./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product27.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 6cc96375562d846fbf28439914184b0f5b3d70ee1197dff8e1988bf2754bc90e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 13:57:39,141 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 13:57:39,199 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 13:57:39,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 13:57:39,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 13:57:39,231 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 13:57:39,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 13:57:39,233 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 13:57:39,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 13:57:39,234 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 13:57:39,234 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 13:57:39,234 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 13:57:39,235 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 13:57:39,235 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 13:57:39,236 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 13:57:39,236 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 13:57:39,237 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 13:57:39,237 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 13:57:39,237 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 13:57:39,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 13:57:39,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 13:57:39,241 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 13:57:39,242 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 13:57:39,242 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 13:57:39,242 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 13:57:39,242 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 13:57:39,243 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 13:57:39,243 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 13:57:39,243 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 13:57:39,244 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 13:57:39,244 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 13:57:39,248 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 13:57:39,248 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:39,248 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 13:57:39,248 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 13:57:39,249 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 13:57:39,249 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 13:57:39,249 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 13:57:39,249 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 13:57:39,250 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 13:57:39,250 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 13:57:39,251 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 13:57:39,251 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6cc96375562d846fbf28439914184b0f5b3d70ee1197dff8e1988bf2754bc90e [2024-11-18 13:57:39,538 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 13:57:39,567 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 13:57:39,570 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 13:57:39,572 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 13:57:39,572 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 13:57:39,573 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2024-11-18 13:57:41,052 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 13:57:41,360 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 13:57:41,360 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c [2024-11-18 13:57:41,389 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1bf957d/2c39a7c9e57747ce90a55429adbd4836/FLAG775652dc4 [2024-11-18 13:57:41,402 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/da1bf957d/2c39a7c9e57747ce90a55429adbd4836 [2024-11-18 13:57:41,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 13:57:41,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 13:57:41,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:41,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 13:57:41,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 13:57:41,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:41" (1/1) ... [2024-11-18 13:57:41,417 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37b98bda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:41, skipping insertion in model container [2024-11-18 13:57:41,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 01:57:41" (1/1) ... [2024-11-18 13:57:41,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 13:57:41,705 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2024-11-18 13:57:42,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:42,086 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 13:57:42,099 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [48] [2024-11-18 13:57:42,100 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [57] [2024-11-18 13:57:42,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1620] [2024-11-18 13:57:42,101 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1975] [2024-11-18 13:57:42,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2066] [2024-11-18 13:57:42,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2432] [2024-11-18 13:57:42,102 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [2467] [2024-11-18 13:57:42,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [2481] [2024-11-18 13:57:42,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2517] [2024-11-18 13:57:42,103 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2635] [2024-11-18 13:57:42,110 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product27.cil.c[1546,1559] [2024-11-18 13:57:42,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 13:57:42,238 INFO L204 MainTranslator]: Completed translation [2024-11-18 13:57:42,238 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42 WrapperNode [2024-11-18 13:57:42,238 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 13:57:42,239 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:42,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 13:57:42,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 13:57:42,247 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,348 INFO L138 Inliner]: procedures = 92, calls = 335, calls flagged for inlining = 28, calls inlined = 25, statements flattened = 1094 [2024-11-18 13:57:42,348 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 13:57:42,349 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 13:57:42,349 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 13:57:42,349 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 13:57:42,361 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,362 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,367 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,401 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2024-11-18 13:57:42,401 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,402 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,418 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,431 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,438 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,448 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,467 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 13:57:42,468 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 13:57:42,468 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 13:57:42,468 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 13:57:42,469 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (1/1) ... [2024-11-18 13:57:42,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 13:57:42,493 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:42,518 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 13:57:42,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 13:57:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 13:57:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2024-11-18 13:57:42,602 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2024-11-18 13:57:42,602 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2024-11-18 13:57:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2024-11-18 13:57:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2024-11-18 13:57:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2024-11-18 13:57:42,603 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2024-11-18 13:57:42,603 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2024-11-18 13:57:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2024-11-18 13:57:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2024-11-18 13:57:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2024-11-18 13:57:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2024-11-18 13:57:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2024-11-18 13:57:42,604 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2024-11-18 13:57:42,604 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2024-11-18 13:57:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2024-11-18 13:57:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2024-11-18 13:57:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2024-11-18 13:57:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2024-11-18 13:57:42,606 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2024-11-18 13:57:42,606 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2024-11-18 13:57:42,607 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2024-11-18 13:57:42,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-18 13:57:42,608 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-18 13:57:42,610 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-18 13:57:42,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-18 13:57:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-18 13:57:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-18 13:57:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-18 13:57:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-18 13:57:42,612 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2024-11-18 13:57:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2024-11-18 13:57:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2024-11-18 13:57:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2024-11-18 13:57:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2024-11-18 13:57:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2024-11-18 13:57:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 13:57:42,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 13:57:42,613 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2024-11-18 13:57:42,614 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2024-11-18 13:57:42,862 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 13:57:42,865 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 13:57:44,089 INFO L? ?]: Removed 452 outVars from TransFormulas that were not future-live. [2024-11-18 13:57:44,089 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 13:57:44,132 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 13:57:44,133 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 13:57:44,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:44 BoogieIcfgContainer [2024-11-18 13:57:44,133 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 13:57:44,136 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 13:57:44,137 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 13:57:44,140 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 13:57:44,140 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 01:57:41" (1/3) ... [2024-11-18 13:57:44,141 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff336d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:44, skipping insertion in model container [2024-11-18 13:57:44,141 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 01:57:42" (2/3) ... [2024-11-18 13:57:44,142 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ff336d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 01:57:44, skipping insertion in model container [2024-11-18 13:57:44,142 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 01:57:44" (3/3) ... [2024-11-18 13:57:44,143 INFO L112 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product27.cil.c [2024-11-18 13:57:44,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 13:57:44,157 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 13:57:44,259 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 13:57:44,268 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;@3d5e66e4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 13:57:44,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 13:57:44,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 541 states, 423 states have (on average 1.6784869976359338) internal successors, (710), 439 states have internal predecessors, (710), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2024-11-18 13:57:44,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-18 13:57:44,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:44,318 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:44,319 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:44,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:44,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1734862310, now seen corresponding path program 1 times [2024-11-18 13:57:44,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:44,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169138330] [2024-11-18 13:57:44,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:44,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:44,899 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:44,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:44,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169138330] [2024-11-18 13:57:44,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169138330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:44,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:44,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:44,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134174812] [2024-11-18 13:57:44,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:44,909 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:44,909 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:44,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:44,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:44,936 INFO L87 Difference]: Start difference. First operand has 541 states, 423 states have (on average 1.6784869976359338) internal successors, (710), 439 states have internal predecessors, (710), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:45,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:45,132 INFO L93 Difference]: Finished difference Result 1075 states and 1792 transitions. [2024-11-18 13:57:45,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:45,142 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2024-11-18 13:57:45,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:45,163 INFO L225 Difference]: With dead ends: 1075 [2024-11-18 13:57:45,164 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 13:57:45,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:45,175 INFO L432 NwaCegarLoop]: 879 mSDtfsCounter, 6 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2631 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:45,176 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2631 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:45,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 13:57:45,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-18 13:57:45,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 419 states have (on average 1.668257756563246) internal successors, (699), 434 states have internal predecessors, (699), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:45,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 884 transitions. [2024-11-18 13:57:45,288 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 884 transitions. Word has length 101 [2024-11-18 13:57:45,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:45,289 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 884 transitions. [2024-11-18 13:57:45,289 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:45,291 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 884 transitions. [2024-11-18 13:57:45,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-18 13:57:45,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:45,300 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:45,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 13:57:45,301 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:45,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:45,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1214197739, now seen corresponding path program 1 times [2024-11-18 13:57:45,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:45,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2070502941] [2024-11-18 13:57:45,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:45,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:45,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:45,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:45,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2070502941] [2024-11-18 13:57:45,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2070502941] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:45,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:45,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:45,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652685841] [2024-11-18 13:57:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:45,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:45,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:45,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:45,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,573 INFO L87 Difference]: Start difference. First operand 536 states and 884 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:45,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:45,662 INFO L93 Difference]: Finished difference Result 1055 states and 1745 transitions. [2024-11-18 13:57:45,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:45,663 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2024-11-18 13:57:45,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:45,672 INFO L225 Difference]: With dead ends: 1055 [2024-11-18 13:57:45,672 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 13:57:45,676 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,677 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 4 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:45,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2603 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:45,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 13:57:45,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-18 13:57:45,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 419 states have (on average 1.665871121718377) internal successors, (698), 434 states have internal predecessors, (698), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:45,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 883 transitions. [2024-11-18 13:57:45,736 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 883 transitions. Word has length 102 [2024-11-18 13:57:45,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:45,737 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 883 transitions. [2024-11-18 13:57:45,737 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:45,738 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 883 transitions. [2024-11-18 13:57:45,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2024-11-18 13:57:45,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:45,745 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:45,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 13:57:45,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:45,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:45,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1899905206, now seen corresponding path program 1 times [2024-11-18 13:57:45,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:45,747 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140608310] [2024-11-18 13:57:45,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:45,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:45,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:45,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:45,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140608310] [2024-11-18 13:57:45,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140608310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:45,944 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:45,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735207279] [2024-11-18 13:57:45,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:45,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:45,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:45,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:45,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:45,949 INFO L87 Difference]: Start difference. First operand 536 states and 883 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,021 INFO L93 Difference]: Finished difference Result 1055 states and 1744 transitions. [2024-11-18 13:57:46,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:46,022 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2024-11-18 13:57:46,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,026 INFO L225 Difference]: With dead ends: 1055 [2024-11-18 13:57:46,027 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 13:57:46,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,032 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 3 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,035 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2603 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 13:57:46,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-18 13:57:46,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 419 states have (on average 1.6634844868735084) internal successors, (697), 434 states have internal predecessors, (697), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:46,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 882 transitions. [2024-11-18 13:57:46,075 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 882 transitions. Word has length 103 [2024-11-18 13:57:46,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,077 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 882 transitions. [2024-11-18 13:57:46,077 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,078 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 882 transitions. [2024-11-18 13:57:46,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-18 13:57:46,083 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,083 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 13:57:46,084 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1141159367, now seen corresponding path program 1 times [2024-11-18 13:57:46,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836146505] [2024-11-18 13:57:46,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,220 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:46,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836146505] [2024-11-18 13:57:46,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836146505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:46,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713053164] [2024-11-18 13:57:46,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:46,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:46,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,225 INFO L87 Difference]: Start difference. First operand 536 states and 882 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,281 INFO L93 Difference]: Finished difference Result 1055 states and 1743 transitions. [2024-11-18 13:57:46,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:46,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2024-11-18 13:57:46,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,287 INFO L225 Difference]: With dead ends: 1055 [2024-11-18 13:57:46,287 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 13:57:46,292 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,293 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 2 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,293 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2603 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 13:57:46,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-18 13:57:46,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 419 states have (on average 1.6610978520286397) internal successors, (696), 434 states have internal predecessors, (696), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:46,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 881 transitions. [2024-11-18 13:57:46,320 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 881 transitions. Word has length 104 [2024-11-18 13:57:46,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,321 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 881 transitions. [2024-11-18 13:57:46,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,324 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 881 transitions. [2024-11-18 13:57:46,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-18 13:57:46,329 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,329 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 13:57:46,329 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1445965998, now seen corresponding path program 1 times [2024-11-18 13:57:46,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675860231] [2024-11-18 13:57:46,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,486 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:46,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675860231] [2024-11-18 13:57:46,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675860231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976466533] [2024-11-18 13:57:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,490 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:46,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:46,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,491 INFO L87 Difference]: Start difference. First operand 536 states and 881 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:46,544 INFO L93 Difference]: Finished difference Result 1055 states and 1742 transitions. [2024-11-18 13:57:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 13:57:46,545 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2024-11-18 13:57:46,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:46,550 INFO L225 Difference]: With dead ends: 1055 [2024-11-18 13:57:46,550 INFO L226 Difference]: Without dead ends: 536 [2024-11-18 13:57:46,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:46,555 INFO L432 NwaCegarLoop]: 870 mSDtfsCounter, 1 mSDsluCounter, 1733 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2603 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:46,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2603 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:46,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2024-11-18 13:57:46,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2024-11-18 13:57:46,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 536 states, 419 states have (on average 1.6587112171837708) internal successors, (695), 434 states have internal predecessors, (695), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:46,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 880 transitions. [2024-11-18 13:57:46,585 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 880 transitions. Word has length 105 [2024-11-18 13:57:46,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:46,586 INFO L471 AbstractCegarLoop]: Abstraction has 536 states and 880 transitions. [2024-11-18 13:57:46,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:46,586 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 880 transitions. [2024-11-18 13:57:46,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 13:57:46,590 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:46,590 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:46,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 13:57:46,590 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:46,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:46,591 INFO L85 PathProgramCache]: Analyzing trace with hash -583314525, now seen corresponding path program 1 times [2024-11-18 13:57:46,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:46,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082118029] [2024-11-18 13:57:46,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:46,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:46,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:46,836 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:46,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:46,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082118029] [2024-11-18 13:57:46,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082118029] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:46,838 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:46,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 13:57:46,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191318607] [2024-11-18 13:57:46,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:46,840 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:57:46,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:46,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:57:46,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:46,842 INFO L87 Difference]: Start difference. First operand 536 states and 880 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:46,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,000 INFO L93 Difference]: Finished difference Result 1066 states and 1759 transitions. [2024-11-18 13:57:47,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:57:47,001 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 106 [2024-11-18 13:57:47,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,006 INFO L225 Difference]: With dead ends: 1066 [2024-11-18 13:57:47,006 INFO L226 Difference]: Without dead ends: 551 [2024-11-18 13:57:47,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:47,012 INFO L432 NwaCegarLoop]: 865 mSDtfsCounter, 91 mSDsluCounter, 5968 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6833 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6833 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:47,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 551 states. [2024-11-18 13:57:47,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 551 to 549. [2024-11-18 13:57:47,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 549 states, 429 states have (on average 1.655011655011655) internal successors, (710), 446 states have internal predecessors, (710), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2024-11-18 13:57:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 549 states to 549 states and 900 transitions. [2024-11-18 13:57:47,047 INFO L78 Accepts]: Start accepts. Automaton has 549 states and 900 transitions. Word has length 106 [2024-11-18 13:57:47,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,048 INFO L471 AbstractCegarLoop]: Abstraction has 549 states and 900 transitions. [2024-11-18 13:57:47,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:47,048 INFO L276 IsEmpty]: Start isEmpty. Operand 549 states and 900 transitions. [2024-11-18 13:57:47,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-18 13:57:47,051 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,052 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 13:57:47,052 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,053 INFO L85 PathProgramCache]: Analyzing trace with hash 355217090, now seen corresponding path program 1 times [2024-11-18 13:57:47,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921168823] [2024-11-18 13:57:47,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,156 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:47,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921168823] [2024-11-18 13:57:47,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921168823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 13:57:47,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863135019] [2024-11-18 13:57:47,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:57:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:57:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-18 13:57:47,158 INFO L87 Difference]: Start difference. First operand 549 states and 900 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:47,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,214 INFO L93 Difference]: Finished difference Result 1073 states and 1770 transitions. [2024-11-18 13:57:47,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:57:47,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2024-11-18 13:57:47,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,219 INFO L225 Difference]: With dead ends: 1073 [2024-11-18 13:57:47,219 INFO L226 Difference]: Without dead ends: 545 [2024-11-18 13:57:47,222 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-18 13:57:47,223 INFO L432 NwaCegarLoop]: 868 mSDtfsCounter, 1 mSDsluCounter, 1730 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2598 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2598 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:47,227 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 545 states. [2024-11-18 13:57:47,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 545 to 545. [2024-11-18 13:57:47,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 545 states, 427 states have (on average 1.6557377049180328) internal successors, (707), 443 states have internal predecessors, (707), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 90 states have call predecessors, (93), 92 states have call successors, (93) [2024-11-18 13:57:47,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 545 states to 545 states and 893 transitions. [2024-11-18 13:57:47,250 INFO L78 Accepts]: Start accepts. Automaton has 545 states and 893 transitions. Word has length 106 [2024-11-18 13:57:47,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,251 INFO L471 AbstractCegarLoop]: Abstraction has 545 states and 893 transitions. [2024-11-18 13:57:47,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:47,251 INFO L276 IsEmpty]: Start isEmpty. Operand 545 states and 893 transitions. [2024-11-18 13:57:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-18 13:57:47,254 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,254 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,255 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 13:57:47,255 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,255 INFO L85 PathProgramCache]: Analyzing trace with hash -2053443708, now seen corresponding path program 1 times [2024-11-18 13:57:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541121435] [2024-11-18 13:57:47,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,430 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:47,430 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541121435] [2024-11-18 13:57:47,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541121435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:47,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560848693] [2024-11-18 13:57:47,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:47,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:47,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:47,433 INFO L87 Difference]: Start difference. First operand 545 states and 893 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:47,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:47,672 INFO L93 Difference]: Finished difference Result 1116 states and 1842 transitions. [2024-11-18 13:57:47,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:47,673 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2024-11-18 13:57:47,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:47,680 INFO L225 Difference]: With dead ends: 1116 [2024-11-18 13:57:47,680 INFO L226 Difference]: Without dead ends: 577 [2024-11-18 13:57:47,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:47,684 INFO L432 NwaCegarLoop]: 842 mSDtfsCounter, 72 mSDsluCounter, 3289 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4131 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:47,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4131 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:47,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2024-11-18 13:57:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 550. [2024-11-18 13:57:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 432 states have (on average 1.6412037037037037) internal successors, (709), 447 states have internal predecessors, (709), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:47,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 894 transitions. [2024-11-18 13:57:47,706 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 894 transitions. Word has length 107 [2024-11-18 13:57:47,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:47,707 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 894 transitions. [2024-11-18 13:57:47,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:47,707 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 894 transitions. [2024-11-18 13:57:47,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-18 13:57:47,709 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:47,709 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:47,710 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 13:57:47,710 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:47,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:47,710 INFO L85 PathProgramCache]: Analyzing trace with hash -1053588122, now seen corresponding path program 1 times [2024-11-18 13:57:47,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:47,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905463983] [2024-11-18 13:57:47,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:47,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:47,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:47,855 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:47,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:47,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905463983] [2024-11-18 13:57:47,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1905463983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:47,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:47,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:47,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636885454] [2024-11-18 13:57:47,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:47,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:47,857 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:47,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:47,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:47,857 INFO L87 Difference]: Start difference. First operand 550 states and 894 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:48,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,065 INFO L93 Difference]: Finished difference Result 1067 states and 1737 transitions. [2024-11-18 13:57:48,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:48,066 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2024-11-18 13:57:48,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,071 INFO L225 Difference]: With dead ends: 1067 [2024-11-18 13:57:48,071 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 13:57:48,074 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:48,075 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 56 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4108 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,075 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4108 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:48,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 13:57:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 550. [2024-11-18 13:57:48,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 432 states have (on average 1.6319444444444444) internal successors, (705), 447 states have internal predecessors, (705), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:48,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 890 transitions. [2024-11-18 13:57:48,096 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 890 transitions. Word has length 108 [2024-11-18 13:57:48,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,096 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 890 transitions. [2024-11-18 13:57:48,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:48,097 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 890 transitions. [2024-11-18 13:57:48,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 13:57:48,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,100 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 13:57:48,101 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1041820809, now seen corresponding path program 1 times [2024-11-18 13:57:48,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592151494] [2024-11-18 13:57:48,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:48,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592151494] [2024-11-18 13:57:48,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592151494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:48,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277150343] [2024-11-18 13:57:48,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:48,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:48,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:48,272 INFO L87 Difference]: Start difference. First operand 550 states and 890 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:48,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,464 INFO L93 Difference]: Finished difference Result 1067 states and 1733 transitions. [2024-11-18 13:57:48,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:48,465 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 109 [2024-11-18 13:57:48,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,470 INFO L225 Difference]: With dead ends: 1067 [2024-11-18 13:57:48,470 INFO L226 Difference]: Without dead ends: 568 [2024-11-18 13:57:48,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:48,473 INFO L432 NwaCegarLoop]: 830 mSDtfsCounter, 55 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4103 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 13:57:48,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2024-11-18 13:57:48,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 550. [2024-11-18 13:57:48,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 432 states have (on average 1.6226851851851851) internal successors, (701), 447 states have internal predecessors, (701), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:48,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 886 transitions. [2024-11-18 13:57:48,492 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 886 transitions. Word has length 109 [2024-11-18 13:57:48,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,492 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 886 transitions. [2024-11-18 13:57:48,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:48,493 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 886 transitions. [2024-11-18 13:57:48,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-18 13:57:48,495 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,495 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 13:57:48,496 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,496 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,496 INFO L85 PathProgramCache]: Analyzing trace with hash -1464940279, now seen corresponding path program 1 times [2024-11-18 13:57:48,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015752373] [2024-11-18 13:57:48,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,642 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:48,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1015752373] [2024-11-18 13:57:48,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1015752373] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-18 13:57:48,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640806414] [2024-11-18 13:57:48,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,643 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-18 13:57:48,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-18 13:57:48,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:48,644 INFO L87 Difference]: Start difference. First operand 550 states and 886 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:48,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:48,748 INFO L93 Difference]: Finished difference Result 1058 states and 1715 transitions. [2024-11-18 13:57:48,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 13:57:48,749 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 109 [2024-11-18 13:57:48,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:48,754 INFO L225 Difference]: With dead ends: 1058 [2024-11-18 13:57:48,754 INFO L226 Difference]: Without dead ends: 538 [2024-11-18 13:57:48,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:57:48,757 INFO L432 NwaCegarLoop]: 856 mSDtfsCounter, 94 mSDsluCounter, 4184 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5040 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:48,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5040 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:48,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-18 13:57:48,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 529. [2024-11-18 13:57:48,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 411 states have (on average 1.6155717761557178) internal successors, (664), 426 states have internal predecessors, (664), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:48,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 849 transitions. [2024-11-18 13:57:48,778 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 849 transitions. Word has length 109 [2024-11-18 13:57:48,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:48,778 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 849 transitions. [2024-11-18 13:57:48,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:48,779 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 849 transitions. [2024-11-18 13:57:48,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-18 13:57:48,782 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:48,782 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:48,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 13:57:48,783 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:48,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:48,783 INFO L85 PathProgramCache]: Analyzing trace with hash -1555322229, now seen corresponding path program 1 times [2024-11-18 13:57:48,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:48,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784679363] [2024-11-18 13:57:48,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:48,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:48,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:48,975 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:48,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:48,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784679363] [2024-11-18 13:57:48,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784679363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:48,976 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:48,976 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:48,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141518779] [2024-11-18 13:57:48,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:48,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:48,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:48,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:48,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:48,978 INFO L87 Difference]: Start difference. First operand 529 states and 849 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:49,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:49,089 INFO L93 Difference]: Finished difference Result 1037 states and 1678 transitions. [2024-11-18 13:57:49,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:49,090 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 110 [2024-11-18 13:57:49,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:49,095 INFO L225 Difference]: With dead ends: 1037 [2024-11-18 13:57:49,095 INFO L226 Difference]: Without dead ends: 538 [2024-11-18 13:57:49,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:49,099 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 39 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4108 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:49,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4108 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:49,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-18 13:57:49,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 529. [2024-11-18 13:57:49,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 411 states have (on average 1.6131386861313868) internal successors, (663), 426 states have internal predecessors, (663), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 848 transitions. [2024-11-18 13:57:49,120 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 848 transitions. Word has length 110 [2024-11-18 13:57:49,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:49,120 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 848 transitions. [2024-11-18 13:57:49,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:49,121 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 848 transitions. [2024-11-18 13:57:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-18 13:57:49,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:49,123 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:49,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 13:57:49,124 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:49,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:49,124 INFO L85 PathProgramCache]: Analyzing trace with hash 702279054, now seen corresponding path program 1 times [2024-11-18 13:57:49,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:49,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171918773] [2024-11-18 13:57:49,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:49,267 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:49,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:49,268 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171918773] [2024-11-18 13:57:49,268 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171918773] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:49,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:49,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-18 13:57:49,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181342998] [2024-11-18 13:57:49,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:49,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:49,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:49,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:49,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-18 13:57:49,270 INFO L87 Difference]: Start difference. First operand 529 states and 848 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:49,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:49,399 INFO L93 Difference]: Finished difference Result 1037 states and 1677 transitions. [2024-11-18 13:57:49,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:49,399 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 111 [2024-11-18 13:57:49,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:49,405 INFO L225 Difference]: With dead ends: 1037 [2024-11-18 13:57:49,405 INFO L226 Difference]: Without dead ends: 538 [2024-11-18 13:57:49,409 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:49,410 INFO L432 NwaCegarLoop]: 831 mSDtfsCounter, 38 mSDsluCounter, 3277 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4108 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:49,411 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4108 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:49,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2024-11-18 13:57:49,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 529. [2024-11-18 13:57:49,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 529 states, 411 states have (on average 1.610705596107056) internal successors, (662), 426 states have internal predecessors, (662), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:49,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 529 states to 529 states and 847 transitions. [2024-11-18 13:57:49,441 INFO L78 Accepts]: Start accepts. Automaton has 529 states and 847 transitions. Word has length 111 [2024-11-18 13:57:49,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:49,442 INFO L471 AbstractCegarLoop]: Abstraction has 529 states and 847 transitions. [2024-11-18 13:57:49,442 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-18 13:57:49,442 INFO L276 IsEmpty]: Start isEmpty. Operand 529 states and 847 transitions. [2024-11-18 13:57:49,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-18 13:57:49,446 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:49,446 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:49,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 13:57:49,446 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:49,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:49,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1161868368, now seen corresponding path program 1 times [2024-11-18 13:57:49,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:49,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737434006] [2024-11-18 13:57:49,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:49,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:49,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:49,693 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-18 13:57:49,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:49,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737434006] [2024-11-18 13:57:49,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737434006] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:49,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:57:49,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 13:57:49,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294768386] [2024-11-18 13:57:49,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:49,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 13:57:49,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:49,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 13:57:49,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:49,696 INFO L87 Difference]: Start difference. First operand 529 states and 847 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:49,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:49,861 INFO L93 Difference]: Finished difference Result 1027 states and 1659 transitions. [2024-11-18 13:57:49,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 13:57:49,862 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 112 [2024-11-18 13:57:49,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:49,866 INFO L225 Difference]: With dead ends: 1027 [2024-11-18 13:57:49,866 INFO L226 Difference]: Without dead ends: 534 [2024-11-18 13:57:49,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:57:49,869 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 21 mSDsluCounter, 6393 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7196 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:49,869 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7196 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:57:49,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-18 13:57:49,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 531. [2024-11-18 13:57:49,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 413 states have (on average 1.6053268765133173) internal successors, (663), 428 states have internal predecessors, (663), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2024-11-18 13:57:49,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 848 transitions. [2024-11-18 13:57:49,887 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 848 transitions. Word has length 112 [2024-11-18 13:57:49,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:49,887 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 848 transitions. [2024-11-18 13:57:49,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-18 13:57:49,888 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 848 transitions. [2024-11-18 13:57:49,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 13:57:49,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:49,890 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:49,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 13:57:49,890 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:49,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:49,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1052870499, now seen corresponding path program 1 times [2024-11-18 13:57:49,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:49,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678612068] [2024-11-18 13:57:49,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:49,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:49,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,039 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 13:57:50,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678612068] [2024-11-18 13:57:50,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678612068] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:50,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953085842] [2024-11-18 13:57:50,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:50,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:50,041 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:50,042 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:50,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 13:57:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:57:50,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:50,375 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-18 13:57:50,376 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:50,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953085842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:50,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:50,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-18 13:57:50,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113351986] [2024-11-18 13:57:50,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:50,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:57:50,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:50,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:57:50,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:50,378 INFO L87 Difference]: Start difference. First operand 531 states and 848 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:50,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:50,445 INFO L93 Difference]: Finished difference Result 1502 states and 2465 transitions. [2024-11-18 13:57:50,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:57:50,446 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-18 13:57:50,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:50,453 INFO L225 Difference]: With dead ends: 1502 [2024-11-18 13:57:50,453 INFO L226 Difference]: Without dead ends: 1014 [2024-11-18 13:57:50,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-18 13:57:50,457 INFO L432 NwaCegarLoop]: 898 mSDtfsCounter, 826 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 1680 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:50,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [826 Valid, 1680 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:57:50,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1014 states. [2024-11-18 13:57:50,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1014 to 1007. [2024-11-18 13:57:50,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1007 states, 783 states have (on average 1.6257982120051087) internal successors, (1273), 811 states have internal predecessors, (1273), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2024-11-18 13:57:50,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1007 states to 1007 states and 1639 transitions. [2024-11-18 13:57:50,500 INFO L78 Accepts]: Start accepts. Automaton has 1007 states and 1639 transitions. Word has length 113 [2024-11-18 13:57:50,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:50,501 INFO L471 AbstractCegarLoop]: Abstraction has 1007 states and 1639 transitions. [2024-11-18 13:57:50,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:50,501 INFO L276 IsEmpty]: Start isEmpty. Operand 1007 states and 1639 transitions. [2024-11-18 13:57:50,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-18 13:57:50,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:50,504 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:50,524 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 13:57:50,708 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,SelfDestructingSolverStorable14 [2024-11-18 13:57:50,709 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:50,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:50,710 INFO L85 PathProgramCache]: Analyzing trace with hash 990830885, now seen corresponding path program 1 times [2024-11-18 13:57:50,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:50,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605681535] [2024-11-18 13:57:50,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:50,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:50,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:50,831 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 13:57:50,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605681535] [2024-11-18 13:57:50,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605681535] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656078928] [2024-11-18 13:57:50,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:50,832 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:50,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:50,834 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:50,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 13:57:51,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:51,175 INFO L255 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:51,179 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:51,309 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-18 13:57:51,310 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:51,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656078928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:51,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:51,310 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:51,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174108315] [2024-11-18 13:57:51,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:51,311 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:51,311 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:51,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:51,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:51,312 INFO L87 Difference]: Start difference. First operand 1007 states and 1639 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:51,894 INFO L93 Difference]: Finished difference Result 1987 states and 3307 transitions. [2024-11-18 13:57:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:51,895 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2024-11-18 13:57:51,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:51,902 INFO L225 Difference]: With dead ends: 1987 [2024-11-18 13:57:51,903 INFO L226 Difference]: Without dead ends: 1023 [2024-11-18 13:57:51,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:51,911 INFO L432 NwaCegarLoop]: 809 mSDtfsCounter, 793 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2063 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:51,911 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 2063 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:51,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1023 states. [2024-11-18 13:57:51,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1023 to 1023. [2024-11-18 13:57:51,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1023 states, 797 states have (on average 1.6273525721455457) internal successors, (1297), 825 states have internal predecessors, (1297), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2024-11-18 13:57:51,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1023 states to 1023 states and 1665 transitions. [2024-11-18 13:57:51,962 INFO L78 Accepts]: Start accepts. Automaton has 1023 states and 1665 transitions. Word has length 113 [2024-11-18 13:57:51,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:51,963 INFO L471 AbstractCegarLoop]: Abstraction has 1023 states and 1665 transitions. [2024-11-18 13:57:51,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:51,963 INFO L276 IsEmpty]: Start isEmpty. Operand 1023 states and 1665 transitions. [2024-11-18 13:57:51,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2024-11-18 13:57:51,966 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:51,966 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:51,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:52,170 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,SelfDestructingSolverStorable15 [2024-11-18 13:57:52,171 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:52,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:52,171 INFO L85 PathProgramCache]: Analyzing trace with hash 376417716, now seen corresponding path program 1 times [2024-11-18 13:57:52,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:52,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145694882] [2024-11-18 13:57:52,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,296 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 13:57:52,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:52,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145694882] [2024-11-18 13:57:52,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145694882] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:52,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [277940296] [2024-11-18 13:57:52,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:52,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:52,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:52,299 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:52,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-18 13:57:52,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:52,664 INFO L255 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:52,672 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-18 13:57:52,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:52,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [277940296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:52,786 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:52,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989171242] [2024-11-18 13:57:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:52,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:52,788 INFO L87 Difference]: Start difference. First operand 1023 states and 1665 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:53,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:53,330 INFO L93 Difference]: Finished difference Result 2019 states and 3353 transitions. [2024-11-18 13:57:53,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:53,331 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 116 [2024-11-18 13:57:53,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:53,338 INFO L225 Difference]: With dead ends: 2019 [2024-11-18 13:57:53,338 INFO L226 Difference]: Without dead ends: 1039 [2024-11-18 13:57:53,345 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:53,346 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 787 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2060 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:53,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2060 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1039 states. [2024-11-18 13:57:53,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1039 to 1039. [2024-11-18 13:57:53,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1039 states, 811 states have (on average 1.6288532675709002) internal successors, (1321), 839 states have internal predecessors, (1321), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2024-11-18 13:57:53,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1039 states to 1039 states and 1691 transitions. [2024-11-18 13:57:53,389 INFO L78 Accepts]: Start accepts. Automaton has 1039 states and 1691 transitions. Word has length 116 [2024-11-18 13:57:53,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:53,389 INFO L471 AbstractCegarLoop]: Abstraction has 1039 states and 1691 transitions. [2024-11-18 13:57:53,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:53,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1039 states and 1691 transitions. [2024-11-18 13:57:53,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-18 13:57:53,392 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:53,392 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:53,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-18 13:57:53,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:53,593 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:53,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:53,594 INFO L85 PathProgramCache]: Analyzing trace with hash 465183553, now seen corresponding path program 1 times [2024-11-18 13:57:53,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:53,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399793139] [2024-11-18 13:57:53,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:53,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:53,713 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 13:57:53,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399793139] [2024-11-18 13:57:53,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399793139] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:53,714 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232679933] [2024-11-18 13:57:53,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:53,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:53,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:53,716 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:53,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-18 13:57:54,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:54,017 INFO L255 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:54,024 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:54,185 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-18 13:57:54,186 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:54,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232679933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:54,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:54,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:54,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107115078] [2024-11-18 13:57:54,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:54,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:54,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:54,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:54,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:54,188 INFO L87 Difference]: Start difference. First operand 1039 states and 1691 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:54,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:54,786 INFO L93 Difference]: Finished difference Result 2051 states and 3399 transitions. [2024-11-18 13:57:54,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:54,787 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 119 [2024-11-18 13:57:54,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:54,797 INFO L225 Difference]: With dead ends: 2051 [2024-11-18 13:57:54,797 INFO L226 Difference]: Without dead ends: 1055 [2024-11-18 13:57:54,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:54,808 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 781 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 2057 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:54,809 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [791 Valid, 2057 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:54,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1055 states. [2024-11-18 13:57:54,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1055 to 1055. [2024-11-18 13:57:54,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1055 states, 825 states have (on average 1.6303030303030304) internal successors, (1345), 853 states have internal predecessors, (1345), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2024-11-18 13:57:54,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1055 states to 1055 states and 1717 transitions. [2024-11-18 13:57:54,869 INFO L78 Accepts]: Start accepts. Automaton has 1055 states and 1717 transitions. Word has length 119 [2024-11-18 13:57:54,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:54,870 INFO L471 AbstractCegarLoop]: Abstraction has 1055 states and 1717 transitions. [2024-11-18 13:57:54,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:54,873 INFO L276 IsEmpty]: Start isEmpty. Operand 1055 states and 1717 transitions. [2024-11-18 13:57:54,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-18 13:57:54,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:54,876 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:54,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-18 13:57:55,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-18 13:57:55,078 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:55,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:55,078 INFO L85 PathProgramCache]: Analyzing trace with hash 558666888, now seen corresponding path program 1 times [2024-11-18 13:57:55,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:55,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387905369] [2024-11-18 13:57:55,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:55,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,214 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-18 13:57:55,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:55,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387905369] [2024-11-18 13:57:55,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387905369] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:55,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506946607] [2024-11-18 13:57:55,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:55,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:55,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:55,218 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:55,219 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-18 13:57:55,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:55,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-18 13:57:55,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:55,618 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-11-18 13:57:55,620 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:55,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506946607] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:55,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:55,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2024-11-18 13:57:55,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780292972] [2024-11-18 13:57:55,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:55,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:55,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:55,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:55,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-18 13:57:55,623 INFO L87 Difference]: Start difference. First operand 1055 states and 1717 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:56,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:56,152 INFO L93 Difference]: Finished difference Result 2083 states and 3445 transitions. [2024-11-18 13:57:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:56,152 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 122 [2024-11-18 13:57:56,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:56,160 INFO L225 Difference]: With dead ends: 2083 [2024-11-18 13:57:56,160 INFO L226 Difference]: Without dead ends: 1071 [2024-11-18 13:57:56,168 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:57:56,168 INFO L432 NwaCegarLoop]: 800 mSDtfsCounter, 774 mSDsluCounter, 1254 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:56,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 2054 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:56,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1071 states. [2024-11-18 13:57:56,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1071 to 1071. [2024-11-18 13:57:56,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1071 states, 839 states have (on average 1.631704410011919) internal successors, (1369), 867 states have internal predecessors, (1369), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2024-11-18 13:57:56,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1071 states to 1071 states and 1743 transitions. [2024-11-18 13:57:56,262 INFO L78 Accepts]: Start accepts. Automaton has 1071 states and 1743 transitions. Word has length 122 [2024-11-18 13:57:56,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:56,262 INFO L471 AbstractCegarLoop]: Abstraction has 1071 states and 1743 transitions. [2024-11-18 13:57:56,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-11-18 13:57:56,262 INFO L276 IsEmpty]: Start isEmpty. Operand 1071 states and 1743 transitions. [2024-11-18 13:57:56,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2024-11-18 13:57:56,266 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:56,266 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:56,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-18 13:57:56,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:56,467 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:56,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:56,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1426636637, now seen corresponding path program 1 times [2024-11-18 13:57:56,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:56,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650605147] [2024-11-18 13:57:56,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:56,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:56,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:56,725 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-18 13:57:56,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:56,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650605147] [2024-11-18 13:57:56,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650605147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:56,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387477233] [2024-11-18 13:57:56,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:56,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:56,726 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:56,728 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:56,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-18 13:57:57,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:57,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-18 13:57:57,009 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:57,184 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-18 13:57:57,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:57,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387477233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:57,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:57,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2024-11-18 13:57:57,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903629759] [2024-11-18 13:57:57,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:57,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 13:57:57,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:57,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 13:57:57,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:57:57,187 INFO L87 Difference]: Start difference. First operand 1071 states and 1743 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 13:57:57,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:57,775 INFO L93 Difference]: Finished difference Result 2109 states and 3461 transitions. [2024-11-18 13:57:57,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 13:57:57,775 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 125 [2024-11-18 13:57:57,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:57,787 INFO L225 Difference]: With dead ends: 2109 [2024-11-18 13:57:57,787 INFO L226 Difference]: Without dead ends: 1081 [2024-11-18 13:57:57,793 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-18 13:57:57,795 INFO L432 NwaCegarLoop]: 859 mSDtfsCounter, 742 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 613 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 622 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 613 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:57,795 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 3579 Invalid, 622 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 613 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 13:57:57,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1081 states. [2024-11-18 13:57:57,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1081 to 1074. [2024-11-18 13:57:57,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1074 states, 841 states have (on average 1.6302021403091558) internal successors, (1371), 870 states have internal predecessors, (1371), 178 states have call successors, (178), 54 states have call predecessors, (178), 54 states have return successors, (197), 175 states have call predecessors, (197), 176 states have call successors, (197) [2024-11-18 13:57:57,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1746 transitions. [2024-11-18 13:57:57,871 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1746 transitions. Word has length 125 [2024-11-18 13:57:57,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:57,872 INFO L471 AbstractCegarLoop]: Abstraction has 1074 states and 1746 transitions. [2024-11-18 13:57:57,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-18 13:57:57,872 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1746 transitions. [2024-11-18 13:57:57,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-18 13:57:57,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:57,875 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:57,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-18 13:57:58,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:58,077 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:58,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:58,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1573741603, now seen corresponding path program 1 times [2024-11-18 13:57:58,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:58,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981057653] [2024-11-18 13:57:58,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:58,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:58,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:57:58,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:58,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1981057653] [2024-11-18 13:57:58,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1981057653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:58,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1925376998] [2024-11-18 13:57:58,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:58,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:58,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:58,396 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:58,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-18 13:57:58,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:58,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-18 13:57:58,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:57:58,830 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:57:58,831 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:57:58,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1925376998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:57:58,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:57:58,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-18 13:57:58,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902502482] [2024-11-18 13:57:58,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:57:58,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:57:58,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:57:58,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:57:58,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:57:58,835 INFO L87 Difference]: Start difference. First operand 1074 states and 1746 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 13:57:59,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:57:59,258 INFO L93 Difference]: Finished difference Result 2123 states and 3499 transitions. [2024-11-18 13:57:59,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 13:57:59,258 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2024-11-18 13:57:59,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:57:59,266 INFO L225 Difference]: With dead ends: 2123 [2024-11-18 13:57:59,266 INFO L226 Difference]: Without dead ends: 1092 [2024-11-18 13:57:59,271 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2024-11-18 13:57:59,271 INFO L432 NwaCegarLoop]: 905 mSDtfsCounter, 757 mSDsluCounter, 2393 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 757 SdHoareTripleChecker+Valid, 3298 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 13:57:59,272 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [757 Valid, 3298 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 13:57:59,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1092 states. [2024-11-18 13:57:59,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1092 to 1084. [2024-11-18 13:57:59,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 847 states have (on average 1.6257378984651711) internal successors, (1377), 879 states have internal predecessors, (1377), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2024-11-18 13:57:59,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1764 transitions. [2024-11-18 13:57:59,312 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1764 transitions. Word has length 127 [2024-11-18 13:57:59,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:57:59,313 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1764 transitions. [2024-11-18 13:57:59,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2024-11-18 13:57:59,313 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1764 transitions. [2024-11-18 13:57:59,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 13:57:59,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:57:59,317 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:57:59,336 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-18 13:57:59,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:59,518 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:57:59,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:57:59,518 INFO L85 PathProgramCache]: Analyzing trace with hash 292529749, now seen corresponding path program 1 times [2024-11-18 13:57:59,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:57:59,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318117227] [2024-11-18 13:57:59,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:59,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:57:59,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:57:59,863 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:57:59,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:57:59,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318117227] [2024-11-18 13:57:59,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318117227] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:57:59,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550757030] [2024-11-18 13:57:59,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:57:59,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:57:59,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:57:59,866 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:57:59,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-18 13:58:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:00,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-18 13:58:00,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:00,177 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:00,178 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:00,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550757030] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:00,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:00,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2024-11-18 13:58:00,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133854744] [2024-11-18 13:58:00,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:00,179 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:00,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:00,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:00,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:00,180 INFO L87 Difference]: Start difference. First operand 1084 states and 1764 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:00,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:00,254 INFO L93 Difference]: Finished difference Result 2636 states and 4359 transitions. [2024-11-18 13:58:00,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:00,254 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-18 13:58:00,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:00,264 INFO L225 Difference]: With dead ends: 2636 [2024-11-18 13:58:00,265 INFO L226 Difference]: Without dead ends: 1596 [2024-11-18 13:58:00,269 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:00,269 INFO L432 NwaCegarLoop]: 1587 mSDtfsCounter, 786 mSDsluCounter, 821 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 786 SdHoareTripleChecker+Valid, 2408 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:00,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [786 Valid, 2408 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:00,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1596 states. [2024-11-18 13:58:00,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1596 to 1084. [2024-11-18 13:58:00,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1084 states, 847 states have (on average 1.6245572609208974) internal successors, (1376), 879 states have internal predecessors, (1376), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2024-11-18 13:58:00,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1084 states to 1084 states and 1763 transitions. [2024-11-18 13:58:00,323 INFO L78 Accepts]: Start accepts. Automaton has 1084 states and 1763 transitions. Word has length 132 [2024-11-18 13:58:00,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:00,324 INFO L471 AbstractCegarLoop]: Abstraction has 1084 states and 1763 transitions. [2024-11-18 13:58:00,325 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:00,325 INFO L276 IsEmpty]: Start isEmpty. Operand 1084 states and 1763 transitions. [2024-11-18 13:58:00,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 13:58:00,328 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:00,328 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:00,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-18 13:58:00,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-18 13:58:00,529 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:00,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:00,529 INFO L85 PathProgramCache]: Analyzing trace with hash 994129623, now seen corresponding path program 1 times [2024-11-18 13:58:00,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:00,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145513900] [2024-11-18 13:58:00,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:00,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:00,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:00,822 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:58:00,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:00,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145513900] [2024-11-18 13:58:00,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145513900] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:00,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1924600016] [2024-11-18 13:58:00,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:00,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:00,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:00,826 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:00,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-18 13:58:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:01,144 INFO L255 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 13:58:01,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:01,259 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:01,260 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:01,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1924600016] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:01,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:01,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2024-11-18 13:58:01,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183745362] [2024-11-18 13:58:01,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:01,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 13:58:01,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:01,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 13:58:01,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:01,262 INFO L87 Difference]: Start difference. First operand 1084 states and 1763 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:01,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:01,359 INFO L93 Difference]: Finished difference Result 2698 states and 4414 transitions. [2024-11-18 13:58:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:01,360 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-18 13:58:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:01,371 INFO L225 Difference]: With dead ends: 2698 [2024-11-18 13:58:01,371 INFO L226 Difference]: Without dead ends: 1659 [2024-11-18 13:58:01,376 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:58:01,376 INFO L432 NwaCegarLoop]: 903 mSDtfsCounter, 345 mSDsluCounter, 2630 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 3533 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:01,377 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 3533 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:01,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2024-11-18 13:58:01,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2024-11-18 13:58:01,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1301 states have (on average 1.5995388162951576) internal successors, (2081), 1338 states have internal predecessors, (2081), 264 states have call successors, (264), 91 states have call predecessors, (264), 93 states have return successors, (343), 255 states have call predecessors, (343), 260 states have call successors, (343) [2024-11-18 13:58:01,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2688 transitions. [2024-11-18 13:58:01,448 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2688 transitions. Word has length 132 [2024-11-18 13:58:01,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:01,449 INFO L471 AbstractCegarLoop]: Abstraction has 1659 states and 2688 transitions. [2024-11-18 13:58:01,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:01,449 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2688 transitions. [2024-11-18 13:58:01,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-18 13:58:01,453 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:01,454 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:01,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:01,654 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:01,655 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:01,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:01,655 INFO L85 PathProgramCache]: Analyzing trace with hash -222024103, now seen corresponding path program 1 times [2024-11-18 13:58:01,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:01,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796483480] [2024-11-18 13:58:01,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:01,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:01,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:01,868 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:58:01,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:01,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796483480] [2024-11-18 13:58:01,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796483480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:01,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [883310691] [2024-11-18 13:58:01,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:01,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:01,869 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:01,871 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:01,873 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-18 13:58:02,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:02,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-18 13:58:02,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:02,278 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-18 13:58:02,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:02,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [883310691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:02,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:02,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2024-11-18 13:58:02,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794300815] [2024-11-18 13:58:02,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:02,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 13:58:02,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:02,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 13:58:02,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:02,281 INFO L87 Difference]: Start difference. First operand 1659 states and 2688 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:02,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:02,351 INFO L93 Difference]: Finished difference Result 3023 states and 4891 transitions. [2024-11-18 13:58:02,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 13:58:02,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2024-11-18 13:58:02,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:02,362 INFO L225 Difference]: With dead ends: 3023 [2024-11-18 13:58:02,363 INFO L226 Difference]: Without dead ends: 1409 [2024-11-18 13:58:02,370 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:02,371 INFO L432 NwaCegarLoop]: 934 mSDtfsCounter, 549 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:02,371 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [549 Valid, 1325 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 13:58:02,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1409 states. [2024-11-18 13:58:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1409 to 1409. [2024-11-18 13:58:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1409 states, 1103 states have (on average 1.5811423390752493) internal successors, (1744), 1131 states have internal predecessors, (1744), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-18 13:58:02,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1409 states to 1409 states and 2246 transitions. [2024-11-18 13:58:02,429 INFO L78 Accepts]: Start accepts. Automaton has 1409 states and 2246 transitions. Word has length 132 [2024-11-18 13:58:02,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:02,430 INFO L471 AbstractCegarLoop]: Abstraction has 1409 states and 2246 transitions. [2024-11-18 13:58:02,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2024-11-18 13:58:02,430 INFO L276 IsEmpty]: Start isEmpty. Operand 1409 states and 2246 transitions. [2024-11-18 13:58:02,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-18 13:58:02,434 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:02,434 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:02,453 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:02,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-18 13:58:02,639 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:02,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:02,639 INFO L85 PathProgramCache]: Analyzing trace with hash -1900436121, now seen corresponding path program 1 times [2024-11-18 13:58:02,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:02,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354225320] [2024-11-18 13:58:02,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:02,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:02,872 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-18 13:58:02,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354225320] [2024-11-18 13:58:02,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354225320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:02,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1836713056] [2024-11-18 13:58:02,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:02,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:02,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:02,875 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:02,876 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-18 13:58:03,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:03,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:03,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:03,184 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-18 13:58:03,184 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:03,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1836713056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:03,184 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:03,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-18 13:58:03,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128922022] [2024-11-18 13:58:03,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:03,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:03,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:03,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:03,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:03,186 INFO L87 Difference]: Start difference. First operand 1409 states and 2246 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:03,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:03,380 INFO L93 Difference]: Finished difference Result 2863 states and 4624 transitions. [2024-11-18 13:58:03,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:03,380 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2024-11-18 13:58:03,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:03,392 INFO L225 Difference]: With dead ends: 2863 [2024-11-18 13:58:03,392 INFO L226 Difference]: Without dead ends: 1499 [2024-11-18 13:58:03,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:03,399 INFO L432 NwaCegarLoop]: 767 mSDtfsCounter, 144 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2278 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:03,399 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2278 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:03,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-11-18 13:58:03,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1487. [2024-11-18 13:58:03,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1179 states have (on average 1.6030534351145038) internal successors, (1890), 1207 states have internal predecessors, (1890), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-18 13:58:03,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 2392 transitions. [2024-11-18 13:58:03,459 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 2392 transitions. Word has length 155 [2024-11-18 13:58:03,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:03,459 INFO L471 AbstractCegarLoop]: Abstraction has 1487 states and 2392 transitions. [2024-11-18 13:58:03,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:03,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 2392 transitions. [2024-11-18 13:58:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-18 13:58:03,464 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:03,464 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:03,485 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-18 13:58:03,665 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-18 13:58:03,666 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:03,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:03,666 INFO L85 PathProgramCache]: Analyzing trace with hash -657915624, now seen corresponding path program 1 times [2024-11-18 13:58:03,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797628331] [2024-11-18 13:58:03,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:03,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:03,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:03,909 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-18 13:58:03,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:03,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797628331] [2024-11-18 13:58:03,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [797628331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:03,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770981918] [2024-11-18 13:58:03,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:03,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:03,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:03,913 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:03,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-18 13:58:04,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:04,185 INFO L255 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:04,188 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:04,224 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-18 13:58:04,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:04,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770981918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:04,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:04,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-18 13:58:04,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966291812] [2024-11-18 13:58:04,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:04,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:04,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:04,227 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:04,227 INFO L87 Difference]: Start difference. First operand 1487 states and 2392 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:04,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:04,424 INFO L93 Difference]: Finished difference Result 3025 states and 4918 transitions. [2024-11-18 13:58:04,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:04,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2024-11-18 13:58:04,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:04,435 INFO L225 Difference]: With dead ends: 3025 [2024-11-18 13:58:04,436 INFO L226 Difference]: Without dead ends: 1583 [2024-11-18 13:58:04,442 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:04,442 INFO L432 NwaCegarLoop]: 766 mSDtfsCounter, 142 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:04,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2275 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:04,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-18 13:58:04,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1565. [2024-11-18 13:58:04,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1255 states have (on average 1.6223107569721116) internal successors, (2036), 1283 states have internal predecessors, (2036), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-18 13:58:04,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 2538 transitions. [2024-11-18 13:58:04,502 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 2538 transitions. Word has length 160 [2024-11-18 13:58:04,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:04,503 INFO L471 AbstractCegarLoop]: Abstraction has 1565 states and 2538 transitions. [2024-11-18 13:58:04,503 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:04,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 2538 transitions. [2024-11-18 13:58:04,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-18 13:58:04,507 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:04,507 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:04,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:04,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-18 13:58:04,708 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:04,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:04,708 INFO L85 PathProgramCache]: Analyzing trace with hash -668312440, now seen corresponding path program 1 times [2024-11-18 13:58:04,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:04,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791434969] [2024-11-18 13:58:04,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:04,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:04,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:04,958 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2024-11-18 13:58:04,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:04,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791434969] [2024-11-18 13:58:04,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791434969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:04,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [887678420] [2024-11-18 13:58:04,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:04,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:04,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:04,960 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:04,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-18 13:58:05,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:05,216 INFO L255 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:05,218 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:05,255 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-18 13:58:05,255 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:05,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [887678420] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:05,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:05,256 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-18 13:58:05,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062039247] [2024-11-18 13:58:05,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:05,257 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:05,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:05,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:05,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:05,258 INFO L87 Difference]: Start difference. First operand 1565 states and 2538 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:05,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:05,441 INFO L93 Difference]: Finished difference Result 3187 states and 5212 transitions. [2024-11-18 13:58:05,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:05,441 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2024-11-18 13:58:05,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:05,452 INFO L225 Difference]: With dead ends: 3187 [2024-11-18 13:58:05,453 INFO L226 Difference]: Without dead ends: 1667 [2024-11-18 13:58:05,459 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:05,460 INFO L432 NwaCegarLoop]: 765 mSDtfsCounter, 140 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:05,460 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2272 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:05,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1667 states. [2024-11-18 13:58:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1667 to 1643. [2024-11-18 13:58:05,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1643 states, 1331 states have (on average 1.6393688955672427) internal successors, (2182), 1359 states have internal predecessors, (2182), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-18 13:58:05,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1643 states to 1643 states and 2684 transitions. [2024-11-18 13:58:05,519 INFO L78 Accepts]: Start accepts. Automaton has 1643 states and 2684 transitions. Word has length 164 [2024-11-18 13:58:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:05,520 INFO L471 AbstractCegarLoop]: Abstraction has 1643 states and 2684 transitions. [2024-11-18 13:58:05,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 1643 states and 2684 transitions. [2024-11-18 13:58:05,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-18 13:58:05,524 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:05,524 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:05,544 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-18 13:58:05,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-18 13:58:05,725 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:05,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:05,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1114973575, now seen corresponding path program 1 times [2024-11-18 13:58:05,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:05,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631165907] [2024-11-18 13:58:05,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:05,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:06,015 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2024-11-18 13:58:06,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631165907] [2024-11-18 13:58:06,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631165907] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:06,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439989497] [2024-11-18 13:58:06,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:06,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:06,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:06,018 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:06,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-18 13:58:06,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:06,352 INFO L255 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-18 13:58:06,355 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:06,395 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-18 13:58:06,395 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:06,395 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439989497] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:06,395 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:06,395 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2024-11-18 13:58:06,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566410969] [2024-11-18 13:58:06,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:06,396 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 13:58:06,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:06,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 13:58:06,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2024-11-18 13:58:06,397 INFO L87 Difference]: Start difference. First operand 1643 states and 2684 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:06,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:06,570 INFO L93 Difference]: Finished difference Result 3349 states and 5506 transitions. [2024-11-18 13:58:06,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 13:58:06,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2024-11-18 13:58:06,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:06,581 INFO L225 Difference]: With dead ends: 3349 [2024-11-18 13:58:06,581 INFO L226 Difference]: Without dead ends: 1751 [2024-11-18 13:58:06,587 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2024-11-18 13:58:06,588 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 138 mSDsluCounter, 1500 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2262 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:06,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2262 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:06,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1751 states. [2024-11-18 13:58:06,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1751 to 1721. [2024-11-18 13:58:06,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1721 states, 1407 states have (on average 1.6545842217484008) internal successors, (2328), 1435 states have internal predecessors, (2328), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2024-11-18 13:58:06,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1721 states to 1721 states and 2830 transitions. [2024-11-18 13:58:06,646 INFO L78 Accepts]: Start accepts. Automaton has 1721 states and 2830 transitions. Word has length 167 [2024-11-18 13:58:06,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:06,646 INFO L471 AbstractCegarLoop]: Abstraction has 1721 states and 2830 transitions. [2024-11-18 13:58:06,647 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2024-11-18 13:58:06,647 INFO L276 IsEmpty]: Start isEmpty. Operand 1721 states and 2830 transitions. [2024-11-18 13:58:06,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-11-18 13:58:06,651 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:06,651 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:06,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-11-18 13:58:06,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:06,852 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:06,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:06,853 INFO L85 PathProgramCache]: Analyzing trace with hash 138911893, now seen corresponding path program 1 times [2024-11-18 13:58:06,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:06,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353573096] [2024-11-18 13:58:06,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:06,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:06,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,086 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-18 13:58:07,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353573096] [2024-11-18 13:58:07,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353573096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:07,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1685041541] [2024-11-18 13:58:07,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:07,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:07,087 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:07,089 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:07,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-18 13:58:07,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:07,391 INFO L255 TraceCheckSpWp]: Trace formula consists of 1340 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-18 13:58:07,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:07,614 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-11-18 13:58:07,614 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 13:58:07,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1685041541] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:07,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 13:58:07,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2024-11-18 13:58:07,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804948830] [2024-11-18 13:58:07,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:07,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 13:58:07,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:07,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 13:58:07,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-18 13:58:07,616 INFO L87 Difference]: Start difference. First operand 1721 states and 2830 transitions. Second operand has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 13:58:09,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:09,844 INFO L93 Difference]: Finished difference Result 5366 states and 8969 transitions. [2024-11-18 13:58:09,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 13:58:09,846 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2024-11-18 13:58:09,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:09,873 INFO L225 Difference]: With dead ends: 5366 [2024-11-18 13:58:09,874 INFO L226 Difference]: Without dead ends: 3306 [2024-11-18 13:58:09,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2024-11-18 13:58:09,889 INFO L432 NwaCegarLoop]: 354 mSDtfsCounter, 1900 mSDsluCounter, 1874 mSDsCounter, 0 mSdLazyCounter, 3844 mSolverCounterSat, 449 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1999 SdHoareTripleChecker+Valid, 2228 SdHoareTripleChecker+Invalid, 4293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 449 IncrementalHoareTripleChecker+Valid, 3844 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:09,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1999 Valid, 2228 Invalid, 4293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [449 Valid, 3844 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 13:58:09,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3306 states. [2024-11-18 13:58:10,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3306 to 3294. [2024-11-18 13:58:10,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3294 states, 2647 states have (on average 1.658103513411409) internal successors, (4389), 2729 states have internal predecessors, (4389), 463 states have call successors, (463), 163 states have call predecessors, (463), 183 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2024-11-18 13:58:10,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3294 states to 3294 states and 5459 transitions. [2024-11-18 13:58:10,099 INFO L78 Accepts]: Start accepts. Automaton has 3294 states and 5459 transitions. Word has length 169 [2024-11-18 13:58:10,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:10,100 INFO L471 AbstractCegarLoop]: Abstraction has 3294 states and 5459 transitions. [2024-11-18 13:58:10,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.0) internal successors, (108), 7 states have internal predecessors, (108), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2024-11-18 13:58:10,100 INFO L276 IsEmpty]: Start isEmpty. Operand 3294 states and 5459 transitions. [2024-11-18 13:58:10,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2024-11-18 13:58:10,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:10,109 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:10,129 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-18 13:58:10,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-18 13:58:10,310 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:10,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:10,311 INFO L85 PathProgramCache]: Analyzing trace with hash 1390639276, now seen corresponding path program 1 times [2024-11-18 13:58:10,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:10,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605553238] [2024-11-18 13:58:10,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:10,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:10,458 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-18 13:58:10,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:10,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605553238] [2024-11-18 13:58:10,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605553238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 13:58:10,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 13:58:10,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 13:58:10,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549909416] [2024-11-18 13:58:10,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 13:58:10,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 13:58:10,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:10,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 13:58:10,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 13:58:10,460 INFO L87 Difference]: Start difference. First operand 3294 states and 5459 transitions. Second operand has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 13:58:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 13:58:10,659 INFO L93 Difference]: Finished difference Result 6414 states and 10658 transitions. [2024-11-18 13:58:10,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 13:58:10,659 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2024-11-18 13:58:10,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 13:58:10,681 INFO L225 Difference]: With dead ends: 6414 [2024-11-18 13:58:10,681 INFO L226 Difference]: Without dead ends: 3027 [2024-11-18 13:58:10,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-11-18 13:58:10,695 INFO L432 NwaCegarLoop]: 804 mSDtfsCounter, 30 mSDsluCounter, 4794 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5598 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 13:58:10,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5598 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 13:58:10,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3027 states. [2024-11-18 13:58:10,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3027 to 3015. [2024-11-18 13:58:10,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3015 states, 2468 states have (on average 1.679092382495948) internal successors, (4144), 2537 states have internal predecessors, (4144), 383 states have call successors, (383), 151 states have call predecessors, (383), 163 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2024-11-18 13:58:10,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3015 states to 3015 states and 5004 transitions. [2024-11-18 13:58:10,806 INFO L78 Accepts]: Start accepts. Automaton has 3015 states and 5004 transitions. Word has length 172 [2024-11-18 13:58:10,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 13:58:10,807 INFO L471 AbstractCegarLoop]: Abstraction has 3015 states and 5004 transitions. [2024-11-18 13:58:10,807 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2024-11-18 13:58:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 3015 states and 5004 transitions. [2024-11-18 13:58:10,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2024-11-18 13:58:10,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 13:58:10,821 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 13:58:10,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-18 13:58:10,821 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 13:58:10,822 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 13:58:10,822 INFO L85 PathProgramCache]: Analyzing trace with hash 1113846172, now seen corresponding path program 1 times [2024-11-18 13:58:10,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 13:58:10,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147368936] [2024-11-18 13:58:10,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:10,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 13:58:10,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:11,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 36 proven. 101 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2024-11-18 13:58:11,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 13:58:11,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147368936] [2024-11-18 13:58:11,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147368936] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 13:58:11,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15520450] [2024-11-18 13:58:11,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 13:58:11,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 13:58:11,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 13:58:11,346 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 13:58:11,348 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-18 13:58:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 13:58:11,842 INFO L255 TraceCheckSpWp]: Trace formula consists of 3185 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-18 13:58:11,851 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 13:58:12,115 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 343 proven. 50 refuted. 0 times theorem prover too weak. 668 trivial. 0 not checked. [2024-11-18 13:58:12,115 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-18 13:58:13,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1061 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 911 trivial. 0 not checked. [2024-11-18 13:58:13,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15520450] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-18 13:58:13,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-18 13:58:13,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2024-11-18 13:58:13,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050805640] [2024-11-18 13:58:13,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-18 13:58:13,139 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-18 13:58:13,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 13:58:13,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-18 13:58:13,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2024-11-18 13:58:13,141 INFO L87 Difference]: Start difference. First operand 3015 states and 5004 transitions. Second operand has 27 states, 25 states have (on average 14.56) internal successors, (364), 23 states have internal predecessors, (364), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90)