./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_product28.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 da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:22:40,273 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:22:40,328 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:22:40,331 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:22:40,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:22:40,355 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:22:40,357 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:22:40,357 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:22:40,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:22:40,357 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:22:40,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:22:40,358 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:22:40,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:22:40,359 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:22:40,359 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:22:40,359 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:40,360 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:22:40,360 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> da76b57a1451220816a27c40b8cda655a945b2081fe69d46a431c484896fab87 [2025-03-08 05:22:40,588 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:22:40,598 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:22:40,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:22:40,601 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:22:40,602 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:22:40,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2025-03-08 05:22:41,812 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20995cf78/16196b080b024b3f90ddbead4a3b31d8/FLAG1b5ce3ba2 [2025-03-08 05:22:42,098 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:22:42,098 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2025-03-08 05:22:42,115 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20995cf78/16196b080b024b3f90ddbead4a3b31d8/FLAG1b5ce3ba2 [2025-03-08 05:22:42,383 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20995cf78/16196b080b024b3f90ddbead4a3b31d8 [2025-03-08 05:22:42,385 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:22:42,387 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:22:42,387 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:42,387 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:22:42,390 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:22:42,391 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,392 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb27fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42, skipping insertion in model container [2025-03-08 05:22:42,392 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,437 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:22:42,689 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_product28.cil.c[43703,43716] [2025-03-08 05:22:42,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:42,759 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:22:42,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2025-03-08 05:22:42,766 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2025-03-08 05:22:42,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2025-03-08 05:22:42,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2025-03-08 05:22:42,832 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_product28.cil.c[43703,43716] [2025-03-08 05:22:42,861 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:42,882 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:22:42,882 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42 WrapperNode [2025-03-08 05:22:42,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:42,883 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:42,883 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:22:42,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:22:42,888 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,903 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,939 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1100 [2025-03-08 05:22:42,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:42,939 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:22:42,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:22:42,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:22:42,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,971 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]. [2025-03-08 05:22:42,972 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,972 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,986 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,988 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,991 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,992 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:42,996 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:22:42,996 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:22:42,996 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:22:42,996 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:22:42,997 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (1/1) ... [2025-03-08 05:22:43,000 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:43,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:43,020 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) [2025-03-08 05:22:43,023 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 [2025-03-08 05:22:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:22:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-08 05:22:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-08 05:22:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-08 05:22:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-08 05:22:43,038 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-08 05:22:43,038 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-08 05:22:43,039 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-08 05:22:43,039 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-08 05:22:43,040 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 05:22:43,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-08 05:22:43,041 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-03-08 05:22:43,041 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-03-08 05:22:43,189 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:22:43,191 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:22:43,251 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L249: #res := ~retValue_acc~4; [2025-03-08 05:22:43,266 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L171: #res := ~retValue_acc~2; [2025-03-08 05:22:43,268 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L336: #res := ~retValue_acc~5; [2025-03-08 05:22:43,282 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L509: #res := ~retValue_acc~6; [2025-03-08 05:22:43,350 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1165: #res#1 := ~retValue_acc~16#1; [2025-03-08 05:22:43,350 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L552-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~8#1; [2025-03-08 05:22:43,356 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1840: #res := ~retValue_acc~20; [2025-03-08 05:22:43,638 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1046-1: stopRequestedInDirection__wrappee__empty_#res#1 := stopRequestedInDirection__wrappee__empty_~retValue_acc~13#1; [2025-03-08 05:22:43,638 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1075: #res#1 := ~retValue_acc~14#1; [2025-03-08 05:22:43,710 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1210: #res := ~retValue_acc~18; [2025-03-08 05:22:43,721 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L210: #res := ~retValue_acc~3; [2025-03-08 05:22:43,772 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L601-1: isEmpty_#res#1 := isEmpty_~retValue_acc~10#1; [2025-03-08 05:22:43,831 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L681-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~11#1; [2025-03-08 05:22:43,831 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L694-1: isIdle_#res#1 := isIdle_~retValue_acc~12#1; [2025-03-08 05:22:43,848 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1849-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~21#1; [2025-03-08 05:22:43,896 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2667: #res := ~retValue_acc~25; [2025-03-08 05:22:43,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L83-1: valid_product_#res#1 := valid_product_~retValue_acc~1#1; [2025-03-08 05:22:43,948 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2217-1: main_#res#1 := main_~retValue_acc~23#1; [2025-03-08 05:22:43,957 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2431: #res := ~retValue_acc~24; [2025-03-08 05:22:43,958 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L518: #res := ~retValue_acc~7; [2025-03-08 05:22:43,961 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2978: #res := ~retValue_acc~26; [2025-03-08 05:22:44,035 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1196-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~17#1; [2025-03-08 05:22:44,147 INFO L? ?]: Removed 453 outVars from TransFormulas that were not future-live. [2025-03-08 05:22:44,147 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:22:44,164 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:22:44,165 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:22:44,165 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:44 BoogieIcfgContainer [2025-03-08 05:22:44,165 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:22:44,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:22:44,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:22:44,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:22:44,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:22:42" (1/3) ... [2025-03-08 05:22:44,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd016b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:44, skipping insertion in model container [2025-03-08 05:22:44,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:42" (2/3) ... [2025-03-08 05:22:44,174 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd016b2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:44, skipping insertion in model container [2025-03-08 05:22:44,174 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:44" (3/3) ... [2025-03-08 05:22:44,175 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2025-03-08 05:22:44,186 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:22:44,188 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product28.cil.c that has 26 procedures, 552 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:22:44,247 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:22:44,257 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;@4d5eda9b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:22:44,258 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:22:44,262 INFO L276 IsEmpty]: Start isEmpty. Operand has 552 states, 428 states have (on average 1.6728971962616823) internal successors, (716), 446 states have internal predecessors, (716), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2025-03-08 05:22:44,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-08 05:22:44,272 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:44,273 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:44,274 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:44,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:44,278 INFO L85 PathProgramCache]: Analyzing trace with hash -318906195, now seen corresponding path program 1 times [2025-03-08 05:22:44,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:44,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732212420] [2025-03-08 05:22:44,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:44,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:44,359 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 05:22:44,424 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 05:22:44,428 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:44,428 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:44,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:44,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:44,711 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732212420] [2025-03-08 05:22:44,711 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732212420] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:44,711 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:44,712 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:44,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836790246] [2025-03-08 05:22:44,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:44,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:44,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:44,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:44,728 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:44,730 INFO L87 Difference]: Start difference. First operand has 552 states, 428 states have (on average 1.6728971962616823) internal successors, (716), 446 states have internal predecessors, (716), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:44,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:44,860 INFO L93 Difference]: Finished difference Result 1097 states and 1820 transitions. [2025-03-08 05:22:44,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:44,862 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2025-03-08 05:22:44,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:44,874 INFO L225 Difference]: With dead ends: 1097 [2025-03-08 05:22:44,875 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:44,882 INFO L434 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 [2025-03-08 05:22:44,885 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 6 mSDsluCounter, 1782 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2676 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 [2025-03-08 05:22:44,886 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2676 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:44,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:44,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:44,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.6650943396226414) internal successors, (706), 441 states have internal predecessors, (706), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:44,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 899 transitions. [2025-03-08 05:22:44,963 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 899 transitions. Word has length 63 [2025-03-08 05:22:44,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:44,965 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 899 transitions. [2025-03-08 05:22:44,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:44,965 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 899 transitions. [2025-03-08 05:22:44,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-08 05:22:44,969 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:44,969 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:44,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:22:44,970 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:44,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:44,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1911204166, now seen corresponding path program 1 times [2025-03-08 05:22:44,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:44,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921534794] [2025-03-08 05:22:44,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:44,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:44,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 05:22:45,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 05:22:45,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:45,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:45,148 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:45,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:45,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921534794] [2025-03-08 05:22:45,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921534794] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:45,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:45,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:45,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922751330] [2025-03-08 05:22:45,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:45,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:45,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:45,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:45,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:45,150 INFO L87 Difference]: Start difference. First operand 547 states and 899 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:45,214 INFO L93 Difference]: Finished difference Result 1077 states and 1775 transitions. [2025-03-08 05:22:45,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:45,215 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2025-03-08 05:22:45,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:45,218 INFO L225 Difference]: With dead ends: 1077 [2025-03-08 05:22:45,218 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:45,224 INFO L434 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 [2025-03-08 05:22:45,224 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 4 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2648 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 [2025-03-08 05:22:45,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2648 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:45,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:45,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:45,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.6627358490566038) internal successors, (705), 441 states have internal predecessors, (705), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:45,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 898 transitions. [2025-03-08 05:22:45,252 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 898 transitions. Word has length 64 [2025-03-08 05:22:45,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:45,253 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 898 transitions. [2025-03-08 05:22:45,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,253 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 898 transitions. [2025-03-08 05:22:45,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-08 05:22:45,256 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:45,257 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:45,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:22:45,257 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:45,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:45,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1644549334, now seen corresponding path program 1 times [2025-03-08 05:22:45,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:45,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627418845] [2025-03-08 05:22:45,258 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:45,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:45,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-08 05:22:45,283 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-08 05:22:45,285 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:45,285 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:45,398 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:45,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:45,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627418845] [2025-03-08 05:22:45,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627418845] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:45,399 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:45,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:45,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437996123] [2025-03-08 05:22:45,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:45,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:45,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:45,400 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:45,400 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:45,400 INFO L87 Difference]: Start difference. First operand 547 states and 898 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:45,467 INFO L93 Difference]: Finished difference Result 1077 states and 1774 transitions. [2025-03-08 05:22:45,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:45,468 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2025-03-08 05:22:45,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:45,476 INFO L225 Difference]: With dead ends: 1077 [2025-03-08 05:22:45,478 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:45,481 INFO L434 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 [2025-03-08 05:22:45,481 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 3 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2648 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 [2025-03-08 05:22:45,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2648 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:45,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:45,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.6603773584905661) internal successors, (704), 441 states have internal predecessors, (704), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:45,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 897 transitions. [2025-03-08 05:22:45,523 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 897 transitions. Word has length 65 [2025-03-08 05:22:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:45,525 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 897 transitions. [2025-03-08 05:22:45,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,526 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 897 transitions. [2025-03-08 05:22:45,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 05:22:45,528 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:45,528 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:45,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:22:45,529 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:45,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:45,529 INFO L85 PathProgramCache]: Analyzing trace with hash 121511203, now seen corresponding path program 1 times [2025-03-08 05:22:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:45,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082170634] [2025-03-08 05:22:45,530 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:45,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:45,549 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 05:22:45,559 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 05:22:45,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:45,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:45,662 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:45,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:45,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082170634] [2025-03-08 05:22:45,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082170634] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:45,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:45,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:45,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997277914] [2025-03-08 05:22:45,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:45,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:45,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:45,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:45,665 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:45,665 INFO L87 Difference]: Start difference. First operand 547 states and 897 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:45,718 INFO L93 Difference]: Finished difference Result 1077 states and 1773 transitions. [2025-03-08 05:22:45,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:45,718 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2025-03-08 05:22:45,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:45,722 INFO L225 Difference]: With dead ends: 1077 [2025-03-08 05:22:45,723 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:45,726 INFO L434 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 [2025-03-08 05:22:45,728 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 2 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2648 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 [2025-03-08 05:22:45,729 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2648 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:45,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:45,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.6580188679245282) internal successors, (703), 441 states have internal predecessors, (703), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:45,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 896 transitions. [2025-03-08 05:22:45,767 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 896 transitions. Word has length 66 [2025-03-08 05:22:45,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:45,768 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 896 transitions. [2025-03-08 05:22:45,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,768 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 896 transitions. [2025-03-08 05:22:45,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-08 05:22:45,769 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:45,769 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:45,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:22:45,769 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:45,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:45,769 INFO L85 PathProgramCache]: Analyzing trace with hash -639917657, now seen corresponding path program 1 times [2025-03-08 05:22:45,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:45,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95674163] [2025-03-08 05:22:45,770 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:45,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:45,781 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 05:22:45,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 05:22:45,791 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:45,791 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:45,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:45,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:45,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95674163] [2025-03-08 05:22:45,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95674163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:45,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:45,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:45,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149469621] [2025-03-08 05:22:45,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:45,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:45,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:45,863 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:45,863 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:45,863 INFO L87 Difference]: Start difference. First operand 547 states and 896 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:45,908 INFO L93 Difference]: Finished difference Result 1077 states and 1772 transitions. [2025-03-08 05:22:45,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:45,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2025-03-08 05:22:45,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:45,913 INFO L225 Difference]: With dead ends: 1077 [2025-03-08 05:22:45,913 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:45,916 INFO L434 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 [2025-03-08 05:22:45,917 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 1 mSDsluCounter, 1763 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2648 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 [2025-03-08 05:22:45,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2648 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:45,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:45,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:45,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 424 states have (on average 1.6556603773584906) internal successors, (702), 441 states have internal predecessors, (702), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:45,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 895 transitions. [2025-03-08 05:22:45,947 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 895 transitions. Word has length 67 [2025-03-08 05:22:45,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:45,948 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 895 transitions. [2025-03-08 05:22:45,949 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:45,949 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 895 transitions. [2025-03-08 05:22:45,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 05:22:45,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:45,950 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:45,950 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:22:45,950 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:45,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:45,951 INFO L85 PathProgramCache]: Analyzing trace with hash 1850860800, now seen corresponding path program 1 times [2025-03-08 05:22:45,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:45,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076541443] [2025-03-08 05:22:45,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:45,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:45,967 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 05:22:45,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 05:22:45,975 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:45,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:46,117 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:46,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:46,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076541443] [2025-03-08 05:22:46,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076541443] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:46,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:46,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:22:46,118 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208679690] [2025-03-08 05:22:46,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:46,118 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:46,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:46,118 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:46,119 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:46,119 INFO L87 Difference]: Start difference. First operand 547 states and 895 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:46,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:46,200 INFO L93 Difference]: Finished difference Result 1088 states and 1789 transitions. [2025-03-08 05:22:46,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:46,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2025-03-08 05:22:46,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:46,205 INFO L225 Difference]: With dead ends: 1088 [2025-03-08 05:22:46,205 INFO L226 Difference]: Without dead ends: 562 [2025-03-08 05:22:46,207 INFO L434 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 [2025-03-08 05:22:46,207 INFO L435 NwaCegarLoop]: 882 mSDtfsCounter, 91 mSDsluCounter, 4325 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5207 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:46,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5207 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:46,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2025-03-08 05:22:46,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 560. [2025-03-08 05:22:46,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 560 states, 434 states have (on average 1.652073732718894) internal successors, (717), 453 states have internal predecessors, (717), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2025-03-08 05:22:46,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 915 transitions. [2025-03-08 05:22:46,234 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 915 transitions. Word has length 68 [2025-03-08 05:22:46,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:46,235 INFO L471 AbstractCegarLoop]: Abstraction has 560 states and 915 transitions. [2025-03-08 05:22:46,235 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:46,235 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 915 transitions. [2025-03-08 05:22:46,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 05:22:46,236 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:46,236 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:46,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:22:46,239 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:46,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:46,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1674936481, now seen corresponding path program 1 times [2025-03-08 05:22:46,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:46,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703211860] [2025-03-08 05:22:46,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:46,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 05:22:46,255 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 05:22:46,256 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:46,256 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:46,298 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:46,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:46,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703211860] [2025-03-08 05:22:46,298 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703211860] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:46,298 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:46,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:46,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411452561] [2025-03-08 05:22:46,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:46,299 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:46,299 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:46,299 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:46,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:46,300 INFO L87 Difference]: Start difference. First operand 560 states and 915 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:46,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:46,340 INFO L93 Difference]: Finished difference Result 1095 states and 1800 transitions. [2025-03-08 05:22:46,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:46,341 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2025-03-08 05:22:46,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:46,344 INFO L225 Difference]: With dead ends: 1095 [2025-03-08 05:22:46,345 INFO L226 Difference]: Without dead ends: 556 [2025-03-08 05:22:46,346 INFO L434 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 [2025-03-08 05:22:46,347 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 1 mSDsluCounter, 1760 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2643 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 [2025-03-08 05:22:46,347 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2643 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:46,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2025-03-08 05:22:46,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2025-03-08 05:22:46,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 432 states have (on average 1.6527777777777777) internal successors, (714), 450 states have internal predecessors, (714), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2025-03-08 05:22:46,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 908 transitions. [2025-03-08 05:22:46,364 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 908 transitions. Word has length 68 [2025-03-08 05:22:46,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:46,364 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 908 transitions. [2025-03-08 05:22:46,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:46,364 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 908 transitions. [2025-03-08 05:22:46,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-08 05:22:46,366 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:46,367 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:46,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:22:46,367 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:46,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:46,367 INFO L85 PathProgramCache]: Analyzing trace with hash 757207134, now seen corresponding path program 1 times [2025-03-08 05:22:46,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:46,367 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977327915] [2025-03-08 05:22:46,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:46,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:46,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 05:22:46,385 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 05:22:46,385 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:46,385 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:46,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:46,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:46,478 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977327915] [2025-03-08 05:22:46,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977327915] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:46,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:46,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:46,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700757820] [2025-03-08 05:22:46,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:46,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:46,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:46,479 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:46,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:46,479 INFO L87 Difference]: Start difference. First operand 556 states and 908 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:46,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:46,680 INFO L93 Difference]: Finished difference Result 1138 states and 1872 transitions. [2025-03-08 05:22:46,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:46,681 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2025-03-08 05:22:46,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:46,685 INFO L225 Difference]: With dead ends: 1138 [2025-03-08 05:22:46,685 INFO L226 Difference]: Without dead ends: 588 [2025-03-08 05:22:46,687 INFO L434 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 [2025-03-08 05:22:46,688 INFO L435 NwaCegarLoop]: 857 mSDtfsCounter, 72 mSDsluCounter, 3349 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4206 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 [2025-03-08 05:22:46,688 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4206 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 05:22:46,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2025-03-08 05:22:46,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 561. [2025-03-08 05:22:46,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6384439359267735) internal successors, (716), 454 states have internal predecessors, (716), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:46,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 909 transitions. [2025-03-08 05:22:46,705 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 909 transitions. Word has length 69 [2025-03-08 05:22:46,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:46,706 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 909 transitions. [2025-03-08 05:22:46,706 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:46,706 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 909 transitions. [2025-03-08 05:22:46,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 05:22:46,709 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:46,709 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:46,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:22:46,709 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:46,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:46,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1798406185, now seen corresponding path program 1 times [2025-03-08 05:22:46,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:46,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665844505] [2025-03-08 05:22:46,709 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:46,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:46,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 05:22:46,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 05:22:46,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:46,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:46,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:46,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:46,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665844505] [2025-03-08 05:22:46,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665844505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:46,808 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:46,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:46,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918300694] [2025-03-08 05:22:46,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:46,808 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:46,808 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:46,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:46,809 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:46,810 INFO L87 Difference]: Start difference. First operand 561 states and 909 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:46,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:46,983 INFO L93 Difference]: Finished difference Result 1089 states and 1767 transitions. [2025-03-08 05:22:46,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:46,984 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2025-03-08 05:22:46,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:46,988 INFO L225 Difference]: With dead ends: 1089 [2025-03-08 05:22:46,988 INFO L226 Difference]: Without dead ends: 579 [2025-03-08 05:22:46,989 INFO L434 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 [2025-03-08 05:22:46,990 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 56 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4183 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:46,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4183 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2025-03-08 05:22:47,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 561. [2025-03-08 05:22:47,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.6292906178489703) internal successors, (712), 454 states have internal predecessors, (712), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 905 transitions. [2025-03-08 05:22:47,010 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 905 transitions. Word has length 70 [2025-03-08 05:22:47,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,011 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 905 transitions. [2025-03-08 05:22:47,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,011 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 905 transitions. [2025-03-08 05:22:47,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 05:22:47,011 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,011 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:22:47,012 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,012 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1247913665, now seen corresponding path program 1 times [2025-03-08 05:22:47,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,012 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539033141] [2025-03-08 05:22:47,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,022 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 05:22:47,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 05:22:47,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:47,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539033141] [2025-03-08 05:22:47,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539033141] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [593917281] [2025-03-08 05:22:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,099 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:47,099 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:47,099 INFO L87 Difference]: Start difference. First operand 561 states and 905 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:47,234 INFO L93 Difference]: Finished difference Result 1089 states and 1763 transitions. [2025-03-08 05:22:47,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:47,234 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2025-03-08 05:22:47,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:47,237 INFO L225 Difference]: With dead ends: 1089 [2025-03-08 05:22:47,237 INFO L226 Difference]: Without dead ends: 579 [2025-03-08 05:22:47,239 INFO L434 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 [2025-03-08 05:22:47,240 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 55 mSDsluCounter, 3333 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4178 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:47,240 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4178 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:47,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2025-03-08 05:22:47,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 561. [2025-03-08 05:22:47,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 437 states have (on average 1.620137299771167) internal successors, (708), 454 states have internal predecessors, (708), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 901 transitions. [2025-03-08 05:22:47,254 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 901 transitions. Word has length 71 [2025-03-08 05:22:47,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,254 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 901 transitions. [2025-03-08 05:22:47,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,254 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 901 transitions. [2025-03-08 05:22:47,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 05:22:47,255 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,255 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 05:22:47,256 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,256 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,256 INFO L85 PathProgramCache]: Analyzing trace with hash -505416848, now seen corresponding path program 1 times [2025-03-08 05:22:47,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779265857] [2025-03-08 05:22:47,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,266 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 05:22:47,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 05:22:47,274 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,274 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:47,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779265857] [2025-03-08 05:22:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [779265857] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:22:47,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366823788] [2025-03-08 05:22:47,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:47,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,372 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:47,372 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:47,372 INFO L87 Difference]: Start difference. First operand 561 states and 901 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:47,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:47,442 INFO L93 Difference]: Finished difference Result 1080 states and 1745 transitions. [2025-03-08 05:22:47,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:47,443 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2025-03-08 05:22:47,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:47,447 INFO L225 Difference]: With dead ends: 1080 [2025-03-08 05:22:47,447 INFO L226 Difference]: Without dead ends: 549 [2025-03-08 05:22:47,449 INFO L434 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 [2025-03-08 05:22:47,450 INFO L435 NwaCegarLoop]: 871 mSDtfsCounter, 94 mSDsluCounter, 4259 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5130 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 [2025-03-08 05:22:47,450 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5130 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:47,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-03-08 05:22:47,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 540. [2025-03-08 05:22:47,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 416 states have (on average 1.6129807692307692) internal successors, (671), 433 states have internal predecessors, (671), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 864 transitions. [2025-03-08 05:22:47,468 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 864 transitions. Word has length 71 [2025-03-08 05:22:47,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,468 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 864 transitions. [2025-03-08 05:22:47,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:47,469 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 864 transitions. [2025-03-08 05:22:47,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 05:22:47,470 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,470 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 05:22:47,470 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1860502618, now seen corresponding path program 1 times [2025-03-08 05:22:47,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853131542] [2025-03-08 05:22:47,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,484 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 05:22:47,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 05:22:47,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:47,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853131542] [2025-03-08 05:22:47,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853131542] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:47,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29281262] [2025-03-08 05:22:47,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:47,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:47,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:47,565 INFO L87 Difference]: Start difference. First operand 540 states and 864 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:47,644 INFO L93 Difference]: Finished difference Result 1059 states and 1708 transitions. [2025-03-08 05:22:47,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:47,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2025-03-08 05:22:47,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:47,648 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:47,648 INFO L226 Difference]: Without dead ends: 549 [2025-03-08 05:22:47,651 INFO L434 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 [2025-03-08 05:22:47,651 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 39 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4183 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 [2025-03-08 05:22:47,651 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4183 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-03-08 05:22:47,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 540. [2025-03-08 05:22:47,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 416 states have (on average 1.6105769230769231) internal successors, (670), 433 states have internal predecessors, (670), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 863 transitions. [2025-03-08 05:22:47,667 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 863 transitions. Word has length 72 [2025-03-08 05:22:47,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,667 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 863 transitions. [2025-03-08 05:22:47,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,667 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 863 transitions. [2025-03-08 05:22:47,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-08 05:22:47,668 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,668 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 05:22:47,668 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,669 INFO L85 PathProgramCache]: Analyzing trace with hash 41877796, now seen corresponding path program 1 times [2025-03-08 05:22:47,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073170477] [2025-03-08 05:22:47,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,679 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-08 05:22:47,685 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-08 05:22:47,685 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,685 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:47,776 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073170477] [2025-03-08 05:22:47,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073170477] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,776 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:47,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193698157] [2025-03-08 05:22:47,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,777 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:47,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,777 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:47,777 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:47,777 INFO L87 Difference]: Start difference. First operand 540 states and 863 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:47,853 INFO L93 Difference]: Finished difference Result 1059 states and 1707 transitions. [2025-03-08 05:22:47,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:47,853 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2025-03-08 05:22:47,853 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:47,857 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:47,857 INFO L226 Difference]: Without dead ends: 549 [2025-03-08 05:22:47,859 INFO L434 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 [2025-03-08 05:22:47,860 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 38 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4183 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 [2025-03-08 05:22:47,860 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4183 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:47,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 549 states. [2025-03-08 05:22:47,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 549 to 540. [2025-03-08 05:22:47,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 540 states, 416 states have (on average 1.6081730769230769) internal successors, (669), 433 states have internal predecessors, (669), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 540 states to 540 states and 862 transitions. [2025-03-08 05:22:47,874 INFO L78 Accepts]: Start accepts. Automaton has 540 states and 862 transitions. Word has length 73 [2025-03-08 05:22:47,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,875 INFO L471 AbstractCegarLoop]: Abstraction has 540 states and 862 transitions. [2025-03-08 05:22:47,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,875 INFO L276 IsEmpty]: Start isEmpty. Operand 540 states and 862 transitions. [2025-03-08 05:22:47,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 05:22:47,876 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,877 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 05:22:47,877 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,877 INFO L85 PathProgramCache]: Analyzing trace with hash 165037277, now seen corresponding path program 1 times [2025-03-08 05:22:47,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742051842] [2025-03-08 05:22:47,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,887 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 05:22:47,892 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 05:22:47,892 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,892 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,934 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:47,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,935 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742051842] [2025-03-08 05:22:47,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742051842] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:47,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [259018665] [2025-03-08 05:22:47,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,935 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:47,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,936 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:47,936 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:47,936 INFO L87 Difference]: Start difference. First operand 540 states and 862 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:47,975 INFO L93 Difference]: Finished difference Result 1046 states and 1686 transitions. [2025-03-08 05:22:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2025-03-08 05:22:47,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:47,980 INFO L225 Difference]: With dead ends: 1046 [2025-03-08 05:22:47,980 INFO L226 Difference]: Without dead ends: 542 [2025-03-08 05:22:47,982 INFO L434 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 [2025-03-08 05:22:47,982 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 16 mSDsluCounter, 1634 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2459 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:47,982 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2459 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:47,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2025-03-08 05:22:47,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 542. [2025-03-08 05:22:47,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 542 states, 418 states have (on average 1.6028708133971292) internal successors, (670), 435 states have internal predecessors, (670), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:47,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 863 transitions. [2025-03-08 05:22:47,998 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 863 transitions. Word has length 74 [2025-03-08 05:22:47,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,999 INFO L471 AbstractCegarLoop]: Abstraction has 542 states and 863 transitions. [2025-03-08 05:22:47,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 863 transitions. [2025-03-08 05:22:48,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-08 05:22:48,000 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:48,000 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:48,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 05:22:48,000 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:48,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:48,002 INFO L85 PathProgramCache]: Analyzing trace with hash 67643319, now seen corresponding path program 1 times [2025-03-08 05:22:48,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:48,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930854213] [2025-03-08 05:22:48,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:48,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:48,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 05:22:48,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 05:22:48,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:48,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:48,142 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:48,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:48,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930854213] [2025-03-08 05:22:48,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930854213] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:48,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:48,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 05:22:48,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163881910] [2025-03-08 05:22:48,143 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:48,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:48,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:48,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:48,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 05:22:48,144 INFO L87 Difference]: Start difference. First operand 542 states and 863 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:48,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:48,238 INFO L93 Difference]: Finished difference Result 1527 states and 2483 transitions. [2025-03-08 05:22:48,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:48,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2025-03-08 05:22:48,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:48,246 INFO L225 Difference]: With dead ends: 1527 [2025-03-08 05:22:48,246 INFO L226 Difference]: Without dead ends: 1028 [2025-03-08 05:22:48,249 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 05:22:48,249 INFO L435 NwaCegarLoop]: 930 mSDtfsCounter, 796 mSDsluCounter, 796 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1726 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:48,251 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1726 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:48,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2025-03-08 05:22:48,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 965. [2025-03-08 05:22:48,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 965 states, 749 states have (on average 1.623497997329773) internal successors, (1216), 775 states have internal predecessors, (1216), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2025-03-08 05:22:48,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1561 transitions. [2025-03-08 05:22:48,290 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1561 transitions. Word has length 75 [2025-03-08 05:22:48,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:48,290 INFO L471 AbstractCegarLoop]: Abstraction has 965 states and 1561 transitions. [2025-03-08 05:22:48,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:48,290 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1561 transitions. [2025-03-08 05:22:48,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-08 05:22:48,293 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:48,294 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:48,294 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 05:22:48,294 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:48,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:48,294 INFO L85 PathProgramCache]: Analyzing trace with hash -885262614, now seen corresponding path program 1 times [2025-03-08 05:22:48,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:48,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31186194] [2025-03-08 05:22:48,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:48,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:48,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:48,319 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:48,319 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:48,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:48,426 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:48,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:48,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31186194] [2025-03-08 05:22:48,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31186194] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:48,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506125327] [2025-03-08 05:22:48,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:48,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:48,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:48,429 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) [2025-03-08 05:22:48,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:22:48,542 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:48,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:48,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:48,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:48,673 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:48,679 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 05:22:48,700 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:48,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506125327] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:48,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:48,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:22:48,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836154060] [2025-03-08 05:22:48,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:48,701 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:48,701 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:48,702 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:48,702 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:48,702 INFO L87 Difference]: Start difference. First operand 965 states and 1561 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:48,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:48,780 INFO L93 Difference]: Finished difference Result 2797 states and 4631 transitions. [2025-03-08 05:22:48,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:48,781 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2025-03-08 05:22:48,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:48,792 INFO L225 Difference]: With dead ends: 2797 [2025-03-08 05:22:48,792 INFO L226 Difference]: Without dead ends: 1876 [2025-03-08 05:22:48,796 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:48,797 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 844 mSDsluCounter, 798 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 1656 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 [2025-03-08 05:22:48,797 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [844 Valid, 1656 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:48,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1876 states. [2025-03-08 05:22:48,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1876 to 1864. [2025-03-08 05:22:48,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1864 states, 1449 states have (on average 1.6349206349206349) internal successors, (2369), 1498 states have internal predecessors, (2369), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2025-03-08 05:22:48,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1864 states to 1864 states and 3062 transitions. [2025-03-08 05:22:48,894 INFO L78 Accepts]: Start accepts. Automaton has 1864 states and 3062 transitions. Word has length 128 [2025-03-08 05:22:48,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:48,894 INFO L471 AbstractCegarLoop]: Abstraction has 1864 states and 3062 transitions. [2025-03-08 05:22:48,895 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, (16), 2 states have call predecessors, (16), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:48,895 INFO L276 IsEmpty]: Start isEmpty. Operand 1864 states and 3062 transitions. [2025-03-08 05:22:48,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-08 05:22:48,897 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:48,898 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:48,907 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:49,102 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,SelfDestructingSolverStorable15 [2025-03-08 05:22:49,102 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:49,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:49,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1124841227, now seen corresponding path program 1 times [2025-03-08 05:22:49,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:49,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441858427] [2025-03-08 05:22:49,103 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:49,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:49,117 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:49,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:49,125 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:49,125 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:49,226 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:49,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:49,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441858427] [2025-03-08 05:22:49,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441858427] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:49,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2006194957] [2025-03-08 05:22:49,227 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:49,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:49,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:49,229 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) [2025-03-08 05:22:49,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:22:49,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:49,488 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:49,488 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:49,488 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:49,492 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:49,497 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:49,617 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:22:49,618 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:49,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2006194957] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:49,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:49,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:49,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152245693] [2025-03-08 05:22:49,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:49,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:49,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:49,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:49,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:49,620 INFO L87 Difference]: Start difference. First operand 1864 states and 3062 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:50,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:50,267 INFO L93 Difference]: Finished difference Result 3717 states and 6257 transitions. [2025-03-08 05:22:50,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:50,268 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2025-03-08 05:22:50,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:50,278 INFO L225 Difference]: With dead ends: 3717 [2025-03-08 05:22:50,278 INFO L226 Difference]: Without dead ends: 1896 [2025-03-08 05:22:50,286 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:50,287 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 799 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 803 SdHoareTripleChecker+Valid, 2092 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:50,287 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [803 Valid, 2092 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2025-03-08 05:22:50,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2025-03-08 05:22:50,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1896. [2025-03-08 05:22:50,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1896 states, 1477 states have (on average 1.6364251861882193) internal successors, (2417), 1526 states have internal predecessors, (2417), 327 states have call successors, (327), 93 states have call predecessors, (327), 91 states have return successors, (370), 306 states have call predecessors, (370), 323 states have call successors, (370) [2025-03-08 05:22:50,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1896 states to 1896 states and 3114 transitions. [2025-03-08 05:22:50,360 INFO L78 Accepts]: Start accepts. Automaton has 1896 states and 3114 transitions. Word has length 128 [2025-03-08 05:22:50,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:50,361 INFO L471 AbstractCegarLoop]: Abstraction has 1896 states and 3114 transitions. [2025-03-08 05:22:50,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:50,361 INFO L276 IsEmpty]: Start isEmpty. Operand 1896 states and 3114 transitions. [2025-03-08 05:22:50,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-08 05:22:50,364 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:50,364 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:50,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:50,564 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,SelfDestructingSolverStorable16 [2025-03-08 05:22:50,564 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:50,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:50,565 INFO L85 PathProgramCache]: Analyzing trace with hash -466168523, now seen corresponding path program 1 times [2025-03-08 05:22:50,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:50,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361727960] [2025-03-08 05:22:50,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:50,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:50,579 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 05:22:50,585 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 05:22:50,585 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:50,585 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:50,791 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-03-08 05:22:50,791 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:50,791 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361727960] [2025-03-08 05:22:50,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1361727960] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:50,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1540868943] [2025-03-08 05:22:50,792 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:50,792 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:50,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:50,794 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) [2025-03-08 05:22:50,796 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:22:50,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-08 05:22:51,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-08 05:22:51,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:51,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:51,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 05:22:51,111 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:51,248 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-03-08 05:22:51,249 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:51,249 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1540868943] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:51,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:51,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2025-03-08 05:22:51,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245955621] [2025-03-08 05:22:51,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:51,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:51,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:51,250 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:51,250 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:51,250 INFO L87 Difference]: Start difference. First operand 1896 states and 3114 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:51,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:51,675 INFO L93 Difference]: Finished difference Result 4817 states and 7948 transitions. [2025-03-08 05:22:51,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:51,675 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 130 [2025-03-08 05:22:51,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:51,693 INFO L225 Difference]: With dead ends: 4817 [2025-03-08 05:22:51,693 INFO L226 Difference]: Without dead ends: 2964 [2025-03-08 05:22:51,704 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-03-08 05:22:51,704 INFO L435 NwaCegarLoop]: 1125 mSDtfsCounter, 798 mSDsluCounter, 3295 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 800 SdHoareTripleChecker+Valid, 4420 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:51,704 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [800 Valid, 4420 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:22:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2964 states. [2025-03-08 05:22:51,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2964 to 2962. [2025-03-08 05:22:51,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2962 states, 2305 states have (on average 1.6047722342733188) internal successors, (3699), 2358 states have internal predecessors, (3699), 501 states have call successors, (501), 159 states have call predecessors, (501), 155 states have return successors, (640), 476 states have call predecessors, (640), 493 states have call successors, (640) [2025-03-08 05:22:51,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 4840 transitions. [2025-03-08 05:22:51,857 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 4840 transitions. Word has length 130 [2025-03-08 05:22:51,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:51,858 INFO L471 AbstractCegarLoop]: Abstraction has 2962 states and 4840 transitions. [2025-03-08 05:22:51,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 4 states have internal predecessors, (81), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:51,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 4840 transitions. [2025-03-08 05:22:51,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-08 05:22:51,861 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:51,861 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:51,869 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-08 05:22:52,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 05:22:52,066 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:52,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:52,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1448139595, now seen corresponding path program 1 times [2025-03-08 05:22:52,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:52,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377655413] [2025-03-08 05:22:52,067 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:52,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:52,084 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 05:22:52,093 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 05:22:52,093 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:52,093 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:52,174 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-08 05:22:52,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377655413] [2025-03-08 05:22:52,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377655413] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:52,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770992350] [2025-03-08 05:22:52,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:52,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:52,175 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:52,178 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) [2025-03-08 05:22:52,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:22:52,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 05:22:52,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 05:22:52,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:52,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:52,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:52,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:52,560 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 05:22:52,560 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:52,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770992350] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:52,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:52,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:52,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720945220] [2025-03-08 05:22:52,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:52,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:52,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:52,561 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:52,561 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:52,561 INFO L87 Difference]: Start difference. First operand 2962 states and 4840 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:53,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:53,117 INFO L93 Difference]: Finished difference Result 5945 states and 10019 transitions. [2025-03-08 05:22:53,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:53,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2025-03-08 05:22:53,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:53,136 INFO L225 Difference]: With dead ends: 5945 [2025-03-08 05:22:53,137 INFO L226 Difference]: Without dead ends: 3026 [2025-03-08 05:22:53,159 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:53,159 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 783 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2089 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:53,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2089 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:53,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3026 states. [2025-03-08 05:22:53,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3026 to 3026. [2025-03-08 05:22:53,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3026 states, 2361 states have (on average 1.6073697585768743) internal successors, (3795), 2414 states have internal predecessors, (3795), 501 states have call successors, (501), 167 states have call predecessors, (501), 163 states have return successors, (648), 476 states have call predecessors, (648), 493 states have call successors, (648) [2025-03-08 05:22:53,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3026 states to 3026 states and 4944 transitions. [2025-03-08 05:22:53,292 INFO L78 Accepts]: Start accepts. Automaton has 3026 states and 4944 transitions. Word has length 131 [2025-03-08 05:22:53,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:53,293 INFO L471 AbstractCegarLoop]: Abstraction has 3026 states and 4944 transitions. [2025-03-08 05:22:53,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:53,293 INFO L276 IsEmpty]: Start isEmpty. Operand 3026 states and 4944 transitions. [2025-03-08 05:22:53,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-08 05:22:53,300 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:53,300 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:53,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:53,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:53,502 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:53,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:53,503 INFO L85 PathProgramCache]: Analyzing trace with hash 107880391, now seen corresponding path program 1 times [2025-03-08 05:22:53,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:53,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170023642] [2025-03-08 05:22:53,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:53,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:53,517 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-08 05:22:53,524 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-08 05:22:53,525 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:53,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:53,604 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-08 05:22:53,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170023642] [2025-03-08 05:22:53,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170023642] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:53,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1213600988] [2025-03-08 05:22:53,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:53,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:53,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:53,606 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) [2025-03-08 05:22:53,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 05:22:53,718 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-08 05:22:53,854 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-08 05:22:53,854 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:53,854 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:53,859 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:53,862 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:53,961 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 05:22:53,961 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:53,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1213600988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:53,962 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:53,962 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:53,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047183473] [2025-03-08 05:22:53,962 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:53,962 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:53,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:53,963 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:53,963 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:53,963 INFO L87 Difference]: Start difference. First operand 3026 states and 4944 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:54,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:54,447 INFO L93 Difference]: Finished difference Result 6073 states and 10203 transitions. [2025-03-08 05:22:54,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:54,448 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2025-03-08 05:22:54,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:54,467 INFO L225 Difference]: With dead ends: 6073 [2025-03-08 05:22:54,467 INFO L226 Difference]: Without dead ends: 3090 [2025-03-08 05:22:54,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:54,480 INFO L435 NwaCegarLoop]: 818 mSDtfsCounter, 787 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 2086 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:54,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 2086 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:54,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3090 states. [2025-03-08 05:22:54,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3090 to 3090. [2025-03-08 05:22:54,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3090 states, 2417 states have (on average 1.6098469176665287) internal successors, (3891), 2470 states have internal predecessors, (3891), 501 states have call successors, (501), 175 states have call predecessors, (501), 171 states have return successors, (656), 476 states have call predecessors, (656), 493 states have call successors, (656) [2025-03-08 05:22:54,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3090 states to 3090 states and 5048 transitions. [2025-03-08 05:22:54,583 INFO L78 Accepts]: Start accepts. Automaton has 3090 states and 5048 transitions. Word has length 134 [2025-03-08 05:22:54,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:54,583 INFO L471 AbstractCegarLoop]: Abstraction has 3090 states and 5048 transitions. [2025-03-08 05:22:54,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:54,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3090 states and 5048 transitions. [2025-03-08 05:22:54,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-08 05:22:54,586 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:54,586 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:54,594 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 05:22:54,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:54,791 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:54,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:54,794 INFO L85 PathProgramCache]: Analyzing trace with hash -163746932, now seen corresponding path program 1 times [2025-03-08 05:22:54,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:54,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169670089] [2025-03-08 05:22:54,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:54,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:54,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-08 05:22:54,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-08 05:22:54,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:54,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:54,898 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 05:22:54,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:54,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169670089] [2025-03-08 05:22:54,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169670089] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:54,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [934101137] [2025-03-08 05:22:54,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:54,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:54,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:54,900 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) [2025-03-08 05:22:54,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 05:22:55,008 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-08 05:22:55,115 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-08 05:22:55,115 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:55,115 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:55,119 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:55,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:55,202 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:55,204 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:55,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [934101137] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:55,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:55,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:55,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211844088] [2025-03-08 05:22:55,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:55,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:55,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:55,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:55,206 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:55,206 INFO L87 Difference]: Start difference. First operand 3090 states and 5048 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:55,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:55,757 INFO L93 Difference]: Finished difference Result 6201 states and 10387 transitions. [2025-03-08 05:22:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:55,761 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2025-03-08 05:22:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:55,790 INFO L225 Difference]: With dead ends: 6201 [2025-03-08 05:22:55,790 INFO L226 Difference]: Without dead ends: 3154 [2025-03-08 05:22:55,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:55,807 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 781 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:55,808 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2083 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:55,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3154 states. [2025-03-08 05:22:55,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3154 to 3154. [2025-03-08 05:22:55,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3154 states, 2473 states have (on average 1.6122118883946623) internal successors, (3987), 2526 states have internal predecessors, (3987), 501 states have call successors, (501), 183 states have call predecessors, (501), 179 states have return successors, (664), 476 states have call predecessors, (664), 493 states have call successors, (664) [2025-03-08 05:22:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 5152 transitions. [2025-03-08 05:22:55,955 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 5152 transitions. Word has length 137 [2025-03-08 05:22:55,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:55,956 INFO L471 AbstractCegarLoop]: Abstraction has 3154 states and 5152 transitions. [2025-03-08 05:22:55,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:55,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 5152 transitions. [2025-03-08 05:22:55,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 05:22:55,959 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:55,960 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:55,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-08 05:22:56,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:56,160 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:56,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:56,161 INFO L85 PathProgramCache]: Analyzing trace with hash 604205790, now seen corresponding path program 1 times [2025-03-08 05:22:56,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:56,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595807113] [2025-03-08 05:22:56,161 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:56,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:56,172 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:56,179 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:56,179 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:56,179 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:56,242 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 05:22:56,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:56,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595807113] [2025-03-08 05:22:56,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595807113] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:56,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2015884919] [2025-03-08 05:22:56,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:56,242 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:56,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:56,244 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) [2025-03-08 05:22:56,246 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 05:22:56,353 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:56,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:56,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:56,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:56,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:22:56,470 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-08 05:22:56,551 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:56,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2015884919] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:56,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:56,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2025-03-08 05:22:56,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354398027] [2025-03-08 05:22:56,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:56,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:56,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:56,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:56,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:56,552 INFO L87 Difference]: Start difference. First operand 3154 states and 5152 transitions. Second operand has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:57,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:57,016 INFO L93 Difference]: Finished difference Result 6281 states and 10603 transitions. [2025-03-08 05:22:57,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:57,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 140 [2025-03-08 05:22:57,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:57,065 INFO L225 Difference]: With dead ends: 6281 [2025-03-08 05:22:57,065 INFO L226 Difference]: Without dead ends: 3170 [2025-03-08 05:22:57,074 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:57,075 INFO L435 NwaCegarLoop]: 815 mSDtfsCounter, 761 mSDsluCounter, 1268 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2083 SdHoareTripleChecker+Invalid, 459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:57,075 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2083 Invalid, 459 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:57,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3170 states. [2025-03-08 05:22:57,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3170 to 3170. [2025-03-08 05:22:57,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3170 states, 2481 states have (on average 1.5973397823458282) internal successors, (3963), 2542 states have internal predecessors, (3963), 501 states have call successors, (501), 183 states have call predecessors, (501), 187 states have return successors, (672), 476 states have call predecessors, (672), 493 states have call successors, (672) [2025-03-08 05:22:57,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3170 states to 3170 states and 5136 transitions. [2025-03-08 05:22:57,218 INFO L78 Accepts]: Start accepts. Automaton has 3170 states and 5136 transitions. Word has length 140 [2025-03-08 05:22:57,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:57,219 INFO L471 AbstractCegarLoop]: Abstraction has 3170 states and 5136 transitions. [2025-03-08 05:22:57,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.6) internal successors, (93), 4 states have internal predecessors, (93), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:57,219 INFO L276 IsEmpty]: Start isEmpty. Operand 3170 states and 5136 transitions. [2025-03-08 05:22:57,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 05:22:57,223 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:57,223 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:57,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:57,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:57,428 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:57,429 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:57,429 INFO L85 PathProgramCache]: Analyzing trace with hash -323053852, now seen corresponding path program 1 times [2025-03-08 05:22:57,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:57,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94438497] [2025-03-08 05:22:57,429 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:57,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:57,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:57,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:57,451 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:57,451 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:57,640 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:22:57,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94438497] [2025-03-08 05:22:57,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94438497] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:57,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494195572] [2025-03-08 05:22:57,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:57,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:57,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:57,643 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) [2025-03-08 05:22:57,644 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 05:22:57,757 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:57,869 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:57,869 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:57,869 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:57,874 INFO L256 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 05:22:57,877 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:58,032 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:22:58,032 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:58,032 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494195572] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:58,032 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:58,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-08 05:22:58,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754407592] [2025-03-08 05:22:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:58,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:58,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:58,033 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:58,033 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:22:58,033 INFO L87 Difference]: Start difference. First operand 3170 states and 5136 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-08 05:22:59,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:59,328 INFO L93 Difference]: Finished difference Result 6545 states and 10629 transitions. [2025-03-08 05:22:59,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:59,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 140 [2025-03-08 05:22:59,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:59,347 INFO L225 Difference]: With dead ends: 6545 [2025-03-08 05:22:59,348 INFO L226 Difference]: Without dead ends: 3423 [2025-03-08 05:22:59,359 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:59,359 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 1719 mSDsluCounter, 515 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 420 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1826 SdHoareTripleChecker+Valid, 918 SdHoareTripleChecker+Invalid, 2142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 420 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:59,359 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1826 Valid, 918 Invalid, 2142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [420 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 05:22:59,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2025-03-08 05:22:59,476 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 3169. [2025-03-08 05:22:59,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3169 states, 2375 states have (on average 1.5566315789473684) internal successors, (3697), 2474 states have internal predecessors, (3697), 606 states have call successors, (606), 169 states have call predecessors, (606), 187 states have return successors, (754), 577 states have call predecessors, (754), 598 states have call successors, (754) [2025-03-08 05:22:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3169 states to 3169 states and 5057 transitions. [2025-03-08 05:22:59,496 INFO L78 Accepts]: Start accepts. Automaton has 3169 states and 5057 transitions. Word has length 140 [2025-03-08 05:22:59,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:59,497 INFO L471 AbstractCegarLoop]: Abstraction has 3169 states and 5057 transitions. [2025-03-08 05:22:59,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-08 05:22:59,497 INFO L276 IsEmpty]: Start isEmpty. Operand 3169 states and 5057 transitions. [2025-03-08 05:22:59,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 05:22:59,500 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:59,501 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:22:59,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:59,701 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,SelfDestructingSolverStorable22 [2025-03-08 05:22:59,701 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:59,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:59,702 INFO L85 PathProgramCache]: Analyzing trace with hash -2104553787, now seen corresponding path program 1 times [2025-03-08 05:22:59,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:59,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424863641] [2025-03-08 05:22:59,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:59,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:59,714 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:59,721 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:59,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:59,722 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:59,889 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:22:59,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424863641] [2025-03-08 05:22:59,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424863641] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:59,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533499345] [2025-03-08 05:22:59,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:59,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:59,889 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:59,891 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) [2025-03-08 05:22:59,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 05:22:59,999 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:23:00,096 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:23:00,097 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:00,097 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:00,102 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-08 05:23:00,108 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:00,227 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 05:23:00,227 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:00,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533499345] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:00,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:00,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2025-03-08 05:23:00,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559883418] [2025-03-08 05:23:00,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:00,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:23:00,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:00,229 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:23:00,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:23:00,230 INFO L87 Difference]: Start difference. First operand 3169 states and 5057 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-08 05:23:02,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:02,793 INFO L93 Difference]: Finished difference Result 7376 states and 11858 transitions. [2025-03-08 05:23:02,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 05:23:02,793 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2025-03-08 05:23:02,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:02,816 INFO L225 Difference]: With dead ends: 7376 [2025-03-08 05:23:02,816 INFO L226 Difference]: Without dead ends: 4248 [2025-03-08 05:23:02,831 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:23:02,832 INFO L435 NwaCegarLoop]: 394 mSDtfsCounter, 2350 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 4862 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2444 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 5404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 4862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:02,832 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2444 Valid, 2131 Invalid, 5404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 4862 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2025-03-08 05:23:02,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4248 states. [2025-03-08 05:23:02,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4248 to 3695. [2025-03-08 05:23:02,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3695 states, 2767 states have (on average 1.553668232743043) internal successors, (4299), 2888 states have internal predecessors, (4299), 696 states have call successors, (696), 191 states have call predecessors, (696), 231 states have return successors, (899), 667 states have call predecessors, (899), 688 states have call successors, (899) [2025-03-08 05:23:02,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3695 states to 3695 states and 5894 transitions. [2025-03-08 05:23:02,989 INFO L78 Accepts]: Start accepts. Automaton has 3695 states and 5894 transitions. Word has length 140 [2025-03-08 05:23:02,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:02,989 INFO L471 AbstractCegarLoop]: Abstraction has 3695 states and 5894 transitions. [2025-03-08 05:23:02,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-08 05:23:02,990 INFO L276 IsEmpty]: Start isEmpty. Operand 3695 states and 5894 transitions. [2025-03-08 05:23:02,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 05:23:02,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:02,993 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:23:03,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-08 05:23:03,194 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-08 05:23:03,194 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:03,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:03,195 INFO L85 PathProgramCache]: Analyzing trace with hash 2050428127, now seen corresponding path program 1 times [2025-03-08 05:23:03,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:03,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190810280] [2025-03-08 05:23:03,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:03,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:03,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 05:23:03,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 05:23:03,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:03,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:03,412 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:23:03,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:03,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190810280] [2025-03-08 05:23:03,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190810280] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:03,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029482916] [2025-03-08 05:23:03,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:03,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:03,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:03,415 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) [2025-03-08 05:23:03,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 05:23:03,522 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 05:23:03,615 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 05:23:03,615 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:03,615 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:03,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 05:23:03,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:03,727 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:23:03,727 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:03,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029482916] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:03,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:03,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:23:03,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25660195] [2025-03-08 05:23:03,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:03,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:23:03,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:03,728 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:23:03,729 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:23:03,729 INFO L87 Difference]: Start difference. First operand 3695 states and 5894 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-08 05:23:06,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:06,556 INFO L93 Difference]: Finished difference Result 10074 states and 16403 transitions. [2025-03-08 05:23:06,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 05:23:06,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2025-03-08 05:23:06,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:06,589 INFO L225 Difference]: With dead ends: 10074 [2025-03-08 05:23:06,589 INFO L226 Difference]: Without dead ends: 6424 [2025-03-08 05:23:06,605 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:23:06,606 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 2627 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 5935 mSolverCounterSat, 658 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2725 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 6593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 658 IncrementalHoareTripleChecker+Valid, 5935 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:06,606 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2725 Valid, 2275 Invalid, 6593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [658 Valid, 5935 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 05:23:06,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6424 states. [2025-03-08 05:23:06,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6424 to 5826. [2025-03-08 05:23:06,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5826 states, 4365 states have (on average 1.5518900343642612) internal successors, (6774), 4563 states have internal predecessors, (6774), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 376 states have return successors, (1520), 1048 states have call predecessors, (1520), 1076 states have call successors, (1520) [2025-03-08 05:23:06,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5826 states to 5826 states and 9378 transitions. [2025-03-08 05:23:06,852 INFO L78 Accepts]: Start accepts. Automaton has 5826 states and 9378 transitions. Word has length 142 [2025-03-08 05:23:06,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:06,852 INFO L471 AbstractCegarLoop]: Abstraction has 5826 states and 9378 transitions. [2025-03-08 05:23:06,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-08 05:23:06,852 INFO L276 IsEmpty]: Start isEmpty. Operand 5826 states and 9378 transitions. [2025-03-08 05:23:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 05:23:06,855 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:06,856 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:23:06,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 05:23:07,056 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,SelfDestructingSolverStorable24 [2025-03-08 05:23:07,056 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:07,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:07,057 INFO L85 PathProgramCache]: Analyzing trace with hash 412196521, now seen corresponding path program 1 times [2025-03-08 05:23:07,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:07,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1599107403] [2025-03-08 05:23:07,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:07,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:07,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:23:07,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:23:07,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:07,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:07,310 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:23:07,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:07,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1599107403] [2025-03-08 05:23:07,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1599107403] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:07,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844968500] [2025-03-08 05:23:07,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:07,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:07,313 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) [2025-03-08 05:23:07,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 05:23:07,472 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:23:07,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:23:07,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:07,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:07,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:23:07,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:23:07,601 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:07,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844968500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:07,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:07,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-03-08 05:23:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350958678] [2025-03-08 05:23:07,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:07,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:23:07,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:07,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:23:07,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:23:07,602 INFO L87 Difference]: Start difference. First operand 5826 states and 9378 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:23:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:07,856 INFO L93 Difference]: Finished difference Result 13755 states and 22428 transitions. [2025-03-08 05:23:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:23:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-08 05:23:07,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:07,930 INFO L225 Difference]: With dead ends: 13755 [2025-03-08 05:23:07,930 INFO L226 Difference]: Without dead ends: 7978 [2025-03-08 05:23:07,944 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:23:07,944 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 806 mSDsluCounter, 834 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 806 SdHoareTripleChecker+Valid, 2398 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 [2025-03-08 05:23:07,945 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [806 Valid, 2398 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:07,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7978 states. [2025-03-08 05:23:08,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7978 to 5814. [2025-03-08 05:23:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 4357 states have (on average 1.5510672481064953) internal successors, (6758), 4551 states have internal predecessors, (6758), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 372 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 9326 transitions. [2025-03-08 05:23:08,173 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 9326 transitions. Word has length 147 [2025-03-08 05:23:08,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:08,174 INFO L471 AbstractCegarLoop]: Abstraction has 5814 states and 9326 transitions. [2025-03-08 05:23:08,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:23:08,174 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 9326 transitions. [2025-03-08 05:23:08,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 05:23:08,178 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:08,178 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:23:08,189 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 05:23:08,379 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,SelfDestructingSolverStorable25 [2025-03-08 05:23:08,380 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:08,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:08,380 INFO L85 PathProgramCache]: Analyzing trace with hash 741962282, now seen corresponding path program 1 times [2025-03-08 05:23:08,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:08,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136179103] [2025-03-08 05:23:08,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:08,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:08,410 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:23:08,423 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:23:08,423 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:08,423 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:08,653 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:23:08,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:08,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136179103] [2025-03-08 05:23:08,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136179103] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:08,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [754385369] [2025-03-08 05:23:08,654 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:08,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:08,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:08,656 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) [2025-03-08 05:23:08,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 05:23:08,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:23:08,888 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:23:08,888 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:08,888 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:08,892 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 05:23:08,898 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:08,989 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:23:08,989 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:08,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [754385369] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:08,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:08,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-08 05:23:08,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396865290] [2025-03-08 05:23:08,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:08,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:23:08,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:08,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:23:08,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:23:08,991 INFO L87 Difference]: Start difference. First operand 5814 states and 9326 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:23:09,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:09,316 INFO L93 Difference]: Finished difference Result 5816 states and 9327 transitions. [2025-03-08 05:23:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:23:09,316 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-08 05:23:09,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:09,346 INFO L225 Difference]: With dead ends: 5816 [2025-03-08 05:23:09,346 INFO L226 Difference]: Without dead ends: 5814 [2025-03-08 05:23:09,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:23:09,352 INFO L435 NwaCegarLoop]: 927 mSDtfsCounter, 352 mSDsluCounter, 3302 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 4229 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:09,352 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 4229 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:09,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2025-03-08 05:23:09,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 5814. [2025-03-08 05:23:09,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5814 states, 4357 states have (on average 1.5444112921735138) internal successors, (6729), 4551 states have internal predecessors, (6729), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 372 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:09,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5814 states to 5814 states and 9297 transitions. [2025-03-08 05:23:09,639 INFO L78 Accepts]: Start accepts. Automaton has 5814 states and 9297 transitions. Word has length 147 [2025-03-08 05:23:09,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:09,640 INFO L471 AbstractCegarLoop]: Abstraction has 5814 states and 9297 transitions. [2025-03-08 05:23:09,640 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:23:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 5814 states and 9297 transitions. [2025-03-08 05:23:09,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-03-08 05:23:09,646 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:09,646 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 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] [2025-03-08 05:23:09,659 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-08 05:23:09,847 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,SelfDestructingSolverStorable26 [2025-03-08 05:23:09,847 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:09,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:09,848 INFO L85 PathProgramCache]: Analyzing trace with hash -988068424, now seen corresponding path program 1 times [2025-03-08 05:23:09,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:09,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218992697] [2025-03-08 05:23:09,848 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:09,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:09,865 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-08 05:23:09,870 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-08 05:23:09,871 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:09,871 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:10,055 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-08 05:23:10,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218992697] [2025-03-08 05:23:10,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218992697] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:10,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [24449568] [2025-03-08 05:23:10,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:10,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:10,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:10,057 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) [2025-03-08 05:23:10,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 05:23:10,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-08 05:23:10,286 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-08 05:23:10,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:10,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:10,291 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:10,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:10,325 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:23:10,326 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:10,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [24449568] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:10,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:10,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:10,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777442558] [2025-03-08 05:23:10,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:10,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:10,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:10,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:10,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:10,328 INFO L87 Difference]: Start difference. First operand 5814 states and 9297 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:10,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:10,629 INFO L93 Difference]: Finished difference Result 11853 states and 19204 transitions. [2025-03-08 05:23:10,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:10,629 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2025-03-08 05:23:10,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:10,657 INFO L225 Difference]: With dead ends: 11853 [2025-03-08 05:23:10,657 INFO L226 Difference]: Without dead ends: 6084 [2025-03-08 05:23:10,676 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:10,677 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 144 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2323 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 [2025-03-08 05:23:10,677 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2323 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:10,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6084 states. [2025-03-08 05:23:10,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6084 to 6048. [2025-03-08 05:23:10,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6048 states, 4585 states have (on average 1.5631406761177753) internal successors, (7167), 4779 states have internal predecessors, (7167), 1084 states have call successors, (1084), 297 states have call predecessors, (1084), 378 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:10,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6048 states to 6048 states and 9735 transitions. [2025-03-08 05:23:10,882 INFO L78 Accepts]: Start accepts. Automaton has 6048 states and 9735 transitions. Word has length 170 [2025-03-08 05:23:10,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:10,882 INFO L471 AbstractCegarLoop]: Abstraction has 6048 states and 9735 transitions. [2025-03-08 05:23:10,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:10,883 INFO L276 IsEmpty]: Start isEmpty. Operand 6048 states and 9735 transitions. [2025-03-08 05:23:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-08 05:23:10,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:10,886 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 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] [2025-03-08 05:23:10,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-08 05:23:11,087 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,SelfDestructingSolverStorable27 [2025-03-08 05:23:11,087 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:11,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:11,089 INFO L85 PathProgramCache]: Analyzing trace with hash 948067778, now seen corresponding path program 1 times [2025-03-08 05:23:11,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:11,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088035099] [2025-03-08 05:23:11,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:11,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:11,107 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-08 05:23:11,112 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-08 05:23:11,112 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:11,112 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:11,318 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 05:23:11,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:11,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088035099] [2025-03-08 05:23:11,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088035099] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:11,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [298689988] [2025-03-08 05:23:11,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:11,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:11,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:11,321 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) [2025-03-08 05:23:11,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-08 05:23:11,441 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-08 05:23:11,551 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-08 05:23:11,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:11,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:11,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:11,558 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:11,583 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 05:23:11,583 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:11,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [298689988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:11,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:11,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:11,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165196370] [2025-03-08 05:23:11,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:11,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:11,583 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:11,584 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:11,584 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:11,584 INFO L87 Difference]: Start difference. First operand 6048 states and 9735 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:11,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:11,859 INFO L93 Difference]: Finished difference Result 12339 states and 20080 transitions. [2025-03-08 05:23:11,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:11,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2025-03-08 05:23:11,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:11,898 INFO L225 Difference]: With dead ends: 12339 [2025-03-08 05:23:11,898 INFO L226 Difference]: Without dead ends: 6336 [2025-03-08 05:23:11,920 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:11,921 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 142 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2320 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 [2025-03-08 05:23:11,921 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2320 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:11,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6336 states. [2025-03-08 05:23:12,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6336 to 6282. [2025-03-08 05:23:12,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6282 states, 4813 states have (on average 1.5800955744857677) internal successors, (7605), 5007 states have internal predecessors, (7605), 1084 states have call successors, (1084), 303 states have call predecessors, (1084), 384 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:12,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6282 states to 6282 states and 10173 transitions. [2025-03-08 05:23:12,305 INFO L78 Accepts]: Start accepts. Automaton has 6282 states and 10173 transitions. Word has length 175 [2025-03-08 05:23:12,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:12,306 INFO L471 AbstractCegarLoop]: Abstraction has 6282 states and 10173 transitions. [2025-03-08 05:23:12,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:12,306 INFO L276 IsEmpty]: Start isEmpty. Operand 6282 states and 10173 transitions. [2025-03-08 05:23:12,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-08 05:23:12,311 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:12,311 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 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] [2025-03-08 05:23:12,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:12,511 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:12,512 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:12,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:12,512 INFO L85 PathProgramCache]: Analyzing trace with hash 319733218, now seen corresponding path program 1 times [2025-03-08 05:23:12,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:12,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735847058] [2025-03-08 05:23:12,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:12,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:12,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 05:23:12,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 05:23:12,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:12,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:12,775 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-08 05:23:12,775 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:12,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735847058] [2025-03-08 05:23:12,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735847058] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:12,775 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1234421991] [2025-03-08 05:23:12,775 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:12,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:12,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:12,777 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) [2025-03-08 05:23:12,778 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-08 05:23:12,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 05:23:13,000 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 05:23:13,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:13,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:13,004 INFO L256 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:13,007 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:13,028 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:23:13,028 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:13,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1234421991] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:13,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:13,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:13,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770489108] [2025-03-08 05:23:13,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:13,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:13,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:13,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:13,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:13,029 INFO L87 Difference]: Start difference. First operand 6282 states and 10173 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:13,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:13,332 INFO L93 Difference]: Finished difference Result 12825 states and 20956 transitions. [2025-03-08 05:23:13,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:13,332 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2025-03-08 05:23:13,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:13,358 INFO L225 Difference]: With dead ends: 12825 [2025-03-08 05:23:13,358 INFO L226 Difference]: Without dead ends: 6588 [2025-03-08 05:23:13,373 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:13,374 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 140 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2317 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 [2025-03-08 05:23:13,374 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2317 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:13,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6588 states. [2025-03-08 05:23:13,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6588 to 6516. [2025-03-08 05:23:13,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6516 states, 5041 states have (on average 1.5955167625471136) internal successors, (8043), 5235 states have internal predecessors, (8043), 1084 states have call successors, (1084), 309 states have call predecessors, (1084), 390 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:13,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6516 states to 6516 states and 10611 transitions. [2025-03-08 05:23:13,590 INFO L78 Accepts]: Start accepts. Automaton has 6516 states and 10611 transitions. Word has length 179 [2025-03-08 05:23:13,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:13,590 INFO L471 AbstractCegarLoop]: Abstraction has 6516 states and 10611 transitions. [2025-03-08 05:23:13,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:13,590 INFO L276 IsEmpty]: Start isEmpty. Operand 6516 states and 10611 transitions. [2025-03-08 05:23:13,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-08 05:23:13,593 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:13,594 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 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] [2025-03-08 05:23:13,602 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:13,794 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:13,794 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:13,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:13,796 INFO L85 PathProgramCache]: Analyzing trace with hash 1776249174, now seen corresponding path program 1 times [2025-03-08 05:23:13,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:13,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444163763] [2025-03-08 05:23:13,796 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:13,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:13,810 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-08 05:23:13,815 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-08 05:23:13,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:13,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:13,987 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-03-08 05:23:13,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444163763] [2025-03-08 05:23:13,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444163763] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:13,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2046739025] [2025-03-08 05:23:13,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:13,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:13,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:13,990 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) [2025-03-08 05:23:13,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-08 05:23:14,114 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-08 05:23:14,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-08 05:23:14,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:14,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:14,223 INFO L256 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:14,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:14,246 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:23:14,246 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:14,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2046739025] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:14,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:14,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:14,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881650336] [2025-03-08 05:23:14,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:14,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:14,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:14,247 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:14,247 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:14,247 INFO L87 Difference]: Start difference. First operand 6516 states and 10611 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:14,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:14,569 INFO L93 Difference]: Finished difference Result 13311 states and 21832 transitions. [2025-03-08 05:23:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:14,570 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2025-03-08 05:23:14,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:14,611 INFO L225 Difference]: With dead ends: 13311 [2025-03-08 05:23:14,612 INFO L226 Difference]: Without dead ends: 6840 [2025-03-08 05:23:14,630 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:14,631 INFO L435 NwaCegarLoop]: 779 mSDtfsCounter, 138 mSDsluCounter, 1535 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2314 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 [2025-03-08 05:23:14,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2314 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:14,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6840 states. [2025-03-08 05:23:14,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6840 to 6750. [2025-03-08 05:23:14,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6750 states, 5269 states have (on average 1.6096033402922756) internal successors, (8481), 5463 states have internal predecessors, (8481), 1084 states have call successors, (1084), 315 states have call predecessors, (1084), 396 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6750 states to 6750 states and 11049 transitions. [2025-03-08 05:23:14,857 INFO L78 Accepts]: Start accepts. Automaton has 6750 states and 11049 transitions. Word has length 182 [2025-03-08 05:23:14,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:14,857 INFO L471 AbstractCegarLoop]: Abstraction has 6750 states and 11049 transitions. [2025-03-08 05:23:14,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:14,858 INFO L276 IsEmpty]: Start isEmpty. Operand 6750 states and 11049 transitions. [2025-03-08 05:23:14,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-08 05:23:14,862 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:14,862 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 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] [2025-03-08 05:23:14,871 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:15,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:15,063 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:15,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:15,063 INFO L85 PathProgramCache]: Analyzing trace with hash 260240704, now seen corresponding path program 1 times [2025-03-08 05:23:15,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:15,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607427025] [2025-03-08 05:23:15,063 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:15,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:15,077 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:23:15,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:23:15,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:15,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:15,244 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-08 05:23:15,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:15,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607427025] [2025-03-08 05:23:15,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607427025] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:15,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379452494] [2025-03-08 05:23:15,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:15,245 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:15,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:15,247 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:15,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-08 05:23:15,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:23:15,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:23:15,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:15,460 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:15,465 INFO L256 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:15,467 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:15,494 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 05:23:15,494 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:15,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [379452494] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:15,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:15,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:15,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146605781] [2025-03-08 05:23:15,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:15,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:15,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:15,495 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:15,495 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:15,495 INFO L87 Difference]: Start difference. First operand 6750 states and 11049 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:15,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:15,810 INFO L93 Difference]: Finished difference Result 13797 states and 22708 transitions. [2025-03-08 05:23:15,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:15,810 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 184 [2025-03-08 05:23:15,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:15,845 INFO L225 Difference]: With dead ends: 13797 [2025-03-08 05:23:15,845 INFO L226 Difference]: Without dead ends: 7092 [2025-03-08 05:23:15,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:15,866 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 136 mSDsluCounter, 1530 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2307 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:15,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2307 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:15,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7092 states. [2025-03-08 05:23:16,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7092 to 6984. [2025-03-08 05:23:16,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6984 states, 5497 states have (on average 1.6225213752956158) internal successors, (8919), 5691 states have internal predecessors, (8919), 1084 states have call successors, (1084), 321 states have call predecessors, (1084), 402 states have return successors, (1484), 1048 states have call predecessors, (1484), 1076 states have call successors, (1484) [2025-03-08 05:23:16,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6984 states to 6984 states and 11487 transitions. [2025-03-08 05:23:16,090 INFO L78 Accepts]: Start accepts. Automaton has 6984 states and 11487 transitions. Word has length 184 [2025-03-08 05:23:16,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:16,091 INFO L471 AbstractCegarLoop]: Abstraction has 6984 states and 11487 transitions. [2025-03-08 05:23:16,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:23:16,091 INFO L276 IsEmpty]: Start isEmpty. Operand 6984 states and 11487 transitions. [2025-03-08 05:23:16,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-08 05:23:16,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:16,135 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 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, 1, 1, 1] [2025-03-08 05:23:16,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:16,336 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:16,339 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:16,339 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:16,340 INFO L85 PathProgramCache]: Analyzing trace with hash -93533084, now seen corresponding path program 1 times [2025-03-08 05:23:16,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:16,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381383103] [2025-03-08 05:23:16,340 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:16,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:16,351 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:23:16,362 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:23:16,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:16,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:16,631 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-08 05:23:16,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:16,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381383103] [2025-03-08 05:23:16,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381383103] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:16,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393171896] [2025-03-08 05:23:16,635 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:16,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:16,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:16,637 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:16,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-08 05:23:16,766 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:23:16,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:23:16,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:16,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:16,889 INFO L256 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-08 05:23:16,893 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:17,024 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-08 05:23:17,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:17,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393171896] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:17,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:17,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2025-03-08 05:23:17,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203523816] [2025-03-08 05:23:17,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:17,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:23:17,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:17,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:23:17,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:23:17,025 INFO L87 Difference]: Start difference. First operand 6984 states and 11487 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-08 05:23:19,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:19,235 INFO L93 Difference]: Finished difference Result 21698 states and 36271 transitions. [2025-03-08 05:23:19,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 05:23:19,239 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2025-03-08 05:23:19,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:19,289 INFO L225 Difference]: With dead ends: 21698 [2025-03-08 05:23:19,289 INFO L226 Difference]: Without dead ends: 11438 [2025-03-08 05:23:19,318 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2025-03-08 05:23:19,319 INFO L435 NwaCegarLoop]: 369 mSDtfsCounter, 1920 mSDsluCounter, 1929 mSDsCounter, 0 mSdLazyCounter, 3902 mSolverCounterSat, 469 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2020 SdHoareTripleChecker+Valid, 2298 SdHoareTripleChecker+Invalid, 4371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 469 IncrementalHoareTripleChecker+Valid, 3902 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:19,319 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2020 Valid, 2298 Invalid, 4371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [469 Valid, 3902 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 05:23:19,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11438 states. [2025-03-08 05:23:19,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11438 to 11305. [2025-03-08 05:23:19,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11305 states, 8799 states have (on average 1.6202977611092169) internal successors, (14257), 9170 states have internal predecessors, (14257), 1815 states have call successors, (1815), 507 states have call predecessors, (1815), 690 states have return successors, (2553), 1776 states have call predecessors, (2553), 1807 states have call successors, (2553) [2025-03-08 05:23:19,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11305 states to 11305 states and 18625 transitions. [2025-03-08 05:23:19,963 INFO L78 Accepts]: Start accepts. Automaton has 11305 states and 18625 transitions. Word has length 184 [2025-03-08 05:23:19,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:19,963 INFO L471 AbstractCegarLoop]: Abstraction has 11305 states and 18625 transitions. [2025-03-08 05:23:19,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-08 05:23:19,964 INFO L276 IsEmpty]: Start isEmpty. Operand 11305 states and 18625 transitions. [2025-03-08 05:23:19,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-03-08 05:23:19,971 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:19,971 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 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, 1, 1, 1, 1, 1, 1] [2025-03-08 05:23:19,979 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-08 05:23:20,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:20,172 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:20,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:20,173 INFO L85 PathProgramCache]: Analyzing trace with hash -83858376, now seen corresponding path program 1 times [2025-03-08 05:23:20,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:20,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735670637] [2025-03-08 05:23:20,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:20,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:20,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-08 05:23:20,188 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-08 05:23:20,189 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:20,189 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:20,270 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 05:23:20,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:20,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735670637] [2025-03-08 05:23:20,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735670637] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:20,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:23:20,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 05:23:20,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976543649] [2025-03-08 05:23:20,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:20,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:23:20,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:20,271 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:23:20,271 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:23:20,271 INFO L87 Difference]: Start difference. First operand 11305 states and 18625 transitions. Second operand has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-08 05:23:20,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:20,800 INFO L93 Difference]: Finished difference Result 22307 states and 36761 transitions. [2025-03-08 05:23:20,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 05:23:20,801 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2025-03-08 05:23:20,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:20,954 INFO L225 Difference]: With dead ends: 22307 [2025-03-08 05:23:20,954 INFO L226 Difference]: Without dead ends: 10687 [2025-03-08 05:23:21,000 INFO L434 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 [2025-03-08 05:23:21,001 INFO L435 NwaCegarLoop]: 820 mSDtfsCounter, 33 mSDsluCounter, 4888 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5708 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:21,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5708 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:21,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10687 states. [2025-03-08 05:23:21,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10687 to 10663. [2025-03-08 05:23:21,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10663 states, 8392 states have (on average 1.632745471877979) internal successors, (13702), 8738 states have internal predecessors, (13702), 1630 states have call successors, (1630), 483 states have call predecessors, (1630), 640 states have return successors, (2201), 1570 states have call predecessors, (2201), 1622 states have call successors, (2201) [2025-03-08 05:23:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10663 states to 10663 states and 17533 transitions. [2025-03-08 05:23:21,469 INFO L78 Accepts]: Start accepts. Automaton has 10663 states and 17533 transitions. Word has length 187 [2025-03-08 05:23:21,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:21,469 INFO L471 AbstractCegarLoop]: Abstraction has 10663 states and 17533 transitions. [2025-03-08 05:23:21,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-08 05:23:21,470 INFO L276 IsEmpty]: Start isEmpty. Operand 10663 states and 17533 transitions. [2025-03-08 05:23:21,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2025-03-08 05:23:21,482 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:21,483 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 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, 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, 3, 3, 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] [2025-03-08 05:23:21,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2025-03-08 05:23:21,483 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:21,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:21,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1473854631, now seen corresponding path program 1 times [2025-03-08 05:23:21,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:21,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874578496] [2025-03-08 05:23:21,484 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:21,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:21,527 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 530 statements into 1 equivalence classes. [2025-03-08 05:23:21,539 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 530 of 530 statements. [2025-03-08 05:23:21,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:21,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:22,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:22,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874578496] [2025-03-08 05:23:22,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874578496] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:22,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200796913] [2025-03-08 05:23:22,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:22,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:22,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:22,112 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:22,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-08 05:23:22,293 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 530 statements into 1 equivalence classes. [2025-03-08 05:23:22,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 530 of 530 statements. [2025-03-08 05:23:22,559 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:22,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:22,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:23:22,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:22,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-03-08 05:23:22,600 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:22,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200796913] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:22,600 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:22,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-03-08 05:23:22,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473520792] [2025-03-08 05:23:22,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:22,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:23:22,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:22,601 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:23:22,601 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:23:22,602 INFO L87 Difference]: Start difference. First operand 10663 states and 17533 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-08 05:23:23,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:23,127 INFO L93 Difference]: Finished difference Result 21821 states and 36309 transitions. [2025-03-08 05:23:23,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:23:23,128 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 530 [2025-03-08 05:23:23,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:23,236 INFO L225 Difference]: With dead ends: 21821 [2025-03-08 05:23:23,236 INFO L226 Difference]: Without dead ends: 16242 [2025-03-08 05:23:23,262 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:23:23,263 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 839 mSDsluCounter, 806 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:23,263 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1661 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:23,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16242 states. [2025-03-08 05:23:23,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16242 to 16240. [2025-03-08 05:23:23,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16240 states, 12728 states have (on average 1.6320710245128849) internal successors, (20773), 13281 states have internal predecessors, (20773), 2542 states have call successors, (2542), 733 states have call predecessors, (2542), 969 states have return successors, (3600), 2483 states have call predecessors, (3600), 2530 states have call successors, (3600) [2025-03-08 05:23:23,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16240 states to 16240 states and 26915 transitions. [2025-03-08 05:23:23,982 INFO L78 Accepts]: Start accepts. Automaton has 16240 states and 26915 transitions. Word has length 530 [2025-03-08 05:23:23,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:23,983 INFO L471 AbstractCegarLoop]: Abstraction has 16240 states and 26915 transitions. [2025-03-08 05:23:23,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 3 states have call successors, (39), 3 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-08 05:23:23,983 INFO L276 IsEmpty]: Start isEmpty. Operand 16240 states and 26915 transitions. [2025-03-08 05:23:23,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2025-03-08 05:23:23,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:23,993 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 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, 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, 3, 3, 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] [2025-03-08 05:23:24,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:24,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:24,194 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:24,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:24,194 INFO L85 PathProgramCache]: Analyzing trace with hash -496743950, now seen corresponding path program 1 times [2025-03-08 05:23:24,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:24,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054375583] [2025-03-08 05:23:24,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:24,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:24,226 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 531 statements into 1 equivalence classes. [2025-03-08 05:23:24,235 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 531 of 531 statements. [2025-03-08 05:23:24,235 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:24,235 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:24,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:24,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:24,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054375583] [2025-03-08 05:23:24,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054375583] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:24,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [890580064] [2025-03-08 05:23:24,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:24,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:24,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:24,797 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:24,798 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-08 05:23:25,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 531 statements into 1 equivalence classes. [2025-03-08 05:23:25,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 531 of 531 statements. [2025-03-08 05:23:25,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:25,309 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:25,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 4039 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:25,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:25,365 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-03-08 05:23:25,365 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:25,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [890580064] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:25,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:25,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:25,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344114723] [2025-03-08 05:23:25,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:25,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:25,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:25,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:25,367 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:25,367 INFO L87 Difference]: Start difference. First operand 16240 states and 26915 transitions. Second operand has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:23:25,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:25,997 INFO L93 Difference]: Finished difference Result 32573 states and 54510 transitions. [2025-03-08 05:23:25,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:25,998 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 531 [2025-03-08 05:23:25,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:26,093 INFO L225 Difference]: With dead ends: 32573 [2025-03-08 05:23:26,093 INFO L226 Difference]: Without dead ends: 16375 [2025-03-08 05:23:26,153 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:26,153 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 22 mSDsluCounter, 1624 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2448 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:26,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2448 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:26,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16375 states. [2025-03-08 05:23:26,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16375 to 16375. [2025-03-08 05:23:26,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16375 states, 12848 states have (on average 1.6331724782067247) internal successors, (20983), 13401 states have internal predecessors, (20983), 2542 states have call successors, (2542), 748 states have call predecessors, (2542), 984 states have return successors, (3600), 2483 states have call predecessors, (3600), 2530 states have call successors, (3600) [2025-03-08 05:23:26,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16375 states to 16375 states and 27125 transitions. [2025-03-08 05:23:26,799 INFO L78 Accepts]: Start accepts. Automaton has 16375 states and 27125 transitions. Word has length 531 [2025-03-08 05:23:26,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:26,799 INFO L471 AbstractCegarLoop]: Abstraction has 16375 states and 27125 transitions. [2025-03-08 05:23:26,799 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.75) internal successors, (215), 4 states have internal predecessors, (215), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:23:26,799 INFO L276 IsEmpty]: Start isEmpty. Operand 16375 states and 27125 transitions. [2025-03-08 05:23:26,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2025-03-08 05:23:26,809 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:26,809 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 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, 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, 3, 3, 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] [2025-03-08 05:23:26,819 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-08 05:23:27,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-08 05:23:27,010 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:27,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:27,010 INFO L85 PathProgramCache]: Analyzing trace with hash 356515901, now seen corresponding path program 1 times [2025-03-08 05:23:27,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:27,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095075887] [2025-03-08 05:23:27,010 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:27,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:27,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-03-08 05:23:27,051 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-03-08 05:23:27,051 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:27,051 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:27,651 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:27,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:27,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095075887] [2025-03-08 05:23:27,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095075887] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:27,651 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153863010] [2025-03-08 05:23:27,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:27,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:27,652 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:27,655 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:27,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-08 05:23:27,855 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-03-08 05:23:28,110 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-03-08 05:23:28,111 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:28,111 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:28,122 INFO L256 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:28,129 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:28,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2025-03-08 05:23:28,156 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:28,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153863010] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:28,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:28,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:28,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444563776] [2025-03-08 05:23:28,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:28,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:28,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:28,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:28,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:28,158 INFO L87 Difference]: Start difference. First operand 16375 states and 27125 transitions. Second operand has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:23:28,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:28,744 INFO L93 Difference]: Finished difference Result 32843 states and 54870 transitions. [2025-03-08 05:23:28,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:28,745 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 532 [2025-03-08 05:23:28,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:28,889 INFO L225 Difference]: With dead ends: 32843 [2025-03-08 05:23:28,889 INFO L226 Difference]: Without dead ends: 16510 [2025-03-08 05:23:28,936 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:28,936 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 20 mSDsluCounter, 1620 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2442 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:28,936 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2442 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:28,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16510 states. [2025-03-08 05:23:29,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16510 to 16510. [2025-03-08 05:23:29,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16510 states, 12968 states have (on average 1.6342535471930908) internal successors, (21193), 13521 states have internal predecessors, (21193), 2542 states have call successors, (2542), 763 states have call predecessors, (2542), 999 states have return successors, (3600), 2483 states have call predecessors, (3600), 2530 states have call successors, (3600) [2025-03-08 05:23:29,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16510 states to 16510 states and 27335 transitions. [2025-03-08 05:23:29,839 INFO L78 Accepts]: Start accepts. Automaton has 16510 states and 27335 transitions. Word has length 532 [2025-03-08 05:23:29,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:29,839 INFO L471 AbstractCegarLoop]: Abstraction has 16510 states and 27335 transitions. [2025-03-08 05:23:29,839 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.25) internal successors, (217), 4 states have internal predecessors, (217), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:23:29,839 INFO L276 IsEmpty]: Start isEmpty. Operand 16510 states and 27335 transitions. [2025-03-08 05:23:29,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2025-03-08 05:23:29,853 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:29,854 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 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, 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, 3, 3, 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] [2025-03-08 05:23:29,864 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-08 05:23:30,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-08 05:23:30,054 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:30,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:30,055 INFO L85 PathProgramCache]: Analyzing trace with hash -1953296887, now seen corresponding path program 1 times [2025-03-08 05:23:30,055 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:30,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115842377] [2025-03-08 05:23:30,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:30,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:30,091 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-03-08 05:23:30,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-03-08 05:23:30,100 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:30,100 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:30,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:30,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:30,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115842377] [2025-03-08 05:23:30,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115842377] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:30,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1370690440] [2025-03-08 05:23:30,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:30,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:30,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:30,625 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:30,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-08 05:23:30,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-03-08 05:23:31,103 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-03-08 05:23:31,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:31,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:31,115 INFO L256 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 05:23:31,121 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:31,346 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 757 proven. 270 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2025-03-08 05:23:31,347 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:23:31,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 133 proven. 36 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2025-03-08 05:23:31,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1370690440] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:23:31,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 05:23:31,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 5] total 16 [2025-03-08 05:23:31,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408382445] [2025-03-08 05:23:31,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 05:23:31,888 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-03-08 05:23:31,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:31,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-03-08 05:23:31,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:23:31,889 INFO L87 Difference]: Start difference. First operand 16510 states and 27335 transitions. Second operand has 16 states, 16 states have (on average 27.625) internal successors, (442), 14 states have internal predecessors, (442), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) [2025-03-08 05:23:44,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:44,391 INFO L93 Difference]: Finished difference Result 77482 states and 135161 transitions. [2025-03-08 05:23:44,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2025-03-08 05:23:44,391 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 27.625) internal successors, (442), 14 states have internal predecessors, (442), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) Word has length 532 [2025-03-08 05:23:44,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:44,773 INFO L225 Difference]: With dead ends: 77482 [2025-03-08 05:23:44,774 INFO L226 Difference]: Without dead ends: 60940 [2025-03-08 05:23:44,916 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1143 GetRequests, 1081 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1046 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=562, Invalid=3344, Unknown=0, NotChecked=0, Total=3906 [2025-03-08 05:23:44,917 INFO L435 NwaCegarLoop]: 1059 mSDtfsCounter, 10495 mSDsluCounter, 6435 mSDsCounter, 0 mSdLazyCounter, 26535 mSolverCounterSat, 4700 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10495 SdHoareTripleChecker+Valid, 7494 SdHoareTripleChecker+Invalid, 31235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4700 IncrementalHoareTripleChecker+Valid, 26535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:44,917 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [10495 Valid, 7494 Invalid, 31235 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4700 Valid, 26535 Invalid, 0 Unknown, 0 Unchecked, 9.0s Time] [2025-03-08 05:23:44,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60940 states. [2025-03-08 05:23:47,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60940 to 52198. [2025-03-08 05:23:47,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52198 states, 39553 states have (on average 1.6081207493742573) internal successors, (63606), 41734 states have internal predecessors, (63606), 9530 states have call successors, (9530), 2232 states have call predecessors, (9530), 3114 states have return successors, (14863), 9567 states have call predecessors, (14863), 9510 states have call successors, (14863) [2025-03-08 05:23:47,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52198 states to 52198 states and 87999 transitions. [2025-03-08 05:23:47,862 INFO L78 Accepts]: Start accepts. Automaton has 52198 states and 87999 transitions. Word has length 532 [2025-03-08 05:23:47,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:47,862 INFO L471 AbstractCegarLoop]: Abstraction has 52198 states and 87999 transitions. [2025-03-08 05:23:47,862 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 27.625) internal successors, (442), 14 states have internal predecessors, (442), 11 states have call successors, (106), 7 states have call predecessors, (106), 10 states have return successors, (106), 13 states have call predecessors, (106), 11 states have call successors, (106) [2025-03-08 05:23:47,862 INFO L276 IsEmpty]: Start isEmpty. Operand 52198 states and 87999 transitions. [2025-03-08 05:23:47,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2025-03-08 05:23:47,884 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:47,885 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:23:47,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-08 05:23:48,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-08 05:23:48,086 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:48,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:48,086 INFO L85 PathProgramCache]: Analyzing trace with hash -710761581, now seen corresponding path program 1 times [2025-03-08 05:23:48,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:48,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257009453] [2025-03-08 05:23:48,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:48,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:48,112 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 551 statements into 1 equivalence classes. [2025-03-08 05:23:48,120 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 551 of 551 statements. [2025-03-08 05:23:48,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:48,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 29 proven. 136 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-03-08 05:23:48,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257009453] [2025-03-08 05:23:48,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257009453] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:48,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265091209] [2025-03-08 05:23:48,687 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:48,687 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:48,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:48,690 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:48,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-08 05:23:48,892 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 551 statements into 1 equivalence classes. [2025-03-08 05:23:49,177 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 551 of 551 statements. [2025-03-08 05:23:49,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:49,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:49,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 4098 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:23:49,193 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 781 trivial. 0 not checked. [2025-03-08 05:23:49,213 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:49,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265091209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:49,213 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:49,213 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-03-08 05:23:49,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762244295] [2025-03-08 05:23:49,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:49,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:23:49,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:49,214 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:23:49,214 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:23:49,214 INFO L87 Difference]: Start difference. First operand 52198 states and 87999 transitions. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2025-03-08 05:23:55,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:55,101 INFO L93 Difference]: Finished difference Result 139674 states and 243257 transitions. [2025-03-08 05:23:55,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:23:55,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) Word has length 551 [2025-03-08 05:23:55,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:55,663 INFO L225 Difference]: With dead ends: 139674 [2025-03-08 05:23:55,663 INFO L226 Difference]: Without dead ends: 95936 [2025-03-08 05:23:55,928 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 565 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:23:55,929 INFO L435 NwaCegarLoop]: 1564 mSDtfsCounter, 810 mSDsluCounter, 843 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2407 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:55,929 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2407 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:55,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95936 states. [2025-03-08 05:24:00,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95936 to 95934. [2025-03-08 05:24:00,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95934 states, 72349 states have (on average 1.6047492017857883) internal successors, (116102), 76474 states have internal predecessors, (116102), 17898 states have call successors, (17898), 4060 states have call predecessors, (17898), 5686 states have return successors, (32763), 18071 states have call predecessors, (32763), 17862 states have call successors, (32763) [2025-03-08 05:24:01,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95934 states to 95934 states and 166763 transitions. [2025-03-08 05:24:01,665 INFO L78 Accepts]: Start accepts. Automaton has 95934 states and 166763 transitions. Word has length 551 [2025-03-08 05:24:01,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:24:01,666 INFO L471 AbstractCegarLoop]: Abstraction has 95934 states and 166763 transitions. [2025-03-08 05:24:01,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 2 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 2 states have call successors, (39) [2025-03-08 05:24:01,666 INFO L276 IsEmpty]: Start isEmpty. Operand 95934 states and 166763 transitions. [2025-03-08 05:24:01,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2025-03-08 05:24:01,694 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:24:01,694 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:24:01,705 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-08 05:24:01,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:24:01,895 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:24:01,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:24:01,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1054678591, now seen corresponding path program 1 times [2025-03-08 05:24:01,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:24:01,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395380976] [2025-03-08 05:24:01,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:24:01,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:24:01,925 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 552 statements into 1 equivalence classes. [2025-03-08 05:24:01,933 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 552 of 552 statements. [2025-03-08 05:24:01,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:24:01,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:24:02,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 29 proven. 136 refuted. 0 times theorem prover too weak. 1311 trivial. 0 not checked. [2025-03-08 05:24:02,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:24:02,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395380976] [2025-03-08 05:24:02,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395380976] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:24:02,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501657722] [2025-03-08 05:24:02,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:24:02,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:24:02,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:24:02,429 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:24:02,431 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-08 05:24:02,663 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 552 statements into 1 equivalence classes. [2025-03-08 05:24:02,950 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 552 of 552 statements. [2025-03-08 05:24:02,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:24:02,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:24:02,963 INFO L256 TraceCheckSpWp]: Trace formula consists of 4099 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-03-08 05:24:02,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:24:03,332 INFO L134 CoverageAnalysis]: Checked inductivity of 1476 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 766 trivial. 0 not checked. [2025-03-08 05:24:03,332 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:24:03,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501657722] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:24:03,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:24:03,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 16 [2025-03-08 05:24:03,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503808317] [2025-03-08 05:24:03,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:24:03,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:24:03,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:24:03,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:24:03,334 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:24:03,334 INFO L87 Difference]: Start difference. First operand 95934 states and 166763 transitions. Second operand has 9 states, 9 states have (on average 25.88888888888889) internal successors, (233), 8 states have internal predecessors, (233), 6 states have call successors, (42), 5 states have call predecessors, (42), 7 states have return successors, (41), 7 states have call predecessors, (41), 6 states have call successors, (41)