./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.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 f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 03:07:41,154 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 03:07:41,221 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 03:07:41,227 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 03:07:41,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 03:07:41,260 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 03:07:41,261 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 03:07:41,261 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 03:07:41,262 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 03:07:41,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 03:07:41,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 03:07:41,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 03:07:41,266 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 03:07:41,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 03:07:41,266 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 03:07:41,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 03:07:41,269 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 03:07:41,270 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 03:07:41,270 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 03:07:41,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 03:07:41,271 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 03:07:41,271 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 03:07:41,272 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 03:07:41,272 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 03:07:41,272 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 03:07:41,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 03:07:41,273 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 03:07:41,273 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 03:07:41,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 03:07:41,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 03:07:41,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 03:07:41,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 03:07:41,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:07:41,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 03:07:41,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 03:07:41,276 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 03:07:41,276 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 03:07:41,276 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 03:07:41,277 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 03:07:41,277 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 03:07:41,277 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 03:07:41,278 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 03:07:41,278 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f250833677b07ed1377ed852c7268af3b652ab26de7f7fe1fca27ae75baf167f [2024-10-14 03:07:41,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 03:07:41,568 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 03:07:41,573 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 03:07:41,575 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 03:07:41,576 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 03:07:41,577 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-10-14 03:07:43,123 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 03:07:43,345 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 03:07:43,346 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c [2024-10-14 03:07:43,359 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd15fd518/661494dd849245949edb70c416534434/FLAGc1f8c7455 [2024-10-14 03:07:43,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cd15fd518/661494dd849245949edb70c416534434 [2024-10-14 03:07:43,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 03:07:43,376 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 03:07:43,378 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 03:07:43,378 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 03:07:43,384 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 03:07:43,386 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,388 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1634ca8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43, skipping insertion in model container [2024-10-14 03:07:43,389 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,436 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 03:07:43,627 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-14 03:07:43,745 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:07:43,757 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 03:07:43,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] [2024-10-14 03:07:43,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] [2024-10-14 03:07:43,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] [2024-10-14 03:07:43,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] [2024-10-14 03:07:43,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] [2024-10-14 03:07:43,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] [2024-10-14 03:07:43,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] [2024-10-14 03:07:43,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] [2024-10-14 03:07:43,785 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec1_product61.cil.c[3777,3790] [2024-10-14 03:07:43,854 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 03:07:43,879 INFO L204 MainTranslator]: Completed translation [2024-10-14 03:07:43,880 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43 WrapperNode [2024-10-14 03:07:43,880 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 03:07:43,881 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 03:07:43,881 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 03:07:43,881 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 03:07:43,886 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,900 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,947 INFO L138 Inliner]: procedures = 57, calls = 104, calls flagged for inlining = 22, calls inlined = 19, statements flattened = 215 [2024-10-14 03:07:43,948 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 03:07:43,948 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 03:07:43,950 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 03:07:43,950 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 03:07:43,961 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,965 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,981 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-14 03:07:43,982 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,982 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,986 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,991 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,992 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,994 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:43,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 03:07:43,997 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 03:07:43,997 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 03:07:43,997 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 03:07:43,998 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (1/1) ... [2024-10-14 03:07:44,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 03:07:44,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:07:44,038 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-14 03:07:44,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-14 03:07:44,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 03:07:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2024-10-14 03:07:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2024-10-14 03:07:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-10-14 03:07:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-10-14 03:07:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-10-14 03:07:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-10-14 03:07:44,103 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2024-10-14 03:07:44,103 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2024-10-14 03:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2024-10-14 03:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2024-10-14 03:07:44,104 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 03:07:44,104 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2024-10-14 03:07:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2024-10-14 03:07:44,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 03:07:44,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 03:07:44,192 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 03:07:44,194 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 03:07:44,516 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-10-14 03:07:44,517 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 03:07:44,582 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 03:07:44,583 INFO L314 CfgBuilder]: Removed 2 assume(true) statements. [2024-10-14 03:07:44,583 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:07:44 BoogieIcfgContainer [2024-10-14 03:07:44,583 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 03:07:44,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 03:07:44,586 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 03:07:44,589 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 03:07:44,589 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 03:07:43" (1/3) ... [2024-10-14 03:07:44,590 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1c559c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:07:44, skipping insertion in model container [2024-10-14 03:07:44,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 03:07:43" (2/3) ... [2024-10-14 03:07:44,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c1c559c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 03:07:44, skipping insertion in model container [2024-10-14 03:07:44,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:07:44" (3/3) ... [2024-10-14 03:07:44,593 INFO L112 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product61.cil.c [2024-10-14 03:07:44,610 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 03:07:44,610 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 03:07:44,677 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 03:07:44,685 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;@6e874ea, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 03:07:44,685 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 03:07:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand has 88 states, 58 states have (on average 1.5) internal successors, (87), 68 states have internal predecessors, (87), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-14 03:07:44,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-14 03:07:44,701 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:44,702 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:44,702 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:44,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:44,709 INFO L85 PathProgramCache]: Analyzing trace with hash 945414866, now seen corresponding path program 1 times [2024-10-14 03:07:44,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:44,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976358623] [2024-10-14 03:07:44,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:44,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:44,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:44,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-14 03:07:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:44,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:44,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:44,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976358623] [2024-10-14 03:07:44,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976358623] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:44,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:44,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 03:07:44,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741279800] [2024-10-14 03:07:44,908 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:44,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 03:07:44,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:44,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 03:07:44,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:07:44,937 INFO L87 Difference]: Start difference. First operand has 88 states, 58 states have (on average 1.5) internal successors, (87), 68 states have internal predecessors, (87), 18 states have call successors, (18), 10 states have call predecessors, (18), 10 states have return successors, (18), 13 states have call predecessors, (18), 18 states have call successors, (18) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:45,026 INFO L93 Difference]: Finished difference Result 174 states and 247 transitions. [2024-10-14 03:07:45,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 03:07:45,029 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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 16 [2024-10-14 03:07:45,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:45,038 INFO L225 Difference]: With dead ends: 174 [2024-10-14 03:07:45,038 INFO L226 Difference]: Without dead ends: 83 [2024-10-14 03:07:45,042 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 03:07:45,047 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:45,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 103 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:07:45,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-14 03:07:45,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-14 03:07:45,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 55 states have (on average 1.4) internal successors, (77), 64 states have internal predecessors, (77), 18 states have call successors, (18), 10 states have call predecessors, (18), 9 states have return successors, (17), 12 states have call predecessors, (17), 17 states have call successors, (17) [2024-10-14 03:07:45,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 112 transitions. [2024-10-14 03:07:45,096 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 112 transitions. Word has length 16 [2024-10-14 03:07:45,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:45,098 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 112 transitions. [2024-10-14 03:07:45,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,098 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 112 transitions. [2024-10-14 03:07:45,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-14 03:07:45,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:45,101 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:45,102 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 03:07:45,102 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:45,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:45,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1394773478, now seen corresponding path program 1 times [2024-10-14 03:07:45,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:45,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119758685] [2024-10-14 03:07:45,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:45,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:45,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-14 03:07:45,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:45,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:45,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119758685] [2024-10-14 03:07:45,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119758685] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:45,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:45,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:07:45,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782147917] [2024-10-14 03:07:45,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:45,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:07:45,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:45,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:07:45,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:07:45,251 INFO L87 Difference]: Start difference. First operand 83 states and 112 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:45,324 INFO L93 Difference]: Finished difference Result 139 states and 187 transitions. [2024-10-14 03:07:45,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:07:45,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2024-10-14 03:07:45,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:45,329 INFO L225 Difference]: With dead ends: 139 [2024-10-14 03:07:45,330 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 03:07:45,330 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:07:45,332 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 11 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:45,332 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 164 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:07:45,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 03:07:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-14 03:07:45,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.42) internal successors, (71), 59 states have internal predecessors, (71), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:07:45,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2024-10-14 03:07:45,352 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 17 [2024-10-14 03:07:45,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:45,352 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2024-10-14 03:07:45,352 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,352 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2024-10-14 03:07:45,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-10-14 03:07:45,356 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:45,356 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] [2024-10-14 03:07:45,356 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 03:07:45,357 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:45,357 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:45,358 INFO L85 PathProgramCache]: Analyzing trace with hash -567555512, now seen corresponding path program 1 times [2024-10-14 03:07:45,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:45,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24920277] [2024-10-14 03:07:45,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:45,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:45,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:45,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:45,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:45,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24920277] [2024-10-14 03:07:45,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24920277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:45,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:45,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 03:07:45,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539154978] [2024-10-14 03:07:45,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:45,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 03:07:45,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:45,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 03:07:45,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:07:45,478 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:45,529 INFO L93 Difference]: Finished difference Result 148 states and 201 transitions. [2024-10-14 03:07:45,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 03:07:45,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 20 [2024-10-14 03:07:45,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:45,534 INFO L225 Difference]: With dead ends: 148 [2024-10-14 03:07:45,534 INFO L226 Difference]: Without dead ends: 75 [2024-10-14 03:07:45,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 03:07:45,536 INFO L432 NwaCegarLoop]: 87 mSDtfsCounter, 89 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 87 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:45,540 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 87 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 03:07:45,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-14 03:07:45,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2024-10-14 03:07:45,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 50 states have (on average 1.4) internal successors, (70), 59 states have internal predecessors, (70), 15 states have call successors, (15), 9 states have call predecessors, (15), 9 states have return successors, (15), 10 states have call predecessors, (15), 15 states have call successors, (15) [2024-10-14 03:07:45,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 100 transitions. [2024-10-14 03:07:45,564 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 100 transitions. Word has length 20 [2024-10-14 03:07:45,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:45,564 INFO L471 AbstractCegarLoop]: Abstraction has 75 states and 100 transitions. [2024-10-14 03:07:45,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-10-14 03:07:45,564 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 100 transitions. [2024-10-14 03:07:45,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-10-14 03:07:45,569 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:45,570 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] [2024-10-14 03:07:45,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 03:07:45,570 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:45,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:45,571 INFO L85 PathProgramCache]: Analyzing trace with hash -867220679, now seen corresponding path program 1 times [2024-10-14 03:07:45,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:45,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180009886] [2024-10-14 03:07:45,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:45,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:45,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:07:45,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-14 03:07:45,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:45,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:45,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:45,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180009886] [2024-10-14 03:07:45,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180009886] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:45,807 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:45,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:07:45,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757959231] [2024-10-14 03:07:45,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:45,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:07:45,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:45,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:07:45,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:07:45,809 INFO L87 Difference]: Start difference. First operand 75 states and 100 transitions. Second operand has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:07:46,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:46,196 INFO L93 Difference]: Finished difference Result 223 states and 297 transitions. [2024-10-14 03:07:46,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:07:46,198 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 33 [2024-10-14 03:07:46,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:46,200 INFO L225 Difference]: With dead ends: 223 [2024-10-14 03:07:46,200 INFO L226 Difference]: Without dead ends: 150 [2024-10-14 03:07:46,205 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:07:46,209 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 143 mSDsluCounter, 205 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:46,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 271 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:07:46,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-14 03:07:46,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2024-10-14 03:07:46,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 99 states have (on average 1.3232323232323233) internal successors, (131), 108 states have internal predecessors, (131), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-14 03:07:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 186 transitions. [2024-10-14 03:07:46,255 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 186 transitions. Word has length 33 [2024-10-14 03:07:46,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:46,255 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 186 transitions. [2024-10-14 03:07:46,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.333333333333333) internal successors, (26), 5 states have internal predecessors, (26), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-14 03:07:46,256 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 186 transitions. [2024-10-14 03:07:46,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-10-14 03:07:46,257 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:46,257 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, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:46,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-14 03:07:46,257 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:46,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:46,258 INFO L85 PathProgramCache]: Analyzing trace with hash 166717757, now seen corresponding path program 1 times [2024-10-14 03:07:46,258 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:46,258 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491964629] [2024-10-14 03:07:46,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:46,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:46,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:46,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:46,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-10-14 03:07:46,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:46,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:46,438 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491964629] [2024-10-14 03:07:46,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491964629] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:46,438 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:46,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:07:46,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846794922] [2024-10-14 03:07:46,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:46,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:07:46,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:46,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:07:46,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:07:46,441 INFO L87 Difference]: Start difference. First operand 144 states and 186 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:07:46,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:46,688 INFO L93 Difference]: Finished difference Result 148 states and 188 transitions. [2024-10-14 03:07:46,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:07:46,689 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) Word has length 40 [2024-10-14 03:07:46,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:46,695 INFO L225 Difference]: With dead ends: 148 [2024-10-14 03:07:46,696 INFO L226 Difference]: Without dead ends: 146 [2024-10-14 03:07:46,697 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:07:46,698 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 120 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:46,698 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 204 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:07:46,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2024-10-14 03:07:46,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 144. [2024-10-14 03:07:46,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 99 states have (on average 1.303030303030303) internal successors, (129), 108 states have internal predecessors, (129), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-14 03:07:46,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 184 transitions. [2024-10-14 03:07:46,723 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 184 transitions. Word has length 40 [2024-10-14 03:07:46,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:46,723 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 184 transitions. [2024-10-14 03:07:46,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 4 states have internal predecessors, (31), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 1 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-14 03:07:46,724 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 184 transitions. [2024-10-14 03:07:46,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 03:07:46,725 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:46,725 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:46,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-14 03:07:46,725 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:46,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:46,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1787399124, now seen corresponding path program 1 times [2024-10-14 03:07:46,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:46,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225642838] [2024-10-14 03:07:46,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:46,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:46,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:46,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:46,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:46,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 03:07:46,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:46,834 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:07:46,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:46,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225642838] [2024-10-14 03:07:46,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225642838] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:46,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:46,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:07:46,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875741416] [2024-10-14 03:07:46,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:46,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:07:46,836 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:46,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:07:46,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:07:46,837 INFO L87 Difference]: Start difference. First operand 144 states and 184 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:07:47,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:47,024 INFO L93 Difference]: Finished difference Result 290 states and 382 transitions. [2024-10-14 03:07:47,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 03:07:47,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 47 [2024-10-14 03:07:47,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:47,026 INFO L225 Difference]: With dead ends: 290 [2024-10-14 03:07:47,026 INFO L226 Difference]: Without dead ends: 148 [2024-10-14 03:07:47,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:07:47,028 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 57 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 216 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:47,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 216 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:07:47,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2024-10-14 03:07:47,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 146. [2024-10-14 03:07:47,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 101 states have (on average 1.297029702970297) internal successors, (131), 110 states have internal predecessors, (131), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-14 03:07:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 186 transitions. [2024-10-14 03:07:47,057 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 186 transitions. Word has length 47 [2024-10-14 03:07:47,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:47,059 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 186 transitions. [2024-10-14 03:07:47,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:07:47,059 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 186 transitions. [2024-10-14 03:07:47,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 03:07:47,062 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:47,062 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:47,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-14 03:07:47,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:47,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:47,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1849438738, now seen corresponding path program 1 times [2024-10-14 03:07:47,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:47,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981742929] [2024-10-14 03:07:47,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:47,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:47,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:47,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 03:07:47,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:07:47,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:47,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981742929] [2024-10-14 03:07:47,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981742929] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:47,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:47,182 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-14 03:07:47,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204838536] [2024-10-14 03:07:47,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:47,192 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-14 03:07:47,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:47,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-14 03:07:47,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-14 03:07:47,194 INFO L87 Difference]: Start difference. First operand 146 states and 186 transitions. Second operand has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:07:47,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:47,411 INFO L93 Difference]: Finished difference Result 294 states and 386 transitions. [2024-10-14 03:07:47,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-14 03:07:47,411 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 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 47 [2024-10-14 03:07:47,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:47,413 INFO L225 Difference]: With dead ends: 294 [2024-10-14 03:07:47,413 INFO L226 Difference]: Without dead ends: 150 [2024-10-14 03:07:47,414 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-10-14 03:07:47,415 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 133 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:47,417 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 205 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:07:47,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2024-10-14 03:07:47,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 148. [2024-10-14 03:07:47,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 103 states have (on average 1.2912621359223302) internal successors, (133), 112 states have internal predecessors, (133), 22 states have call successors, (22), 17 states have call predecessors, (22), 22 states have return successors, (33), 24 states have call predecessors, (33), 22 states have call successors, (33) [2024-10-14 03:07:47,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 188 transitions. [2024-10-14 03:07:47,439 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 188 transitions. Word has length 47 [2024-10-14 03:07:47,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:47,440 INFO L471 AbstractCegarLoop]: Abstraction has 148 states and 188 transitions. [2024-10-14 03:07:47,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.833333333333333) internal successors, (35), 5 states have internal predecessors, (35), 3 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-10-14 03:07:47,440 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 188 transitions. [2024-10-14 03:07:47,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-10-14 03:07:47,442 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:47,442 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:47,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-14 03:07:47,442 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:47,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:47,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1339965648, now seen corresponding path program 1 times [2024-10-14 03:07:47,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:47,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096164077] [2024-10-14 03:07:47,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:47,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:47,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:47,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:47,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 03:07:47,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:47,538 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-14 03:07:47,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:47,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096164077] [2024-10-14 03:07:47,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2096164077] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:47,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:47,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-14 03:07:47,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519850745] [2024-10-14 03:07:47,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:47,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-14 03:07:47,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:47,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-14 03:07:47,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-14 03:07:47,540 INFO L87 Difference]: Start difference. First operand 148 states and 188 transitions. Second operand has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 03:07:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:47,877 INFO L93 Difference]: Finished difference Result 461 states and 631 transitions. [2024-10-14 03:07:47,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-14 03:07:47,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 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 47 [2024-10-14 03:07:47,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:47,880 INFO L225 Difference]: With dead ends: 461 [2024-10-14 03:07:47,880 INFO L226 Difference]: Without dead ends: 315 [2024-10-14 03:07:47,881 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-10-14 03:07:47,882 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 210 mSDsluCounter, 164 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 286 SdHoareTripleChecker+Invalid, 343 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:47,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 286 Invalid, 343 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 260 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 03:07:47,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-10-14 03:07:47,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 311. [2024-10-14 03:07:47,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 311 states, 217 states have (on average 1.2903225806451613) internal successors, (280), 232 states have internal predecessors, (280), 49 states have call successors, (49), 43 states have call predecessors, (49), 44 states have return successors, (82), 47 states have call predecessors, (82), 49 states have call successors, (82) [2024-10-14 03:07:47,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 311 states to 311 states and 411 transitions. [2024-10-14 03:07:47,915 INFO L78 Accepts]: Start accepts. Automaton has 311 states and 411 transitions. Word has length 47 [2024-10-14 03:07:47,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:47,915 INFO L471 AbstractCegarLoop]: Abstraction has 311 states and 411 transitions. [2024-10-14 03:07:47,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.0) internal successors, (35), 4 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 3 states have call predecessors, (5), 4 states have call successors, (5) [2024-10-14 03:07:47,915 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states and 411 transitions. [2024-10-14 03:07:47,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-10-14 03:07:47,916 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:47,917 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:47,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-14 03:07:47,917 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:47,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:47,918 INFO L85 PathProgramCache]: Analyzing trace with hash 2129281706, now seen corresponding path program 1 times [2024-10-14 03:07:47,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:47,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124316032] [2024-10-14 03:07:47,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:47,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:47,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:07:48,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-10-14 03:07:48,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:48,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:48,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:48,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-14 03:07:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,068 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 03:07:48,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:48,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124316032] [2024-10-14 03:07:48,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2124316032] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:48,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 03:07:48,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-14 03:07:48,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047610872] [2024-10-14 03:07:48,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:48,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:07:48,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:48,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:07:48,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-10-14 03:07:48,071 INFO L87 Difference]: Start difference. First operand 311 states and 411 transitions. Second operand has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:07:48,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:48,692 INFO L93 Difference]: Finished difference Result 1021 states and 1399 transitions. [2024-10-14 03:07:48,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-14 03:07:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) Word has length 51 [2024-10-14 03:07:48,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:48,698 INFO L225 Difference]: With dead ends: 1021 [2024-10-14 03:07:48,698 INFO L226 Difference]: Without dead ends: 712 [2024-10-14 03:07:48,700 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=112, Invalid=350, Unknown=0, NotChecked=0, Total=462 [2024-10-14 03:07:48,701 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 301 mSDsluCounter, 192 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 307 SdHoareTripleChecker+Valid, 237 SdHoareTripleChecker+Invalid, 600 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:48,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [307 Valid, 237 Invalid, 600 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-14 03:07:48,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 712 states. [2024-10-14 03:07:48,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 712 to 706. [2024-10-14 03:07:48,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 706 states, 489 states have (on average 1.247443762781186) internal successors, (610), 526 states have internal predecessors, (610), 118 states have call successors, (118), 86 states have call predecessors, (118), 98 states have return successors, (214), 116 states have call predecessors, (214), 118 states have call successors, (214) [2024-10-14 03:07:48,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 942 transitions. [2024-10-14 03:07:48,803 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 942 transitions. Word has length 51 [2024-10-14 03:07:48,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:48,803 INFO L471 AbstractCegarLoop]: Abstraction has 706 states and 942 transitions. [2024-10-14 03:07:48,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 5.428571428571429) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (7), 4 states have call predecessors, (7), 2 states have return successors, (6), 3 states have call predecessors, (6), 2 states have call successors, (6) [2024-10-14 03:07:48,804 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 942 transitions. [2024-10-14 03:07:48,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-14 03:07:48,805 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:48,805 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:48,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-14 03:07:48,806 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:48,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:48,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1377951846, now seen corresponding path program 1 times [2024-10-14 03:07:48,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:48,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950165682] [2024-10-14 03:07:48,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:48,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:48,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:07:48,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-10-14 03:07:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-10-14 03:07:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:48,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:48,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:49,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:49,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:49,140 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:49,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:49,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-10-14 03:07:49,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:49,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-14 03:07:49,162 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:49,162 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950165682] [2024-10-14 03:07:49,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950165682] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:07:49,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1880599329] [2024-10-14 03:07:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:49,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:07:49,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:07:49,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-14 03:07:49,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-14 03:07:49,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:49,242 INFO L255 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:07:49,251 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:07:49,492 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-14 03:07:49,492 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:07:49,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1880599329] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:49,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:07:49,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [15] total 21 [2024-10-14 03:07:49,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950454653] [2024-10-14 03:07:49,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:49,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:07:49,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:49,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:07:49,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:07:49,497 INFO L87 Difference]: Start difference. First operand 706 states and 942 transitions. Second operand has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 03:07:49,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:49,752 INFO L93 Difference]: Finished difference Result 1382 states and 1851 transitions. [2024-10-14 03:07:49,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:07:49,752 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) Word has length 55 [2024-10-14 03:07:49,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:49,758 INFO L225 Difference]: With dead ends: 1382 [2024-10-14 03:07:49,758 INFO L226 Difference]: Without dead ends: 678 [2024-10-14 03:07:49,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=364, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:07:49,761 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 66 mSDsluCounter, 431 mSDsCounter, 0 mSdLazyCounter, 256 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 256 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:49,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 598 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 256 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 03:07:49,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2024-10-14 03:07:49,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 678. [2024-10-14 03:07:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 469 states have (on average 1.232409381663113) internal successors, (578), 505 states have internal predecessors, (578), 115 states have call successors, (115), 84 states have call predecessors, (115), 93 states have return successors, (192), 110 states have call predecessors, (192), 115 states have call successors, (192) [2024-10-14 03:07:49,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 885 transitions. [2024-10-14 03:07:49,823 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 885 transitions. Word has length 55 [2024-10-14 03:07:49,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:49,823 INFO L471 AbstractCegarLoop]: Abstraction has 678 states and 885 transitions. [2024-10-14 03:07:49,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 5 states have return successors, (7), 5 states have call predecessors, (7), 3 states have call successors, (7) [2024-10-14 03:07:49,824 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 885 transitions. [2024-10-14 03:07:49,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-14 03:07:49,826 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 03:07:49,827 INFO L215 NwaCegarLoop]: trace histogram [4, 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] [2024-10-14 03:07:49,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-14 03:07:50,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-14 03:07:50,031 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 03:07:50,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 03:07:50,031 INFO L85 PathProgramCache]: Analyzing trace with hash 135949448, now seen corresponding path program 1 times [2024-10-14 03:07:50,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 03:07:50,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788579239] [2024-10-14 03:07:50,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:50,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 03:07:50,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:07:50,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,141 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 03:07:50,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-14 03:07:50,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:50,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 03:07:50,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:50,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-14 03:07:50,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-14 03:07:50,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 03:07:50,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-14 03:07:50,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-10-14 03:07:50,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-10-14 03:07:50,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 03:07:50,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 03:07:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-14 03:07:50,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 03:07:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788579239] [2024-10-14 03:07:50,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788579239] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-14 03:07:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [649001048] [2024-10-14 03:07:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 03:07:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-14 03:07:50,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 03:07:50,288 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) [2024-10-14 03:07:50,299 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-14 03:07:50,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 03:07:50,400 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-14 03:07:50,403 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-14 03:07:50,533 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-14 03:07:50,534 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-14 03:07:50,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [649001048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 03:07:50,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-14 03:07:50,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [14] total 19 [2024-10-14 03:07:50,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788924962] [2024-10-14 03:07:50,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 03:07:50,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-14 03:07:50,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 03:07:50,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-14 03:07:50,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2024-10-14 03:07:50,537 INFO L87 Difference]: Start difference. First operand 678 states and 885 transitions. Second operand has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-10-14 03:07:50,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 03:07:50,721 INFO L93 Difference]: Finished difference Result 1253 states and 1648 transitions. [2024-10-14 03:07:50,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-14 03:07:50,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 102 [2024-10-14 03:07:50,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 03:07:50,723 INFO L225 Difference]: With dead ends: 1253 [2024-10-14 03:07:50,723 INFO L226 Difference]: Without dead ends: 0 [2024-10-14 03:07:50,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2024-10-14 03:07:50,728 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 58 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 661 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 03:07:50,728 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 661 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 03:07:50,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-14 03:07:50,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-14 03:07:50,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-14 03:07:50,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-14 03:07:50,729 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 102 [2024-10-14 03:07:50,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 03:07:50,730 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-14 03:07:50,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2024-10-14 03:07:50,730 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-14 03:07:50,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-14 03:07:50,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-14 03:07:50,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-14 03:07:50,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-14 03:07:50,940 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 03:07:50,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-14 03:07:54,056 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-14 03:07:54,073 WARN L155 FloydHoareUtils]: Requires clause for deactivatePump contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0)))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-14 03:07:54,084 WARN L155 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 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0)))) Eliminated clause: (exists ((|old(~methaneLevelCritical~0)| Int)) (let ((.cse1 (= |old(~methaneLevelCritical~0)| 0))) (and (or (< |old(~methaneLevelCritical~0)| 1) (< 0 ~methaneLevelCritical~0)) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~pumpRunning~0 0) (<= 1 |old(~methaneLevelCritical~0)|) .cse0) (and .cse1 .cse0))) (or (not .cse1) (= ~methaneLevelCritical~0 0))))) [2024-10-14 03:07:54,088 WARN L953 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-10-14 03:07:54,095 WARN L155 FloydHoareUtils]: Requires clause for timeShift contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (<= 1 ~methaneLevelCritical~0) .cse0) (and (= ~methaneLevelCritical~0 0) .cse0))) [2024-10-14 03:07:54,107 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__highWaterSensor contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-14 03:07:54,111 WARN L155 FloydHoareUtils]: Requires clause for waterRise contained old-variable. Original clause: (and (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) (= |old(~waterLevel~0)| ~waterLevel~0)) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-14 03:07:54,115 WARN L155 FloydHoareUtils]: Requires clause for processEnvironment__wrappee__methaneQuery contained old-variable. Original clause: (and (= ~pumpRunning~0 |old(~pumpRunning~0)|) (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (<= 1 ~methaneLevelCritical~0) .cse0 (= |old(~pumpRunning~0)| 0))))) Eliminated clause: (let ((.cse0 (= 1 ~systemActive~0))) (or (and (= ~methaneLevelCritical~0 0) .cse0) (and (= ~pumpRunning~0 0) (<= 1 ~methaneLevelCritical~0) .cse0))) [2024-10-14 03:07:54,122 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 03:07:54 BoogieIcfgContainer [2024-10-14 03:07:54,122 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-14 03:07:54,123 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-14 03:07:54,123 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-14 03:07:54,123 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-14 03:07:54,123 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 03:07:44" (3/4) ... [2024-10-14 03:07:54,127 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure deactivatePump [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__base [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure changeMethaneLevel [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure timeShift [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure cleanup [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneLevelCritical [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__highWaterSensor [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure waterRise [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure processEnvironment__wrappee__methaneQuery [2024-10-14 03:07:54,132 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure isMethaneAlarm [2024-10-14 03:07:54,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2024-10-14 03:07:54,138 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 10 nodes and edges [2024-10-14 03:07:54,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-10-14 03:07:54,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:07:54,139 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-14 03:07:54,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-14 03:07:54,248 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-14 03:07:54,248 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-14 03:07:54,249 INFO L158 Benchmark]: Toolchain (without parser) took 10872.62ms. Allocated memory was 125.8MB in the beginning and 234.9MB in the end (delta: 109.1MB). Free memory was 71.6MB in the beginning and 158.8MB in the end (delta: -87.2MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,249 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-14 03:07:54,250 INFO L158 Benchmark]: CACSL2BoogieTranslator took 502.30ms. Allocated memory is still 125.8MB. Free memory was 71.6MB in the beginning and 50.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,250 INFO L158 Benchmark]: Boogie Procedure Inliner took 66.96ms. Allocated memory is still 125.8MB. Free memory was 50.6MB in the beginning and 96.3MB in the end (delta: -45.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,250 INFO L158 Benchmark]: Boogie Preprocessor took 47.67ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,251 INFO L158 Benchmark]: RCFGBuilder took 586.41ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 69.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,251 INFO L158 Benchmark]: TraceAbstraction took 9537.11ms. Allocated memory was 125.8MB in the beginning and 234.9MB in the end (delta: 109.1MB). Free memory was 68.4MB in the beginning and 167.2MB in the end (delta: -98.8MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,252 INFO L158 Benchmark]: Witness Printer took 125.94ms. Allocated memory is still 234.9MB. Free memory was 167.2MB in the beginning and 158.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-10-14 03:07:54,254 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 125.8MB. Free memory is still 87.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 502.30ms. Allocated memory is still 125.8MB. Free memory was 71.6MB in the beginning and 50.6MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 66.96ms. Allocated memory is still 125.8MB. Free memory was 50.6MB in the beginning and 96.3MB in the end (delta: -45.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.67ms. Allocated memory is still 125.8MB. Free memory was 96.3MB in the beginning and 93.6MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 586.41ms. Allocated memory is still 125.8MB. Free memory was 93.6MB in the beginning and 69.0MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 9537.11ms. Allocated memory was 125.8MB in the beginning and 234.9MB in the end (delta: 109.1MB). Free memory was 68.4MB in the beginning and 167.2MB in the end (delta: -98.8MB). Peak memory consumption was 111.3MB. Max. memory is 16.1GB. * Witness Printer took 125.94ms. Allocated memory is still 234.9MB. Free memory was 167.2MB in the beginning and 158.8MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 49]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [49] - GenericResultAtLocation [Line: 87]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Environment.i","") [87] - GenericResultAtLocation [Line: 198]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [198] - GenericResultAtLocation [Line: 207]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Specification1_spec.i","") [207] - GenericResultAtLocation [Line: 234]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [234] - GenericResultAtLocation [Line: 333]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"MinePump.i","") [333] - GenericResultAtLocation [Line: 575]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [575] - GenericResultAtLocation [Line: 640]: Unsoundness Warning Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [640] - 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: 203]: 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, 88 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.3s, OverallIterations: 11, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1232 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1188 mSDsluCounter, 3032 SdHoareTripleChecker+Invalid, 1.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2004 mSDsCounter, 388 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1860 IncrementalHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 388 mSolverCounterUnsat, 1028 mSDtfsCounter, 1860 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 357 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=706occurred in iteration=9, InterpolantAutomatonStates: 75, 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, 11 MinimizatonAttempts, 22 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 632 NumberOfCodeBlocks, 632 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 619 ConstructedInterpolants, 0 QuantifiedInterpolants, 1214 SizeOfPredicates, 1 NumberOfNonLiveVariables, 545 ConjunctsInSsa, 14 ConjunctsInUnsatCore, 13 InterpolantComputations, 11 PerfectInterpolantSequences, 81/92 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: 247]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 585]: Location Invariant Derived location invariant: 0 - InvariantResult [Line: 586]: Loop Invariant Derived loop invariant: ((((methaneLevelCritical == 0) && (1 == systemActive)) && (splverifierCounter == 0)) || ((((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive)) && (splverifierCounter == 0))) - ProcedureContractResult [Line: 473]: Procedure Contract for deactivatePump Derived contract for procedure deactivatePump. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((pumpRunning == 0) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) - ProcedureContractResult [Line: 363]: Procedure Contract for processEnvironment__wrappee__base Derived contract for procedure processEnvironment__wrappee__base. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) - ProcedureContractResult [Line: 122]: Procedure Contract for changeMethaneLevel Derived contract for procedure changeMethaneLevel. Ensures: ((((\old(methaneLevelCritical) != 0) || (0 < methaneLevelCritical)) && ((((pumpRunning == 0) && (1 <= \old(methaneLevelCritical))) && (1 == systemActive)) || ((\old(methaneLevelCritical) == 0) && (1 == systemActive)))) && ((methaneLevelCritical == 0) || (\old(methaneLevelCritical) < 1))) - ProcedureContractResult [Line: 339]: Procedure Contract for timeShift Derived contract for procedure timeShift. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((((1 < \old(waterLevel)) || (waterLevel < 2)) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) && ((\old(pumpRunning) != 0) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 237]: Procedure Contract for cleanup Derived contract for procedure cleanup. Requires: 0 Ensures: 0 - ProcedureContractResult [Line: 134]: Procedure Contract for isMethaneLevelCritical Derived contract for procedure isMethaneLevelCritical. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: ((((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) && (\result == methaneLevelCritical)) - ProcedureContractResult [Line: 371]: Procedure Contract for processEnvironment__wrappee__highWaterSensor Derived contract for procedure processEnvironment__wrappee__highWaterSensor. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) && ((pumpRunning == \old(pumpRunning)) || (1 < waterLevel))) - ProcedureContractResult [Line: 110]: Procedure Contract for waterRise Derived contract for procedure waterRise. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: ((((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) && ((\old(waterLevel) < 2) || (\old(waterLevel) == waterLevel))) - ProcedureContractResult [Line: 397]: Procedure Contract for processEnvironment__wrappee__methaneQuery Derived contract for procedure processEnvironment__wrappee__methaneQuery. Requires: (((methaneLevelCritical == 0) && (1 == systemActive)) || (((pumpRunning == 0) && (1 <= methaneLevelCritical)) && (1 == systemActive))) Ensures: (((((methaneLevelCritical == 0) && (1 == systemActive)) || (((1 <= methaneLevelCritical) && (1 == systemActive)) && (\old(pumpRunning) == 0))) && (((pumpRunning == \old(pumpRunning)) || (pumpRunning == 0)) || (1 < waterLevel))) && ((pumpRunning == 0) || (methaneLevelCritical < 1))) - ProcedureContractResult [Line: 481]: Procedure Contract for isMethaneAlarm Derived contract for procedure isMethaneAlarm. Requires: (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive))) Ensures: (((methaneLevelCritical < ((long long) \result + 1)) || (methaneLevelCritical < 1)) && (((1 <= methaneLevelCritical) && (1 == systemActive)) || ((methaneLevelCritical == 0) && (1 == systemActive)))) RESULT: Ultimate proved your program to be correct! [2024-10-14 03:07:54,284 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE