./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:22:10,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:22:10,261 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:22:10,266 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:22:10,268 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:22:10,291 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:22:10,292 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:22:10,293 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:22:10,293 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:22:10,293 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:22:10,294 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:22:10,294 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:22:10,294 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:22:10,294 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:22:10,295 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:22:10,295 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:22:10,295 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:22:10,295 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:22:10,295 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:22:10,295 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:22:10,296 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:22:10,296 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:22:10,297 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:10,297 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:22:10,297 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:22:10,297 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:22:10,297 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:22:10,298 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6cc861ca86011eb32ffd09a18c7045c0cb28e684d3b73d1659bc499a4213e84 [2025-03-08 05:22:10,527 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:22:10,533 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:22:10,536 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:22:10,536 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:22:10,537 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:22:10,538 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2025-03-08 05:22:11,670 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924cffd3a/2282cb245de04febb31dade920b73aa7/FLAGc84402600 [2025-03-08 05:22:11,996 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:22:11,997 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c [2025-03-08 05:22:12,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924cffd3a/2282cb245de04febb31dade920b73aa7/FLAGc84402600 [2025-03-08 05:22:12,236 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/924cffd3a/2282cb245de04febb31dade920b73aa7 [2025-03-08 05:22:12,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:22:12,240 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:22:12,241 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:12,241 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:22:12,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:22:12,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14924845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12, skipping insertion in model container [2025-03-08 05:22:12,245 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,280 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:22:12,574 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c[69987,70000] [2025-03-08 05:22:12,576 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:12,585 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:22:12,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [48] [2025-03-08 05:22:12,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [414] [2025-03-08 05:22:12,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [517] [2025-03-08 05:22:12,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [558] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [911] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [946] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [960] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1627] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3197] [2025-03-08 05:22:12,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3315] [2025-03-08 05:22:12,672 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product20.cil.c[69987,70000] [2025-03-08 05:22:12,673 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:12,688 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:22:12,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12 WrapperNode [2025-03-08 05:22:12,688 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:12,689 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:12,689 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:22:12,689 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:22:12,693 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,707 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,738 INFO L138 Inliner]: procedures = 93, calls = 339, calls flagged for inlining = 26, calls inlined = 22, statements flattened = 1056 [2025-03-08 05:22:12,739 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:12,739 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:22:12,739 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:22:12,740 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:22:12,747 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,747 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,753 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,782 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 4, 2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-03-08 05:22:12,782 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,786 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,799 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,801 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,805 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,808 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:22:12,809 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:22:12,809 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:22:12,809 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:22:12,810 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (1/1) ... [2025-03-08 05:22:12,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:12,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:12,840 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 05:22:12,845 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 05:22:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:22:12,859 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-08 05:22:12,859 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-08 05:22:12,860 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-08 05:22:12,860 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-08 05:22:12,861 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 05:22:12,861 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-08 05:22:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-08 05:22:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-08 05:22:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:22:12,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:22:12,862 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-08 05:22:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-08 05:22:12,863 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-03-08 05:22:12,863 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-03-08 05:22:13,011 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:22:13,013 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:22:13,061 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3312: #res := ~retValue_acc~29; [2025-03-08 05:22:13,086 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3234: #res := ~retValue_acc~27; [2025-03-08 05:22:13,090 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1701: #res := ~retValue_acc~10; [2025-03-08 05:22:13,105 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1854: #res := ~retValue_acc~11; [2025-03-08 05:22:13,156 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2510: #res#1 := ~retValue_acc~21#1; [2025-03-08 05:22:13,157 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1897-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~13#1; [2025-03-08 05:22:13,187 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3185: #res := ~retValue_acc~25; [2025-03-08 05:22:13,440 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2391-1: stopRequestedInDirection__wrappee__weight_#res#1 := stopRequestedInDirection__wrappee__weight_~retValue_acc~18#1; [2025-03-08 05:22:13,440 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2420: #res#1 := ~retValue_acc~19#1; [2025-03-08 05:22:13,508 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2555: #res := ~retValue_acc~23; [2025-03-08 05:22:13,521 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3273: #res := ~retValue_acc~28; [2025-03-08 05:22:13,603 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2026-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~16#1; [2025-03-08 05:22:13,603 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2039-1: isIdle_#res#1 := isIdle_~retValue_acc~17#1; [2025-03-08 05:22:13,634 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3194-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~26#1; [2025-03-08 05:22:13,684 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1313: #res := ~retValue_acc~8; [2025-03-08 05:22:13,745 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L943-1: valid_product_#res#1 := valid_product_~retValue_acc~6#1; [2025-03-08 05:22:13,746 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L908-1: main_#res#1 := main_~retValue_acc~4#1; [2025-03-08 05:22:13,765 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1077: #res := ~retValue_acc~7; [2025-03-08 05:22:13,771 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1863: #res := ~retValue_acc~12; [2025-03-08 05:22:13,773 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1624: #res := ~retValue_acc~9; [2025-03-08 05:22:13,856 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2541-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~22#1; [2025-03-08 05:22:13,961 INFO L? ?]: Removed 441 outVars from TransFormulas that were not future-live. [2025-03-08 05:22:13,961 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:22:13,979 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:22:13,979 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:22:13,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:13 BoogieIcfgContainer [2025-03-08 05:22:13,979 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:22:13,983 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:22:13,983 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:22:13,986 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:22:13,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:22:12" (1/3) ... [2025-03-08 05:22:13,986 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c993f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:13, skipping insertion in model container [2025-03-08 05:22:13,986 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:12" (2/3) ... [2025-03-08 05:22:13,987 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c993f91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:13, skipping insertion in model container [2025-03-08 05:22:13,987 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:13" (3/3) ... [2025-03-08 05:22:13,987 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product20.cil.c [2025-03-08 05:22:13,997 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:22:14,000 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product20.cil.c that has 26 procedures, 543 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:22:14,041 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:22:14,048 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;@42f9662d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:22:14,048 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:22:14,056 INFO L276 IsEmpty]: Start isEmpty. Operand has 543 states, 419 states have (on average 1.6706443914081146) internal successors, (700), 437 states have internal predecessors, (700), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) [2025-03-08 05:22:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-08 05:22:14,066 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,067 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:14,067 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,071 INFO L85 PathProgramCache]: Analyzing trace with hash -366846023, now seen corresponding path program 1 times [2025-03-08 05:22:14,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424555787] [2025-03-08 05:22:14,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,152 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-08 05:22:14,204 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-08 05:22:14,204 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,204 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:14,437 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:14,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:14,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424555787] [2025-03-08 05:22:14,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424555787] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:14,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:14,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:14,442 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122006594] [2025-03-08 05:22:14,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:14,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:14,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:14,461 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:14,461 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:14,464 INFO L87 Difference]: Start difference. First operand has 543 states, 419 states have (on average 1.6706443914081146) internal successors, (700), 437 states have internal predecessors, (700), 97 states have call successors, (97), 25 states have call predecessors, (97), 25 states have return successors, (97), 94 states have call predecessors, (97), 97 states have call successors, (97) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:14,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,605 INFO L93 Difference]: Finished difference Result 1079 states and 1788 transitions. [2025-03-08 05:22:14,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:14,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2025-03-08 05:22:14,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,623 INFO L225 Difference]: With dead ends: 1079 [2025-03-08 05:22:14,624 INFO L226 Difference]: Without dead ends: 538 [2025-03-08 05:22:14,631 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:22:14,635 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 6 mSDsluCounter, 1750 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2628 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,636 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2628 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:14,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-08 05:22:14,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-03-08 05:22:14,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 415 states have (on average 1.6626506024096386) internal successors, (690), 432 states have internal predecessors, (690), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:14,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 883 transitions. [2025-03-08 05:22:14,710 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 883 transitions. Word has length 63 [2025-03-08 05:22:14,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,711 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 883 transitions. [2025-03-08 05:22:14,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:14,711 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 883 transitions. [2025-03-08 05:22:14,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-08 05:22:14,714 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,714 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:14,714 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:22:14,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,715 INFO L85 PathProgramCache]: Analyzing trace with hash 338449050, now seen corresponding path program 1 times [2025-03-08 05:22:14,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916213097] [2025-03-08 05:22:14,715 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,736 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-08 05:22:14,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-08 05:22:14,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:14,866 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:14,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:14,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916213097] [2025-03-08 05:22:14,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916213097] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:14,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:14,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:14,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588875617] [2025-03-08 05:22:14,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:14,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:14,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:14,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:14,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:14,869 INFO L87 Difference]: Start difference. First operand 538 states and 883 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:14,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,950 INFO L93 Difference]: Finished difference Result 1059 states and 1743 transitions. [2025-03-08 05:22:14,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:14,950 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2025-03-08 05:22:14,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,958 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:14,958 INFO L226 Difference]: Without dead ends: 538 [2025-03-08 05:22:14,960 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:14,960 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 4 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,962 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2600 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:14,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-08 05:22:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-03-08 05:22:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 415 states have (on average 1.6602409638554216) internal successors, (689), 432 states have internal predecessors, (689), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:14,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 882 transitions. [2025-03-08 05:22:14,996 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 882 transitions. Word has length 64 [2025-03-08 05:22:14,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,996 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 882 transitions. [2025-03-08 05:22:14,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 882 transitions. [2025-03-08 05:22:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-08 05:22:14,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,999 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:15,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:22:15,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,001 INFO L85 PathProgramCache]: Analyzing trace with hash 1053029174, now seen corresponding path program 1 times [2025-03-08 05:22:15,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461605604] [2025-03-08 05:22:15,001 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,015 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-08 05:22:15,022 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-08 05:22:15,024 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,024 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:15,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461605604] [2025-03-08 05:22:15,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461605604] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:15,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914717464] [2025-03-08 05:22:15,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:15,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:15,132 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,132 INFO L87 Difference]: Start difference. First operand 538 states and 882 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,203 INFO L93 Difference]: Finished difference Result 1059 states and 1742 transitions. [2025-03-08 05:22:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:15,203 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2025-03-08 05:22:15,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,210 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:15,210 INFO L226 Difference]: Without dead ends: 538 [2025-03-08 05:22:15,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,213 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 3 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,213 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2600 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:15,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-08 05:22:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-03-08 05:22:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 415 states have (on average 1.657831325301205) internal successors, (688), 432 states have internal predecessors, (688), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:15,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 881 transitions. [2025-03-08 05:22:15,239 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 881 transitions. Word has length 65 [2025-03-08 05:22:15,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,239 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 881 transitions. [2025-03-08 05:22:15,239 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,239 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 881 transitions. [2025-03-08 05:22:15,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-08 05:22:15,242 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,243 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:15,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:22:15,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,244 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2055445879, now seen corresponding path program 1 times [2025-03-08 05:22:15,244 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918122811] [2025-03-08 05:22:15,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-08 05:22:15,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-08 05:22:15,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,371 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:15,372 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,372 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918122811] [2025-03-08 05:22:15,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918122811] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,373 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:15,373 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176986497] [2025-03-08 05:22:15,373 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,373 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:15,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,373 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:15,373 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,373 INFO L87 Difference]: Start difference. First operand 538 states and 881 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,429 INFO L93 Difference]: Finished difference Result 1059 states and 1741 transitions. [2025-03-08 05:22:15,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:15,430 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2025-03-08 05:22:15,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,434 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:15,434 INFO L226 Difference]: Without dead ends: 538 [2025-03-08 05:22:15,436 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,436 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 2 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,437 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2600 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-08 05:22:15,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-03-08 05:22:15,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 415 states have (on average 1.655421686746988) internal successors, (687), 432 states have internal predecessors, (687), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:15,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 880 transitions. [2025-03-08 05:22:15,462 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 880 transitions. Word has length 66 [2025-03-08 05:22:15,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,463 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 880 transitions. [2025-03-08 05:22:15,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,464 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 880 transitions. [2025-03-08 05:22:15,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-08 05:22:15,464 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,464 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:15,465 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:22:15,465 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,465 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,465 INFO L85 PathProgramCache]: Analyzing trace with hash -904105293, now seen corresponding path program 1 times [2025-03-08 05:22:15,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325933094] [2025-03-08 05:22:15,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 05:22:15,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 05:22:15,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:15,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325933094] [2025-03-08 05:22:15,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325933094] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:15,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1462205287] [2025-03-08 05:22:15,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:15,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,568 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:15,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,568 INFO L87 Difference]: Start difference. First operand 538 states and 880 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,608 INFO L93 Difference]: Finished difference Result 1059 states and 1740 transitions. [2025-03-08 05:22:15,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:15,609 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2025-03-08 05:22:15,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,612 INFO L225 Difference]: With dead ends: 1059 [2025-03-08 05:22:15,612 INFO L226 Difference]: Without dead ends: 538 [2025-03-08 05:22:15,614 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:15,615 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 1 mSDsluCounter, 1731 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2600 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,615 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2600 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:15,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-08 05:22:15,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2025-03-08 05:22:15,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 415 states have (on average 1.653012048192771) internal successors, (686), 432 states have internal predecessors, (686), 97 states have call successors, (97), 26 states have call predecessors, (97), 25 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:15,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 879 transitions. [2025-03-08 05:22:15,641 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 879 transitions. Word has length 67 [2025-03-08 05:22:15,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,641 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 879 transitions. [2025-03-08 05:22:15,641 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:15,641 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 879 transitions. [2025-03-08 05:22:15,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 05:22:15,642 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,643 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:15,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:22:15,643 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,643 INFO L85 PathProgramCache]: Analyzing trace with hash -2130609068, now seen corresponding path program 1 times [2025-03-08 05:22:15,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075141215] [2025-03-08 05:22:15,643 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,656 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 05:22:15,662 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 05:22:15,662 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,662 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,787 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:15,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075141215] [2025-03-08 05:22:15,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075141215] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:22:15,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508380387] [2025-03-08 05:22:15,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:15,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,788 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:15,788 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:15,788 INFO L87 Difference]: Start difference. First operand 538 states and 879 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:15,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,897 INFO L93 Difference]: Finished difference Result 1070 states and 1757 transitions. [2025-03-08 05:22:15,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:15,898 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2025-03-08 05:22:15,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,902 INFO L225 Difference]: With dead ends: 1070 [2025-03-08 05:22:15,902 INFO L226 Difference]: Without dead ends: 553 [2025-03-08 05:22:15,904 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:15,905 INFO L435 NwaCegarLoop]: 866 mSDtfsCounter, 91 mSDsluCounter, 4245 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5111 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 [2025-03-08 05:22:15,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5111 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:15,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-08 05:22:15,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 551. [2025-03-08 05:22:15,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 425 states have (on average 1.6494117647058824) internal successors, (701), 444 states have internal predecessors, (701), 98 states have call successors, (98), 26 states have call predecessors, (98), 27 states have return successors, (100), 94 states have call predecessors, (100), 97 states have call successors, (100) [2025-03-08 05:22:15,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 899 transitions. [2025-03-08 05:22:15,928 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 899 transitions. Word has length 68 [2025-03-08 05:22:15,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,929 INFO L471 AbstractCegarLoop]: Abstraction has 551 states and 899 transitions. [2025-03-08 05:22:15,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:15,929 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 899 transitions. [2025-03-08 05:22:15,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-08 05:22:15,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,930 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:15,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:22:15,931 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1361439053, now seen corresponding path program 1 times [2025-03-08 05:22:15,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302636250] [2025-03-08 05:22:15,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,943 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-08 05:22:15,948 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-08 05:22:15,949 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,949 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:15,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302636250] [2025-03-08 05:22:16,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302636250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:16,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010789921] [2025-03-08 05:22:16,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:16,000 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:16,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:16,001 INFO L87 Difference]: Start difference. First operand 551 states and 899 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,049 INFO L93 Difference]: Finished difference Result 1077 states and 1768 transitions. [2025-03-08 05:22:16,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:16,050 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2025-03-08 05:22:16,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,053 INFO L225 Difference]: With dead ends: 1077 [2025-03-08 05:22:16,053 INFO L226 Difference]: Without dead ends: 547 [2025-03-08 05:22:16,055 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:22:16,055 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 1 mSDsluCounter, 1728 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2595 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,056 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2595 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:16,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-08 05:22:16,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 547. [2025-03-08 05:22:16,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 423 states have (on average 1.6501182033096926) internal successors, (698), 441 states have internal predecessors, (698), 97 states have call successors, (97), 26 states have call predecessors, (97), 26 states have return successors, (97), 93 states have call predecessors, (97), 96 states have call successors, (97) [2025-03-08 05:22:16,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 892 transitions. [2025-03-08 05:22:16,074 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 892 transitions. Word has length 68 [2025-03-08 05:22:16,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,074 INFO L471 AbstractCegarLoop]: Abstraction has 547 states and 892 transitions. [2025-03-08 05:22:16,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,075 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 892 transitions. [2025-03-08 05:22:16,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-08 05:22:16,076 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,076 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:16,076 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:22:16,076 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:16,077 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:16,077 INFO L85 PathProgramCache]: Analyzing trace with hash -709922566, now seen corresponding path program 1 times [2025-03-08 05:22:16,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:16,077 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031367250] [2025-03-08 05:22:16,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,077 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:16,090 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-08 05:22:16,095 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-08 05:22:16,096 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,096 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,183 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:16,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031367250] [2025-03-08 05:22:16,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031367250] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,183 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:16,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754272333] [2025-03-08 05:22:16,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,184 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:16,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,184 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:16,184 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:16,184 INFO L87 Difference]: Start difference. First operand 547 states and 892 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,393 INFO L93 Difference]: Finished difference Result 1120 states and 1840 transitions. [2025-03-08 05:22:16,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:16,394 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2025-03-08 05:22:16,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,397 INFO L225 Difference]: With dead ends: 1120 [2025-03-08 05:22:16,397 INFO L226 Difference]: Without dead ends: 579 [2025-03-08 05:22:16,400 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:16,401 INFO L435 NwaCegarLoop]: 841 mSDtfsCounter, 72 mSDsluCounter, 3285 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,401 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4126 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 05:22:16,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2025-03-08 05:22:16,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 552. [2025-03-08 05:22:16,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.6355140186915889) internal successors, (700), 445 states have internal predecessors, (700), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 893 transitions. [2025-03-08 05:22:16,419 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 893 transitions. Word has length 69 [2025-03-08 05:22:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,420 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 893 transitions. [2025-03-08 05:22:16,420 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,420 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 893 transitions. [2025-03-08 05:22:16,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-08 05:22:16,422 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,423 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:16,423 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:22:16,423 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:16,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:16,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1664565291, now seen corresponding path program 1 times [2025-03-08 05:22:16,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:16,424 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274284421] [2025-03-08 05:22:16,424 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:16,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-08 05:22:16,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-08 05:22:16,444 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,444 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,523 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:16,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274284421] [2025-03-08 05:22:16,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274284421] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:16,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306581517] [2025-03-08 05:22:16,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:16,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,525 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:16,525 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:16,525 INFO L87 Difference]: Start difference. First operand 552 states and 893 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,704 INFO L93 Difference]: Finished difference Result 1071 states and 1735 transitions. [2025-03-08 05:22:16,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:16,705 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2025-03-08 05:22:16,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,709 INFO L225 Difference]: With dead ends: 1071 [2025-03-08 05:22:16,709 INFO L226 Difference]: Without dead ends: 570 [2025-03-08 05:22:16,711 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:16,712 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 56 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4103 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:16,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-03-08 05:22:16,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 552. [2025-03-08 05:22:16,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.6261682242990654) internal successors, (696), 445 states have internal predecessors, (696), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:16,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 889 transitions. [2025-03-08 05:22:16,730 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 889 transitions. Word has length 70 [2025-03-08 05:22:16,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,731 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 889 transitions. [2025-03-08 05:22:16,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,731 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 889 transitions. [2025-03-08 05:22:16,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 05:22:16,732 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,732 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:16,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:22:16,732 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:16,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:16,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1369768355, now seen corresponding path program 1 times [2025-03-08 05:22:16,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:16,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22752698] [2025-03-08 05:22:16,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:16,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 05:22:16,752 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 05:22:16,752 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,752 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:16,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22752698] [2025-03-08 05:22:16,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22752698] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:16,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042979615] [2025-03-08 05:22:16,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:16,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:16,844 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:16,844 INFO L87 Difference]: Start difference. First operand 552 states and 889 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:16,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,989 INFO L93 Difference]: Finished difference Result 1071 states and 1731 transitions. [2025-03-08 05:22:16,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:16,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2025-03-08 05:22:16,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,994 INFO L225 Difference]: With dead ends: 1071 [2025-03-08 05:22:16,994 INFO L226 Difference]: Without dead ends: 570 [2025-03-08 05:22:16,996 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:16,996 INFO L435 NwaCegarLoop]: 829 mSDtfsCounter, 55 mSDsluCounter, 3269 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4098 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,996 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4098 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:16,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 570 states. [2025-03-08 05:22:17,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 570 to 552. [2025-03-08 05:22:17,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 552 states, 428 states have (on average 1.6168224299065421) internal successors, (692), 445 states have internal predecessors, (692), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:17,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 552 states to 552 states and 885 transitions. [2025-03-08 05:22:17,011 INFO L78 Accepts]: Start accepts. Automaton has 552 states and 885 transitions. Word has length 71 [2025-03-08 05:22:17,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,011 INFO L471 AbstractCegarLoop]: Abstraction has 552 states and 885 transitions. [2025-03-08 05:22:17,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,011 INFO L276 IsEmpty]: Start isEmpty. Operand 552 states and 885 transitions. [2025-03-08 05:22:17,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-08 05:22:17,012 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,012 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:17,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 05:22:17,012 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1171868428, now seen corresponding path program 1 times [2025-03-08 05:22:17,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866125895] [2025-03-08 05:22:17,013 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-08 05:22:17,027 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-08 05:22:17,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,111 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:17,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866125895] [2025-03-08 05:22:17,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866125895] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:17,112 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:22:17,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63548191] [2025-03-08 05:22:17,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:17,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:17,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:17,113 INFO L87 Difference]: Start difference. First operand 552 states and 885 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:17,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:17,175 INFO L93 Difference]: Finished difference Result 1062 states and 1713 transitions. [2025-03-08 05:22:17,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:17,176 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2025-03-08 05:22:17,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:17,179 INFO L225 Difference]: With dead ends: 1062 [2025-03-08 05:22:17,180 INFO L226 Difference]: Without dead ends: 540 [2025-03-08 05:22:17,181 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:17,182 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 94 mSDsluCounter, 4179 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5034 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:17,182 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5034 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:17,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2025-03-08 05:22:17,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2025-03-08 05:22:17,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 407 states have (on average 1.6093366093366093) internal successors, (655), 424 states have internal predecessors, (655), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:17,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 848 transitions. [2025-03-08 05:22:17,195 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 848 transitions. Word has length 71 [2025-03-08 05:22:17,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,196 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 848 transitions. [2025-03-08 05:22:17,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 848 transitions. [2025-03-08 05:22:17,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-08 05:22:17,197 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,197 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:17,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 05:22:17,197 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,197 INFO L85 PathProgramCache]: Analyzing trace with hash -278876754, now seen corresponding path program 1 times [2025-03-08 05:22:17,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399828885] [2025-03-08 05:22:17,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,207 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-08 05:22:17,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-08 05:22:17,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,272 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:17,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399828885] [2025-03-08 05:22:17,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399828885] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:17,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:17,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113438407] [2025-03-08 05:22:17,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:17,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,273 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:17,273 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:17,274 INFO L87 Difference]: Start difference. First operand 531 states and 848 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:17,351 INFO L93 Difference]: Finished difference Result 1041 states and 1676 transitions. [2025-03-08 05:22:17,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:17,351 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2025-03-08 05:22:17,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:17,355 INFO L225 Difference]: With dead ends: 1041 [2025-03-08 05:22:17,355 INFO L226 Difference]: Without dead ends: 540 [2025-03-08 05:22:17,356 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:17,357 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 39 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:17,357 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4103 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:17,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2025-03-08 05:22:17,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2025-03-08 05:22:17,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 407 states have (on average 1.606879606879607) internal successors, (654), 424 states have internal predecessors, (654), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:17,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 847 transitions. [2025-03-08 05:22:17,386 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 847 transitions. Word has length 72 [2025-03-08 05:22:17,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,386 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 847 transitions. [2025-03-08 05:22:17,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,386 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 847 transitions. [2025-03-08 05:22:17,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-08 05:22:17,388 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,388 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:17,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 05:22:17,388 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,388 INFO L85 PathProgramCache]: Analyzing trace with hash -155021376, now seen corresponding path program 1 times [2025-03-08 05:22:17,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71405575] [2025-03-08 05:22:17,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,397 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-08 05:22:17,402 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-08 05:22:17,403 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,403 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:17,462 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,462 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71405575] [2025-03-08 05:22:17,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71405575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:17,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:17,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165521003] [2025-03-08 05:22:17,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,463 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:17,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:17,463 INFO L87 Difference]: Start difference. First operand 531 states and 847 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:17,541 INFO L93 Difference]: Finished difference Result 1041 states and 1675 transitions. [2025-03-08 05:22:17,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:17,542 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2025-03-08 05:22:17,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:17,545 INFO L225 Difference]: With dead ends: 1041 [2025-03-08 05:22:17,545 INFO L226 Difference]: Without dead ends: 540 [2025-03-08 05:22:17,547 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:17,548 INFO L435 NwaCegarLoop]: 830 mSDtfsCounter, 38 mSDsluCounter, 3273 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4103 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:17,548 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4103 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:17,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2025-03-08 05:22:17,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 531. [2025-03-08 05:22:17,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 531 states, 407 states have (on average 1.6044226044226044) internal successors, (653), 424 states have internal predecessors, (653), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:17,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 846 transitions. [2025-03-08 05:22:17,561 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 846 transitions. Word has length 73 [2025-03-08 05:22:17,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,563 INFO L471 AbstractCegarLoop]: Abstraction has 531 states and 846 transitions. [2025-03-08 05:22:17,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,563 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 846 transitions. [2025-03-08 05:22:17,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-08 05:22:17,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,564 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, 1] [2025-03-08 05:22:17,564 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 05:22:17,564 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,564 INFO L85 PathProgramCache]: Analyzing trace with hash 55482161, now seen corresponding path program 1 times [2025-03-08 05:22:17,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66525699] [2025-03-08 05:22:17,565 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-08 05:22:17,579 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-08 05:22:17,579 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,579 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:17,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66525699] [2025-03-08 05:22:17,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66525699] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,621 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:17,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:17,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809561340] [2025-03-08 05:22:17,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:17,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:17,622 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:17,622 INFO L87 Difference]: Start difference. First operand 531 states and 846 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:17,677 INFO L93 Difference]: Finished difference Result 1028 states and 1654 transitions. [2025-03-08 05:22:17,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:17,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2025-03-08 05:22:17,677 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:17,680 INFO L225 Difference]: With dead ends: 1028 [2025-03-08 05:22:17,680 INFO L226 Difference]: Without dead ends: 533 [2025-03-08 05:22:17,683 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:17,683 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 16 mSDsluCounter, 1602 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2411 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:17,683 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2411 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:17,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 533 states. [2025-03-08 05:22:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 533 to 533. [2025-03-08 05:22:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 533 states, 409 states have (on average 1.5990220048899755) internal successors, (654), 426 states have internal predecessors, (654), 97 states have call successors, (97), 27 states have call predecessors, (97), 26 states have return successors, (96), 93 states have call predecessors, (96), 96 states have call successors, (96) [2025-03-08 05:22:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 533 states to 533 states and 847 transitions. [2025-03-08 05:22:17,697 INFO L78 Accepts]: Start accepts. Automaton has 533 states and 847 transitions. Word has length 74 [2025-03-08 05:22:17,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,698 INFO L471 AbstractCegarLoop]: Abstraction has 533 states and 847 transitions. [2025-03-08 05:22:17,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-08 05:22:17,698 INFO L276 IsEmpty]: Start isEmpty. Operand 533 states and 847 transitions. [2025-03-08 05:22:17,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-08 05:22:17,698 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,698 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:17,699 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 05:22:17,699 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1629213357, now seen corresponding path program 1 times [2025-03-08 05:22:17,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331648501] [2025-03-08 05:22:17,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-08 05:22:17,717 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-08 05:22:17,717 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,717 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-08 05:22:17,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331648501] [2025-03-08 05:22:17,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331648501] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:17,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 05:22:17,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205359667] [2025-03-08 05:22:17,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:17,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:17,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 05:22:17,833 INFO L87 Difference]: Start difference. First operand 533 states and 847 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:17,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:17,931 INFO L93 Difference]: Finished difference Result 1509 states and 2451 transitions. [2025-03-08 05:22:17,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:17,931 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2025-03-08 05:22:17,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:17,939 INFO L225 Difference]: With dead ends: 1509 [2025-03-08 05:22:17,939 INFO L226 Difference]: Without dead ends: 1019 [2025-03-08 05:22:17,942 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 05:22:17,943 INFO L435 NwaCegarLoop]: 912 mSDtfsCounter, 796 mSDsluCounter, 779 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 796 SdHoareTripleChecker+Valid, 1691 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:17,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [796 Valid, 1691 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:17,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2025-03-08 05:22:17,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 956. [2025-03-08 05:22:17,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 956 states, 740 states have (on average 1.6216216216216217) internal successors, (1200), 766 states have internal predecessors, (1200), 170 states have call successors, (170), 47 states have call predecessors, (170), 45 states have return successors, (175), 157 states have call predecessors, (175), 168 states have call successors, (175) [2025-03-08 05:22:17,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 956 states to 956 states and 1545 transitions. [2025-03-08 05:22:17,980 INFO L78 Accepts]: Start accepts. Automaton has 956 states and 1545 transitions. Word has length 75 [2025-03-08 05:22:17,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:17,980 INFO L471 AbstractCegarLoop]: Abstraction has 956 states and 1545 transitions. [2025-03-08 05:22:17,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-08 05:22:17,981 INFO L276 IsEmpty]: Start isEmpty. Operand 956 states and 1545 transitions. [2025-03-08 05:22:17,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-08 05:22:17,984 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:17,984 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] [2025-03-08 05:22:17,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-08 05:22:17,984 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,985 INFO L85 PathProgramCache]: Analyzing trace with hash -1391700857, now seen corresponding path program 1 times [2025-03-08 05:22:17,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105574195] [2025-03-08 05:22:17,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:18,009 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:18,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:18,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:18,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:18,245 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:22:18,246 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:18,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105574195] [2025-03-08 05:22:18,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105574195] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:18,246 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [607135235] [2025-03-08 05:22:18,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:18,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:18,246 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:18,248 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:18,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:22:18,365 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:18,496 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:18,496 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:18,496 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:18,502 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:18,507 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:18,549 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 05:22:18,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:18,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [607135235] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:18,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:18,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [12] total 13 [2025-03-08 05:22:18,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278767865] [2025-03-08 05:22:18,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:18,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:18,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:18,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:18,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=132, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:18,550 INFO L87 Difference]: Start difference. First operand 956 states and 1545 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) [2025-03-08 05:22:18,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:18,628 INFO L93 Difference]: Finished difference Result 2770 states and 4583 transitions. [2025-03-08 05:22:18,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:18,629 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 [2025-03-08 05:22:18,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:18,640 INFO L225 Difference]: With dead ends: 2770 [2025-03-08 05:22:18,641 INFO L226 Difference]: Without dead ends: 1858 [2025-03-08 05:22:18,646 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 [2025-03-08 05:22:18,646 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 828 mSDsluCounter, 782 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 828 SdHoareTripleChecker+Valid, 1628 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:18,646 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [828 Valid, 1628 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:18,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2025-03-08 05:22:18,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1846. [2025-03-08 05:22:18,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1846 states, 1431 states have (on average 1.6331236897274632) internal successors, (2337), 1480 states have internal predecessors, (2337), 327 states have call successors, (327), 89 states have call predecessors, (327), 87 states have return successors, (366), 306 states have call predecessors, (366), 323 states have call successors, (366) [2025-03-08 05:22:18,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1846 states to 1846 states and 3030 transitions. [2025-03-08 05:22:18,717 INFO L78 Accepts]: Start accepts. Automaton has 1846 states and 3030 transitions. Word has length 127 [2025-03-08 05:22:18,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:18,717 INFO L471 AbstractCegarLoop]: Abstraction has 1846 states and 3030 transitions. [2025-03-08 05:22:18,718 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) [2025-03-08 05:22:18,718 INFO L276 IsEmpty]: Start isEmpty. Operand 1846 states and 3030 transitions. [2025-03-08 05:22:18,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-08 05:22:18,720 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:18,720 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] [2025-03-08 05:22:18,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-08 05:22:18,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-08 05:22:18,921 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:18,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:18,922 INFO L85 PathProgramCache]: Analyzing trace with hash 618402984, now seen corresponding path program 1 times [2025-03-08 05:22:18,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:18,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51296183] [2025-03-08 05:22:18,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:18,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:18,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:18,940 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:18,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:18,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:19,143 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:22:19,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51296183] [2025-03-08 05:22:19,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51296183] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:19,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822600331] [2025-03-08 05:22:19,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:19,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:19,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:19,145 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:19,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:22:19,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:19,389 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:19,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:19,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:19,393 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-08 05:22:19,397 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:19,534 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:19,534 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:19,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822600331] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:19,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:19,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2025-03-08 05:22:19,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566521906] [2025-03-08 05:22:19,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:19,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:19,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:19,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:19,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:19,535 INFO L87 Difference]: Start difference. First operand 1846 states and 3030 transitions. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:19,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:19,987 INFO L93 Difference]: Finished difference Result 4685 states and 7728 transitions. [2025-03-08 05:22:19,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:19,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 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 127 [2025-03-08 05:22:19,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:20,003 INFO L225 Difference]: With dead ends: 4685 [2025-03-08 05:22:20,003 INFO L226 Difference]: Without dead ends: 2882 [2025-03-08 05:22:20,012 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-03-08 05:22:20,013 INFO L435 NwaCegarLoop]: 1109 mSDtfsCounter, 782 mSDsluCounter, 3248 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 784 SdHoareTripleChecker+Valid, 4357 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:20,013 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [784 Valid, 4357 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 05:22:20,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2882 states. [2025-03-08 05:22:20,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2882 to 2880. [2025-03-08 05:22:20,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2880 states, 2231 states have (on average 1.600627521290901) internal successors, (3571), 2284 states have internal predecessors, (3571), 501 states have call successors, (501), 151 states have call predecessors, (501), 147 states have return successors, (632), 476 states have call predecessors, (632), 493 states have call successors, (632) [2025-03-08 05:22:20,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2880 states to 2880 states and 4704 transitions. [2025-03-08 05:22:20,135 INFO L78 Accepts]: Start accepts. Automaton has 2880 states and 4704 transitions. Word has length 127 [2025-03-08 05:22:20,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:20,135 INFO L471 AbstractCegarLoop]: Abstraction has 2880 states and 4704 transitions. [2025-03-08 05:22:20,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:20,135 INFO L276 IsEmpty]: Start isEmpty. Operand 2880 states and 4704 transitions. [2025-03-08 05:22:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-08 05:22:20,139 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:20,139 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:20,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 05:22:20,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-08 05:22:20,343 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:20,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:20,344 INFO L85 PathProgramCache]: Analyzing trace with hash 592445354, now seen corresponding path program 1 times [2025-03-08 05:22:20,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:20,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585269770] [2025-03-08 05:22:20,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:20,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:20,356 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:20,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:20,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:20,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:20,474 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:20,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:20,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585269770] [2025-03-08 05:22:20,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585269770] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:20,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580104892] [2025-03-08 05:22:20,475 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:20,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:20,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:20,477 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:20,478 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:22:20,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-08 05:22:20,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-08 05:22:20,755 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:20,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:20,760 INFO L256 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:20,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:20,851 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:22:20,851 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:20,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580104892] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:20,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:20,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:20,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359546095] [2025-03-08 05:22:20,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:20,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:20,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:20,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:20,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:20,852 INFO L87 Difference]: Start difference. First operand 2880 states and 4704 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:21,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:21,388 INFO L93 Difference]: Finished difference Result 5781 states and 9771 transitions. [2025-03-08 05:22:21,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:21,389 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 128 [2025-03-08 05:22:21,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:21,408 INFO L225 Difference]: With dead ends: 5781 [2025-03-08 05:22:21,408 INFO L226 Difference]: Without dead ends: 2944 [2025-03-08 05:22:21,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:21,424 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 776 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 445 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 2044 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 [2025-03-08 05:22:21,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 2044 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 445 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:21,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2025-03-08 05:22:21,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 2944. [2025-03-08 05:22:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2944 states, 2287 states have (on average 1.6034105815478794) internal successors, (3667), 2340 states have internal predecessors, (3667), 501 states have call successors, (501), 159 states have call predecessors, (501), 155 states have return successors, (640), 476 states have call predecessors, (640), 493 states have call successors, (640) [2025-03-08 05:22:21,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2944 states to 2944 states and 4808 transitions. [2025-03-08 05:22:21,535 INFO L78 Accepts]: Start accepts. Automaton has 2944 states and 4808 transitions. Word has length 128 [2025-03-08 05:22:21,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:21,535 INFO L471 AbstractCegarLoop]: Abstraction has 2944 states and 4808 transitions. [2025-03-08 05:22:21,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:21,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2944 states and 4808 transitions. [2025-03-08 05:22:21,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2025-03-08 05:22:21,539 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:21,539 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:21,549 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:21,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-08 05:22:21,741 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:21,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:21,741 INFO L85 PathProgramCache]: Analyzing trace with hash 439386921, now seen corresponding path program 1 times [2025-03-08 05:22:21,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:21,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988913768] [2025-03-08 05:22:21,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:21,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:21,755 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 05:22:21,761 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 05:22:21,762 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:21,762 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:21,832 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-08 05:22:21,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:21,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988913768] [2025-03-08 05:22:21,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988913768] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:21,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1375090051] [2025-03-08 05:22:21,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:21,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:21,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:21,835 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:21,836 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:22:21,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 131 statements into 1 equivalence classes. [2025-03-08 05:22:22,090 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 131 of 131 statements. [2025-03-08 05:22:22,090 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:22,090 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:22,095 INFO L256 TraceCheckSpWp]: Trace formula consists of 1454 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:22,098 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:22,202 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 05:22:22,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:22,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1375090051] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:22,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:22,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:22,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290699239] [2025-03-08 05:22:22,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:22,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:22,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:22,207 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:22,207 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:22,207 INFO L87 Difference]: Start difference. First operand 2944 states and 4808 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:22,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:22,713 INFO L93 Difference]: Finished difference Result 5909 states and 9955 transitions. [2025-03-08 05:22:22,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:22,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 131 [2025-03-08 05:22:22,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:22,735 INFO L225 Difference]: With dead ends: 5909 [2025-03-08 05:22:22,735 INFO L226 Difference]: Without dead ends: 3008 [2025-03-08 05:22:22,752 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 129 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:22,753 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 767 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 444 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 774 SdHoareTripleChecker+Valid, 2041 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:22,753 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [774 Valid, 2041 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 444 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:22,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3008 states. [2025-03-08 05:22:22,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3008 to 3008. [2025-03-08 05:22:22,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 2343 states have (on average 1.606060606060606) internal successors, (3763), 2396 states have internal predecessors, (3763), 501 states have call successors, (501), 167 states have call predecessors, (501), 163 states have return successors, (648), 476 states have call predecessors, (648), 493 states have call successors, (648) [2025-03-08 05:22:22,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 4912 transitions. [2025-03-08 05:22:22,879 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 4912 transitions. Word has length 131 [2025-03-08 05:22:22,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:22,879 INFO L471 AbstractCegarLoop]: Abstraction has 3008 states and 4912 transitions. [2025-03-08 05:22:22,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:22,879 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 4912 transitions. [2025-03-08 05:22:22,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2025-03-08 05:22:22,882 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:22,883 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:22,890 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:23,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:23,083 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:23,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:23,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1257534663, now seen corresponding path program 1 times [2025-03-08 05:22:23,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:23,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278149535] [2025-03-08 05:22:23,085 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:23,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:23,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-08 05:22:23,106 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-08 05:22:23,106 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:23,106 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-03-08 05:22:23,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:23,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278149535] [2025-03-08 05:22:23,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278149535] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:23,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1438276777] [2025-03-08 05:22:23,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:23,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:23,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:23,184 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:23,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 05:22:23,290 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 134 statements into 1 equivalence classes. [2025-03-08 05:22:23,405 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 134 of 134 statements. [2025-03-08 05:22:23,405 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:23,405 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:23,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 1457 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:23,412 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:23,499 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 05:22:23,501 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:23,501 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1438276777] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:23,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:23,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:23,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321358158] [2025-03-08 05:22:23,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:23,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:23,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:23,502 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:23,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:23,502 INFO L87 Difference]: Start difference. First operand 3008 states and 4912 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:24,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:24,024 INFO L93 Difference]: Finished difference Result 6037 states and 10139 transitions. [2025-03-08 05:22:24,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:24,024 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 134 [2025-03-08 05:22:24,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:24,044 INFO L225 Difference]: With dead ends: 6037 [2025-03-08 05:22:24,044 INFO L226 Difference]: Without dead ends: 3072 [2025-03-08 05:22:24,056 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:24,057 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 771 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 443 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 781 SdHoareTripleChecker+Valid, 2038 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:24,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [781 Valid, 2038 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 443 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:24,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3072 states. [2025-03-08 05:22:24,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3072 to 3072. [2025-03-08 05:22:24,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3072 states, 2399 states have (on average 1.6085869112130053) internal successors, (3859), 2452 states have internal predecessors, (3859), 501 states have call successors, (501), 175 states have call predecessors, (501), 171 states have return successors, (656), 476 states have call predecessors, (656), 493 states have call successors, (656) [2025-03-08 05:22:24,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3072 states to 3072 states and 5016 transitions. [2025-03-08 05:22:24,162 INFO L78 Accepts]: Start accepts. Automaton has 3072 states and 5016 transitions. Word has length 134 [2025-03-08 05:22:24,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:24,163 INFO L471 AbstractCegarLoop]: Abstraction has 3072 states and 5016 transitions. [2025-03-08 05:22:24,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:24,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3072 states and 5016 transitions. [2025-03-08 05:22:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2025-03-08 05:22:24,168 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:24,168 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:24,176 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:24,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:24,373 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:24,374 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:24,374 INFO L85 PathProgramCache]: Analyzing trace with hash -202396032, now seen corresponding path program 1 times [2025-03-08 05:22:24,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:24,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51826617] [2025-03-08 05:22:24,375 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:24,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:24,387 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-08 05:22:24,393 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-08 05:22:24,393 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:24,393 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-08 05:22:24,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:24,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [51826617] [2025-03-08 05:22:24,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [51826617] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:24,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832756776] [2025-03-08 05:22:24,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:24,477 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:24,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:24,479 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:24,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 05:22:24,589 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 137 statements into 1 equivalence classes. [2025-03-08 05:22:24,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 137 of 137 statements. [2025-03-08 05:22:24,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:24,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:24,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 1460 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:24,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:24,790 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:24,790 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:24,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832756776] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:24,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:24,790 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:24,791 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452840656] [2025-03-08 05:22:24,791 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:24,791 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:24,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:24,791 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:24,791 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:24,791 INFO L87 Difference]: Start difference. First operand 3072 states and 5016 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:25,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:25,251 INFO L93 Difference]: Finished difference Result 6165 states and 10323 transitions. [2025-03-08 05:22:25,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:25,252 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 137 [2025-03-08 05:22:25,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:25,271 INFO L225 Difference]: With dead ends: 6165 [2025-03-08 05:22:25,271 INFO L226 Difference]: Without dead ends: 3136 [2025-03-08 05:22:25,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:25,285 INFO L435 NwaCegarLoop]: 799 mSDtfsCounter, 765 mSDsluCounter, 1236 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 2035 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:25,285 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 2035 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:25,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3136 states. [2025-03-08 05:22:25,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3136 to 3136. [2025-03-08 05:22:25,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 2455 states have (on average 1.6109979633401221) internal successors, (3955), 2508 states have internal predecessors, (3955), 501 states have call successors, (501), 183 states have call predecessors, (501), 179 states have return successors, (664), 476 states have call predecessors, (664), 493 states have call successors, (664) [2025-03-08 05:22:25,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 5120 transitions. [2025-03-08 05:22:25,403 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 5120 transitions. Word has length 137 [2025-03-08 05:22:25,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:25,403 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 5120 transitions. [2025-03-08 05:22:25,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 4 states have internal predecessors, (91), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-08 05:22:25,404 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 5120 transitions. [2025-03-08 05:22:25,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 05:22:25,407 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:25,407 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:25,415 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:25,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:25,608 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:25,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:25,609 INFO L85 PathProgramCache]: Analyzing trace with hash -1347719324, now seen corresponding path program 1 times [2025-03-08 05:22:25,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:25,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832924608] [2025-03-08 05:22:25,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:25,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:25,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:25,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:25,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:25,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:25,799 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:22:25,799 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832924608] [2025-03-08 05:22:25,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832924608] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:25,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001907487] [2025-03-08 05:22:25,800 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:25,800 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:25,800 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:25,802 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:25,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 05:22:25,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:26,015 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:26,015 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:26,015 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:26,019 INFO L256 TraceCheckSpWp]: Trace formula consists of 1463 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 05:22:26,045 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:26,168 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 05:22:26,169 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:26,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001907487] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:26,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:26,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-08 05:22:26,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368569518] [2025-03-08 05:22:26,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:26,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:26,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:26,170 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:26,170 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:22:26,170 INFO L87 Difference]: Start difference. First operand 3136 states and 5120 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-08 05:22:27,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:27,501 INFO L93 Difference]: Finished difference Result 6477 states and 10597 transitions. [2025-03-08 05:22:27,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:27,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) Word has length 140 [2025-03-08 05:22:27,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:27,531 INFO L225 Difference]: With dead ends: 6477 [2025-03-08 05:22:27,532 INFO L226 Difference]: Without dead ends: 3389 [2025-03-08 05:22:27,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:27,546 INFO L435 NwaCegarLoop]: 403 mSDtfsCounter, 1987 mSDsluCounter, 457 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 513 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 860 SdHoareTripleChecker+Invalid, 2175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 513 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:27,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2094 Valid, 860 Invalid, 2175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [513 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-08 05:22:27,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2025-03-08 05:22:27,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 3135. [2025-03-08 05:22:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3135 states, 2349 states have (on average 1.5704555129842486) internal successors, (3689), 2440 states have internal predecessors, (3689), 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) [2025-03-08 05:22:27,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 5041 transitions. [2025-03-08 05:22:27,697 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 5041 transitions. Word has length 140 [2025-03-08 05:22:27,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:27,698 INFO L471 AbstractCegarLoop]: Abstraction has 3135 states and 5041 transitions. [2025-03-08 05:22:27,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (17), 5 states have call predecessors, (17), 5 states have return successors, (16), 6 states have call predecessors, (16), 6 states have call successors, (16) [2025-03-08 05:22:27,698 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 5041 transitions. [2025-03-08 05:22:27,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-03-08 05:22:27,701 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:27,701 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:27,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:27,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:27,902 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:27,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash 1165748037, now seen corresponding path program 1 times [2025-03-08 05:22:27,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:27,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665363612] [2025-03-08 05:22:27,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:27,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:27,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:27,920 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:27,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:27,921 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:28,100 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2025-03-08 05:22:28,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665363612] [2025-03-08 05:22:28,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665363612] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:28,100 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075865830] [2025-03-08 05:22:28,100 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:28,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:28,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:28,102 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:28,104 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 05:22:28,215 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-03-08 05:22:28,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-03-08 05:22:28,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:28,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:28,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 1466 conjuncts, 19 conjuncts are in the unsatisfiable core [2025-03-08 05:22:28,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:28,432 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 05:22:28,432 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:28,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075865830] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:28,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:28,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2025-03-08 05:22:28,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510677498] [2025-03-08 05:22:28,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:28,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:22:28,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:28,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:22:28,433 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=211, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:28,433 INFO L87 Difference]: Start difference. First operand 3135 states and 5041 transitions. Second operand has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-08 05:22:30,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:30,702 INFO L93 Difference]: Finished difference Result 7304 states and 11832 transitions. [2025-03-08 05:22:30,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-03-08 05:22:30,702 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 140 [2025-03-08 05:22:30,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:30,724 INFO L225 Difference]: With dead ends: 7304 [2025-03-08 05:22:30,724 INFO L226 Difference]: Without dead ends: 4214 [2025-03-08 05:22:30,736 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=661, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:22:30,737 INFO L435 NwaCegarLoop]: 393 mSDtfsCounter, 2306 mSDsluCounter, 1732 mSDsCounter, 0 mSdLazyCounter, 4762 mSolverCounterSat, 542 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2400 SdHoareTripleChecker+Valid, 2125 SdHoareTripleChecker+Invalid, 5304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 542 IncrementalHoareTripleChecker+Valid, 4762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:30,737 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2400 Valid, 2125 Invalid, 5304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [542 Valid, 4762 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2025-03-08 05:22:30,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4214 states. [2025-03-08 05:22:30,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4214 to 3661. [2025-03-08 05:22:30,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3661 states, 2741 states have (on average 1.5691353520612914) internal successors, (4301), 2854 states have internal predecessors, (4301), 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) [2025-03-08 05:22:30,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3661 states to 3661 states and 5888 transitions. [2025-03-08 05:22:30,926 INFO L78 Accepts]: Start accepts. Automaton has 3661 states and 5888 transitions. Word has length 140 [2025-03-08 05:22:30,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:30,926 INFO L471 AbstractCegarLoop]: Abstraction has 3661 states and 5888 transitions. [2025-03-08 05:22:30,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.125) internal successors, (97), 8 states have internal predecessors, (97), 6 states have call successors, (16), 4 states have call predecessors, (16), 5 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2025-03-08 05:22:30,926 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 5888 transitions. [2025-03-08 05:22:30,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-08 05:22:30,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:30,930 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:30,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:31,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-08 05:22:31,131 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:31,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:31,132 INFO L85 PathProgramCache]: Analyzing trace with hash 728082143, now seen corresponding path program 1 times [2025-03-08 05:22:31,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:31,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477114483] [2025-03-08 05:22:31,132 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:31,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:31,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 05:22:31,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 05:22:31,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:31,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:31,301 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:22:31,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:31,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477114483] [2025-03-08 05:22:31,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477114483] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:31,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080452569] [2025-03-08 05:22:31,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:31,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:31,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:31,303 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:31,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 05:22:31,412 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-08 05:22:31,517 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-08 05:22:31,517 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:31,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:31,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-08 05:22:31,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:31,625 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:31,625 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:31,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080452569] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:31,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:31,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:22:31,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601395115] [2025-03-08 05:22:31,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:31,626 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:31,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:31,626 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:31,626 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:31,626 INFO L87 Difference]: Start difference. First operand 3661 states and 5888 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-08 05:22:34,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:34,444 INFO L93 Difference]: Finished difference Result 9989 states and 16393 transitions. [2025-03-08 05:22:34,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-08 05:22:34,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2025-03-08 05:22:34,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:34,476 INFO L225 Difference]: With dead ends: 9989 [2025-03-08 05:22:34,476 INFO L226 Difference]: Without dead ends: 6373 [2025-03-08 05:22:34,491 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-03-08 05:22:34,492 INFO L435 NwaCegarLoop]: 566 mSDtfsCounter, 2606 mSDsluCounter, 1563 mSDsCounter, 0 mSdLazyCounter, 5747 mSolverCounterSat, 676 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2704 SdHoareTripleChecker+Valid, 2129 SdHoareTripleChecker+Invalid, 6423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 676 IncrementalHoareTripleChecker+Valid, 5747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:34,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2704 Valid, 2129 Invalid, 6423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [676 Valid, 5747 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2025-03-08 05:22:34,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6373 states. [2025-03-08 05:22:34,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6373 to 5775. [2025-03-08 05:22:34,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5775 states, 4326 states have (on average 1.5677300046232086) internal successors, (6782), 4512 states have internal predecessors, (6782), 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) [2025-03-08 05:22:34,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5775 states to 5775 states and 9374 transitions. [2025-03-08 05:22:34,732 INFO L78 Accepts]: Start accepts. Automaton has 5775 states and 9374 transitions. Word has length 142 [2025-03-08 05:22:34,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:34,733 INFO L471 AbstractCegarLoop]: Abstraction has 5775 states and 9374 transitions. [2025-03-08 05:22:34,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-08 05:22:34,733 INFO L276 IsEmpty]: Start isEmpty. Operand 5775 states and 9374 transitions. [2025-03-08 05:22:34,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 05:22:34,736 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:34,736 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:34,744 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:34,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-08 05:22:34,937 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:34,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:34,937 INFO L85 PathProgramCache]: Analyzing trace with hash -2004978847, now seen corresponding path program 1 times [2025-03-08 05:22:34,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:34,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510844485] [2025-03-08 05:22:34,938 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:34,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:34,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:22:34,954 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:22:34,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:34,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:22:35,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510844485] [2025-03-08 05:22:35,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510844485] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:35,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1100827923] [2025-03-08 05:22:35,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:35,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:35,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:35,123 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:35,125 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 05:22:35,235 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:22:35,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:22:35,324 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:35,324 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:35,328 INFO L256 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:22:35,330 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:35,340 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:35,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:35,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1100827923] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:35,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:35,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-03-08 05:22:35,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843183748] [2025-03-08 05:22:35,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:35,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:35,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:35,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:35,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:35,342 INFO L87 Difference]: Start difference. First operand 5775 states and 9374 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:22:35,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:35,597 INFO L93 Difference]: Finished difference Result 13636 states and 22422 transitions. [2025-03-08 05:22:35,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:35,597 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-08 05:22:35,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:35,640 INFO L225 Difference]: With dead ends: 13636 [2025-03-08 05:22:35,640 INFO L226 Difference]: Without dead ends: 7910 [2025-03-08 05:22:35,665 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:35,666 INFO L435 NwaCegarLoop]: 1504 mSDtfsCounter, 790 mSDsluCounter, 819 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2323 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:35,666 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2323 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:35,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7910 states. [2025-03-08 05:22:35,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7910 to 5763. [2025-03-08 05:22:35,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5763 states, 4318 states have (on average 1.5669291338582678) internal successors, (6766), 4500 states have internal predecessors, (6766), 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) [2025-03-08 05:22:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5763 states to 5763 states and 9322 transitions. [2025-03-08 05:22:35,946 INFO L78 Accepts]: Start accepts. Automaton has 5763 states and 9322 transitions. Word has length 147 [2025-03-08 05:22:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:35,948 INFO L471 AbstractCegarLoop]: Abstraction has 5763 states and 9322 transitions. [2025-03-08 05:22:35,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:22:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 5763 states and 9322 transitions. [2025-03-08 05:22:35,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-08 05:22:35,951 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:35,951 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:35,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:36,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-08 05:22:36,153 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:36,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:36,154 INFO L85 PathProgramCache]: Analyzing trace with hash -1675213086, now seen corresponding path program 1 times [2025-03-08 05:22:36,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:36,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916251106] [2025-03-08 05:22:36,155 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:36,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:36,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:22:36,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:22:36,171 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:36,171 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:36,366 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-08 05:22:36,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916251106] [2025-03-08 05:22:36,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916251106] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:36,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [170628937] [2025-03-08 05:22:36,367 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:36,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:36,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:36,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:36,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 05:22:36,482 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-08 05:22:36,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-08 05:22:36,577 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:36,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:36,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-08 05:22:36,584 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:36,659 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:36,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [170628937] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:36,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:36,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-08 05:22:36,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136040410] [2025-03-08 05:22:36,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:36,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:36,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:36,664 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:36,664 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:22:36,664 INFO L87 Difference]: Start difference. First operand 5763 states and 9322 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:22:36,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:36,916 INFO L93 Difference]: Finished difference Result 5765 states and 9323 transitions. [2025-03-08 05:22:36,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:36,917 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-08 05:22:36,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:36,951 INFO L225 Difference]: With dead ends: 5765 [2025-03-08 05:22:36,951 INFO L226 Difference]: Without dead ends: 5763 [2025-03-08 05:22:36,957 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:36,957 INFO L435 NwaCegarLoop]: 913 mSDtfsCounter, 352 mSDsluCounter, 2737 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 3650 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:36,957 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 3650 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:36,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5763 states. [2025-03-08 05:22:37,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5763 to 5763. [2025-03-08 05:22:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5763 states, 4318 states have (on average 1.5602130616025938) internal successors, (6737), 4500 states have internal predecessors, (6737), 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) [2025-03-08 05:22:37,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5763 states to 5763 states and 9293 transitions. [2025-03-08 05:22:37,309 INFO L78 Accepts]: Start accepts. Automaton has 5763 states and 9293 transitions. Word has length 147 [2025-03-08 05:22:37,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:37,309 INFO L471 AbstractCegarLoop]: Abstraction has 5763 states and 9293 transitions. [2025-03-08 05:22:37,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-08 05:22:37,311 INFO L276 IsEmpty]: Start isEmpty. Operand 5763 states and 9293 transitions. [2025-03-08 05:22:37,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-03-08 05:22:37,316 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:37,317 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:37,325 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 05:22:37,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-08 05:22:37,519 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:37,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:37,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1364668856, now seen corresponding path program 1 times [2025-03-08 05:22:37,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:37,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778159155] [2025-03-08 05:22:37,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:37,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:37,535 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-08 05:22:37,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-08 05:22:37,544 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:37,544 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:37,793 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-08 05:22:37,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778159155] [2025-03-08 05:22:37,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778159155] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:37,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95695026] [2025-03-08 05:22:37,793 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:37,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:37,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:37,796 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:37,797 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 05:22:37,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-08 05:22:38,010 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-08 05:22:38,010 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:38,010 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:38,015 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:38,018 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:38,039 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:22:38,039 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:38,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95695026] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:38,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:38,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:38,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333503547] [2025-03-08 05:22:38,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:38,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:38,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:38,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:38,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:38,040 INFO L87 Difference]: Start difference. First operand 5763 states and 9293 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:38,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:38,349 INFO L93 Difference]: Finished difference Result 11751 states and 19196 transitions. [2025-03-08 05:22:38,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:38,350 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2025-03-08 05:22:38,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:38,395 INFO L225 Difference]: With dead ends: 11751 [2025-03-08 05:22:38,395 INFO L226 Difference]: Without dead ends: 6033 [2025-03-08 05:22:38,415 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:38,416 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 144 mSDsluCounter, 1509 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2275 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:38,416 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2275 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:38,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6033 states. [2025-03-08 05:22:38,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6033 to 5997. [2025-03-08 05:22:38,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5997 states, 4546 states have (on average 1.5783106027276728) internal successors, (7175), 4728 states have internal predecessors, (7175), 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) [2025-03-08 05:22:38,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5997 states to 5997 states and 9731 transitions. [2025-03-08 05:22:38,651 INFO L78 Accepts]: Start accepts. Automaton has 5997 states and 9731 transitions. Word has length 170 [2025-03-08 05:22:38,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:38,652 INFO L471 AbstractCegarLoop]: Abstraction has 5997 states and 9731 transitions. [2025-03-08 05:22:38,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:38,652 INFO L276 IsEmpty]: Start isEmpty. Operand 5997 states and 9731 transitions. [2025-03-08 05:22:38,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-08 05:22:38,657 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:38,657 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:38,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:38,857 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-08 05:22:38,858 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:38,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:38,858 INFO L85 PathProgramCache]: Analyzing trace with hash 1787834534, now seen corresponding path program 1 times [2025-03-08 05:22:38,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:38,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578475756] [2025-03-08 05:22:38,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:38,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:38,873 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-08 05:22:38,879 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-08 05:22:38,879 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:38,879 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 05:22:39,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:39,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578475756] [2025-03-08 05:22:39,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578475756] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:39,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608596161] [2025-03-08 05:22:39,078 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:39,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:39,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:39,080 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:39,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 05:22:39,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-08 05:22:39,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-08 05:22:39,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:39,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:39,310 INFO L256 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:39,314 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:39,340 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 05:22:39,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:39,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608596161] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:39,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:39,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:39,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010724831] [2025-03-08 05:22:39,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:39,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:39,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:39,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:39,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:39,342 INFO L87 Difference]: Start difference. First operand 5997 states and 9731 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:39,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:39,608 INFO L93 Difference]: Finished difference Result 12237 states and 20072 transitions. [2025-03-08 05:22:39,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:39,608 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2025-03-08 05:22:39,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:39,641 INFO L225 Difference]: With dead ends: 12237 [2025-03-08 05:22:39,642 INFO L226 Difference]: Without dead ends: 6285 [2025-03-08 05:22:39,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:39,664 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 142 mSDsluCounter, 1507 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2272 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:39,664 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2272 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:39,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6285 states. [2025-03-08 05:22:39,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6285 to 6231. [2025-03-08 05:22:39,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6231 states, 4774 states have (on average 1.5946795140343528) internal successors, (7613), 4956 states have internal predecessors, (7613), 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) [2025-03-08 05:22:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6231 states to 6231 states and 10169 transitions. [2025-03-08 05:22:39,922 INFO L78 Accepts]: Start accepts. Automaton has 6231 states and 10169 transitions. Word has length 175 [2025-03-08 05:22:39,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:39,922 INFO L471 AbstractCegarLoop]: Abstraction has 6231 states and 10169 transitions. [2025-03-08 05:22:39,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:39,922 INFO L276 IsEmpty]: Start isEmpty. Operand 6231 states and 10169 transitions. [2025-03-08 05:22:39,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-08 05:22:39,926 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:39,926 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:39,934 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-08 05:22:40,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-08 05:22:40,127 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:40,127 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:40,128 INFO L85 PathProgramCache]: Analyzing trace with hash 1637963718, now seen corresponding path program 1 times [2025-03-08 05:22:40,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:40,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611734266] [2025-03-08 05:22:40,128 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:40,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:40,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 05:22:40,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 05:22:40,148 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:40,148 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:40,319 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-08 05:22:40,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:40,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611734266] [2025-03-08 05:22:40,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611734266] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:40,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15410289] [2025-03-08 05:22:40,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:40,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:40,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:40,322 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:40,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-08 05:22:40,450 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-08 05:22:40,565 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-08 05:22:40,565 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:40,565 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:40,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:40,573 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:22:40,598 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:40,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15410289] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:40,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:40,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:40,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439458604] [2025-03-08 05:22:40,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:40,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:40,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:40,599 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:40,600 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:40,600 INFO L87 Difference]: Start difference. First operand 6231 states and 10169 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:40,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:40,876 INFO L93 Difference]: Finished difference Result 12723 states and 20948 transitions. [2025-03-08 05:22:40,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:40,876 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2025-03-08 05:22:40,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:40,911 INFO L225 Difference]: With dead ends: 12723 [2025-03-08 05:22:40,911 INFO L226 Difference]: Without dead ends: 6537 [2025-03-08 05:22:40,934 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:40,934 INFO L435 NwaCegarLoop]: 764 mSDtfsCounter, 140 mSDsluCounter, 1505 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2269 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:40,935 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2269 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:40,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6537 states. [2025-03-08 05:22:41,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6537 to 6465. [2025-03-08 05:22:41,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6465 states, 5002 states have (on average 1.6095561775289884) internal successors, (8051), 5184 states have internal predecessors, (8051), 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) [2025-03-08 05:22:41,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6465 states to 6465 states and 10607 transitions. [2025-03-08 05:22:41,281 INFO L78 Accepts]: Start accepts. Automaton has 6465 states and 10607 transitions. Word has length 179 [2025-03-08 05:22:41,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:41,281 INFO L471 AbstractCegarLoop]: Abstraction has 6465 states and 10607 transitions. [2025-03-08 05:22:41,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:41,281 INFO L276 IsEmpty]: Start isEmpty. Operand 6465 states and 10607 transitions. [2025-03-08 05:22:41,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-08 05:22:41,286 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:41,286 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:41,294 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:41,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:41,487 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:41,488 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:41,488 INFO L85 PathProgramCache]: Analyzing trace with hash -651272106, now seen corresponding path program 1 times [2025-03-08 05:22:41,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:41,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765087054] [2025-03-08 05:22:41,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:41,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:41,504 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-08 05:22:41,513 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-08 05:22:41,513 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:41,513 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:41,743 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-03-08 05:22:41,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765087054] [2025-03-08 05:22:41,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765087054] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:41,743 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410167873] [2025-03-08 05:22:41,743 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:41,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:41,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:41,745 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:41,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-08 05:22:41,859 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-08 05:22:41,955 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-08 05:22:41,955 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:41,955 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:41,959 INFO L256 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:41,962 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:41,992 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:41,992 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:41,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410167873] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:41,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:41,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:41,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641244519] [2025-03-08 05:22:41,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:41,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:41,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:41,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:41,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:41,994 INFO L87 Difference]: Start difference. First operand 6465 states and 10607 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:42,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:42,267 INFO L93 Difference]: Finished difference Result 13209 states and 21824 transitions. [2025-03-08 05:22:42,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:42,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2025-03-08 05:22:42,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:42,304 INFO L225 Difference]: With dead ends: 13209 [2025-03-08 05:22:42,304 INFO L226 Difference]: Without dead ends: 6789 [2025-03-08 05:22:42,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:42,324 INFO L435 NwaCegarLoop]: 763 mSDtfsCounter, 138 mSDsluCounter, 1503 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2266 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:42,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2266 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:42,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6789 states. [2025-03-08 05:22:42,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6789 to 6699. [2025-03-08 05:22:42,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6699 states, 5230 states have (on average 1.6231357552581263) internal successors, (8489), 5412 states have internal predecessors, (8489), 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) [2025-03-08 05:22:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6699 states to 6699 states and 11045 transitions. [2025-03-08 05:22:42,582 INFO L78 Accepts]: Start accepts. Automaton has 6699 states and 11045 transitions. Word has length 182 [2025-03-08 05:22:42,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:42,582 INFO L471 AbstractCegarLoop]: Abstraction has 6699 states and 11045 transitions. [2025-03-08 05:22:42,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:42,582 INFO L276 IsEmpty]: Start isEmpty. Operand 6699 states and 11045 transitions. [2025-03-08 05:22:42,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-08 05:22:42,587 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:42,587 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:42,595 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:42,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:42,788 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:42,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:42,788 INFO L85 PathProgramCache]: Analyzing trace with hash 1081026752, now seen corresponding path program 1 times [2025-03-08 05:22:42,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [93446257] [2025-03-08 05:22:42,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:42,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:42,800 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:22:42,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:22:42,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:42,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:43,019 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-08 05:22:43,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [93446257] [2025-03-08 05:22:43,020 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [93446257] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:43,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166757953] [2025-03-08 05:22:43,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:43,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:43,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:43,026 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:43,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-08 05:22:43,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:22:43,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:22:43,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:43,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:43,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:43,329 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 05:22:43,362 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:43,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166757953] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:43,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:43,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:43,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786456662] [2025-03-08 05:22:43,362 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:43,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:43,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:43,368 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:43,368 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:43,368 INFO L87 Difference]: Start difference. First operand 6699 states and 11045 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:43,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:43,659 INFO L93 Difference]: Finished difference Result 13695 states and 22700 transitions. [2025-03-08 05:22:43,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:43,660 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 184 [2025-03-08 05:22:43,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:43,698 INFO L225 Difference]: With dead ends: 13695 [2025-03-08 05:22:43,698 INFO L226 Difference]: Without dead ends: 7041 [2025-03-08 05:22:43,720 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:43,721 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 136 mSDsluCounter, 1498 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2259 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:43,721 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2259 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:43,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7041 states. [2025-03-08 05:22:43,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7041 to 6933. [2025-03-08 05:22:43,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 5458 states have (on average 1.6355807988274094) internal successors, (8927), 5640 states have internal predecessors, (8927), 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) [2025-03-08 05:22:43,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 11483 transitions. [2025-03-08 05:22:43,972 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 11483 transitions. Word has length 184 [2025-03-08 05:22:43,972 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:43,972 INFO L471 AbstractCegarLoop]: Abstraction has 6933 states and 11483 transitions. [2025-03-08 05:22:43,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-08 05:22:43,973 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 11483 transitions. [2025-03-08 05:22:43,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-08 05:22:43,978 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:43,978 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:43,988 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:44,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:44,179 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:44,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:44,179 INFO L85 PathProgramCache]: Analyzing trace with hash 727252964, now seen corresponding path program 1 times [2025-03-08 05:22:44,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:44,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997846635] [2025-03-08 05:22:44,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:44,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:44,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:22:44,201 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:22:44,201 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:44,201 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:44,426 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-08 05:22:44,426 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:44,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997846635] [2025-03-08 05:22:44,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997846635] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:44,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1208899840] [2025-03-08 05:22:44,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:44,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:44,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:44,428 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:44,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-08 05:22:44,554 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-08 05:22:44,667 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-08 05:22:44,667 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:44,667 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:44,672 INFO L256 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-08 05:22:44,675 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:44,810 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-08 05:22:44,810 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:44,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1208899840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:44,811 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:44,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2025-03-08 05:22:44,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034699697] [2025-03-08 05:22:44,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:44,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:22:44,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:44,812 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:22:44,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:44,812 INFO L87 Difference]: Start difference. First operand 6933 states and 11483 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-08 05:22:46,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:46,896 INFO L93 Difference]: Finished difference Result 21545 states and 36259 transitions. [2025-03-08 05:22:46,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 05:22:46,897 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2025-03-08 05:22:46,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:46,953 INFO L225 Difference]: With dead ends: 21545 [2025-03-08 05:22:46,953 INFO L226 Difference]: Without dead ends: 11353 [2025-03-08 05:22:46,989 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2025-03-08 05:22:46,991 INFO L435 NwaCegarLoop]: 364 mSDtfsCounter, 1874 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 3763 mSolverCounterSat, 478 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1974 SdHoareTripleChecker+Valid, 2277 SdHoareTripleChecker+Invalid, 4241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 478 IncrementalHoareTripleChecker+Valid, 3763 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:46,991 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1974 Valid, 2277 Invalid, 4241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [478 Valid, 3763 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 05:22:47,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11353 states. [2025-03-08 05:22:47,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11353 to 11228. [2025-03-08 05:22:47,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11228 states, 8738 states have (on average 1.6316090638590066) internal successors, (14257), 9093 states have internal predecessors, (14257), 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) [2025-03-08 05:22:47,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11228 states to 11228 states and 18609 transitions. [2025-03-08 05:22:47,552 INFO L78 Accepts]: Start accepts. Automaton has 11228 states and 18609 transitions. Word has length 184 [2025-03-08 05:22:47,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:47,552 INFO L471 AbstractCegarLoop]: Abstraction has 11228 states and 18609 transitions. [2025-03-08 05:22:47,552 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-08 05:22:47,552 INFO L276 IsEmpty]: Start isEmpty. Operand 11228 states and 18609 transitions. [2025-03-08 05:22:47,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-03-08 05:22:47,560 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:47,560 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:47,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-08 05:22:47,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:47,761 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:47,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:47,762 INFO L85 PathProgramCache]: Analyzing trace with hash 47320064, now seen corresponding path program 1 times [2025-03-08 05:22:47,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:47,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135937658] [2025-03-08 05:22:47,762 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:47,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:47,775 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-08 05:22:47,780 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-08 05:22:47,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:47,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:47,911 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-08 05:22:47,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:47,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135937658] [2025-03-08 05:22:47,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135937658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:47,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:47,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 05:22:47,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099299578] [2025-03-08 05:22:47,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:47,912 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:22:47,912 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:47,913 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:22:47,913 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:47,913 INFO L87 Difference]: Start difference. First operand 11228 states and 18609 transitions. Second operand has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-08 05:22:48,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:48,307 INFO L93 Difference]: Finished difference Result 22153 states and 36729 transitions. [2025-03-08 05:22:48,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 05:22:48,307 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2025-03-08 05:22:48,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:48,356 INFO L225 Difference]: With dead ends: 22153 [2025-03-08 05:22:48,356 INFO L226 Difference]: Without dead ends: 10610 [2025-03-08 05:22:48,386 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:48,387 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 33 mSDsluCounter, 4792 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5596 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 [2025-03-08 05:22:48,387 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5596 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:48,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10610 states. [2025-03-08 05:22:48,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10610 to 10586. [2025-03-08 05:22:48,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10586 states, 8331 states have (on average 1.6447005161445205) internal successors, (13702), 8661 states have internal predecessors, (13702), 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) [2025-03-08 05:22:48,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10586 states to 10586 states and 17517 transitions. [2025-03-08 05:22:48,821 INFO L78 Accepts]: Start accepts. Automaton has 10586 states and 17517 transitions. Word has length 187 [2025-03-08 05:22:48,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:48,821 INFO L471 AbstractCegarLoop]: Abstraction has 10586 states and 17517 transitions. [2025-03-08 05:22:48,821 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-08 05:22:48,821 INFO L276 IsEmpty]: Start isEmpty. Operand 10586 states and 17517 transitions. [2025-03-08 05:22:48,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2025-03-08 05:22:48,831 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:48,832 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] [2025-03-08 05:22:48,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2025-03-08 05:22:48,832 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:48,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:48,833 INFO L85 PathProgramCache]: Analyzing trace with hash 552229147, now seen corresponding path program 1 times [2025-03-08 05:22:48,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:48,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104455668] [2025-03-08 05:22:48,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:48,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:48,858 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-08 05:22:48,864 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-08 05:22:48,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:48,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:49,297 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:49,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:49,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104455668] [2025-03-08 05:22:49,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104455668] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:49,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1102523422] [2025-03-08 05:22:49,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:49,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:49,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:49,299 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:49,300 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-08 05:22:49,488 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-08 05:22:49,743 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-08 05:22:49,743 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:49,743 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:49,755 INFO L256 TraceCheckSpWp]: Trace formula consists of 3992 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:49,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:49,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-03-08 05:22:49,797 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:49,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1102523422] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:49,797 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:49,797 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:49,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057596281] [2025-03-08 05:22:49,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:49,798 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:49,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:49,798 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:49,798 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:49,798 INFO L87 Difference]: Start difference. First operand 10586 states and 17517 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:22:50,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:50,363 INFO L93 Difference]: Finished difference Result 21220 states and 35417 transitions. [2025-03-08 05:22:50,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:50,363 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 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 526 [2025-03-08 05:22:50,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:50,434 INFO L225 Difference]: With dead ends: 21220 [2025-03-08 05:22:50,434 INFO L226 Difference]: Without dead ends: 10676 [2025-03-08 05:22:50,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:50,481 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 22 mSDsluCounter, 1592 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2400 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:50,481 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2400 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:50,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10676 states. [2025-03-08 05:22:50,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10676 to 10676. [2025-03-08 05:22:50,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10676 states, 8411 states have (on average 1.6457020568303413) internal successors, (13842), 8741 states have internal predecessors, (13842), 1630 states have call successors, (1630), 493 states have call predecessors, (1630), 634 states have return successors, (2185), 1570 states have call predecessors, (2185), 1622 states have call successors, (2185) [2025-03-08 05:22:50,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10676 states to 10676 states and 17657 transitions. [2025-03-08 05:22:50,906 INFO L78 Accepts]: Start accepts. Automaton has 10676 states and 17657 transitions. Word has length 526 [2025-03-08 05:22:50,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:50,907 INFO L471 AbstractCegarLoop]: Abstraction has 10676 states and 17657 transitions. [2025-03-08 05:22:50,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:22:50,907 INFO L276 IsEmpty]: Start isEmpty. Operand 10676 states and 17657 transitions. [2025-03-08 05:22:50,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-08 05:22:50,916 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:50,916 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] [2025-03-08 05:22:50,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:51,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:51,121 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:51,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:51,121 INFO L85 PathProgramCache]: Analyzing trace with hash 138823630, now seen corresponding path program 1 times [2025-03-08 05:22:51,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:51,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292163068] [2025-03-08 05:22:51,122 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:51,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:51,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:51,146 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:51,146 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:51,146 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:51,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:51,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:51,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292163068] [2025-03-08 05:22:51,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292163068] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:51,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1300446038] [2025-03-08 05:22:51,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:51,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:51,543 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:51,546 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:51,547 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-08 05:22:51,722 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:51,976 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:51,976 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:51,976 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:51,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:51,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:52,024 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2025-03-08 05:22:52,024 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:52,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1300446038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:52,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:52,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:52,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530104806] [2025-03-08 05:22:52,025 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:52,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:52,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:52,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:52,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:52,026 INFO L87 Difference]: Start difference. First operand 10676 states and 17657 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:22:52,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:52,399 INFO L93 Difference]: Finished difference Result 21400 states and 35657 transitions. [2025-03-08 05:22:52,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:52,399 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 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 527 [2025-03-08 05:22:52,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:52,452 INFO L225 Difference]: With dead ends: 21400 [2025-03-08 05:22:52,452 INFO L226 Difference]: Without dead ends: 10766 [2025-03-08 05:22:52,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:52,482 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 20 mSDsluCounter, 1588 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2394 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:52,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2394 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:52,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10766 states. [2025-03-08 05:22:52,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10766 to 10766. [2025-03-08 05:22:52,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10766 states, 8491 states have (on average 1.6466847250029444) internal successors, (13982), 8821 states have internal predecessors, (13982), 1630 states have call successors, (1630), 503 states have call predecessors, (1630), 644 states have return successors, (2185), 1570 states have call predecessors, (2185), 1622 states have call successors, (2185) [2025-03-08 05:22:52,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10766 states to 10766 states and 17797 transitions. [2025-03-08 05:22:52,907 INFO L78 Accepts]: Start accepts. Automaton has 10766 states and 17797 transitions. Word has length 527 [2025-03-08 05:22:52,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:52,908 INFO L471 AbstractCegarLoop]: Abstraction has 10766 states and 17797 transitions. [2025-03-08 05:22:52,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-08 05:22:52,908 INFO L276 IsEmpty]: Start isEmpty. Operand 10766 states and 17797 transitions. [2025-03-08 05:22:52,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-08 05:22:52,921 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:52,921 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] [2025-03-08 05:22:52,932 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:53,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:53,122 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:53,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:53,123 INFO L85 PathProgramCache]: Analyzing trace with hash -651635942, now seen corresponding path program 1 times [2025-03-08 05:22:53,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:53,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519073136] [2025-03-08 05:22:53,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:53,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:53,150 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:53,158 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:53,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:53,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:53,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:53,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519073136] [2025-03-08 05:22:53,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519073136] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:53,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [414306679] [2025-03-08 05:22:53,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:53,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:53,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:53,722 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:53,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-08 05:22:53,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:54,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:54,222 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:54,222 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:54,234 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 05:22:54,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:54,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-08 05:22:54,284 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:54,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [414306679] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:54,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:54,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:22:54,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546787259] [2025-03-08 05:22:54,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:54,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:54,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:54,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:54,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:54,286 INFO L87 Difference]: Start difference. First operand 10766 states and 17797 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-08 05:22:54,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:54,698 INFO L93 Difference]: Finished difference Result 16434 states and 27265 transitions. [2025-03-08 05:22:54,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:54,699 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 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 527 [2025-03-08 05:22:54,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:54,752 INFO L225 Difference]: With dead ends: 16434 [2025-03-08 05:22:54,752 INFO L226 Difference]: Without dead ends: 10826 [2025-03-08 05:22:54,774 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:54,775 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 22 mSDsluCounter, 1604 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2413 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:54,775 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2413 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:54,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10826 states. [2025-03-08 05:22:55,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10826 to 10826. [2025-03-08 05:22:55,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10826 states, 8541 states have (on average 1.646411427233345) internal successors, (14062), 8871 states have internal predecessors, (14062), 1635 states have call successors, (1635), 508 states have call predecessors, (1635), 649 states have return successors, (2190), 1575 states have call predecessors, (2190), 1627 states have call successors, (2190) [2025-03-08 05:22:55,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10826 states to 10826 states and 17887 transitions. [2025-03-08 05:22:55,152 INFO L78 Accepts]: Start accepts. Automaton has 10826 states and 17887 transitions. Word has length 527 [2025-03-08 05:22:55,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:55,152 INFO L471 AbstractCegarLoop]: Abstraction has 10826 states and 17887 transitions. [2025-03-08 05:22:55,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-08 05:22:55,152 INFO L276 IsEmpty]: Start isEmpty. Operand 10826 states and 17887 transitions. [2025-03-08 05:22:55,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2025-03-08 05:22:55,162 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:55,162 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] [2025-03-08 05:22:55,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-08 05:22:55,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-08 05:22:55,363 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:55,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:55,363 INFO L85 PathProgramCache]: Analyzing trace with hash 798032895, now seen corresponding path program 1 times [2025-03-08 05:22:55,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:55,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980808458] [2025-03-08 05:22:55,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:55,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:55,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-08 05:22:55,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-08 05:22:55,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:55,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:55,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:55,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:55,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980808458] [2025-03-08 05:22:55,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980808458] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:55,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1477315113] [2025-03-08 05:22:55,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:55,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:55,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:55,752 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:55,753 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-08 05:22:55,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-08 05:22:56,184 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-08 05:22:56,184 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:56,184 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:56,196 INFO L256 TraceCheckSpWp]: Trace formula consists of 3992 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:22:56,202 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:56,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-08 05:22:56,255 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:56,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1477315113] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:56,255 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:56,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:22:56,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494930555] [2025-03-08 05:22:56,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:56,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:56,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:56,256 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:56,256 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:56,257 INFO L87 Difference]: Start difference. First operand 10826 states and 17887 transitions. Second operand has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:22:56,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:56,586 INFO L93 Difference]: Finished difference Result 17664 states and 29198 transitions. [2025-03-08 05:22:56,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:56,587 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 526 [2025-03-08 05:22:56,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:56,642 INFO L225 Difference]: With dead ends: 17664 [2025-03-08 05:22:56,642 INFO L226 Difference]: Without dead ends: 10818 [2025-03-08 05:22:56,664 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:56,665 INFO L435 NwaCegarLoop]: 819 mSDtfsCounter, 23 mSDsluCounter, 4062 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4881 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:56,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4881 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:56,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10818 states. [2025-03-08 05:22:56,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10818 to 10818. [2025-03-08 05:22:56,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10818 states, 8533 states have (on average 1.6460799249970701) internal successors, (14046), 8863 states have internal predecessors, (14046), 1635 states have call successors, (1635), 508 states have call predecessors, (1635), 649 states have return successors, (2190), 1575 states have call predecessors, (2190), 1627 states have call successors, (2190) [2025-03-08 05:22:56,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10818 states to 10818 states and 17871 transitions. [2025-03-08 05:22:57,017 INFO L78 Accepts]: Start accepts. Automaton has 10818 states and 17871 transitions. Word has length 526 [2025-03-08 05:22:57,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:57,017 INFO L471 AbstractCegarLoop]: Abstraction has 10818 states and 17871 transitions. [2025-03-08 05:22:57,017 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:22:57,017 INFO L276 IsEmpty]: Start isEmpty. Operand 10818 states and 17871 transitions. [2025-03-08 05:22:57,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-08 05:22:57,026 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:57,026 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, 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] [2025-03-08 05:22:57,041 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:57,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-08 05:22:57,227 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:57,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:57,227 INFO L85 PathProgramCache]: Analyzing trace with hash -837197875, now seen corresponding path program 1 times [2025-03-08 05:22:57,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:57,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640188139] [2025-03-08 05:22:57,228 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:57,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:57,248 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:57,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:57,258 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:57,258 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:57,689 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:57,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:57,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640188139] [2025-03-08 05:22:57,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640188139] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:57,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1724028220] [2025-03-08 05:22:57,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:57,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:57,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:57,692 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:57,692 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-08 05:22:57,885 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-08 05:22:58,156 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-08 05:22:58,156 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:58,156 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:58,168 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:22:58,176 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-08 05:22:58,242 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:58,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1724028220] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:58,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:58,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:22:58,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030743259] [2025-03-08 05:22:58,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:58,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:58,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:58,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:58,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:58,243 INFO L87 Difference]: Start difference. First operand 10818 states and 17871 transitions. Second operand has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:22:58,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:58,556 INFO L93 Difference]: Finished difference Result 17656 states and 29182 transitions. [2025-03-08 05:22:58,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:58,556 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 527 [2025-03-08 05:22:58,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:58,612 INFO L225 Difference]: With dead ends: 17656 [2025-03-08 05:22:58,613 INFO L226 Difference]: Without dead ends: 10810 [2025-03-08 05:22:58,637 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:22:58,638 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 28 mSDsluCounter, 4017 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 4827 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:58,638 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 4827 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:58,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10810 states. [2025-03-08 05:22:59,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10810 to 10810. [2025-03-08 05:22:59,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10810 states, 8525 states have (on average 1.6456304985337245) internal successors, (14029), 8855 states have internal predecessors, (14029), 1635 states have call successors, (1635), 508 states have call predecessors, (1635), 649 states have return successors, (2190), 1575 states have call predecessors, (2190), 1627 states have call successors, (2190) [2025-03-08 05:22:59,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10810 states to 10810 states and 17854 transitions. [2025-03-08 05:22:59,163 INFO L78 Accepts]: Start accepts. Automaton has 10810 states and 17854 transitions. Word has length 527 [2025-03-08 05:22:59,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:59,163 INFO L471 AbstractCegarLoop]: Abstraction has 10810 states and 17854 transitions. [2025-03-08 05:22:59,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:22:59,163 INFO L276 IsEmpty]: Start isEmpty. Operand 10810 states and 17854 transitions. [2025-03-08 05:22:59,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2025-03-08 05:22:59,175 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:59,175 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, 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] [2025-03-08 05:22:59,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-08 05:22:59,376 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-08 05:22:59,376 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:59,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:59,377 INFO L85 PathProgramCache]: Analyzing trace with hash -146160731, now seen corresponding path program 1 times [2025-03-08 05:22:59,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:59,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1019427084] [2025-03-08 05:22:59,377 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:59,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:59,403 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 528 statements into 1 equivalence classes. [2025-03-08 05:22:59,411 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 528 of 528 statements. [2025-03-08 05:22:59,411 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:59,411 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:59,977 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:22:59,977 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:59,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1019427084] [2025-03-08 05:22:59,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1019427084] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:59,977 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881039575] [2025-03-08 05:22:59,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:59,978 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:59,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:59,980 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:59,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-08 05:23:00,184 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 528 statements into 1 equivalence classes. [2025-03-08 05:23:00,460 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 528 of 528 statements. [2025-03-08 05:23:00,460 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:00,461 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:00,471 INFO L256 TraceCheckSpWp]: Trace formula consists of 3994 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:23:00,480 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:00,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-08 05:23:00,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:00,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881039575] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:23:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236919537] [2025-03-08 05:23:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:00,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:23:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:00,550 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:23:00,550 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:23:00,550 INFO L87 Difference]: Start difference. First operand 10810 states and 17854 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:23:00,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:00,914 INFO L93 Difference]: Finished difference Result 17648 states and 29165 transitions. [2025-03-08 05:23:00,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:23:00,914 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 528 [2025-03-08 05:23:00,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:00,968 INFO L225 Difference]: With dead ends: 17648 [2025-03-08 05:23:00,968 INFO L226 Difference]: Without dead ends: 10802 [2025-03-08 05:23:00,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:23:00,992 INFO L435 NwaCegarLoop]: 809 mSDtfsCounter, 26 mSDsluCounter, 4013 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 4822 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:00,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 4822 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:00,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10802 states. [2025-03-08 05:23:01,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10802 to 10802. [2025-03-08 05:23:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10802 states, 8517 states have (on average 1.6452976400140895) internal successors, (14013), 8847 states have internal predecessors, (14013), 1635 states have call successors, (1635), 508 states have call predecessors, (1635), 649 states have return successors, (2190), 1575 states have call predecessors, (2190), 1627 states have call successors, (2190) [2025-03-08 05:23:01,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10802 states to 10802 states and 17838 transitions. [2025-03-08 05:23:01,410 INFO L78 Accepts]: Start accepts. Automaton has 10802 states and 17838 transitions. Word has length 528 [2025-03-08 05:23:01,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:01,411 INFO L471 AbstractCegarLoop]: Abstraction has 10802 states and 17838 transitions. [2025-03-08 05:23:01,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:23:01,411 INFO L276 IsEmpty]: Start isEmpty. Operand 10802 states and 17838 transitions. [2025-03-08 05:23:01,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2025-03-08 05:23:01,419 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:01,420 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, 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] [2025-03-08 05:23:01,431 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:01,620 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:01,620 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:01,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:01,621 INFO L85 PathProgramCache]: Analyzing trace with hash -355262285, now seen corresponding path program 1 times [2025-03-08 05:23:01,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:01,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490392396] [2025-03-08 05:23:01,621 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:01,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:01,641 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-08 05:23:01,647 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-08 05:23:01,647 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:01,647 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:02,009 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:02,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:02,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490392396] [2025-03-08 05:23:02,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [490392396] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:02,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [858479638] [2025-03-08 05:23:02,009 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:02,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:02,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:02,011 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:02,012 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-08 05:23:02,198 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-08 05:23:02,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-08 05:23:02,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:02,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:02,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 3995 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:23:02,468 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:02,530 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-08 05:23:02,531 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:02,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [858479638] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:02,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:02,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-08 05:23:02,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1428132150] [2025-03-08 05:23:02,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:02,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:23:02,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:02,532 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:23:02,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:23:02,533 INFO L87 Difference]: Start difference. First operand 10802 states and 17838 transitions. Second operand has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:23:02,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:02,845 INFO L93 Difference]: Finished difference Result 17640 states and 29149 transitions. [2025-03-08 05:23:02,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:23:02,846 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 529 [2025-03-08 05:23:02,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:02,913 INFO L225 Difference]: With dead ends: 17640 [2025-03-08 05:23:02,913 INFO L226 Difference]: Without dead ends: 10794 [2025-03-08 05:23:02,941 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-08 05:23:02,941 INFO L435 NwaCegarLoop]: 808 mSDtfsCounter, 23 mSDsluCounter, 4009 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 4817 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:02,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 4817 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:02,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10794 states. [2025-03-08 05:23:03,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10794 to 10794. [2025-03-08 05:23:03,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10794 states, 8509 states have (on average 1.644964155599953) internal successors, (13997), 8839 states have internal predecessors, (13997), 1635 states have call successors, (1635), 508 states have call predecessors, (1635), 649 states have return successors, (2190), 1575 states have call predecessors, (2190), 1627 states have call successors, (2190) [2025-03-08 05:23:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10794 states to 10794 states and 17822 transitions. [2025-03-08 05:23:03,381 INFO L78 Accepts]: Start accepts. Automaton has 10794 states and 17822 transitions. Word has length 529 [2025-03-08 05:23:03,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:03,382 INFO L471 AbstractCegarLoop]: Abstraction has 10794 states and 17822 transitions. [2025-03-08 05:23:03,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-08 05:23:03,382 INFO L276 IsEmpty]: Start isEmpty. Operand 10794 states and 17822 transitions. [2025-03-08 05:23:03,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2025-03-08 05:23:03,390 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:03,390 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, 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] [2025-03-08 05:23:03,401 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-08 05:23:03,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-08 05:23:03,591 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:03,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:03,591 INFO L85 PathProgramCache]: Analyzing trace with hash -1596533893, now seen corresponding path program 1 times [2025-03-08 05:23:03,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:03,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918709937] [2025-03-08 05:23:03,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:03,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:03,610 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-08 05:23:03,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-08 05:23:03,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:03,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:03,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-08 05:23:03,966 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:03,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918709937] [2025-03-08 05:23:03,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918709937] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:03,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880215186] [2025-03-08 05:23:03,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:03,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:03,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:03,968 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:03,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-08 05:23:04,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-08 05:23:04,399 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-08 05:23:04,399 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:04,399 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:04,410 INFO L256 TraceCheckSpWp]: Trace formula consists of 3991 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-08 05:23:04,418 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:05,142 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 207 proven. 15 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2025-03-08 05:23:05,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:23:06,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2025-03-08 05:23:06,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880215186] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:06,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-08 05:23:06,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 23 [2025-03-08 05:23:06,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188152614] [2025-03-08 05:23:06,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:06,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:23:06,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:06,310 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:23:06,310 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2025-03-08 05:23:06,310 INFO L87 Difference]: Start difference. First operand 10794 states and 17822 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-08 05:23:07,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:07,869 INFO L93 Difference]: Finished difference Result 17803 states and 29500 transitions. [2025-03-08 05:23:07,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:23:07,869 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) Word has length 529 [2025-03-08 05:23:07,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:07,927 INFO L225 Difference]: With dead ends: 17803 [2025-03-08 05:23:07,927 INFO L226 Difference]: Without dead ends: 13334 [2025-03-08 05:23:07,943 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1049 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2025-03-08 05:23:07,943 INFO L435 NwaCegarLoop]: 894 mSDtfsCounter, 1698 mSDsluCounter, 1197 mSDsCounter, 0 mSdLazyCounter, 1662 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1714 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 1662 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:07,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1714 Valid, 2091 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 1662 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-08 05:23:07,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13334 states. [2025-03-08 05:23:08,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13334 to 13253. [2025-03-08 05:23:08,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13253 states, 10506 states have (on average 1.6471540072339614) internal successors, (17305), 10875 states have internal predecessors, (17305), 1979 states have call successors, (1979), 614 states have call predecessors, (1979), 767 states have return successors, (2636), 1873 states have call predecessors, (2636), 1969 states have call successors, (2636) [2025-03-08 05:23:08,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13253 states to 13253 states and 21920 transitions. [2025-03-08 05:23:08,417 INFO L78 Accepts]: Start accepts. Automaton has 13253 states and 21920 transitions. Word has length 529 [2025-03-08 05:23:08,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:08,418 INFO L471 AbstractCegarLoop]: Abstraction has 13253 states and 21920 transitions. [2025-03-08 05:23:08,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-08 05:23:08,418 INFO L276 IsEmpty]: Start isEmpty. Operand 13253 states and 21920 transitions. [2025-03-08 05:23:08,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-03-08 05:23:08,428 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:08,428 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, 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, 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] [2025-03-08 05:23:08,439 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-08 05:23:08,628 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2025-03-08 05:23:08,628 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:08,629 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:08,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1523332891, now seen corresponding path program 1 times [2025-03-08 05:23:08,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:08,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249863562] [2025-03-08 05:23:08,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:08,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:08,649 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-08 05:23:08,656 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-08 05:23:08,656 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:08,656 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:09,038 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-08 05:23:09,038 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:09,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249863562] [2025-03-08 05:23:09,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1249863562] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:09,038 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294597880] [2025-03-08 05:23:09,038 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:09,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:09,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:09,040 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:09,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-08 05:23:09,247 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-08 05:23:09,511 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-08 05:23:09,511 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:09,511 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:09,524 INFO L256 TraceCheckSpWp]: Trace formula consists of 4206 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:09,535 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:09,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2025-03-08 05:23:09,566 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:09,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294597880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:09,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:09,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:09,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247613339] [2025-03-08 05:23:09,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:09,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:09,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:09,567 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:09,568 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:09,568 INFO L87 Difference]: Start difference. First operand 13253 states and 21920 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-08 05:23:10,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:10,120 INFO L93 Difference]: Finished difference Result 21984 states and 36754 transitions. [2025-03-08 05:23:10,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:10,120 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 545 [2025-03-08 05:23:10,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:10,183 INFO L225 Difference]: With dead ends: 21984 [2025-03-08 05:23:10,184 INFO L226 Difference]: Without dead ends: 13718 [2025-03-08 05:23:10,210 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:10,210 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 140 mSDsluCounter, 1484 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2240 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:10,210 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2240 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:10,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13718 states. [2025-03-08 05:23:10,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13718 to 13643. [2025-03-08 05:23:10,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13643 states, 10876 states have (on average 1.6550202280250093) internal successors, (18000), 11245 states have internal predecessors, (18000), 1989 states have call successors, (1989), 624 states have call predecessors, (1989), 777 states have return successors, (2646), 1883 states have call predecessors, (2646), 1979 states have call successors, (2646) [2025-03-08 05:23:10,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13643 states to 13643 states and 22635 transitions. [2025-03-08 05:23:10,665 INFO L78 Accepts]: Start accepts. Automaton has 13643 states and 22635 transitions. Word has length 545 [2025-03-08 05:23:10,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:10,665 INFO L471 AbstractCegarLoop]: Abstraction has 13643 states and 22635 transitions. [2025-03-08 05:23:10,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-08 05:23:10,666 INFO L276 IsEmpty]: Start isEmpty. Operand 13643 states and 22635 transitions. [2025-03-08 05:23:10,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2025-03-08 05:23:10,675 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:10,675 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, 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, 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] [2025-03-08 05:23:10,686 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-08 05:23:10,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2025-03-08 05:23:10,876 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:10,876 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:10,876 INFO L85 PathProgramCache]: Analyzing trace with hash 889916723, now seen corresponding path program 1 times [2025-03-08 05:23:10,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:10,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259149354] [2025-03-08 05:23:10,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:10,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:10,898 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-08 05:23:10,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-08 05:23:10,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:10,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:11,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-08 05:23:11,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:11,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259149354] [2025-03-08 05:23:11,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259149354] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:11,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858531299] [2025-03-08 05:23:11,287 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:11,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:11,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:11,289 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:11,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-08 05:23:11,499 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-08 05:23:11,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-08 05:23:11,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:11,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:11,768 INFO L256 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:11,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:11,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2025-03-08 05:23:11,804 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:11,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858531299] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:11,804 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:11,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:11,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142695738] [2025-03-08 05:23:11,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:11,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:11,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:11,806 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:11,806 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:11,806 INFO L87 Difference]: Start difference. First operand 13643 states and 22635 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-08 05:23:12,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:12,605 INFO L93 Difference]: Finished difference Result 22749 states and 38074 transitions. [2025-03-08 05:23:12,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:12,606 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 547 [2025-03-08 05:23:12,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:12,693 INFO L225 Difference]: With dead ends: 22749 [2025-03-08 05:23:12,694 INFO L226 Difference]: Without dead ends: 14348 [2025-03-08 05:23:12,739 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:12,741 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 138 mSDsluCounter, 1486 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2242 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:12,741 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2242 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:12,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14348 states. [2025-03-08 05:23:13,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14348 to 14228. [2025-03-08 05:23:13,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14228 states, 11431 states have (on average 1.6669582713673345) internal successors, (19055), 11800 states have internal predecessors, (19055), 2004 states have call successors, (2004), 639 states have call predecessors, (2004), 792 states have return successors, (2661), 1898 states have call predecessors, (2661), 1994 states have call successors, (2661) [2025-03-08 05:23:13,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14228 states to 14228 states and 23720 transitions. [2025-03-08 05:23:13,244 INFO L78 Accepts]: Start accepts. Automaton has 14228 states and 23720 transitions. Word has length 547 [2025-03-08 05:23:13,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:13,245 INFO L471 AbstractCegarLoop]: Abstraction has 14228 states and 23720 transitions. [2025-03-08 05:23:13,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-08 05:23:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 14228 states and 23720 transitions. [2025-03-08 05:23:13,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2025-03-08 05:23:13,255 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:13,256 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, 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, 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] [2025-03-08 05:23:13,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:13,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:13,456 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:13,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:13,457 INFO L85 PathProgramCache]: Analyzing trace with hash -2022700210, now seen corresponding path program 1 times [2025-03-08 05:23:13,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:13,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793601525] [2025-03-08 05:23:13,457 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:13,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:13,479 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-03-08 05:23:13,486 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-03-08 05:23:13,486 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:13,486 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-08 05:23:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793601525] [2025-03-08 05:23:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793601525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920125337] [2025-03-08 05:23:13,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:13,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:13,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:13,866 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:13,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-08 05:23:14,076 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-03-08 05:23:14,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-03-08 05:23:14,353 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:14,353 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:14,365 INFO L256 TraceCheckSpWp]: Trace formula consists of 4209 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:23:14,371 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:14,401 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2025-03-08 05:23:14,401 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:14,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920125337] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:14,401 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:14,401 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:14,401 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330528539] [2025-03-08 05:23:14,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:14,402 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:14,402 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:14,402 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:14,402 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:14,403 INFO L87 Difference]: Start difference. First operand 14228 states and 23720 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-08 05:23:14,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:14,967 INFO L93 Difference]: Finished difference Result 23759 states and 39869 transitions. [2025-03-08 05:23:14,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:14,967 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 548 [2025-03-08 05:23:14,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:15,046 INFO L225 Difference]: With dead ends: 23759 [2025-03-08 05:23:15,046 INFO L226 Difference]: Without dead ends: 14978 [2025-03-08 05:23:15,079 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:15,079 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 135 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:15,079 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2236 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:23:15,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14978 states. [2025-03-08 05:23:15,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14978 to 14813. [2025-03-08 05:23:15,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14813 states, 11986 states have (on average 1.677790755881862) internal successors, (20110), 12355 states have internal predecessors, (20110), 2019 states have call successors, (2019), 654 states have call predecessors, (2019), 807 states have return successors, (2676), 1913 states have call predecessors, (2676), 2009 states have call successors, (2676) [2025-03-08 05:23:15,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14813 states to 14813 states and 24805 transitions. [2025-03-08 05:23:15,568 INFO L78 Accepts]: Start accepts. Automaton has 14813 states and 24805 transitions. Word has length 548 [2025-03-08 05:23:15,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:15,569 INFO L471 AbstractCegarLoop]: Abstraction has 14813 states and 24805 transitions. [2025-03-08 05:23:15,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-08 05:23:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 14813 states and 24805 transitions. [2025-03-08 05:23:15,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2025-03-08 05:23:15,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:15,580 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, 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, 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] [2025-03-08 05:23:15,591 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:15,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:15,780 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:15,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:15,781 INFO L85 PathProgramCache]: Analyzing trace with hash 1602157591, now seen corresponding path program 1 times [2025-03-08 05:23:15,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:15,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949956044] [2025-03-08 05:23:15,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:15,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:15,802 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 546 statements into 1 equivalence classes. [2025-03-08 05:23:15,808 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 546 of 546 statements. [2025-03-08 05:23:15,808 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:15,808 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:16,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-08 05:23:16,179 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:16,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949956044] [2025-03-08 05:23:16,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949956044] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:16,179 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093173818] [2025-03-08 05:23:16,179 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:16,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:16,179 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:16,181 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:16,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-08 05:23:16,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 546 statements into 1 equivalence classes. [2025-03-08 05:23:16,671 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 546 of 546 statements. [2025-03-08 05:23:16,671 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:16,671 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:16,682 INFO L256 TraceCheckSpWp]: Trace formula consists of 4207 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-08 05:23:16,688 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:16,717 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2025-03-08 05:23:16,718 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:16,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093173818] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:16,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:16,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-08 05:23:16,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145896089] [2025-03-08 05:23:16,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:16,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:23:16,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:16,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:23:16,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:23:16,719 INFO L87 Difference]: Start difference. First operand 14813 states and 24805 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-08 05:23:17,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:17,195 INFO L93 Difference]: Finished difference Result 23959 states and 40224 transitions. [2025-03-08 05:23:17,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:23:17,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 546 [2025-03-08 05:23:17,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:17,266 INFO L225 Difference]: With dead ends: 23959 [2025-03-08 05:23:17,266 INFO L226 Difference]: Without dead ends: 14873 [2025-03-08 05:23:17,294 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:17,295 INFO L435 NwaCegarLoop]: 802 mSDtfsCounter, 22 mSDsluCounter, 1590 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:17,295 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2392 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:17,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14873 states. [2025-03-08 05:23:17,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14873 to 14873. [2025-03-08 05:23:17,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14873 states, 12036 states have (on average 1.6770521768029245) internal successors, (20185), 12405 states have internal predecessors, (20185), 2024 states have call successors, (2024), 659 states have call predecessors, (2024), 812 states have return successors, (2681), 1918 states have call predecessors, (2681), 2014 states have call successors, (2681) [2025-03-08 05:23:17,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14873 states to 14873 states and 24890 transitions. [2025-03-08 05:23:17,787 INFO L78 Accepts]: Start accepts. Automaton has 14873 states and 24890 transitions. Word has length 546 [2025-03-08 05:23:17,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:17,787 INFO L471 AbstractCegarLoop]: Abstraction has 14873 states and 24890 transitions. [2025-03-08 05:23:17,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-08 05:23:17,787 INFO L276 IsEmpty]: Start isEmpty. Operand 14873 states and 24890 transitions. [2025-03-08 05:23:17,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2025-03-08 05:23:17,798 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:17,798 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, 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, 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] [2025-03-08 05:23:17,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:17,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:17,999 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:17,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:17,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1754844499, now seen corresponding path program 1 times [2025-03-08 05:23:17,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:17,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999074572] [2025-03-08 05:23:17,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:17,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:18,019 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-03-08 05:23:18,025 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-03-08 05:23:18,025 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:18,025 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:18,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-08 05:23:18,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999074572] [2025-03-08 05:23:18,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1999074572] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:18,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1901522938] [2025-03-08 05:23:18,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:18,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:18,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:18,386 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:18,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2025-03-08 05:23:18,604 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-03-08 05:23:18,859 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-03-08 05:23:18,859 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:18,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:18,872 INFO L256 TraceCheckSpWp]: Trace formula consists of 4205 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-08 05:23:18,878 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:19,571 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 120 proven. 84 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2025-03-08 05:23:19,572 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:23:20,645 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 12 proven. 71 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2025-03-08 05:23:20,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1901522938] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:23:20,646 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 05:23:20,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2025-03-08 05:23:20,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252711255] [2025-03-08 05:23:20,646 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 05:23:20,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-08 05:23:20,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:20,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-08 05:23:20,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2025-03-08 05:23:20,648 INFO L87 Difference]: Start difference. First operand 14873 states and 24890 transitions. Second operand has 23 states, 23 states have (on average 21.0) internal successors, (483), 19 states have internal predecessors, (483), 14 states have call successors, (122), 9 states have call predecessors, (122), 15 states have return successors, (119), 18 states have call predecessors, (119), 14 states have call successors, (119)