,859 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 400 transitions. Word has length 34 [2024-11-08 15:14:30,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:30,859 INFO L471 AbstractCegarLoop]: Abstraction has 313 states and 400 transitions. [2024-11-08 15:14:30,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-08 15:14:30,859 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 400 transitions. [2024-11-08 15:14:30,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:14:30,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:30,866 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:30,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-08 15:14:30,866 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:30,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:30,867 INFO L85 PathProgramCache]: Analyzing trace with hash -261508897, now seen corresponding path program 1 times [2024-11-08 15:14:30,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:30,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512106777] [2024-11-08 15:14:30,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:30,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:30,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:14:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:30,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:30,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:31,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 15:14:31,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:14:31,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:31,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512106777] [2024-11-08 15:14:31,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512106777] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:31,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:31,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-08 15:14:31,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368838881] [2024-11-08 15:14:31,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:31,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-08 15:14:31,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:31,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-08 15:14:31,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-08 15:14:31,017 INFO L87 Difference]: Start difference. First operand 313 states and 400 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:31,176 INFO L93 Difference]: Finished difference Result 680 states and 893 transitions. [2024-11-08 15:14:31,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-08 15:14:31,176 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 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 61 [2024-11-08 15:14:31,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:31,178 INFO L225 Difference]: With dead ends: 680 [2024-11-08 15:14:31,181 INFO L226 Difference]: Without dead ends: 375 [2024-11-08 15:14:31,182 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:14:31,183 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 68 mSDsluCounter, 312 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 406 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:31,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 406 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:31,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2024-11-08 15:14:31,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 373. [2024-11-08 15:14:31,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 274 states have (on average 1.27007299270073) internal successors, (348), 295 states have internal predecessors, (348), 50 states have call successors, (50), 38 states have call predecessors, (50), 48 states have return successors, (74), 53 states have call predecessors, (74), 50 states have call successors, (74) [2024-11-08 15:14:31,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 472 transitions. [2024-11-08 15:14:31,218 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 472 transitions. Word has length 61 [2024-11-08 15:14:31,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:31,218 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 472 transitions. [2024-11-08 15:14:31,218 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 5 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,219 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 472 transitions. [2024-11-08 15:14:31,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:14:31,220 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:31,220 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:31,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-08 15:14:31,222 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:31,223 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:31,223 INFO L85 PathProgramCache]: Analyzing trace with hash -333895455, now seen corresponding path program 1 times [2024-11-08 15:14:31,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:31,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97755797] [2024-11-08 15:14:31,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:31,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:31,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:14:31,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:31,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:31,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:31,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 15:14:31,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,342 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:14:31,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:31,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97755797] [2024-11-08 15:14:31,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97755797] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:31,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:31,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-08 15:14:31,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [956283921] [2024-11-08 15:14:31,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:31,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-08 15:14:31,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:31,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-08 15:14:31,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:31,344 INFO L87 Difference]: Start difference. First operand 373 states and 472 transitions. Second operand has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:31,536 INFO L93 Difference]: Finished difference Result 744 states and 969 transitions. [2024-11-08 15:14:31,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:14:31,536 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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 61 [2024-11-08 15:14:31,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:31,538 INFO L225 Difference]: With dead ends: 744 [2024-11-08 15:14:31,539 INFO L226 Difference]: Without dead ends: 379 [2024-11-08 15:14:31,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-08 15:14:31,541 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 67 mSDsluCounter, 396 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 489 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:31,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 489 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:14:31,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 379 states. [2024-11-08 15:14:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 379 to 377. [2024-11-08 15:14:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 377 states, 278 states have (on average 1.2661870503597121) internal successors, (352), 299 states have internal predecessors, (352), 50 states have call successors, (50), 38 states have call predecessors, (50), 48 states have return successors, (74), 53 states have call predecessors, (74), 50 states have call successors, (74) [2024-11-08 15:14:31,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 377 states to 377 states and 476 transitions. [2024-11-08 15:14:31,569 INFO L78 Accepts]: Start accepts. Automaton has 377 states and 476 transitions. Word has length 61 [2024-11-08 15:14:31,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:31,570 INFO L471 AbstractCegarLoop]: Abstraction has 377 states and 476 transitions. [2024-11-08 15:14:31,570 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.857142857142857) internal successors, (48), 6 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,570 INFO L276 IsEmpty]: Start isEmpty. Operand 377 states and 476 transitions. [2024-11-08 15:14:31,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-08 15:14:31,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:31,572 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:31,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-08 15:14:31,572 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:31,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:31,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1177900957, now seen corresponding path program 1 times [2024-11-08 15:14:31,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:31,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810969320] [2024-11-08 15:14:31,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:31,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:31,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:14:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:31,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,649 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:31,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-11-08 15:14:31,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,655 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:14:31,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:31,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810969320] [2024-11-08 15:14:31,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810969320] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:31,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:31,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-08 15:14:31,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954042905] [2024-11-08 15:14:31,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:31,656 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-08 15:14:31,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:31,656 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-08 15:14:31,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-08 15:14:31,656 INFO L87 Difference]: Start difference. First operand 377 states and 476 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:31,866 INFO L93 Difference]: Finished difference Result 1076 states and 1414 transitions. [2024-11-08 15:14:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-08 15:14:31,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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 61 [2024-11-08 15:14:31,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:31,871 INFO L225 Difference]: With dead ends: 1076 [2024-11-08 15:14:31,872 INFO L226 Difference]: Without dead ends: 707 [2024-11-08 15:14:31,874 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-08 15:14:31,874 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 249 mSDsluCounter, 199 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:31,875 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 338 Invalid, 245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-08 15:14:31,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2024-11-08 15:14:31,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 700. [2024-11-08 15:14:31,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 518 states have (on average 1.2413127413127414) internal successors, (643), 551 states have internal predecessors, (643), 93 states have call successors, (93), 83 states have call predecessors, (93), 88 states have return successors, (152), 93 states have call predecessors, (152), 93 states have call successors, (152) [2024-11-08 15:14:31,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 888 transitions. [2024-11-08 15:14:31,907 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 888 transitions. Word has length 61 [2024-11-08 15:14:31,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:31,907 INFO L471 AbstractCegarLoop]: Abstraction has 700 states and 888 transitions. [2024-11-08 15:14:31,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-08 15:14:31,907 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 888 transitions. [2024-11-08 15:14:31,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-08 15:14:31,908 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:31,908 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:31,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-08 15:14:31,909 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:31,909 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:31,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1002671561, now seen corresponding path program 1 times [2024-11-08 15:14:31,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:31,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123816880] [2024-11-08 15:14:31,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:31,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:31,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:31,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:31,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:14:31,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:32,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:32,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-08 15:14:32,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-08 15:14:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123816880] [2024-11-08 15:14:32,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123816880] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:32,109 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 15:14:32,109 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-08 15:14:32,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699614007] [2024-11-08 15:14:32,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:32,110 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-08 15:14:32,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:32,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-08 15:14:32,110 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-08 15:14:32,111 INFO L87 Difference]: Start difference. First operand 700 states and 888 transitions. Second operand has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:14:32,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:32,793 INFO L93 Difference]: Finished difference Result 2208 states and 2929 transitions. [2024-11-08 15:14:32,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-08 15:14:32,794 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) Word has length 65 [2024-11-08 15:14:32,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:32,800 INFO L225 Difference]: With dead ends: 2208 [2024-11-08 15:14:32,800 INFO L226 Difference]: Without dead ends: 1516 [2024-11-08 15:14:32,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=208, Invalid=784, Unknown=0, NotChecked=0, Total=992 [2024-11-08 15:14:32,804 INFO L432 NwaCegarLoop]: 67 mSDtfsCounter, 543 mSDsluCounter, 452 mSDsCounter, 0 mSdLazyCounter, 730 mSolverCounterSat, 243 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 551 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 243 IncrementalHoareTripleChecker+Valid, 730 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:32,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [551 Valid, 519 Invalid, 973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [243 Valid, 730 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-08 15:14:32,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2024-11-08 15:14:32,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1478. [2024-11-08 15:14:32,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1077 states have (on average 1.2079851439182916) internal successors, (1301), 1158 states have internal predecessors, (1301), 212 states have call successors, (212), 162 states have call predecessors, (212), 188 states have return successors, (387), 210 states have call predecessors, (387), 212 states have call successors, (387) [2024-11-08 15:14:32,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1900 transitions. [2024-11-08 15:14:32,882 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1900 transitions. Word has length 65 [2024-11-08 15:14:32,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:32,883 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 1900 transitions. [2024-11-08 15:14:32,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.166666666666667) internal successors, (50), 7 states have internal predecessors, (50), 2 states have call successors, (7), 3 states have call predecessors, (7), 4 states have return successors, (6), 5 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 15:14:32,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1900 transitions. [2024-11-08 15:14:32,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 15:14:32,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:32,886 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:32,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-08 15:14:32,887 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:32,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:32,887 INFO L85 PathProgramCache]: Analyzing trace with hash -936110750, now seen corresponding path program 1 times [2024-11-08 15:14:32,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:32,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130926002] [2024-11-08 15:14:32,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:32,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:32,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:32,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:32,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-11-08 15:14:33,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,032 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 15:14:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:33,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:33,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:33,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,194 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 15:14:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-08 15:14:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-11-08 15:14:33,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:33,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-11-08 15:14:33,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 15:14:33,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:33,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 15:14:33,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,206 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 18 proven. 15 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-08 15:14:33,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:33,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130926002] [2024-11-08 15:14:33,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130926002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:33,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835786261] [2024-11-08 15:14:33,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:33,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:33,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:33,209 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:33,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 15:14:33,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:33,289 INFO L255 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 15:14:33,295 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-08 15:14:33,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:33,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835786261] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:33,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:14:33,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [16] total 21 [2024-11-08 15:14:33,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023781232] [2024-11-08 15:14:33,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:33,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:14:33,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:33,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:14:33,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:14:33,476 INFO L87 Difference]: Start difference. First operand 1478 states and 1900 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 15:14:33,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:33,716 INFO L93 Difference]: Finished difference Result 2948 states and 3792 transitions. [2024-11-08 15:14:33,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:14:33,717 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 127 [2024-11-08 15:14:33,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:33,723 INFO L225 Difference]: With dead ends: 2948 [2024-11-08 15:14:33,723 INFO L226 Difference]: Without dead ends: 1478 [2024-11-08 15:14:33,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-08 15:14:33,728 INFO L432 NwaCegarLoop]: 225 mSDtfsCounter, 81 mSDsluCounter, 601 mSDsCounter, 0 mSdLazyCounter, 200 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 200 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:33,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 826 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 200 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:33,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1478 states. [2024-11-08 15:14:33,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1478 to 1478. [2024-11-08 15:14:33,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1478 states, 1077 states have (on average 1.1940575673166203) internal successors, (1286), 1158 states have internal predecessors, (1286), 212 states have call successors, (212), 162 states have call predecessors, (212), 188 states have return successors, (344), 210 states have call predecessors, (344), 212 states have call successors, (344) [2024-11-08 15:14:33,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1478 states to 1478 states and 1842 transitions. [2024-11-08 15:14:33,803 INFO L78 Accepts]: Start accepts. Automaton has 1478 states and 1842 transitions. Word has length 127 [2024-11-08 15:14:33,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:33,804 INFO L471 AbstractCegarLoop]: Abstraction has 1478 states and 1842 transitions. [2024-11-08 15:14:33,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 6 states have internal predecessors, (87), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 15:14:33,804 INFO L276 IsEmpty]: Start isEmpty. Operand 1478 states and 1842 transitions. [2024-11-08 15:14:33,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-08 15:14:33,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 15:14:33,807 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:33,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 15:14:34,008 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:34,008 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 15:14:34,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 15:14:34,009 INFO L85 PathProgramCache]: Analyzing trace with hash -921698978, now seen corresponding path program 1 times [2024-11-08 15:14:34,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 15:14:34,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436220749] [2024-11-08 15:14:34,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:34,009 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 15:14:34,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 15:14:34,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 15:14:34,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-11-08 15:14:34,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:34,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-08 15:14:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,138 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-08 15:14:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-08 15:14:34,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-08 15:14:34,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-08 15:14:34,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-08 15:14:34,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-08 15:14:34,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-08 15:14:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-11-08 15:14:34,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,223 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 17 proven. 3 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-08 15:14:34,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 15:14:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436220749] [2024-11-08 15:14:34,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436220749] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 15:14:34,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652823175] [2024-11-08 15:14:34,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 15:14:34,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 15:14:34,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 15:14:34,225 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 15:14:34,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 15:14:34,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 15:14:34,305 INFO L255 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-08 15:14:34,309 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 15:14:34,417 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-08 15:14:34,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 15:14:34,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652823175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 15:14:34,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 15:14:34,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 20 [2024-11-08 15:14:34,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204645798] [2024-11-08 15:14:34,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 15:14:34,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-08 15:14:34,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 15:14:34,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-08 15:14:34,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2024-11-08 15:14:34,420 INFO L87 Difference]: Start difference. First operand 1478 states and 1842 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 15:14:34,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 15:14:34,558 INFO L93 Difference]: Finished difference Result 2538 states and 3204 transitions. [2024-11-08 15:14:34,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 15:14:34,559 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) Word has length 123 [2024-11-08 15:14:34,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 15:14:34,561 INFO L225 Difference]: With dead ends: 2538 [2024-11-08 15:14:34,561 INFO L226 Difference]: Without dead ends: 0 [2024-11-08 15:14:34,566 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=400, Unknown=0, NotChecked=0, Total=462 [2024-11-08 15:14:34,566 INFO L432 NwaCegarLoop]: 203 mSDtfsCounter, 70 mSDsluCounter, 1031 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 15:14:34,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 1234 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 15:14:34,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-08 15:14:34,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-08 15:14:34,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-08 15:14:34,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-08 15:14:34,568 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 123 [2024-11-08 15:14:34,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 15:14:34,568 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-08 15:14:34,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 6 states have internal predecessors, (88), 3 states have call successors, (15), 3 states have call predecessors, (15), 5 states have return successors, (14), 5 states have call predecessors, (14), 3 states have call successors, (14) [2024-11-08 15:14:34,569 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-08 15:14:34,569 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-08 15:14:34,571 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-08 15:14:34,584 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 15:14:34,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-08 15:14:34,779 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 15:14:34,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-08 15:14:38,145 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-08 15:14:38,161 WARN L156 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-08 15:14:38,169 WARN L156 FloydHoareUtils]: Requires clause for changeMethaneLevel contained old-variable. Original clause: (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (<= 1 ~methaneLevelCritical~0) (< |old(~methaneLevelCritical~0)| 1)) (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|)) (and .cse1 (not (= 0 ~systemActive~0))))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (let ((.cse0 (= ~pumpRunning~0 0))) (or (and .cse0 .cse1) (and .cse0 (<= 1 |old(~methaneLevelCritical~0)|)) (and .cse1 (not (= 0 ~systemActive~0))))) (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-11-08 15:14:38,171 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-08 15:14:38,176 WARN L156 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= ~methaneLevelCritical~0 0)) (.cse2 (= |old(~pumpRunning~0)| 0)) (.cse3 (<= 1 ~methaneLevelCritical~0)) (.cse1 (not (= 0 ~systemActive~0)))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse2) (and .cse3 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse1 (<= 1 ~methaneLevelCritical~0)) (.cse3 (not (= 0 ~systemActive~0))) (.cse0 (= ~pumpRunning~0 0)) (.cse2 (= ~methaneLevelCritical~0 0))) (or (and .cse0 .cse1) (and .cse2 .cse3) (and .cse1 .cse3) (and .cse0 .cse2))) [2024-11-08 15:14:38,181 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| 0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-08 15:14:38,183 WARN L156 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0)) (and .cse1 (not (= 0 ~systemActive~0))) (and .cse0 .cse1))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= ~pumpRunning~0 0)) (.cse1 (= ~methaneLevelCritical~0 0))) (or (and .cse0 (<= 1 ~methaneLevelCritical~0)) (and .cse1 (not (= 0 ~systemActive~0))) (and .cse0 .cse1))) [2024-11-08 15:14:38,186 WARN L156 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) (= |old(~pumpRunning~0)| 0) .cse0)))) Eliminated clause: (let ((.cse0 (not (= 0 ~systemActive~0)))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-11-08 15:14:38,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.11 03:14:38 BoogieIcfgContainer [2024-11-08 15:14:38,189 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-08 15:14:38,190 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-08 15:14:38,190 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-08 15:14:38,190 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-08 15:14:38,191 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 03:14:29" (3/4) ... [2024-11-08 15:14:38,192 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-08 15:14:38,197 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-11-08 15:14:38,198 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-11-08 15:14:38,205 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2024-11-08 15:14:38,205 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-08 15:14:38,206 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-08 15:14:38,206 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:14:38,206 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-08 15:14:38,295 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-08 15:14:38,296 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-08 15:14:38,296 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-08 15:14:38,296 INFO L158 Benchmark]: Toolchain (without parser) took 9424.44ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 140.4MB in the beginning and 78.5MB in the end (delta: 62.0MB). Peak memory consumption was 139.7MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,297 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-08 15:14:38,297 INFO L158 Benchmark]: CACSL2BoogieTranslator took 383.76ms. Allocated memory is still 172.0MB. Free memory was 140.4MB in the beginning and 118.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,297 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.17ms. Allocated memory is still 172.0MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,297 INFO L158 Benchmark]: Boogie Preprocessor took 38.06ms. Allocated memory is still 172.0MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,298 INFO L158 Benchmark]: RCFGBuilder took 394.72ms. Allocated memory is still 172.0MB. Free memory was 113.3MB in the beginning and 93.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,298 INFO L158 Benchmark]: TraceAbstraction took 8457.17ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.5MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,298 INFO L158 Benchmark]: Witness Printer took 106.12ms. Allocated memory is still 249.6MB. Free memory was 86.9MB in the beginning and 78.5MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-08 15:14:38,299 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 121.6MB. Free memory was 82.5MB in the beginning and 82.4MB in the end (delta: 120.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 383.76ms. Allocated memory is still 172.0MB. Free memory was 140.4MB in the beginning and 118.6MB in the end (delta: 21.9MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.17ms. Allocated memory is still 172.0MB. Free memory was 118.6MB in the beginning and 116.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.06ms. Allocated memory is still 172.0MB. Free memory was 116.5MB in the beginning and 113.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 394.72ms. Allocated memory is still 172.0MB. Free memory was 113.3MB in the beginning and 93.4MB in the end (delta: 19.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 8457.17ms. Allocated memory was 172.0MB in the beginning and 249.6MB in the end (delta: 77.6MB). Free memory was 92.3MB in the beginning and 86.9MB in the end (delta: 5.5MB). Peak memory consumption was 102.1MB. Max. memory is 16.1GB. * Witness Printer took 106.12ms. Allocated memory is still 249.6MB. Free memory was 86.9MB in the beginning and 78.5MB 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,"Test.i","") [49] - GenericResultAtLocation [Line: 155]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [155] - GenericResultAtLocation [Line: 164]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification2_spec.i","") [164] - GenericResultAtLocation [Line: 205]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [205] - GenericResultAtLocation [Line: 313]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [313] - GenericResultAtLocation [Line: 381]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [381] - GenericResultAtLocation [Line: 638]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [638] - GenericResultAtLocation [Line: 673]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [673] - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 160]: 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, 114 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 10, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1514 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1477 mSDsluCounter, 5090 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3743 mSDsCounter, 398 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1750 IncrementalHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 398 mSolverCounterUnsat, 1347 mSDtfsCounter, 1750 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 464 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1478occurred in iteration=8, InterpolantAutomatonStates: 77, 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, 57 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 863 NumberOfCodeBlocks, 863 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 851 ConstructedInterpolants, 0 QuantifiedInterpolants, 1451 SizeOfPredicates, 1 NumberOfNonLiveVariables, 774 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 194/212 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: 325]: Loop Invariant Derived loop invariant: (((((pumpRunning == 0) && (methaneLevelCritical == 0)) && (splverifierCounter == 0)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (splverifierCounter == 0))) || (((methaneLevelCritical == 0) && (splverifierCounter == 0)) && (0 != systemActive))) - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 324]: Location Invariant Derived location invariant: 0 - ProcedureContractResult [Line: 521]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) Ensures: (((pumpRunning == 0) && (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive)))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 411]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 237]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: (((((((pumpRunning == 0) && (\old(methaneLevelCritical) == 0)) || ((pumpRunning == 0) && (1 <= \old(methaneLevelCritical)))) || ((\old(methaneLevelCritical) == 0) && (0 != systemActive))) && ((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 249]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) Ensures: (((\result == methaneLevelCritical) && (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0)))) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 387]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) Ensures: ((((((((((methaneLevelCritical == 0) && (0 != systemActive)) || ((methaneLevelCritical == 0) && (\old(pumpRunning) == 0))) || ((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0))) || ((1 <= methaneLevelCritical) && (0 != systemActive))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == 0) || (0 != systemActive))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 52]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: (0 && ((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 419]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 != systemActive))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (1 < waterLevel))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 225]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) Ensures: (((((((pumpRunning == 0) && (1 <= methaneLevelCritical)) || ((methaneLevelCritical == 0) && (0 != systemActive))) || ((pumpRunning == 0) && (methaneLevelCritical == 0))) && (((pumpRunning != 0) || (\old(waterLevel) != 1)) || (1 < waterLevel))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 445]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (0 != systemActive))) Ensures: ((((((methaneLevelCritical == 0) && (0 != systemActive)) || (((1 <= methaneLevelCritical) && (\old(pumpRunning) == 0)) && (0 != systemActive))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (systemActive == \old(systemActive))) && (head == \old(head)))) - ProcedureContractResult [Line: 529]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) Ensures: (((((methaneLevelCritical == 0) && (0 != systemActive)) || ((1 <= methaneLevelCritical) && (0 != systemActive))) && (\result == methaneLevelCritical)) && (((((((cleanupTimeShifts == \old(cleanupTimeShifts)) && (methAndRunningLastTime == \old(methAndRunningLastTime))) && (waterLevel == \old(waterLevel))) && (methaneLevelCritical == \old(methaneLevelCritical))) && (pumpRunning == \old(pumpRunning))) && (systemActive == \old(systemActive))) && (head == \old(head)))) RESULT: Ultimate proved your program to be correct! [2024-11-08 15:14:38,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE