./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 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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-?-551b009-m [2025-01-09 03:41:12,147 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 03:41:12,208 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-01-09 03:41:12,215 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 03:41:12,215 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 03:41:12,240 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 03:41:12,241 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 03:41:12,241 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 03:41:12,242 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-01-09 03:41:12,242 INFO L153 SettingsManager]: * Use memory slicer=true [2025-01-09 03:41:12,242 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 03:41:12,243 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 03:41:12,243 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 03:41:12,243 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 03:41:12,243 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 03:41:12,243 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 03:41:12,243 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 03:41:12,244 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 03:41:12,245 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:41:12,245 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 03:41:12,245 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:41:12,246 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 03:41:12,246 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 03:41:12,246 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-jdk21/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 [2025-01-09 03:41:12,464 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 03:41:12,469 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 03:41:12,471 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 03:41:12,472 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 03:41:12,472 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 03:41:12,473 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2025-01-09 03:41:13,640 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effa8c909/6646aa61e16044e69f6bf87b6fb5cdd2/FLAG805ebd4e6 [2025-01-09 03:41:14,036 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 03:41:14,036 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c [2025-01-09 03:41:14,053 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effa8c909/6646aa61e16044e69f6bf87b6fb5cdd2/FLAG805ebd4e6 [2025-01-09 03:41:14,068 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/effa8c909/6646aa61e16044e69f6bf87b6fb5cdd2 [2025-01-09 03:41:14,070 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 03:41:14,072 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 03:41:14,073 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 03:41:14,073 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 03:41:14,076 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 03:41:14,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,077 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e35fb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14, skipping insertion in model container [2025-01-09 03:41:14,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,128 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 03:41:14,437 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2025-01-09 03:41:14,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:41:14,529 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 03:41:14,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [48] [2025-01-09 03:41:14,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [86] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [131] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [252] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1852] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [1870] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2220] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [2229] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2320] [2025-01-09 03:41:14,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2981] [2025-01-09 03:41:14,572 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product28.cil.c[43703,43716] [2025-01-09 03:41:14,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 03:41:14,613 INFO L204 MainTranslator]: Completed translation [2025-01-09 03:41:14,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14 WrapperNode [2025-01-09 03:41:14,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 03:41:14,615 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 03:41:14,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 03:41:14,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 03:41:14,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,645 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,692 INFO L138 Inliner]: procedures = 94, calls = 341, calls flagged for inlining = 28, calls inlined = 24, statements flattened = 1100 [2025-01-09 03:41:14,692 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 03:41:14,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 03:41:14,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 03:41:14,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 03:41:14,699 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,705 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,730 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]. [2025-01-09 03:41:14,730 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,731 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,745 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,747 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,761 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,769 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,776 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,790 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 03:41:14,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 03:41:14,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 03:41:14,791 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 03:41:14,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (1/1) ... [2025-01-09 03:41:14,795 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 03:41:14,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:14,818 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 03:41:14,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 03:41:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 03:41:14,842 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-01-09 03:41:14,842 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-01-09 03:41:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-01-09 03:41:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-01-09 03:41:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-01-09 03:41:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-01-09 03:41:14,843 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-01-09 03:41:14,843 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-01-09 03:41:14,844 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-01-09 03:41:14,844 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__empty [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__empty [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-01-09 03:41:14,845 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-01-09 03:41:14,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-01-09 03:41:14,846 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-01-09 03:41:14,846 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-01-09 03:41:15,000 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 03:41:15,002 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 03:41:16,001 INFO L? ?]: Removed 453 outVars from TransFormulas that were not future-live. [2025-01-09 03:41:16,001 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 03:41:16,026 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 03:41:16,030 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2025-01-09 03:41:16,030 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:41:16 BoogieIcfgContainer [2025-01-09 03:41:16,030 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 03:41:16,031 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 03:41:16,032 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 03:41:16,035 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 03:41:16,035 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 03:41:14" (1/3) ... [2025-01-09 03:41:16,035 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b0a265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:41:16, skipping insertion in model container [2025-01-09 03:41:16,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 03:41:14" (2/3) ... [2025-01-09 03:41:16,036 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b0a265 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 03:41:16, skipping insertion in model container [2025-01-09 03:41:16,036 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 03:41:16" (3/3) ... [2025-01-09 03:41:16,037 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product28.cil.c [2025-01-09 03:41:16,046 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 03:41:16,047 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product28.cil.c that has 26 procedures, 553 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-01-09 03:41:16,091 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 03:41:16,098 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;@5834db69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 03:41:16,098 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-01-09 03:41:16,102 INFO L276 IsEmpty]: Start isEmpty. Operand has 553 states, 429 states have (on average 1.6713286713286712) internal successors, (717), 447 states have internal predecessors, (717), 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) [2025-01-09 03:41:16,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-01-09 03:41:16,109 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:16,110 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] [2025-01-09 03:41:16,110 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:16,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:16,116 INFO L85 PathProgramCache]: Analyzing trace with hash -989451906, now seen corresponding path program 1 times [2025-01-09 03:41:16,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:16,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449419790] [2025-01-09 03:41:16,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:16,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:16,222 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-01-09 03:41:16,276 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-01-09 03:41:16,277 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:16,277 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:16,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:16,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449419790] [2025-01-09 03:41:16,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449419790] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:16,554 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:16,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:16,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151953468] [2025-01-09 03:41:16,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:16,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:16,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:16,575 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:16,576 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:16,578 INFO L87 Difference]: Start difference. First operand has 553 states, 429 states have (on average 1.6713286713286712) internal successors, (717), 447 states have internal predecessors, (717), 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) [2025-01-09 03:41:16,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:16,727 INFO L93 Difference]: Finished difference Result 1099 states and 1822 transitions. [2025-01-09 03:41:16,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:16,730 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 [2025-01-09 03:41:16,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:16,747 INFO L225 Difference]: With dead ends: 1099 [2025-01-09 03:41:16,749 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:41:16,759 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 [2025-01-09 03:41:16,762 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 6 mSDsluCounter, 1784 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2679 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 [2025-01-09 03:41:16,763 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2679 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:16,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:41:16,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:41:16,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 425 states have (on average 1.663529411764706) internal successors, (707), 442 states have internal predecessors, (707), 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) [2025-01-09 03:41:16,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 900 transitions. [2025-01-09 03:41:16,836 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 900 transitions. Word has length 63 [2025-01-09 03:41:16,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:16,837 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 900 transitions. [2025-01-09 03:41:16,837 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) [2025-01-09 03:41:16,837 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 900 transitions. [2025-01-09 03:41:16,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-01-09 03:41:16,842 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:16,842 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] [2025-01-09 03:41:16,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 03:41:16,843 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:16,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:16,843 INFO L85 PathProgramCache]: Analyzing trace with hash -830005051, now seen corresponding path program 1 times [2025-01-09 03:41:16,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:16,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624655875] [2025-01-09 03:41:16,843 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:16,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:16,864 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 03:41:16,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 03:41:16,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:16,881 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:17,013 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:17,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:17,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624655875] [2025-01-09 03:41:17,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624655875] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:17,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:17,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:17,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489784442] [2025-01-09 03:41:17,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:17,014 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:17,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:17,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:17,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:17,015 INFO L87 Difference]: Start difference. First operand 548 states and 900 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) [2025-01-09 03:41:17,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:17,075 INFO L93 Difference]: Finished difference Result 1079 states and 1777 transitions. [2025-01-09 03:41:17,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:41:17,076 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 [2025-01-09 03:41:17,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:17,080 INFO L225 Difference]: With dead ends: 1079 [2025-01-09 03:41:17,080 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:41:17,082 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 [2025-01-09 03:41:17,082 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 4 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2651 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 [2025-01-09 03:41:17,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2651 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:17,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:41:17,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:41:17,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 425 states have (on average 1.6611764705882353) internal successors, (706), 442 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) [2025-01-09 03:41:17,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 899 transitions. [2025-01-09 03:41:17,107 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 899 transitions. Word has length 64 [2025-01-09 03:41:17,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:17,107 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 899 transitions. [2025-01-09 03:41:17,108 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) [2025-01-09 03:41:17,108 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 899 transitions. [2025-01-09 03:41:17,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-01-09 03:41:17,109 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:17,109 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] [2025-01-09 03:41:17,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 03:41:17,109 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:17,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:17,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1400407078, now seen corresponding path program 1 times [2025-01-09 03:41:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:17,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867765761] [2025-01-09 03:41:17,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:17,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:17,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-01-09 03:41:17,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-01-09 03:41:17,139 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:17,139 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:17,246 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:17,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:17,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [867765761] [2025-01-09 03:41:17,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [867765761] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:17,247 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:17,247 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:17,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385928527] [2025-01-09 03:41:17,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:17,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:17,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:17,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:17,248 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:17,248 INFO L87 Difference]: Start difference. First operand 548 states and 899 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) [2025-01-09 03:41:17,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:17,312 INFO L93 Difference]: Finished difference Result 1079 states and 1776 transitions. [2025-01-09 03:41:17,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:41:17,312 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 [2025-01-09 03:41:17,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:17,318 INFO L225 Difference]: With dead ends: 1079 [2025-01-09 03:41:17,318 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:41:17,322 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 [2025-01-09 03:41:17,324 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 3 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2651 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 [2025-01-09 03:41:17,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2651 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:17,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:41:17,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:41:17,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 425 states have (on average 1.6588235294117648) internal successors, (705), 442 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) [2025-01-09 03:41:17,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 898 transitions. [2025-01-09 03:41:17,353 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 898 transitions. Word has length 65 [2025-01-09 03:41:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:17,353 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 898 transitions. [2025-01-09 03:41:17,353 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) [2025-01-09 03:41:17,354 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 898 transitions. [2025-01-09 03:41:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-01-09 03:41:17,355 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:17,355 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] [2025-01-09 03:41:17,355 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 03:41:17,355 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:17,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:17,356 INFO L85 PathProgramCache]: Analyzing trace with hash 1173679329, now seen corresponding path program 1 times [2025-01-09 03:41:17,356 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:17,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863758955] [2025-01-09 03:41:17,356 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:17,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:17,373 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-01-09 03:41:17,382 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-01-09 03:41:17,382 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:17,382 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:17,483 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:17,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:17,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863758955] [2025-01-09 03:41:17,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863758955] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:17,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:17,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:17,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653069815] [2025-01-09 03:41:17,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:17,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:17,484 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:17,484 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:17,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:17,484 INFO L87 Difference]: Start difference. First operand 548 states and 898 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) [2025-01-09 03:41:17,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:17,532 INFO L93 Difference]: Finished difference Result 1079 states and 1775 transitions. [2025-01-09 03:41:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:41:17,532 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 [2025-01-09 03:41:17,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:17,540 INFO L225 Difference]: With dead ends: 1079 [2025-01-09 03:41:17,540 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:41:17,542 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 [2025-01-09 03:41:17,543 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 2 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2651 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 [2025-01-09 03:41:17,545 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2651 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:17,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:41:17,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:41:17,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 425 states have (on average 1.6564705882352941) internal successors, (704), 442 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) [2025-01-09 03:41:17,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 897 transitions. [2025-01-09 03:41:17,571 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 897 transitions. Word has length 66 [2025-01-09 03:41:17,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:17,572 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 897 transitions. [2025-01-09 03:41:17,572 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) [2025-01-09 03:41:17,572 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 897 transitions. [2025-01-09 03:41:17,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-01-09 03:41:17,573 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:17,573 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] [2025-01-09 03:41:17,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 03:41:17,574 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:17,574 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:17,575 INFO L85 PathProgramCache]: Analyzing trace with hash -1852307914, now seen corresponding path program 1 times [2025-01-09 03:41:17,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:17,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052019267] [2025-01-09 03:41:17,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:17,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:17,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-01-09 03:41:17,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-01-09 03:41:17,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:17,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:17,689 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:17,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:17,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052019267] [2025-01-09 03:41:17,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052019267] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:17,689 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:17,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:17,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570142482] [2025-01-09 03:41:17,689 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:17,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:17,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:17,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:17,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:17,690 INFO L87 Difference]: Start difference. First operand 548 states and 897 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) [2025-01-09 03:41:17,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:17,732 INFO L93 Difference]: Finished difference Result 1079 states and 1774 transitions. [2025-01-09 03:41:17,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:41:17,732 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 [2025-01-09 03:41:17,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:17,737 INFO L225 Difference]: With dead ends: 1079 [2025-01-09 03:41:17,737 INFO L226 Difference]: Without dead ends: 548 [2025-01-09 03:41:17,739 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 [2025-01-09 03:41:17,740 INFO L435 NwaCegarLoop]: 886 mSDtfsCounter, 1 mSDsluCounter, 1765 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2651 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 [2025-01-09 03:41:17,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2651 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:17,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-01-09 03:41:17,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-01-09 03:41:17,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 425 states have (on average 1.6541176470588235) internal successors, (703), 442 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) [2025-01-09 03:41:17,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 896 transitions. [2025-01-09 03:41:17,765 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 896 transitions. Word has length 67 [2025-01-09 03:41:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:17,765 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 896 transitions. [2025-01-09 03:41:17,765 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) [2025-01-09 03:41:17,766 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 896 transitions. [2025-01-09 03:41:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-01-09 03:41:17,767 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:17,767 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] [2025-01-09 03:41:17,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 03:41:17,767 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:17,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:17,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1908048125, now seen corresponding path program 1 times [2025-01-09 03:41:17,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:17,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886078024] [2025-01-09 03:41:17,767 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:17,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:17,785 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-09 03:41:17,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-09 03:41:17,794 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:17,794 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:17,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:17,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:17,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886078024] [2025-01-09 03:41:17,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886078024] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:17,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:17,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:41:17,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10534016] [2025-01-09 03:41:17,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:17,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:41:17,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:17,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:41:17,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:41:17,927 INFO L87 Difference]: Start difference. First operand 548 states and 896 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) [2025-01-09 03:41:18,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:18,022 INFO L93 Difference]: Finished difference Result 1090 states and 1791 transitions. [2025-01-09 03:41:18,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:41:18,022 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 [2025-01-09 03:41:18,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:18,027 INFO L225 Difference]: With dead ends: 1090 [2025-01-09 03:41:18,028 INFO L226 Difference]: Without dead ends: 563 [2025-01-09 03:41:18,030 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 [2025-01-09 03:41:18,031 INFO L435 NwaCegarLoop]: 883 mSDtfsCounter, 91 mSDsluCounter, 4330 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:18,031 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5213 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:18,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states. [2025-01-09 03:41:18,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 561. [2025-01-09 03:41:18,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 435 states have (on average 1.650574712643678) internal successors, (718), 454 states have internal predecessors, (718), 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) [2025-01-09 03:41:18,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 916 transitions. [2025-01-09 03:41:18,055 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 916 transitions. Word has length 68 [2025-01-09 03:41:18,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:18,055 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 916 transitions. [2025-01-09 03:41:18,056 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) [2025-01-09 03:41:18,056 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 916 transitions. [2025-01-09 03:41:18,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-01-09 03:41:18,056 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:18,056 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] [2025-01-09 03:41:18,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-01-09 03:41:18,057 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:18,057 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:18,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1617749156, now seen corresponding path program 1 times [2025-01-09 03:41:18,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:18,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227022058] [2025-01-09 03:41:18,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:18,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:18,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-01-09 03:41:18,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-01-09 03:41:18,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:18,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:18,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:18,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:18,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227022058] [2025-01-09 03:41:18,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227022058] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:18,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:18,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:18,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848220055] [2025-01-09 03:41:18,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:18,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:18,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:18,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:18,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:18,143 INFO L87 Difference]: Start difference. First operand 561 states and 916 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) [2025-01-09 03:41:18,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:18,192 INFO L93 Difference]: Finished difference Result 1097 states and 1802 transitions. [2025-01-09 03:41:18,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:18,192 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 [2025-01-09 03:41:18,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:18,197 INFO L225 Difference]: With dead ends: 1097 [2025-01-09 03:41:18,197 INFO L226 Difference]: Without dead ends: 557 [2025-01-09 03:41:18,199 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 [2025-01-09 03:41:18,200 INFO L435 NwaCegarLoop]: 884 mSDtfsCounter, 1 mSDsluCounter, 1762 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2646 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 [2025-01-09 03:41:18,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2646 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:18,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-01-09 03:41:18,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 557. [2025-01-09 03:41:18,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 433 states have (on average 1.651270207852194) internal successors, (715), 451 states have internal predecessors, (715), 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) [2025-01-09 03:41:18,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 909 transitions. [2025-01-09 03:41:18,220 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 909 transitions. Word has length 68 [2025-01-09 03:41:18,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:18,220 INFO L471 AbstractCegarLoop]: Abstraction has 557 states and 909 transitions. [2025-01-09 03:41:18,221 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) [2025-01-09 03:41:18,221 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 909 transitions. [2025-01-09 03:41:18,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-01-09 03:41:18,222 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:18,222 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] [2025-01-09 03:41:18,222 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-01-09 03:41:18,222 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:18,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:18,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1788923744, now seen corresponding path program 1 times [2025-01-09 03:41:18,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:18,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058346583] [2025-01-09 03:41:18,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:18,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:18,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 03:41:18,246 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 03:41:18,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:18,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:18,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:18,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:18,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058346583] [2025-01-09 03:41:18,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058346583] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:18,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:18,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:41:18,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207425216] [2025-01-09 03:41:18,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:18,331 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:18,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:18,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:18,332 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:41:18,332 INFO L87 Difference]: Start difference. First operand 557 states and 909 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) [2025-01-09 03:41:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:18,526 INFO L93 Difference]: Finished difference Result 1140 states and 1874 transitions. [2025-01-09 03:41:18,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:41:18,527 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 [2025-01-09 03:41:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:18,531 INFO L225 Difference]: With dead ends: 1140 [2025-01-09 03:41:18,531 INFO L226 Difference]: Without dead ends: 589 [2025-01-09 03:41:18,533 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 [2025-01-09 03:41:18,533 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 72 mSDsluCounter, 3353 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4211 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 [2025-01-09 03:41:18,534 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4211 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-01-09 03:41:18,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2025-01-09 03:41:18,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 562. [2025-01-09 03:41:18,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 438 states have (on average 1.6369863013698631) internal successors, (717), 455 states have internal predecessors, (717), 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) [2025-01-09 03:41:18,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 910 transitions. [2025-01-09 03:41:18,550 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 910 transitions. Word has length 69 [2025-01-09 03:41:18,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:18,550 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 910 transitions. [2025-01-09 03:41:18,550 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) [2025-01-09 03:41:18,550 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 910 transitions. [2025-01-09 03:41:18,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-01-09 03:41:18,551 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:18,551 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] [2025-01-09 03:41:18,551 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-01-09 03:41:18,552 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:18,552 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:18,552 INFO L85 PathProgramCache]: Analyzing trace with hash -110164672, now seen corresponding path program 1 times [2025-01-09 03:41:18,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:18,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277447190] [2025-01-09 03:41:18,552 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:18,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:18,562 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-01-09 03:41:18,569 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-01-09 03:41:18,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:18,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:18,657 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:18,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:18,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277447190] [2025-01-09 03:41:18,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277447190] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:18,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:18,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:41:18,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2122534481] [2025-01-09 03:41:18,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:18,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:18,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:18,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:18,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:41:18,659 INFO L87 Difference]: Start difference. First operand 562 states and 910 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) [2025-01-09 03:41:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:18,827 INFO L93 Difference]: Finished difference Result 1091 states and 1769 transitions. [2025-01-09 03:41:18,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:18,828 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 [2025-01-09 03:41:18,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:18,832 INFO L225 Difference]: With dead ends: 1091 [2025-01-09 03:41:18,832 INFO L226 Difference]: Without dead ends: 580 [2025-01-09 03:41:18,834 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 [2025-01-09 03:41:18,835 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 56 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4188 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 [2025-01-09 03:41:18,835 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4188 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:18,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-01-09 03:41:18,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2025-01-09 03:41:18,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 438 states have (on average 1.6278538812785388) internal successors, (713), 455 states have internal predecessors, (713), 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) [2025-01-09 03:41:18,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 906 transitions. [2025-01-09 03:41:18,855 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 906 transitions. Word has length 70 [2025-01-09 03:41:18,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:18,856 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 906 transitions. [2025-01-09 03:41:18,857 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) [2025-01-09 03:41:18,857 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 906 transitions. [2025-01-09 03:41:18,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-09 03:41:18,859 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:18,859 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] [2025-01-09 03:41:18,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-01-09 03:41:18,859 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:18,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:18,859 INFO L85 PathProgramCache]: Analyzing trace with hash 1233868773, now seen corresponding path program 1 times [2025-01-09 03:41:18,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:18,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036781418] [2025-01-09 03:41:18,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:18,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:18,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-09 03:41:18,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-09 03:41:18,883 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:18,883 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:18,964 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:18,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:18,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036781418] [2025-01-09 03:41:18,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036781418] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:18,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:18,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:41:18,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388336672] [2025-01-09 03:41:18,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:18,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:18,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:18,966 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:18,966 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:41:18,966 INFO L87 Difference]: Start difference. First operand 562 states and 906 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) [2025-01-09 03:41:19,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:19,125 INFO L93 Difference]: Finished difference Result 1091 states and 1765 transitions. [2025-01-09 03:41:19,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:19,126 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 [2025-01-09 03:41:19,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:19,129 INFO L225 Difference]: With dead ends: 1091 [2025-01-09 03:41:19,129 INFO L226 Difference]: Without dead ends: 580 [2025-01-09 03:41:19,131 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 [2025-01-09 03:41:19,132 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 55 mSDsluCounter, 3337 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4183 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 [2025-01-09 03:41:19,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4183 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:19,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-01-09 03:41:19,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 562. [2025-01-09 03:41:19,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 438 states have (on average 1.6187214611872147) internal successors, (709), 455 states have internal predecessors, (709), 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) [2025-01-09 03:41:19,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 902 transitions. [2025-01-09 03:41:19,148 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 902 transitions. Word has length 71 [2025-01-09 03:41:19,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:19,148 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 902 transitions. [2025-01-09 03:41:19,148 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) [2025-01-09 03:41:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 902 transitions. [2025-01-09 03:41:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-01-09 03:41:19,149 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:19,149 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] [2025-01-09 03:41:19,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-01-09 03:41:19,149 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:19,149 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:19,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1056085093, now seen corresponding path program 1 times [2025-01-09 03:41:19,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:19,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523041044] [2025-01-09 03:41:19,149 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:19,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:19,162 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-01-09 03:41:19,168 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-01-09 03:41:19,168 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:19,168 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:19,277 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:19,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:19,278 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523041044] [2025-01-09 03:41:19,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523041044] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:19,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:19,278 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-01-09 03:41:19,278 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464756331] [2025-01-09 03:41:19,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:19,278 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:41:19,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:19,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:41:19,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-01-09 03:41:19,279 INFO L87 Difference]: Start difference. First operand 562 states and 902 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) [2025-01-09 03:41:19,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:19,346 INFO L93 Difference]: Finished difference Result 1082 states and 1747 transitions. [2025-01-09 03:41:19,347 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-01-09 03:41:19,347 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 [2025-01-09 03:41:19,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:19,350 INFO L225 Difference]: With dead ends: 1082 [2025-01-09 03:41:19,350 INFO L226 Difference]: Without dead ends: 550 [2025-01-09 03:41:19,352 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 [2025-01-09 03:41:19,353 INFO L435 NwaCegarLoop]: 872 mSDtfsCounter, 94 mSDsluCounter, 4264 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5136 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 [2025-01-09 03:41:19,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5136 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:19,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-01-09 03:41:19,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 541. [2025-01-09 03:41:19,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 417 states have (on average 1.6115107913669064) internal successors, (672), 434 states have internal predecessors, (672), 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) [2025-01-09 03:41:19,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 865 transitions. [2025-01-09 03:41:19,368 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 865 transitions. Word has length 71 [2025-01-09 03:41:19,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:19,368 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 865 transitions. [2025-01-09 03:41:19,368 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) [2025-01-09 03:41:19,368 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 865 transitions. [2025-01-09 03:41:19,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-01-09 03:41:19,369 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:19,369 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] [2025-01-09 03:41:19,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-01-09 03:41:19,369 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:19,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:19,369 INFO L85 PathProgramCache]: Analyzing trace with hash 35464805, now seen corresponding path program 1 times [2025-01-09 03:41:19,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:19,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999870895] [2025-01-09 03:41:19,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:19,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:19,379 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-01-09 03:41:19,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-01-09 03:41:19,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:19,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:19,456 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:19,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:19,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999870895] [2025-01-09 03:41:19,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999870895] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:19,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:19,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:41:19,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798451453] [2025-01-09 03:41:19,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:19,456 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:19,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:19,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:19,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:41:19,457 INFO L87 Difference]: Start difference. First operand 541 states and 865 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) [2025-01-09 03:41:19,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:19,542 INFO L93 Difference]: Finished difference Result 1061 states and 1710 transitions. [2025-01-09 03:41:19,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:19,542 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 [2025-01-09 03:41:19,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:19,546 INFO L225 Difference]: With dead ends: 1061 [2025-01-09 03:41:19,546 INFO L226 Difference]: Without dead ends: 550 [2025-01-09 03:41:19,548 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 [2025-01-09 03:41:19,549 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 39 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4188 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 [2025-01-09 03:41:19,549 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4188 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:19,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-01-09 03:41:19,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 541. [2025-01-09 03:41:19,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 417 states have (on average 1.6091127098321343) internal successors, (671), 434 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) [2025-01-09 03:41:19,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 864 transitions. [2025-01-09 03:41:19,563 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 864 transitions. Word has length 72 [2025-01-09 03:41:19,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:19,563 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 864 transitions. [2025-01-09 03:41:19,563 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) [2025-01-09 03:41:19,563 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 864 transitions. [2025-01-09 03:41:19,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-01-09 03:41:19,564 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:19,564 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] [2025-01-09 03:41:19,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-01-09 03:41:19,564 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:19,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:19,565 INFO L85 PathProgramCache]: Analyzing trace with hash 1625879658, now seen corresponding path program 1 times [2025-01-09 03:41:19,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:19,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911836744] [2025-01-09 03:41:19,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:19,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:19,575 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-01-09 03:41:19,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-01-09 03:41:19,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:19,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:19,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:19,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:19,659 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911836744] [2025-01-09 03:41:19,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911836744] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:19,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:19,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-01-09 03:41:19,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563913931] [2025-01-09 03:41:19,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:19,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:19,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:19,660 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:19,660 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-01-09 03:41:19,660 INFO L87 Difference]: Start difference. First operand 541 states and 864 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) [2025-01-09 03:41:19,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:19,736 INFO L93 Difference]: Finished difference Result 1061 states and 1709 transitions. [2025-01-09 03:41:19,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:19,737 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 [2025-01-09 03:41:19,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:19,740 INFO L225 Difference]: With dead ends: 1061 [2025-01-09 03:41:19,740 INFO L226 Difference]: Without dead ends: 550 [2025-01-09 03:41:19,742 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 [2025-01-09 03:41:19,743 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 38 mSDsluCounter, 3341 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4188 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:19,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4188 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:19,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2025-01-09 03:41:19,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 541. [2025-01-09 03:41:19,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 541 states, 417 states have (on average 1.6067146282973621) internal successors, (670), 434 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) [2025-01-09 03:41:19,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 863 transitions. [2025-01-09 03:41:19,757 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 863 transitions. Word has length 73 [2025-01-09 03:41:19,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:19,757 INFO L471 AbstractCegarLoop]: Abstraction has 541 states and 863 transitions. [2025-01-09 03:41:19,758 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) [2025-01-09 03:41:19,758 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 863 transitions. [2025-01-09 03:41:19,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-01-09 03:41:19,758 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:19,758 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] [2025-01-09 03:41:19,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-01-09 03:41:19,758 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:19,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:19,759 INFO L85 PathProgramCache]: Analyzing trace with hash -524635254, now seen corresponding path program 1 times [2025-01-09 03:41:19,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:19,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983329554] [2025-01-09 03:41:19,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:19,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:19,768 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-01-09 03:41:19,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-01-09 03:41:19,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:19,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:19,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:19,819 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:19,819 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983329554] [2025-01-09 03:41:19,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983329554] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:19,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:19,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-01-09 03:41:19,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001796405] [2025-01-09 03:41:19,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:19,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:19,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:19,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:19,820 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-01-09 03:41:19,820 INFO L87 Difference]: Start difference. First operand 541 states and 863 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) [2025-01-09 03:41:19,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:19,860 INFO L93 Difference]: Finished difference Result 1048 states and 1688 transitions. [2025-01-09 03:41:19,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-01-09 03:41:19,861 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 [2025-01-09 03:41:19,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:19,864 INFO L225 Difference]: With dead ends: 1048 [2025-01-09 03:41:19,865 INFO L226 Difference]: Without dead ends: 543 [2025-01-09 03:41:19,866 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 [2025-01-09 03:41:19,867 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 16 mSDsluCounter, 1636 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2462 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 [2025-01-09 03:41:19,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2462 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:19,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543 states. [2025-01-09 03:41:19,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543 to 543. [2025-01-09 03:41:19,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 543 states, 419 states have (on average 1.6014319809069213) internal successors, (671), 436 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) [2025-01-09 03:41:19,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 864 transitions. [2025-01-09 03:41:19,882 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 864 transitions. Word has length 74 [2025-01-09 03:41:19,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:19,882 INFO L471 AbstractCegarLoop]: Abstraction has 543 states and 864 transitions. [2025-01-09 03:41:19,882 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) [2025-01-09 03:41:19,882 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 864 transitions. [2025-01-09 03:41:19,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-01-09 03:41:19,883 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:19,883 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] [2025-01-09 03:41:19,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-01-09 03:41:19,883 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:19,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:19,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1488038465, now seen corresponding path program 1 times [2025-01-09 03:41:19,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:19,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969868413] [2025-01-09 03:41:19,883 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:19,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:19,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-01-09 03:41:19,899 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-01-09 03:41:19,899 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:19,899 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:20,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-01-09 03:41:20,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:20,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969868413] [2025-01-09 03:41:20,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969868413] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:20,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:20,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 03:41:20,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319373253] [2025-01-09 03:41:20,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:20,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:41:20,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:20,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:41:20,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 03:41:20,012 INFO L87 Difference]: Start difference. First operand 543 states and 864 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) [2025-01-09 03:41:20,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:20,134 INFO L93 Difference]: Finished difference Result 1530 states and 2486 transitions. [2025-01-09 03:41:20,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:41:20,134 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 [2025-01-09 03:41:20,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:20,142 INFO L225 Difference]: With dead ends: 1530 [2025-01-09 03:41:20,142 INFO L226 Difference]: Without dead ends: 1030 [2025-01-09 03:41:20,145 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 [2025-01-09 03:41:20,146 INFO L435 NwaCegarLoop]: 939 mSDtfsCounter, 797 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 797 SdHoareTripleChecker+Valid, 1738 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 [2025-01-09 03:41:20,146 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [797 Valid, 1738 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:20,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1030 states. [2025-01-09 03:41:20,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1030 to 967. [2025-01-09 03:41:20,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 751 states have (on average 1.621837549933422) internal successors, (1218), 777 states have internal predecessors, (1218), 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) [2025-01-09 03:41:20,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1563 transitions. [2025-01-09 03:41:20,193 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1563 transitions. Word has length 75 [2025-01-09 03:41:20,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:20,194 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1563 transitions. [2025-01-09 03:41:20,194 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) [2025-01-09 03:41:20,194 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1563 transitions. [2025-01-09 03:41:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-01-09 03:41:20,197 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:20,197 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] [2025-01-09 03:41:20,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-01-09 03:41:20,198 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:20,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:20,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1423661632, now seen corresponding path program 1 times [2025-01-09 03:41:20,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:20,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289663794] [2025-01-09 03:41:20,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:20,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:20,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:41:20,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:41:20,227 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:20,227 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:20,473 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:41:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289663794] [2025-01-09 03:41:20,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289663794] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847853377] [2025-01-09 03:41:20,474 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:20,474 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:20,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:20,477 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:20,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-01-09 03:41:20,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-01-09 03:41:20,740 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-01-09 03:41:20,740 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:20,740 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:20,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:20,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:20,783 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-01-09 03:41:20,783 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:20,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847853377] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:20,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:20,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2025-01-09 03:41:20,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309619497] [2025-01-09 03:41:20,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:20,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:41:20,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:20,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:41:20,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:20,784 INFO L87 Difference]: Start difference. First operand 967 states and 1563 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-01-09 03:41:20,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:20,872 INFO L93 Difference]: Finished difference Result 2803 states and 4637 transitions. [2025-01-09 03:41:20,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:41:20,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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 127 [2025-01-09 03:41:20,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:20,886 INFO L225 Difference]: With dead ends: 2803 [2025-01-09 03:41:20,886 INFO L226 Difference]: Without dead ends: 1880 [2025-01-09 03:41:20,892 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:20,893 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 845 mSDsluCounter, 799 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 1657 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 [2025-01-09 03:41:20,893 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [845 Valid, 1657 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:20,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1880 states. [2025-01-09 03:41:20,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1880 to 1868. [2025-01-09 03:41:20,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1868 states, 1453 states have (on average 1.6331727460426704) internal successors, (2373), 1502 states have internal predecessors, (2373), 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) [2025-01-09 03:41:20,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1868 states to 1868 states and 3066 transitions. [2025-01-09 03:41:20,978 INFO L78 Accepts]: Start accepts. Automaton has 1868 states and 3066 transitions. Word has length 127 [2025-01-09 03:41:20,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:20,978 INFO L471 AbstractCegarLoop]: Abstraction has 1868 states and 3066 transitions. [2025-01-09 03:41:20,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 3 states have internal predecessors, (88), 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) [2025-01-09 03:41:20,979 INFO L276 IsEmpty]: Start isEmpty. Operand 1868 states and 3066 transitions. [2025-01-09 03:41:20,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-01-09 03:41:20,982 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:20,982 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] [2025-01-09 03:41:20,991 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:21,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-01-09 03:41:21,183 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:21,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash 868272307, now seen corresponding path program 1 times [2025-01-09 03:41:21,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:21,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590741242] [2025-01-09 03:41:21,184 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:21,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:21,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:41:21,211 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:41:21,211 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:21,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:21,320 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:41:21,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590741242] [2025-01-09 03:41:21,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590741242] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:21,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [442790198] [2025-01-09 03:41:21,321 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:21,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:21,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:21,323 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:21,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-01-09 03:41:21,443 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-01-09 03:41:21,580 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-01-09 03:41:21,580 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:21,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:21,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:41:21,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:21,707 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-01-09 03:41:21,709 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:21,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [442790198] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:21,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:21,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:41:21,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396094481] [2025-01-09 03:41:21,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:21,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:41:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:21,710 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:41:21,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:41:21,711 INFO L87 Difference]: Start difference. First operand 1868 states and 3066 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) [2025-01-09 03:41:22,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:22,263 INFO L93 Difference]: Finished difference Result 3725 states and 6265 transitions. [2025-01-09 03:41:22,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:22,264 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 [2025-01-09 03:41:22,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:22,277 INFO L225 Difference]: With dead ends: 3725 [2025-01-09 03:41:22,277 INFO L226 Difference]: Without dead ends: 1900 [2025-01-09 03:41:22,287 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 [2025-01-09 03:41:22,288 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 800 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 804 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 445 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:22,288 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [804 Valid, 2095 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:41:22,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1900 states. [2025-01-09 03:41:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1900 to 1900. [2025-01-09 03:41:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1900 states, 1481 states have (on average 1.6347062795408507) internal successors, (2421), 1530 states have internal predecessors, (2421), 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) [2025-01-09 03:41:22,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1900 states to 1900 states and 3118 transitions. [2025-01-09 03:41:22,412 INFO L78 Accepts]: Start accepts. Automaton has 1900 states and 3118 transitions. Word has length 128 [2025-01-09 03:41:22,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:22,412 INFO L471 AbstractCegarLoop]: Abstraction has 1900 states and 3118 transitions. [2025-01-09 03:41:22,413 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) [2025-01-09 03:41:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 1900 states and 3118 transitions. [2025-01-09 03:41:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-01-09 03:41:22,416 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:22,416 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] [2025-01-09 03:41:22,425 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:22,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-01-09 03:41:22,620 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:22,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:22,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1249129025, now seen corresponding path program 1 times [2025-01-09 03:41:22,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:22,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1886628077] [2025-01-09 03:41:22,620 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:22,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:22,634 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:41:22,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:41:22,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:22,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:22,718 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-01-09 03:41:22,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:22,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1886628077] [2025-01-09 03:41:22,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1886628077] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:22,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54008875] [2025-01-09 03:41:22,719 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:22,719 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:22,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:22,721 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:22,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-01-09 03:41:22,831 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-01-09 03:41:22,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-01-09 03:41:22,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:22,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:22,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:41:22,960 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:23,064 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-01-09 03:41:23,066 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:23,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54008875] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:23,066 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:23,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:41:23,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216253161] [2025-01-09 03:41:23,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:23,067 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:41:23,067 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:23,068 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:41:23,068 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:41:23,068 INFO L87 Difference]: Start difference. First operand 1900 states and 3118 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) [2025-01-09 03:41:23,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:23,602 INFO L93 Difference]: Finished difference Result 3789 states and 6357 transitions. [2025-01-09 03:41:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:23,603 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 [2025-01-09 03:41:23,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:23,618 INFO L225 Difference]: With dead ends: 3789 [2025-01-09 03:41:23,618 INFO L226 Difference]: Without dead ends: 1932 [2025-01-09 03:41:23,630 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 [2025-01-09 03:41:23,631 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 794 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 2092 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 [2025-01-09 03:41:23,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 2092 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:41:23,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1932 states. [2025-01-09 03:41:23,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1932 to 1932. [2025-01-09 03:41:23,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1932 states, 1509 states have (on average 1.636182902584493) internal successors, (2469), 1558 states have internal predecessors, (2469), 327 states have call successors, (327), 97 states have call predecessors, (327), 95 states have return successors, (374), 306 states have call predecessors, (374), 323 states have call successors, (374) [2025-01-09 03:41:23,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1932 states to 1932 states and 3170 transitions. [2025-01-09 03:41:23,729 INFO L78 Accepts]: Start accepts. Automaton has 1932 states and 3170 transitions. Word has length 131 [2025-01-09 03:41:23,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:23,730 INFO L471 AbstractCegarLoop]: Abstraction has 1932 states and 3170 transitions. [2025-01-09 03:41:23,730 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) [2025-01-09 03:41:23,730 INFO L276 IsEmpty]: Start isEmpty. Operand 1932 states and 3170 transitions. [2025-01-09 03:41:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-01-09 03:41:23,733 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:23,733 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] [2025-01-09 03:41:23,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:23,934 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:23,934 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:23,935 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:23,935 INFO L85 PathProgramCache]: Analyzing trace with hash -1334605521, now seen corresponding path program 1 times [2025-01-09 03:41:23,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:23,935 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995802752] [2025-01-09 03:41:23,936 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:23,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:23,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:41:23,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:41:23,958 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:23,958 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:24,040 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-01-09 03:41:24,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:24,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995802752] [2025-01-09 03:41:24,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995802752] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:24,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648609716] [2025-01-09 03:41:24,042 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:24,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:24,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:24,044 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:24,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-01-09 03:41:24,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-01-09 03:41:24,279 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-01-09 03:41:24,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:24,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:24,284 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:41:24,287 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-01-09 03:41:24,386 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:24,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648609716] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:24,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:24,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:41:24,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070060241] [2025-01-09 03:41:24,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:24,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:41:24,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:24,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:41:24,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:41:24,387 INFO L87 Difference]: Start difference. First operand 1932 states and 3170 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) [2025-01-09 03:41:24,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:24,887 INFO L93 Difference]: Finished difference Result 3853 states and 6449 transitions. [2025-01-09 03:41:24,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:24,887 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 [2025-01-09 03:41:24,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:24,899 INFO L225 Difference]: With dead ends: 3853 [2025-01-09 03:41:24,899 INFO L226 Difference]: Without dead ends: 1964 [2025-01-09 03:41:24,908 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 [2025-01-09 03:41:24,908 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 786 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 2089 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 [2025-01-09 03:41:24,908 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 2089 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:41:24,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2025-01-09 03:41:24,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1964. [2025-01-09 03:41:24,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1964 states, 1537 states have (on average 1.6376057254391672) internal successors, (2517), 1586 states have internal predecessors, (2517), 327 states have call successors, (327), 101 states have call predecessors, (327), 99 states have return successors, (378), 306 states have call predecessors, (378), 323 states have call successors, (378) [2025-01-09 03:41:24,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1964 states to 1964 states and 3222 transitions. [2025-01-09 03:41:24,976 INFO L78 Accepts]: Start accepts. Automaton has 1964 states and 3222 transitions. Word has length 134 [2025-01-09 03:41:24,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:24,976 INFO L471 AbstractCegarLoop]: Abstraction has 1964 states and 3222 transitions. [2025-01-09 03:41:24,976 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) [2025-01-09 03:41:24,976 INFO L276 IsEmpty]: Start isEmpty. Operand 1964 states and 3222 transitions. [2025-01-09 03:41:24,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-01-09 03:41:24,979 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:24,979 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] [2025-01-09 03:41:24,987 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-01-09 03:41:25,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:25,180 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:25,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:25,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1716127693, now seen corresponding path program 1 times [2025-01-09 03:41:25,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:25,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078046838] [2025-01-09 03:41:25,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:25,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:25,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:41:25,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:41:25,205 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:25,205 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:25,282 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-01-09 03:41:25,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:25,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078046838] [2025-01-09 03:41:25,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078046838] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:25,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140433100] [2025-01-09 03:41:25,283 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:25,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:25,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:25,285 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:25,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-01-09 03:41:25,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-01-09 03:41:25,510 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-01-09 03:41:25,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:25,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:25,515 INFO L256 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-01-09 03:41:25,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:25,630 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-01-09 03:41:25,630 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:25,630 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140433100] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:25,630 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:25,630 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-01-09 03:41:25,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251385033] [2025-01-09 03:41:25,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:25,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-01-09 03:41:25,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:25,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-01-09 03:41:25,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-01-09 03:41:25,631 INFO L87 Difference]: Start difference. First operand 1964 states and 3222 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) [2025-01-09 03:41:26,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:26,071 INFO L93 Difference]: Finished difference Result 3917 states and 6541 transitions. [2025-01-09 03:41:26,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:26,072 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 [2025-01-09 03:41:26,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:26,084 INFO L225 Difference]: With dead ends: 3917 [2025-01-09 03:41:26,084 INFO L226 Difference]: Without dead ends: 1996 [2025-01-09 03:41:26,092 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 [2025-01-09 03:41:26,092 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 766 mSDsluCounter, 1270 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2086 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 [2025-01-09 03:41:26,092 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2086 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-01-09 03:41:26,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1996 states. [2025-01-09 03:41:26,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1996 to 1996. [2025-01-09 03:41:26,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1996 states, 1565 states have (on average 1.6389776357827477) internal successors, (2565), 1614 states have internal predecessors, (2565), 327 states have call successors, (327), 105 states have call predecessors, (327), 103 states have return successors, (382), 306 states have call predecessors, (382), 323 states have call successors, (382) [2025-01-09 03:41:26,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1996 states to 1996 states and 3274 transitions. [2025-01-09 03:41:26,158 INFO L78 Accepts]: Start accepts. Automaton has 1996 states and 3274 transitions. Word has length 137 [2025-01-09 03:41:26,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:26,159 INFO L471 AbstractCegarLoop]: Abstraction has 1996 states and 3274 transitions. [2025-01-09 03:41:26,160 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) [2025-01-09 03:41:26,160 INFO L276 IsEmpty]: Start isEmpty. Operand 1996 states and 3274 transitions. [2025-01-09 03:41:26,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-01-09 03:41:26,163 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:26,163 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] [2025-01-09 03:41:26,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:26,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:26,364 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:26,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:26,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1069320070, now seen corresponding path program 1 times [2025-01-09 03:41:26,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:26,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673442773] [2025-01-09 03:41:26,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:26,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:26,377 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:41:26,383 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:41:26,384 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:26,384 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:26,574 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-01-09 03:41:26,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:26,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673442773] [2025-01-09 03:41:26,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673442773] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:26,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896379022] [2025-01-09 03:41:26,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:26,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:26,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:26,577 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:26,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-01-09 03:41:26,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-01-09 03:41:26,802 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-01-09 03:41:26,802 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:26,802 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:26,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:41:26,811 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-01-09 03:41:26,903 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:26,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896379022] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:26,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:26,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2025-01-09 03:41:26,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908851846] [2025-01-09 03:41:26,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:26,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:26,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:26,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:26,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:41:26,904 INFO L87 Difference]: Start difference. First operand 1996 states and 3274 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2025-01-09 03:41:27,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:27,276 INFO L93 Difference]: Finished difference Result 5117 states and 8428 transitions. [2025-01-09 03:41:27,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:27,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 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 139 [2025-01-09 03:41:27,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:27,293 INFO L225 Difference]: With dead ends: 5117 [2025-01-09 03:41:27,294 INFO L226 Difference]: Without dead ends: 3164 [2025-01-09 03:41:27,300 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-01-09 03:41:27,301 INFO L435 NwaCegarLoop]: 1129 mSDtfsCounter, 799 mSDsluCounter, 3304 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 801 SdHoareTripleChecker+Valid, 4433 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 [2025-01-09 03:41:27,302 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [801 Valid, 4433 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-01-09 03:41:27,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2025-01-09 03:41:27,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3162. [2025-01-09 03:41:27,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 2481 states have (on average 1.6102378073357517) internal successors, (3995), 2534 states have internal predecessors, (3995), 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) [2025-01-09 03:41:27,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 5160 transitions. [2025-01-09 03:41:27,428 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 5160 transitions. Word has length 139 [2025-01-09 03:41:27,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:27,428 INFO L471 AbstractCegarLoop]: Abstraction has 3162 states and 5160 transitions. [2025-01-09 03:41:27,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 4 states have internal predecessors, (84), 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) [2025-01-09 03:41:27,429 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 5160 transitions. [2025-01-09 03:41:27,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:41:27,432 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:27,432 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] [2025-01-09 03:41:27,441 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:27,633 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2025-01-09 03:41:27,633 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:27,634 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:27,634 INFO L85 PathProgramCache]: Analyzing trace with hash 70192105, now seen corresponding path program 1 times [2025-01-09 03:41:27,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:27,634 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236644681] [2025-01-09 03:41:27,634 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:27,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:27,646 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:41:27,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:41:27,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:27,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:41:27,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:27,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236644681] [2025-01-09 03:41:27,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236644681] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:27,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [861417113] [2025-01-09 03:41:27,868 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:27,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:27,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:27,869 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:27,871 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-01-09 03:41:28,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:41:28,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:41:28,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:28,127 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:28,131 INFO L256 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:41:28,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:28,275 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 03:41:28,275 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:28,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [861417113] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:28,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:28,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-01-09 03:41:28,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440862259] [2025-01-09 03:41:28,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:28,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:28,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:28,276 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:28,276 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:41:28,276 INFO L87 Difference]: Start difference. First operand 3162 states and 5160 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) [2025-01-09 03:41:29,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:29,825 INFO L93 Difference]: Finished difference Result 6537 states and 10685 transitions. [2025-01-09 03:41:29,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:29,828 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 [2025-01-09 03:41:29,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:29,848 INFO L225 Difference]: With dead ends: 6537 [2025-01-09 03:41:29,848 INFO L226 Difference]: Without dead ends: 3423 [2025-01-09 03:41:29,857 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 [2025-01-09 03:41:29,858 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 1438 mSDsluCounter, 698 mSDsCounter, 0 mSdLazyCounter, 2229 mSolverCounterSat, 358 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 2587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 358 IncrementalHoareTripleChecker+Valid, 2229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:29,858 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 1104 Invalid, 2587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [358 Valid, 2229 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2025-01-09 03:41:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3423 states. [2025-01-09 03:41:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3423 to 3161. [2025-01-09 03:41:29,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3161 states, 2375 states have (on average 1.5701052631578947) internal successors, (3729), 2466 states have internal predecessors, (3729), 606 states have call successors, (606), 169 states have call predecessors, (606), 179 states have return successors, (746), 577 states have call predecessors, (746), 598 states have call successors, (746) [2025-01-09 03:41:29,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3161 states to 3161 states and 5081 transitions. [2025-01-09 03:41:29,976 INFO L78 Accepts]: Start accepts. Automaton has 3161 states and 5081 transitions. Word has length 140 [2025-01-09 03:41:29,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:29,977 INFO L471 AbstractCegarLoop]: Abstraction has 3161 states and 5081 transitions. [2025-01-09 03:41:29,977 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) [2025-01-09 03:41:29,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3161 states and 5081 transitions. [2025-01-09 03:41:29,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-01-09 03:41:29,980 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:29,980 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] [2025-01-09 03:41:29,991 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-01-09 03:41:30,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:30,185 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:30,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:30,186 INFO L85 PathProgramCache]: Analyzing trace with hash 802159531, now seen corresponding path program 1 times [2025-01-09 03:41:30,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:30,186 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085846377] [2025-01-09 03:41:30,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:30,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:30,201 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:41:30,209 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:41:30,209 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:30,209 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-01-09 03:41:30,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:30,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085846377] [2025-01-09 03:41:30,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085846377] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:30,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345602496] [2025-01-09 03:41:30,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:30,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:30,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:30,405 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:30,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-01-09 03:41:30,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-01-09 03:41:30,629 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-01-09 03:41:30,629 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:30,629 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:30,633 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-01-09 03:41:30,636 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:30,758 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-01-09 03:41:30,759 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:30,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345602496] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:30,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:30,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2025-01-09 03:41:30,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191934511] [2025-01-09 03:41:30,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:30,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:41:30,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:30,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:41:30,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:41:30,760 INFO L87 Difference]: Start difference. First operand 3161 states and 5081 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) [2025-01-09 03:41:33,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:33,163 INFO L93 Difference]: Finished difference Result 7371 states and 11927 transitions. [2025-01-09 03:41:33,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-01-09 03:41:33,164 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 [2025-01-09 03:41:33,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:33,186 INFO L225 Difference]: With dead ends: 7371 [2025-01-09 03:41:33,186 INFO L226 Difference]: Without dead ends: 4255 [2025-01-09 03:41:33,199 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 [2025-01-09 03:41:33,200 INFO L435 NwaCegarLoop]: 446 mSDtfsCounter, 2313 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 5010 mSolverCounterSat, 537 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2408 SdHoareTripleChecker+Valid, 2339 SdHoareTripleChecker+Invalid, 5547 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 537 IncrementalHoareTripleChecker+Valid, 5010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:33,200 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2408 Valid, 2339 Invalid, 5547 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [537 Valid, 5010 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2025-01-09 03:41:33,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4255 states. [2025-01-09 03:41:33,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4255 to 3687. [2025-01-09 03:41:33,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3687 states, 2767 states have (on average 1.5688471268521864) internal successors, (4341), 2880 states have internal predecessors, (4341), 696 states have call successors, (696), 191 states have call predecessors, (696), 223 states have return successors, (891), 667 states have call predecessors, (891), 688 states have call successors, (891) [2025-01-09 03:41:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3687 states to 3687 states and 5928 transitions. [2025-01-09 03:41:33,360 INFO L78 Accepts]: Start accepts. Automaton has 3687 states and 5928 transitions. Word has length 140 [2025-01-09 03:41:33,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:33,360 INFO L471 AbstractCegarLoop]: Abstraction has 3687 states and 5928 transitions. [2025-01-09 03:41:33,360 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) [2025-01-09 03:41:33,360 INFO L276 IsEmpty]: Start isEmpty. Operand 3687 states and 5928 transitions. [2025-01-09 03:41:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-01-09 03:41:33,364 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:33,364 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] [2025-01-09 03:41:33,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-01-09 03:41:33,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:33,565 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:33,565 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:33,565 INFO L85 PathProgramCache]: Analyzing trace with hash -251450133, now seen corresponding path program 1 times [2025-01-09 03:41:33,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:33,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254379953] [2025-01-09 03:41:33,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:33,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:33,580 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:41:33,587 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:41:33,588 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:33,588 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:33,789 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:41:33,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:33,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254379953] [2025-01-09 03:41:33,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254379953] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:33,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337582699] [2025-01-09 03:41:33,790 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:33,790 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:33,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:33,791 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:33,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-01-09 03:41:33,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-01-09 03:41:33,990 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-01-09 03:41:33,990 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:33,990 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:33,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-01-09 03:41:33,997 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:34,086 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:41:34,086 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:34,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [337582699] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:34,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:34,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-01-09 03:41:34,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939385331] [2025-01-09 03:41:34,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:34,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-01-09 03:41:34,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:34,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-01-09 03:41:34,087 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:41:34,087 INFO L87 Difference]: Start difference. First operand 3687 states and 5928 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) [2025-01-09 03:41:36,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:36,917 INFO L93 Difference]: Finished difference Result 10069 states and 16508 transitions. [2025-01-09 03:41:36,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-01-09 03:41:36,917 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 [2025-01-09 03:41:36,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:36,949 INFO L225 Difference]: With dead ends: 10069 [2025-01-09 03:41:36,949 INFO L226 Difference]: Without dead ends: 6427 [2025-01-09 03:41:36,965 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-01-09 03:41:36,966 INFO L435 NwaCegarLoop]: 611 mSDtfsCounter, 2632 mSDsluCounter, 1686 mSDsCounter, 0 mSdLazyCounter, 5936 mSolverCounterSat, 657 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2732 SdHoareTripleChecker+Valid, 2297 SdHoareTripleChecker+Invalid, 6593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 657 IncrementalHoareTripleChecker+Valid, 5936 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:36,966 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2732 Valid, 2297 Invalid, 6593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [657 Valid, 5936 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-01-09 03:41:36,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6427 states. [2025-01-09 03:41:37,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6427 to 5817. [2025-01-09 03:41:37,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5817 states, 4368 states have (on average 1.5670787545787546) internal successors, (6845), 4554 states have internal predecessors, (6845), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 364 states have return successors, (1508), 1048 states have call predecessors, (1508), 1076 states have call successors, (1508) [2025-01-09 03:41:37,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5817 states to 5817 states and 9437 transitions. [2025-01-09 03:41:37,199 INFO L78 Accepts]: Start accepts. Automaton has 5817 states and 9437 transitions. Word has length 142 [2025-01-09 03:41:37,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:37,199 INFO L471 AbstractCegarLoop]: Abstraction has 5817 states and 9437 transitions. [2025-01-09 03:41:37,200 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) [2025-01-09 03:41:37,200 INFO L276 IsEmpty]: Start isEmpty. Operand 5817 states and 9437 transitions. [2025-01-09 03:41:37,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 03:41:37,203 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:37,203 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] [2025-01-09 03:41:37,211 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-01-09 03:41:37,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:37,404 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:37,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:37,406 INFO L85 PathProgramCache]: Analyzing trace with hash 1792112787, now seen corresponding path program 1 times [2025-01-09 03:41:37,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:37,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926548646] [2025-01-09 03:41:37,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:37,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:37,420 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:41:37,429 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:41:37,429 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:37,429 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:37,649 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:41:37,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926548646] [2025-01-09 03:41:37,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926548646] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:37,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729752707] [2025-01-09 03:41:37,650 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:37,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:37,652 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:37,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-01-09 03:41:37,761 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:41:37,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:41:37,865 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:37,865 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:37,871 INFO L256 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:41:37,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:37,888 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:41:37,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:37,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729752707] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:37,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:37,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-01-09 03:41:37,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649440060] [2025-01-09 03:41:37,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:37,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:41:37,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:37,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:41:37,890 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:41:37,890 INFO L87 Difference]: Start difference. First operand 5817 states and 9437 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) [2025-01-09 03:41:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:38,142 INFO L93 Difference]: Finished difference Result 13736 states and 22571 transitions. [2025-01-09 03:41:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:41:38,143 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 [2025-01-09 03:41:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:38,173 INFO L225 Difference]: With dead ends: 13736 [2025-01-09 03:41:38,173 INFO L226 Difference]: Without dead ends: 7968 [2025-01-09 03:41:38,188 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 [2025-01-09 03:41:38,188 INFO L435 NwaCegarLoop]: 1537 mSDtfsCounter, 807 mSDsluCounter, 835 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 2372 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 [2025-01-09 03:41:38,188 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 2372 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:38,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7968 states. [2025-01-09 03:41:38,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7968 to 5805. [2025-01-09 03:41:38,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5805 states, 4360 states have (on average 1.5662844036697248) internal successors, (6829), 4542 states have internal predecessors, (6829), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 360 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:38,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5805 states to 5805 states and 9385 transitions. [2025-01-09 03:41:38,404 INFO L78 Accepts]: Start accepts. Automaton has 5805 states and 9385 transitions. Word has length 147 [2025-01-09 03:41:38,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:38,405 INFO L471 AbstractCegarLoop]: Abstraction has 5805 states and 9385 transitions. [2025-01-09 03:41:38,405 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) [2025-01-09 03:41:38,405 INFO L276 IsEmpty]: Start isEmpty. Operand 5805 states and 9385 transitions. [2025-01-09 03:41:38,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-01-09 03:41:38,408 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:38,408 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] [2025-01-09 03:41:38,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:38,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-01-09 03:41:38,609 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:38,610 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:38,610 INFO L85 PathProgramCache]: Analyzing trace with hash -1843322987, now seen corresponding path program 1 times [2025-01-09 03:41:38,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:38,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819142846] [2025-01-09 03:41:38,610 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:38,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:38,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:41:38,634 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:41:38,634 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:38,634 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:38,863 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-01-09 03:41:38,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:38,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819142846] [2025-01-09 03:41:38,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819142846] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:38,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1327696559] [2025-01-09 03:41:38,864 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:38,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:38,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:38,866 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:38,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-01-09 03:41:38,981 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-01-09 03:41:39,083 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-01-09 03:41:39,083 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:39,083 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:39,087 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-01-09 03:41:39,090 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-01-09 03:41:39,180 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:39,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1327696559] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:39,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:39,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-01-09 03:41:39,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888918343] [2025-01-09 03:41:39,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:39,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 03:41:39,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:39,181 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 03:41:39,181 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-01-09 03:41:39,181 INFO L87 Difference]: Start difference. First operand 5805 states and 9385 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) [2025-01-09 03:41:39,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:39,435 INFO L93 Difference]: Finished difference Result 5807 states and 9386 transitions. [2025-01-09 03:41:39,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 03:41:39,435 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 [2025-01-09 03:41:39,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:39,466 INFO L225 Difference]: With dead ends: 5807 [2025-01-09 03:41:39,466 INFO L226 Difference]: Without dead ends: 5805 [2025-01-09 03:41:39,472 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 [2025-01-09 03:41:39,472 INFO L435 NwaCegarLoop]: 928 mSDtfsCounter, 353 mSDsluCounter, 3306 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 4234 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 [2025-01-09 03:41:39,472 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 4234 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:39,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5805 states. [2025-01-09 03:41:39,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5805 to 5805. [2025-01-09 03:41:39,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5805 states, 4360 states have (on average 1.5596330275229358) internal successors, (6800), 4542 states have internal predecessors, (6800), 1084 states have call successors, (1084), 291 states have call predecessors, (1084), 360 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:39,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5805 states to 5805 states and 9356 transitions. [2025-01-09 03:41:39,700 INFO L78 Accepts]: Start accepts. Automaton has 5805 states and 9356 transitions. Word has length 147 [2025-01-09 03:41:39,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:39,700 INFO L471 AbstractCegarLoop]: Abstraction has 5805 states and 9356 transitions. [2025-01-09 03:41:39,701 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) [2025-01-09 03:41:39,701 INFO L276 IsEmpty]: Start isEmpty. Operand 5805 states and 9356 transitions. [2025-01-09 03:41:39,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-01-09 03:41:39,705 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:39,705 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] [2025-01-09 03:41:39,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:39,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-01-09 03:41:39,910 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:39,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:39,911 INFO L85 PathProgramCache]: Analyzing trace with hash -535445388, now seen corresponding path program 1 times [2025-01-09 03:41:39,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:39,911 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [750063524] [2025-01-09 03:41:39,911 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:39,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:39,921 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:41:39,930 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:41:39,930 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:39,930 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:40,094 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-01-09 03:41:40,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [750063524] [2025-01-09 03:41:40,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [750063524] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:40,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [882678553] [2025-01-09 03:41:40,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:40,095 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:40,098 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:40,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-01-09 03:41:40,210 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-01-09 03:41:40,347 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-01-09 03:41:40,347 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:40,347 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:40,352 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:40,354 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:40,382 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-01-09 03:41:40,383 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:40,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [882678553] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:40,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:40,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:40,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626566090] [2025-01-09 03:41:40,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:40,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:40,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:40,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:40,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:40,384 INFO L87 Difference]: Start difference. First operand 5805 states and 9356 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) [2025-01-09 03:41:40,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:40,667 INFO L93 Difference]: Finished difference Result 11835 states and 19322 transitions. [2025-01-09 03:41:40,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:40,667 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 [2025-01-09 03:41:40,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:40,697 INFO L225 Difference]: With dead ends: 11835 [2025-01-09 03:41:40,697 INFO L226 Difference]: Without dead ends: 6075 [2025-01-09 03:41:40,718 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 [2025-01-09 03:41:40,719 INFO L435 NwaCegarLoop]: 783 mSDtfsCounter, 144 mSDsluCounter, 1543 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2326 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 [2025-01-09 03:41:40,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2326 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:40,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2025-01-09 03:41:40,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 6039. [2025-01-09 03:41:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6039 states, 4588 states have (on average 1.577593722755013) internal successors, (7238), 4770 states have internal predecessors, (7238), 1084 states have call successors, (1084), 297 states have call predecessors, (1084), 366 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6039 states to 6039 states and 9794 transitions. [2025-01-09 03:41:40,965 INFO L78 Accepts]: Start accepts. Automaton has 6039 states and 9794 transitions. Word has length 170 [2025-01-09 03:41:40,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:40,966 INFO L471 AbstractCegarLoop]: Abstraction has 6039 states and 9794 transitions. [2025-01-09 03:41:40,966 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) [2025-01-09 03:41:40,966 INFO L276 IsEmpty]: Start isEmpty. Operand 6039 states and 9794 transitions. [2025-01-09 03:41:40,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-01-09 03:41:40,970 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:40,970 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] [2025-01-09 03:41:40,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:41,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:41,175 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:41,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:41,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1985151168, now seen corresponding path program 1 times [2025-01-09 03:41:41,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:41,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978596211] [2025-01-09 03:41:41,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:41,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:41,189 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:41:41,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:41:41,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:41,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:41,363 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-09 03:41:41,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978596211] [2025-01-09 03:41:41,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978596211] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:41,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998940250] [2025-01-09 03:41:41,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:41,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:41,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:41,365 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:41,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-01-09 03:41:41,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-01-09 03:41:41,576 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-01-09 03:41:41,576 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:41,576 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:41,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:41,583 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-01-09 03:41:41,608 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:41,608 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998940250] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:41,608 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:41,608 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:41,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815014099] [2025-01-09 03:41:41,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:41,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:41,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:41,609 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:41,609 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:41,610 INFO L87 Difference]: Start difference. First operand 6039 states and 9794 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) [2025-01-09 03:41:41,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:41,938 INFO L93 Difference]: Finished difference Result 12321 states and 20198 transitions. [2025-01-09 03:41:41,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:41,938 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 [2025-01-09 03:41:41,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:41,970 INFO L225 Difference]: With dead ends: 12321 [2025-01-09 03:41:41,971 INFO L226 Difference]: Without dead ends: 6327 [2025-01-09 03:41:41,992 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 [2025-01-09 03:41:41,993 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 142 mSDsluCounter, 1541 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2323 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 [2025-01-09 03:41:41,993 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2323 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:41,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2025-01-09 03:41:42,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 6273. [2025-01-09 03:41:42,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6273 states, 4816 states have (on average 1.5938538205980066) internal successors, (7676), 4998 states have internal predecessors, (7676), 1084 states have call successors, (1084), 303 states have call predecessors, (1084), 372 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6273 states to 6273 states and 10232 transitions. [2025-01-09 03:41:42,319 INFO L78 Accepts]: Start accepts. Automaton has 6273 states and 10232 transitions. Word has length 175 [2025-01-09 03:41:42,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:42,320 INFO L471 AbstractCegarLoop]: Abstraction has 6273 states and 10232 transitions. [2025-01-09 03:41:42,320 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) [2025-01-09 03:41:42,320 INFO L276 IsEmpty]: Start isEmpty. Operand 6273 states and 10232 transitions. [2025-01-09 03:41:42,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-01-09 03:41:42,324 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:42,324 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] [2025-01-09 03:41:42,332 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-01-09 03:41:42,525 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-01-09 03:41:42,525 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:42,526 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:42,526 INFO L85 PathProgramCache]: Analyzing trace with hash 1764977904, now seen corresponding path program 1 times [2025-01-09 03:41:42,526 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:42,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1853898959] [2025-01-09 03:41:42,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:42,526 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:42,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:41:42,552 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:41:42,552 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:42,552 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:42,738 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-01-09 03:41:42,738 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1853898959] [2025-01-09 03:41:42,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1853898959] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:42,738 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377134599] [2025-01-09 03:41:42,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:42,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:42,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:42,741 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:42,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-01-09 03:41:42,875 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-01-09 03:41:42,991 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-01-09 03:41:42,992 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:42,992 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:42,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:43,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:43,031 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-01-09 03:41:43,031 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:43,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377134599] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:43,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:43,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:43,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542342920] [2025-01-09 03:41:43,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:43,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:43,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:43,032 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:43,032 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:43,032 INFO L87 Difference]: Start difference. First operand 6273 states and 10232 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) [2025-01-09 03:41:43,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:43,343 INFO L93 Difference]: Finished difference Result 12807 states and 21074 transitions. [2025-01-09 03:41:43,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:43,343 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 [2025-01-09 03:41:43,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:43,380 INFO L225 Difference]: With dead ends: 12807 [2025-01-09 03:41:43,380 INFO L226 Difference]: Without dead ends: 6579 [2025-01-09 03:41:43,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:43,400 INFO L435 NwaCegarLoop]: 781 mSDtfsCounter, 140 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2320 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 [2025-01-09 03:41:43,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2320 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:43,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6579 states. [2025-01-09 03:41:43,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6579 to 6507. [2025-01-09 03:41:43,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6507 states, 5044 states have (on average 1.6086439333862015) internal successors, (8114), 5226 states have internal predecessors, (8114), 1084 states have call successors, (1084), 309 states have call predecessors, (1084), 378 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6507 states to 6507 states and 10670 transitions. [2025-01-09 03:41:43,608 INFO L78 Accepts]: Start accepts. Automaton has 6507 states and 10670 transitions. Word has length 179 [2025-01-09 03:41:43,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:43,608 INFO L471 AbstractCegarLoop]: Abstraction has 6507 states and 10670 transitions. [2025-01-09 03:41:43,608 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) [2025-01-09 03:41:43,608 INFO L276 IsEmpty]: Start isEmpty. Operand 6507 states and 10670 transitions. [2025-01-09 03:41:43,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-01-09 03:41:43,612 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:43,613 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] [2025-01-09 03:41:43,621 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:43,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-01-09 03:41:43,813 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:43,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:43,814 INFO L85 PathProgramCache]: Analyzing trace with hash -2047866540, now seen corresponding path program 1 times [2025-01-09 03:41:43,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:43,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134152766] [2025-01-09 03:41:43,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:43,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:43,825 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:41:43,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:41:43,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:43,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:44,002 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-01-09 03:41:44,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134152766] [2025-01-09 03:41:44,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134152766] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:44,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128566562] [2025-01-09 03:41:44,002 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:44,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:44,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:44,004 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:44,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-01-09 03:41:44,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-01-09 03:41:44,230 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-01-09 03:41:44,230 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:44,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:44,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:44,237 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:44,264 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-01-09 03:41:44,264 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:44,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128566562] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:44,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:44,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:44,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148427684] [2025-01-09 03:41:44,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:44,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:44,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:44,265 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:44,265 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:44,266 INFO L87 Difference]: Start difference. First operand 6507 states and 10670 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) [2025-01-09 03:41:44,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:44,544 INFO L93 Difference]: Finished difference Result 13293 states and 21950 transitions. [2025-01-09 03:41:44,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:44,544 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 [2025-01-09 03:41:44,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:44,571 INFO L225 Difference]: With dead ends: 13293 [2025-01-09 03:41:44,571 INFO L226 Difference]: Without dead ends: 6831 [2025-01-09 03:41:44,589 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 [2025-01-09 03:41:44,589 INFO L435 NwaCegarLoop]: 780 mSDtfsCounter, 138 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2317 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 [2025-01-09 03:41:44,589 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2317 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:44,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6831 states. [2025-01-09 03:41:44,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6831 to 6741. [2025-01-09 03:41:44,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6741 states, 5272 states have (on average 1.622154779969651) internal successors, (8552), 5454 states have internal predecessors, (8552), 1084 states have call successors, (1084), 315 states have call predecessors, (1084), 384 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:44,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6741 states to 6741 states and 11108 transitions. [2025-01-09 03:41:44,784 INFO L78 Accepts]: Start accepts. Automaton has 6741 states and 11108 transitions. Word has length 182 [2025-01-09 03:41:44,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:44,785 INFO L471 AbstractCegarLoop]: Abstraction has 6741 states and 11108 transitions. [2025-01-09 03:41:44,785 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) [2025-01-09 03:41:44,785 INFO L276 IsEmpty]: Start isEmpty. Operand 6741 states and 11108 transitions. [2025-01-09 03:41:44,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 03:41:44,788 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:44,788 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] [2025-01-09 03:41:44,796 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:44,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:44,989 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:44,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:44,989 INFO L85 PathProgramCache]: Analyzing trace with hash 1032558308, now seen corresponding path program 1 times [2025-01-09 03:41:44,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:44,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893651981] [2025-01-09 03:41:44,989 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:44,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:45,001 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:41:45,007 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:41:45,008 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:45,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-01-09 03:41:45,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:45,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893651981] [2025-01-09 03:41:45,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893651981] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:45,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719257523] [2025-01-09 03:41:45,206 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:45,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:45,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:45,208 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:45,211 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-01-09 03:41:45,332 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:41:45,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:41:45,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:45,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:45,450 INFO L256 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:45,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:45,482 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-01-09 03:41:45,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:45,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719257523] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:45,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:45,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:45,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679280167] [2025-01-09 03:41:45,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:45,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:45,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:45,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:45,484 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:45,484 INFO L87 Difference]: Start difference. First operand 6741 states and 11108 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) [2025-01-09 03:41:45,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:45,783 INFO L93 Difference]: Finished difference Result 13779 states and 22826 transitions. [2025-01-09 03:41:45,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:45,783 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 [2025-01-09 03:41:45,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:45,818 INFO L225 Difference]: With dead ends: 13779 [2025-01-09 03:41:45,819 INFO L226 Difference]: Without dead ends: 7083 [2025-01-09 03:41:45,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:45,842 INFO L435 NwaCegarLoop]: 778 mSDtfsCounter, 136 mSDsluCounter, 1532 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2310 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 [2025-01-09 03:41:45,843 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2310 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:45,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7083 states. [2025-01-09 03:41:46,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7083 to 6975. [2025-01-09 03:41:46,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6975 states, 5500 states have (on average 1.6345454545454545) internal successors, (8990), 5682 states have internal predecessors, (8990), 1084 states have call successors, (1084), 321 states have call predecessors, (1084), 390 states have return successors, (1472), 1048 states have call predecessors, (1472), 1076 states have call successors, (1472) [2025-01-09 03:41:46,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6975 states to 6975 states and 11546 transitions. [2025-01-09 03:41:46,062 INFO L78 Accepts]: Start accepts. Automaton has 6975 states and 11546 transitions. Word has length 184 [2025-01-09 03:41:46,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:46,062 INFO L471 AbstractCegarLoop]: Abstraction has 6975 states and 11546 transitions. [2025-01-09 03:41:46,062 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) [2025-01-09 03:41:46,063 INFO L276 IsEmpty]: Start isEmpty. Operand 6975 states and 11546 transitions. [2025-01-09 03:41:46,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-01-09 03:41:46,066 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:46,067 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] [2025-01-09 03:41:46,075 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-01-09 03:41:46,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:46,267 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:46,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:46,268 INFO L85 PathProgramCache]: Analyzing trace with hash 1237533843, now seen corresponding path program 1 times [2025-01-09 03:41:46,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:46,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675791279] [2025-01-09 03:41:46,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:46,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:46,280 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:41:46,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:41:46,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:46,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:46,511 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-01-09 03:41:46,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:46,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675791279] [2025-01-09 03:41:46,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675791279] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:46,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029511458] [2025-01-09 03:41:46,512 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:46,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:46,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:46,514 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:46,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-01-09 03:41:46,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-01-09 03:41:46,742 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-01-09 03:41:46,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:46,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:46,746 INFO L256 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-01-09 03:41:46,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:46,977 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-01-09 03:41:46,977 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:46,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029511458] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:46,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:46,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2025-01-09 03:41:46,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612630232] [2025-01-09 03:41:46,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:46,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 03:41:46,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:46,978 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 03:41:46,978 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-01-09 03:41:46,978 INFO L87 Difference]: Start difference. First operand 6975 states and 11546 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) [2025-01-09 03:41:49,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:49,056 INFO L93 Difference]: Finished difference Result 21685 states and 36462 transitions. [2025-01-09 03:41:49,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-01-09 03:41:49,081 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 [2025-01-09 03:41:49,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:49,150 INFO L225 Difference]: With dead ends: 21685 [2025-01-09 03:41:49,151 INFO L226 Difference]: Without dead ends: 11413 [2025-01-09 03:41:49,188 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2025-01-09 03:41:49,188 INFO L435 NwaCegarLoop]: 363 mSDtfsCounter, 1927 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 3837 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 2252 SdHoareTripleChecker+Invalid, 4321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 3837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:49,189 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2027 Valid, 2252 Invalid, 4321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 3837 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2025-01-09 03:41:49,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11413 states. [2025-01-09 03:41:49,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11413 to 11288. [2025-01-09 03:41:49,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11288 states, 8798 states have (on average 1.6312798363264378) internal successors, (14352), 9153 states have internal predecessors, (14352), 1815 states have call successors, (1815), 507 states have call predecessors, (1815), 674 states have return successors, (2537), 1776 states have call predecessors, (2537), 1807 states have call successors, (2537) [2025-01-09 03:41:49,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11288 states to 11288 states and 18704 transitions. [2025-01-09 03:41:49,648 INFO L78 Accepts]: Start accepts. Automaton has 11288 states and 18704 transitions. Word has length 184 [2025-01-09 03:41:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:49,649 INFO L471 AbstractCegarLoop]: Abstraction has 11288 states and 18704 transitions. [2025-01-09 03:41:49,649 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) [2025-01-09 03:41:49,649 INFO L276 IsEmpty]: Start isEmpty. Operand 11288 states and 18704 transitions. [2025-01-09 03:41:49,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-01-09 03:41:49,657 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:49,657 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] [2025-01-09 03:41:49,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-01-09 03:41:49,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:49,858 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:49,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:49,859 INFO L85 PathProgramCache]: Analyzing trace with hash 708833310, now seen corresponding path program 1 times [2025-01-09 03:41:49,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:49,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646987932] [2025-01-09 03:41:49,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:49,859 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:49,872 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-01-09 03:41:49,878 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-01-09 03:41:49,878 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:49,878 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:50,088 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-01-09 03:41:50,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:50,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646987932] [2025-01-09 03:41:50,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646987932] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:50,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 03:41:50,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-01-09 03:41:50,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46275510] [2025-01-09 03:41:50,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:50,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-01-09 03:41:50,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:50,089 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-01-09 03:41:50,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-01-09 03:41:50,090 INFO L87 Difference]: Start difference. First operand 11288 states and 18704 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) [2025-01-09 03:41:50,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:50,554 INFO L93 Difference]: Finished difference Result 22273 states and 36919 transitions. [2025-01-09 03:41:50,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-01-09 03:41:50,555 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 [2025-01-09 03:41:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:50,603 INFO L225 Difference]: With dead ends: 22273 [2025-01-09 03:41:50,603 INFO L226 Difference]: Without dead ends: 10670 [2025-01-09 03:41:50,635 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 [2025-01-09 03:41:50,636 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 33 mSDsluCounter, 4894 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5715 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-01-09 03:41:50,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5715 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-01-09 03:41:50,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10670 states. [2025-01-09 03:41:51,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10670 to 10646. [2025-01-09 03:41:51,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10646 states, 8391 states have (on average 1.6442617089739007) internal successors, (13797), 8721 states have internal predecessors, (13797), 1630 states have call successors, (1630), 483 states have call predecessors, (1630), 624 states have return successors, (2185), 1570 states have call predecessors, (2185), 1622 states have call successors, (2185) [2025-01-09 03:41:51,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10646 states to 10646 states and 17612 transitions. [2025-01-09 03:41:51,314 INFO L78 Accepts]: Start accepts. Automaton has 10646 states and 17612 transitions. Word has length 187 [2025-01-09 03:41:51,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:51,314 INFO L471 AbstractCegarLoop]: Abstraction has 10646 states and 17612 transitions. [2025-01-09 03:41:51,314 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) [2025-01-09 03:41:51,314 INFO L276 IsEmpty]: Start isEmpty. Operand 10646 states and 17612 transitions. [2025-01-09 03:41:51,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2025-01-09 03:41:51,323 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:51,323 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] [2025-01-09 03:41:51,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-01-09 03:41:51,323 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:51,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:51,324 INFO L85 PathProgramCache]: Analyzing trace with hash 180378792, now seen corresponding path program 1 times [2025-01-09 03:41:51,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:51,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592699321] [2025-01-09 03:41:51,324 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:51,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:51,348 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 530 statements into 1 equivalence classes. [2025-01-09 03:41:51,355 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 530 of 530 statements. [2025-01-09 03:41:51,355 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:51,355 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:51,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:41:51,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:51,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592699321] [2025-01-09 03:41:51,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592699321] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:51,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6787324] [2025-01-09 03:41:51,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:51,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:51,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:51,786 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:51,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-01-09 03:41:51,968 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 530 statements into 1 equivalence classes. [2025-01-09 03:41:52,226 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 530 of 530 statements. [2025-01-09 03:41:52,226 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:52,226 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:52,236 INFO L256 TraceCheckSpWp]: Trace formula consists of 4038 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-01-09 03:41:52,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2025-01-09 03:41:52,272 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:52,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6787324] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:52,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:52,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-01-09 03:41:52,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771161409] [2025-01-09 03:41:52,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:52,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 03:41:52,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:52,274 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 03:41:52,274 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-01-09 03:41:52,274 INFO L87 Difference]: Start difference. First operand 10646 states and 17612 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2025-01-09 03:41:52,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:52,732 INFO L93 Difference]: Finished difference Result 21788 states and 36468 transitions. [2025-01-09 03:41:52,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 03:41:52,733 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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 [2025-01-09 03:41:52,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:52,820 INFO L225 Difference]: With dead ends: 21788 [2025-01-09 03:41:52,820 INFO L226 Difference]: Without dead ends: 16217 [2025-01-09 03:41:52,840 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 [2025-01-09 03:41:52,841 INFO L435 NwaCegarLoop]: 856 mSDtfsCounter, 840 mSDsluCounter, 807 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 840 SdHoareTripleChecker+Valid, 1663 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 [2025-01-09 03:41:52,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [840 Valid, 1663 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:52,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16217 states. [2025-01-09 03:41:53,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16217 to 16215. [2025-01-09 03:41:53,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16215 states, 12727 states have (on average 1.6434352164689243) internal successors, (20916), 13256 states have internal predecessors, (20916), 2542 states have call successors, (2542), 733 states have call predecessors, (2542), 945 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2025-01-09 03:41:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16215 states to 16215 states and 27034 transitions. [2025-01-09 03:41:53,452 INFO L78 Accepts]: Start accepts. Automaton has 16215 states and 27034 transitions. Word has length 530 [2025-01-09 03:41:53,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:53,453 INFO L471 AbstractCegarLoop]: Abstraction has 16215 states and 27034 transitions. [2025-01-09 03:41:53,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2025-01-09 03:41:53,453 INFO L276 IsEmpty]: Start isEmpty. Operand 16215 states and 27034 transitions. [2025-01-09 03:41:53,467 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2025-01-09 03:41:53,467 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:53,467 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] [2025-01-09 03:41:53,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-01-09 03:41:53,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:53,668 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:53,669 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:53,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1358544017, now seen corresponding path program 1 times [2025-01-09 03:41:53,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:53,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597746093] [2025-01-09 03:41:53,669 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:53,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:53,698 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 531 statements into 1 equivalence classes. [2025-01-09 03:41:53,707 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 531 of 531 statements. [2025-01-09 03:41:53,707 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:53,707 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:54,239 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:41:54,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:54,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597746093] [2025-01-09 03:41:54,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597746093] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:54,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444998324] [2025-01-09 03:41:54,240 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:54,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:54,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:54,242 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:54,243 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-01-09 03:41:54,429 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 531 statements into 1 equivalence classes. [2025-01-09 03:41:54,715 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 531 of 531 statements. [2025-01-09 03:41:54,716 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:54,716 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:54,728 INFO L256 TraceCheckSpWp]: Trace formula consists of 4039 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:54,737 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:54,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 674 proven. 0 refuted. 0 times theorem prover too weak. 709 trivial. 0 not checked. [2025-01-09 03:41:54,774 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:54,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444998324] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:54,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:54,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698993518] [2025-01-09 03:41:54,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:54,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:54,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:54,775 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:54,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:54,775 INFO L87 Difference]: Start difference. First operand 16215 states and 27034 transitions. Second operand has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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) [2025-01-09 03:41:55,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:55,401 INFO L93 Difference]: Finished difference Result 32523 states and 54748 transitions. [2025-01-09 03:41:55,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:55,402 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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 [2025-01-09 03:41:55,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:55,485 INFO L225 Difference]: With dead ends: 32523 [2025-01-09 03:41:55,485 INFO L226 Difference]: Without dead ends: 16350 [2025-01-09 03:41:55,543 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:55,544 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 22 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2451 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 [2025-01-09 03:41:55,544 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2451 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:55,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16350 states. [2025-01-09 03:41:56,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16350 to 16350. [2025-01-09 03:41:56,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16350 states, 12847 states have (on average 1.6444306063672454) internal successors, (21126), 13376 states have internal predecessors, (21126), 2542 states have call successors, (2542), 748 states have call predecessors, (2542), 960 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2025-01-09 03:41:56,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16350 states to 16350 states and 27244 transitions. [2025-01-09 03:41:56,143 INFO L78 Accepts]: Start accepts. Automaton has 16350 states and 27244 transitions. Word has length 531 [2025-01-09 03:41:56,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:56,144 INFO L471 AbstractCegarLoop]: Abstraction has 16350 states and 27244 transitions. [2025-01-09 03:41:56,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.5) internal successors, (214), 4 states have internal predecessors, (214), 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) [2025-01-09 03:41:56,144 INFO L276 IsEmpty]: Start isEmpty. Operand 16350 states and 27244 transitions. [2025-01-09 03:41:56,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2025-01-09 03:41:56,158 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:56,159 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] [2025-01-09 03:41:56,171 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-01-09 03:41:56,359 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:56,359 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:56,360 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:56,360 INFO L85 PathProgramCache]: Analyzing trace with hash -1508029659, now seen corresponding path program 1 times [2025-01-09 03:41:56,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:56,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633364905] [2025-01-09 03:41:56,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:56,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:56,382 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-01-09 03:41:56,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-01-09 03:41:56,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:56,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:56,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:41:56,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633364905] [2025-01-09 03:41:56,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633364905] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:56,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1444210759] [2025-01-09 03:41:56,797 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:56,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:56,797 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:56,800 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:56,801 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-01-09 03:41:56,993 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-01-09 03:41:57,251 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-01-09 03:41:57,251 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:57,251 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:57,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:41:57,271 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:41:57,296 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-01-09 03:41:57,297 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:41:57,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1444210759] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:41:57,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:41:57,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:41:57,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414947305] [2025-01-09 03:41:57,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:41:57,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:41:57,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:41:57,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:41:57,298 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:41:57,298 INFO L87 Difference]: Start difference. First operand 16350 states and 27244 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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) [2025-01-09 03:41:58,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:41:58,001 INFO L93 Difference]: Finished difference Result 32793 states and 55108 transitions. [2025-01-09 03:41:58,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:41:58,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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 [2025-01-09 03:41:58,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:41:58,085 INFO L225 Difference]: With dead ends: 32793 [2025-01-09 03:41:58,085 INFO L226 Difference]: Without dead ends: 16485 [2025-01-09 03:41:58,149 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 548 GetRequests, 537 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:41:58,149 INFO L435 NwaCegarLoop]: 823 mSDtfsCounter, 20 mSDsluCounter, 1622 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2445 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 [2025-01-09 03:41:58,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2445 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:41:58,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16485 states. [2025-01-09 03:41:58,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16485 to 16485. [2025-01-09 03:41:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16485 states, 12967 states have (on average 1.645407573070101) internal successors, (21336), 13496 states have internal predecessors, (21336), 2542 states have call successors, (2542), 763 states have call predecessors, (2542), 975 states have return successors, (3576), 2483 states have call predecessors, (3576), 2530 states have call successors, (3576) [2025-01-09 03:41:59,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16485 states to 16485 states and 27454 transitions. [2025-01-09 03:41:59,044 INFO L78 Accepts]: Start accepts. Automaton has 16485 states and 27454 transitions. Word has length 532 [2025-01-09 03:41:59,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:41:59,044 INFO L471 AbstractCegarLoop]: Abstraction has 16485 states and 27454 transitions. [2025-01-09 03:41:59,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 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) [2025-01-09 03:41:59,044 INFO L276 IsEmpty]: Start isEmpty. Operand 16485 states and 27454 transitions. [2025-01-09 03:41:59,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2025-01-09 03:41:59,057 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:41:59,057 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, 1] [2025-01-09 03:41:59,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-01-09 03:41:59,258 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,21 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:59,258 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:41:59,258 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:41:59,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1156491699, now seen corresponding path program 1 times [2025-01-09 03:41:59,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:41:59,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61799720] [2025-01-09 03:41:59,259 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:59,259 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:41:59,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-01-09 03:41:59,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-01-09 03:41:59,293 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:41:59,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:41:59,824 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:41:59,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:41:59,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61799720] [2025-01-09 03:41:59,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61799720] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:41:59,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115321766] [2025-01-09 03:41:59,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:41:59,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:41:59,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:41:59,826 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:41:59,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-01-09 03:42:00,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-01-09 03:42:00,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-01-09 03:42:00,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:00,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:00,270 INFO L256 TraceCheckSpWp]: Trace formula consists of 4041 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-01-09 03:42:00,277 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:00,590 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 695 proven. 0 refuted. 0 times theorem prover too weak. 688 trivial. 0 not checked. [2025-01-09 03:42:00,590 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:00,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2115321766] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:00,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:00,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2025-01-09 03:42:00,591 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532664805] [2025-01-09 03:42:00,591 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:00,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-01-09 03:42:00,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:00,591 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-01-09 03:42:00,591 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=237, Unknown=0, NotChecked=0, Total=272 [2025-01-09 03:42:00,592 INFO L87 Difference]: Start difference. First operand 16485 states and 27454 transitions. Second operand has 9 states, 9 states have (on average 25.555555555555557) internal successors, (230), 8 states have internal predecessors, (230), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2025-01-09 03:42:04,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:04,576 INFO L93 Difference]: Finished difference Result 56047 states and 95765 transitions. [2025-01-09 03:42:04,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-01-09 03:42:04,577 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 25.555555555555557) internal successors, (230), 8 states have internal predecessors, (230), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) Word has length 533 [2025-01-09 03:42:04,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:04,746 INFO L225 Difference]: With dead ends: 56047 [2025-01-09 03:42:04,746 INFO L226 Difference]: Without dead ends: 39567 [2025-01-09 03:42:04,824 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 534 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=519, Unknown=0, NotChecked=0, Total=600 [2025-01-09 03:42:04,824 INFO L435 NwaCegarLoop]: 450 mSDtfsCounter, 2233 mSDsluCounter, 1836 mSDsCounter, 0 mSdLazyCounter, 7322 mSolverCounterSat, 581 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2399 SdHoareTripleChecker+Valid, 2286 SdHoareTripleChecker+Invalid, 7903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 581 IncrementalHoareTripleChecker+Valid, 7322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2025-01-09 03:42:04,824 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2399 Valid, 2286 Invalid, 7903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [581 Valid, 7322 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2025-01-09 03:42:04,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39567 states. [2025-01-09 03:42:06,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39567 to 38449. [2025-01-09 03:42:06,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38449 states, 30575 states have (on average 1.637154538021259) internal successors, (50056), 31686 states have internal predecessors, (50056), 5624 states have call successors, (5624), 1872 states have call predecessors, (5624), 2249 states have return successors, (8615), 5516 states have call predecessors, (8615), 5595 states have call successors, (8615) [2025-01-09 03:42:06,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38449 states to 38449 states and 64295 transitions. [2025-01-09 03:42:06,275 INFO L78 Accepts]: Start accepts. Automaton has 38449 states and 64295 transitions. Word has length 533 [2025-01-09 03:42:06,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:06,276 INFO L471 AbstractCegarLoop]: Abstraction has 38449 states and 64295 transitions. [2025-01-09 03:42:06,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 25.555555555555557) internal successors, (230), 8 states have internal predecessors, (230), 6 states have call successors, (41), 5 states have call predecessors, (41), 7 states have return successors, (40), 7 states have call predecessors, (40), 6 states have call successors, (40) [2025-01-09 03:42:06,276 INFO L276 IsEmpty]: Start isEmpty. Operand 38449 states and 64295 transitions. [2025-01-09 03:42:06,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 534 [2025-01-09 03:42:06,288 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:06,289 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, 1] [2025-01-09 03:42:06,299 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-01-09 03:42:06,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-01-09 03:42:06,489 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:06,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:06,489 INFO L85 PathProgramCache]: Analyzing trace with hash 617891115, now seen corresponding path program 1 times [2025-01-09 03:42:06,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:06,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261871949] [2025-01-09 03:42:06,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:06,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:06,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-01-09 03:42:06,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-01-09 03:42:06,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:06,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:06,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:42:06,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261871949] [2025-01-09 03:42:06,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261871949] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:06,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626177029] [2025-01-09 03:42:06,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:06,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:06,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:06,860 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:42:06,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-01-09 03:42:07,042 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 533 statements into 1 equivalence classes. [2025-01-09 03:42:07,349 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 533 of 533 statements. [2025-01-09 03:42:07,350 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:07,350 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:07,364 INFO L256 TraceCheckSpWp]: Trace formula consists of 4041 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-01-09 03:42:07,372 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:07,408 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 672 proven. 0 refuted. 0 times theorem prover too weak. 711 trivial. 0 not checked. [2025-01-09 03:42:07,408 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-01-09 03:42:07,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626177029] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 03:42:07,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-01-09 03:42:07,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-01-09 03:42:07,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744581455] [2025-01-09 03:42:07,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 03:42:07,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-01-09 03:42:07,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:07,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-01-09 03:42:07,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-01-09 03:42:07,411 INFO L87 Difference]: Start difference. First operand 38449 states and 64295 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) [2025-01-09 03:42:08,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:08,957 INFO L93 Difference]: Finished difference Result 76744 states and 129286 transitions. [2025-01-09 03:42:08,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-01-09 03:42:08,958 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 533 [2025-01-09 03:42:08,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-01-09 03:42:09,153 INFO L225 Difference]: With dead ends: 76744 [2025-01-09 03:42:09,153 INFO L226 Difference]: Without dead ends: 38885 [2025-01-09 03:42:09,311 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 549 GetRequests, 538 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-01-09 03:42:09,311 INFO L435 NwaCegarLoop]: 821 mSDtfsCounter, 18 mSDsluCounter, 1618 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 2439 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-01-09 03:42:09,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 2439 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-01-09 03:42:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38885 states. [2025-01-09 03:42:10,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38885 to 38827. [2025-01-09 03:42:10,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38827 states, 30911 states have (on average 1.6383164569247193) internal successors, (50642), 32022 states have internal predecessors, (50642), 5624 states have call successors, (5624), 1914 states have call predecessors, (5624), 2291 states have return successors, (8315), 5516 states have call predecessors, (8315), 5595 states have call successors, (8315) [2025-01-09 03:42:11,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38827 states to 38827 states and 64581 transitions. [2025-01-09 03:42:11,242 INFO L78 Accepts]: Start accepts. Automaton has 38827 states and 64581 transitions. Word has length 533 [2025-01-09 03:42:11,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-01-09 03:42:11,242 INFO L471 AbstractCegarLoop]: Abstraction has 38827 states and 64581 transitions. [2025-01-09 03:42:11,242 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) [2025-01-09 03:42:11,242 INFO L276 IsEmpty]: Start isEmpty. Operand 38827 states and 64581 transitions. [2025-01-09 03:42:11,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 533 [2025-01-09 03:42:11,260 INFO L210 NwaCegarLoop]: Found error trace [2025-01-09 03:42:11,260 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] [2025-01-09 03:42:11,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-01-09 03:42:11,460 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-01-09 03:42:11,461 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-01-09 03:42:11,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 03:42:11,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1283673591, now seen corresponding path program 1 times [2025-01-09 03:42:11,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 03:42:11,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101513447] [2025-01-09 03:42:11,461 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:11,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 03:42:11,491 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-01-09 03:42:11,499 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-01-09 03:42:11,499 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:11,499 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-01-09 03:42:11,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 03:42:11,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101513447] [2025-01-09 03:42:11,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101513447] provided 0 perfect and 1 imperfect interpolant sequences [2025-01-09 03:42:11,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [334043446] [2025-01-09 03:42:11,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 03:42:11,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-01-09 03:42:11,984 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 03:42:11,986 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-01-09 03:42:11,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-01-09 03:42:12,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 532 statements into 1 equivalence classes. [2025-01-09 03:42:12,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 532 of 532 statements. [2025-01-09 03:42:12,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 03:42:12,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 03:42:12,448 INFO L256 TraceCheckSpWp]: Trace formula consists of 4040 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-01-09 03:42:12,455 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-01-09 03:42:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 757 proven. 270 refuted. 0 times theorem prover too weak. 356 trivial. 0 not checked. [2025-01-09 03:42:12,692 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-01-09 03:42:13,215 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 133 proven. 36 refuted. 0 times theorem prover too weak. 1214 trivial. 0 not checked. [2025-01-09 03:42:13,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [334043446] provided 0 perfect and 2 imperfect interpolant sequences [2025-01-09 03:42:13,216 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-01-09 03:42:13,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6, 5] total 16 [2025-01-09 03:42:13,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558581941] [2025-01-09 03:42:13,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-01-09 03:42:13,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2025-01-09 03:42:13,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 03:42:13,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2025-01-09 03:42:13,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-01-09 03:42:13,218 INFO L87 Difference]: Start difference. First operand 38827 states and 64581 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) [2025-01-09 03:42:34,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-01-09 03:42:34,095 INFO L93 Difference]: Finished difference Result 249261 states and 450551 transitions. [2025-01-09 03:42:34,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2025-01-09 03:42:34,095 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 [2025-01-09 03:42:34,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted.