./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 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_product23.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 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:12:31,962 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:12:32,008 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:12:32,014 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:12:32,016 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:12:32,034 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:12:32,035 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:12:32,036 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:12:32,036 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:12:32,036 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:12:32,037 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:12:32,037 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:12:32,037 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:12:32,037 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:12:32,038 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:12:32,038 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:12:32,039 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:12:32,039 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:12:32,040 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:12:32,040 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:12:32,041 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:12:32,041 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:12:32,041 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 -> 8e3e095c3e35754b69c5b770f69d2f55696576eebdd6e61f09ab7280f663a93f [2025-03-03 14:12:32,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:12:32,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:12:32,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:12:32,278 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:12:32,279 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:12:32,280 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2025-03-03 14:12:33,467 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/727cb46f2/55483d4234ba49548ebe95af6ba033f1/FLAGb108a5dc4 [2025-03-03 14:12:33,770 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:12:33,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product23.cil.c [2025-03-03 14:12:33,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/727cb46f2/55483d4234ba49548ebe95af6ba033f1/FLAGb108a5dc4 [2025-03-03 14:12:34,033 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/727cb46f2/55483d4234ba49548ebe95af6ba033f1 [2025-03-03 14:12:34,035 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:12:34,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:12:34,037 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:12:34,037 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:12:34,040 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:12:34,040 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,041 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1581076a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34, skipping insertion in model container [2025-03-03 14:12:34,041 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:12:34,281 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_product23.cil.c[8585,8598] [2025-03-03 14:12:34,476 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:12:34,488 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:12:34,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [408] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [503] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [544] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [553] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [919] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1586] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3177] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3295] [2025-03-03 14:12:34,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [3330] [2025-03-03 14:12:34,511 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_product23.cil.c[8585,8598] [2025-03-03 14:12:34,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:12:34,633 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:12:34,634 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34 WrapperNode [2025-03-03 14:12:34,635 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:12:34,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:12:34,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:12:34,636 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:12:34,641 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,665 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,704 INFO L138 Inliner]: procedures = 93, calls = 340, calls flagged for inlining = 27, calls inlined = 24, statements flattened = 850 [2025-03-03 14:12:34,704 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:12:34,705 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:12:34,705 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:12:34,705 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:12:34,721 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,722 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,730 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,763 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]. [2025-03-03 14:12:34,765 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,765 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,796 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,802 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,809 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:12:34,813 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:12:34,813 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:12:34,814 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:12:34,815 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (1/1) ... [2025-03-03 14:12:34,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:12:34,828 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:34,840 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) [2025-03-03 14:12:34,843 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 [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-03 14:12:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-03 14:12:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-03 14:12:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-03 14:12:34,867 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-03 14:12:34,867 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-03 14:12:34,868 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-03 14:12:34,868 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-03-03 14:12:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-03 14:12:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-03 14:12:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-03 14:12:34,869 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-03 14:12:34,869 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2025-03-03 14:12:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2025-03-03 14:12:34,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:12:34,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:12:34,871 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-03 14:12:34,871 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-03 14:12:35,009 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:12:35,011 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:12:35,079 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2509-1: stopRequestedAtCurrentFloor__wrappee__weight_#res#1 := stopRequestedAtCurrentFloor__wrappee__weight_~retValue_acc~20#1; [2025-03-03 14:12:35,079 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2537: #res#1 := ~retValue_acc~21#1; [2025-03-03 14:12:35,105 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3292: #res := ~retValue_acc~29; [2025-03-03 14:12:35,123 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3214: #res := ~retValue_acc~27; [2025-03-03 14:12:35,128 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1660: #res := ~retValue_acc~8; [2025-03-03 14:12:35,136 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1813: #res := ~retValue_acc~9; [2025-03-03 14:12:35,184 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3165: #res := ~retValue_acc~25; [2025-03-03 14:12:35,334 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2453-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~19#1; [2025-03-03 14:12:35,334 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2390-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~17#1; [2025-03-03 14:12:35,334 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2419: #res#1 := ~retValue_acc~18#1; [2025-03-03 14:12:35,399 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2582: #res := ~retValue_acc~23; [2025-03-03 14:12:35,412 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3253: #res := ~retValue_acc~28; [2025-03-03 14:12:35,433 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1856: #res := ~retValue_acc~11; [2025-03-03 14:12:35,504 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1985-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~14#1; [2025-03-03 14:12:35,505 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1998-1: isIdle_#res#1 := isIdle_~retValue_acc~15#1; [2025-03-03 14:12:35,614 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3174-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~26#1; [2025-03-03 14:12:35,614 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1822-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~10#1; [2025-03-03 14:12:35,614 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2568-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~22#1; [2025-03-03 14:12:35,668 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1272: #res := ~retValue_acc~6; [2025-03-03 14:12:35,790 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2350: #res := ~retValue_acc~16; [2025-03-03 14:12:35,845 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L405-1: main_#res#1 := main_~retValue_acc~1#1; [2025-03-03 14:12:35,845 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3327-1: valid_product_#res#1 := valid_product_~retValue_acc~31#1; [2025-03-03 14:12:35,856 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036: #res := ~retValue_acc~5; [2025-03-03 14:12:35,858 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1583: #res := ~retValue_acc~7; [2025-03-03 14:12:35,944 INFO L? ?]: Removed 462 outVars from TransFormulas that were not future-live. [2025-03-03 14:12:35,944 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:12:35,965 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:12:35,966 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:12:35,967 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:12:35 BoogieIcfgContainer [2025-03-03 14:12:35,967 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:12:35,969 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:12:35,969 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:12:35,972 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:12:35,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:12:34" (1/3) ... [2025-03-03 14:12:35,972 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fea0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:12:35, skipping insertion in model container [2025-03-03 14:12:35,972 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:34" (2/3) ... [2025-03-03 14:12:35,973 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54fea0a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:12:35, skipping insertion in model container [2025-03-03 14:12:35,973 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:12:35" (3/3) ... [2025-03-03 14:12:35,973 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product23.cil.c [2025-03-03 14:12:35,984 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:12:35,985 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product23.cil.c that has 26 procedures, 558 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 14:12:36,030 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:12:36,039 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;@62ada9b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:12:36,040 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:12:36,046 INFO L276 IsEmpty]: Start isEmpty. Operand has 558 states, 432 states have (on average 1.6643518518518519) internal successors, (719), 448 states have internal predecessors, (719), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) [2025-03-03 14:12:36,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-03 14:12:36,071 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:36,073 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:36,073 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:36,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:36,077 INFO L85 PathProgramCache]: Analyzing trace with hash 288373553, now seen corresponding path program 1 times [2025-03-03 14:12:36,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:36,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153135219] [2025-03-03 14:12:36,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:36,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:36,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-03 14:12:36,234 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-03 14:12:36,239 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:36,239 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:36,518 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:36,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:36,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153135219] [2025-03-03 14:12:36,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153135219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:36,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:36,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:36,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114142670] [2025-03-03 14:12:36,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:36,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:36,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:36,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:36,535 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:36,537 INFO L87 Difference]: Start difference. First operand has 558 states, 432 states have (on average 1.6643518518518519) internal successors, (719), 448 states have internal predecessors, (719), 99 states have call successors, (99), 25 states have call predecessors, (99), 25 states have return successors, (99), 97 states have call predecessors, (99), 99 states have call successors, (99) Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:36,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:36,668 INFO L93 Difference]: Finished difference Result 1109 states and 1834 transitions. [2025-03-03 14:12:36,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:36,678 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 103 [2025-03-03 14:12:36,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:36,687 INFO L225 Difference]: With dead ends: 1109 [2025-03-03 14:12:36,687 INFO L226 Difference]: Without dead ends: 553 [2025-03-03 14:12:36,693 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 [2025-03-03 14:12:36,696 INFO L435 NwaCegarLoop]: 901 mSDtfsCounter, 6 mSDsluCounter, 1796 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2697 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 [2025-03-03 14:12:36,698 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2697 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:36,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-03 14:12:36,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-03 14:12:36,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6565420560747663) internal successors, (709), 443 states have internal predecessors, (709), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:36,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 906 transitions. [2025-03-03 14:12:36,767 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 906 transitions. Word has length 103 [2025-03-03 14:12:36,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:36,767 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 906 transitions. [2025-03-03 14:12:36,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:36,768 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 906 transitions. [2025-03-03 14:12:36,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-03 14:12:36,773 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:36,773 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:36,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 14:12:36,773 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:36,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:36,774 INFO L85 PathProgramCache]: Analyzing trace with hash -238178301, now seen corresponding path program 1 times [2025-03-03 14:12:36,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:36,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119440120] [2025-03-03 14:12:36,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:36,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:36,793 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-03 14:12:36,803 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-03 14:12:36,803 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:36,803 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:36,939 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:36,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:36,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119440120] [2025-03-03 14:12:36,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [119440120] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:36,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:36,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:36,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013696326] [2025-03-03 14:12:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:36,941 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:36,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:36,942 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:36,942 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:36,942 INFO L87 Difference]: Start difference. First operand 553 states and 906 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:37,013 INFO L93 Difference]: Finished difference Result 1089 states and 1789 transitions. [2025-03-03 14:12:37,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:37,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 104 [2025-03-03 14:12:37,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:37,019 INFO L225 Difference]: With dead ends: 1089 [2025-03-03 14:12:37,019 INFO L226 Difference]: Without dead ends: 553 [2025-03-03 14:12:37,023 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 [2025-03-03 14:12:37,023 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 4 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2669 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 [2025-03-03 14:12:37,024 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2669 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:37,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-03 14:12:37,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-03 14:12:37,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6542056074766356) internal successors, (708), 443 states have internal predecessors, (708), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:37,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 905 transitions. [2025-03-03 14:12:37,061 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 905 transitions. Word has length 104 [2025-03-03 14:12:37,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:37,061 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 905 transitions. [2025-03-03 14:12:37,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 states have internal predecessors, (59), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,061 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 905 transitions. [2025-03-03 14:12:37,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-03 14:12:37,064 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:37,064 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:37,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 14:12:37,065 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:37,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:37,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1487842254, now seen corresponding path program 1 times [2025-03-03 14:12:37,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:37,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141292468] [2025-03-03 14:12:37,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:37,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:37,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-03 14:12:37,098 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-03 14:12:37,099 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:37,099 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:37,196 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:37,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:37,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141292468] [2025-03-03 14:12:37,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141292468] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:37,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:37,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094905015] [2025-03-03 14:12:37,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:37,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:37,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:37,199 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:37,199 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:37,199 INFO L87 Difference]: Start difference. First operand 553 states and 905 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:37,267 INFO L93 Difference]: Finished difference Result 1089 states and 1788 transitions. [2025-03-03 14:12:37,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:37,268 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 105 [2025-03-03 14:12:37,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:37,271 INFO L225 Difference]: With dead ends: 1089 [2025-03-03 14:12:37,272 INFO L226 Difference]: Without dead ends: 553 [2025-03-03 14:12:37,274 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 [2025-03-03 14:12:37,276 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 3 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2669 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 [2025-03-03 14:12:37,276 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2669 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:37,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-03 14:12:37,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-03 14:12:37,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6518691588785046) internal successors, (707), 443 states have internal predecessors, (707), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:37,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 904 transitions. [2025-03-03 14:12:37,306 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 904 transitions. Word has length 105 [2025-03-03 14:12:37,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:37,306 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 904 transitions. [2025-03-03 14:12:37,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,307 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 904 transitions. [2025-03-03 14:12:37,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-03 14:12:37,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:37,309 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:37,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 14:12:37,310 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:37,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:37,310 INFO L85 PathProgramCache]: Analyzing trace with hash 29163456, now seen corresponding path program 1 times [2025-03-03 14:12:37,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:37,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2053558832] [2025-03-03 14:12:37,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:37,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:37,325 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-03 14:12:37,331 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-03 14:12:37,331 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:37,331 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:37,427 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:37,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:37,430 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2053558832] [2025-03-03 14:12:37,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2053558832] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:37,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:37,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:37,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594513165] [2025-03-03 14:12:37,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:37,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:37,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:37,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:37,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:37,432 INFO L87 Difference]: Start difference. First operand 553 states and 904 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:37,483 INFO L93 Difference]: Finished difference Result 1089 states and 1787 transitions. [2025-03-03 14:12:37,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:37,484 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 106 [2025-03-03 14:12:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:37,487 INFO L225 Difference]: With dead ends: 1089 [2025-03-03 14:12:37,488 INFO L226 Difference]: Without dead ends: 553 [2025-03-03 14:12:37,490 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 [2025-03-03 14:12:37,491 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 2 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2669 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 [2025-03-03 14:12:37,492 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2669 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:37,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-03 14:12:37,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-03 14:12:37,507 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.6495327102803738) internal successors, (706), 443 states have internal predecessors, (706), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:37,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 903 transitions. [2025-03-03 14:12:37,512 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 903 transitions. Word has length 106 [2025-03-03 14:12:37,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:37,512 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 903 transitions. [2025-03-03 14:12:37,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,512 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 903 transitions. [2025-03-03 14:12:37,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-03 14:12:37,515 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:37,515 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:37,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 14:12:37,515 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:37,515 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:37,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1370947477, now seen corresponding path program 1 times [2025-03-03 14:12:37,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:37,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287858816] [2025-03-03 14:12:37,516 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:37,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:37,530 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-03 14:12:37,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-03 14:12:37,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:37,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:37,615 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:37,616 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:37,616 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287858816] [2025-03-03 14:12:37,616 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287858816] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:37,616 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:37,616 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:37,616 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182693596] [2025-03-03 14:12:37,616 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:37,617 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:37,617 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:37,617 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:37,617 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:37,617 INFO L87 Difference]: Start difference. First operand 553 states and 903 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:37,658 INFO L93 Difference]: Finished difference Result 1089 states and 1786 transitions. [2025-03-03 14:12:37,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:37,659 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 107 [2025-03-03 14:12:37,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:37,663 INFO L225 Difference]: With dead ends: 1089 [2025-03-03 14:12:37,663 INFO L226 Difference]: Without dead ends: 553 [2025-03-03 14:12:37,665 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 [2025-03-03 14:12:37,666 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 1 mSDsluCounter, 1777 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2669 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 [2025-03-03 14:12:37,667 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2669 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:37,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2025-03-03 14:12:37,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 553. [2025-03-03 14:12:37,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 553 states, 428 states have (on average 1.647196261682243) internal successors, (705), 443 states have internal predecessors, (705), 99 states have call successors, (99), 26 states have call predecessors, (99), 25 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 553 states to 553 states and 902 transitions. [2025-03-03 14:12:37,698 INFO L78 Accepts]: Start accepts. Automaton has 553 states and 902 transitions. Word has length 107 [2025-03-03 14:12:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 553 states and 902 transitions. [2025-03-03 14:12:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 553 states and 902 transitions. [2025-03-03 14:12:37,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-03 14:12:37,701 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:37,701 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:37,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 14:12:37,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:37,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:37,702 INFO L85 PathProgramCache]: Analyzing trace with hash -955454595, now seen corresponding path program 1 times [2025-03-03 14:12:37,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:37,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496065396] [2025-03-03 14:12:37,702 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:37,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:37,717 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 14:12:37,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 14:12:37,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:37,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:37,884 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:37,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:37,884 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496065396] [2025-03-03 14:12:37,884 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496065396] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:37,884 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:37,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 14:12:37,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405702510] [2025-03-03 14:12:37,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:37,885 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:12:37,885 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:37,885 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:12:37,886 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:37,886 INFO L87 Difference]: Start difference. First operand 553 states and 902 transitions. Second operand has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-03 14:12:37,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:37,967 INFO L93 Difference]: Finished difference Result 1100 states and 1803 transitions. [2025-03-03 14:12:37,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:37,968 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 108 [2025-03-03 14:12:37,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:37,971 INFO L225 Difference]: With dead ends: 1100 [2025-03-03 14:12:37,971 INFO L226 Difference]: Without dead ends: 568 [2025-03-03 14:12:37,973 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 [2025-03-03 14:12:37,974 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 91 mSDsluCounter, 4360 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5249 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:37,974 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5249 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:37,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-03 14:12:37,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 566. [2025-03-03 14:12:37,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 438 states have (on average 1.643835616438356) internal successors, (720), 455 states have internal predecessors, (720), 100 states have call successors, (100), 26 states have call predecessors, (100), 27 states have return successors, (102), 97 states have call predecessors, (102), 99 states have call successors, (102) [2025-03-03 14:12:37,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 922 transitions. [2025-03-03 14:12:37,994 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 922 transitions. Word has length 108 [2025-03-03 14:12:37,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:37,994 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 922 transitions. [2025-03-03 14:12:37,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-03 14:12:37,994 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 922 transitions. [2025-03-03 14:12:37,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-03 14:12:37,997 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:37,997 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:37,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 14:12:37,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:37,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:37,998 INFO L85 PathProgramCache]: Analyzing trace with hash -969704740, now seen corresponding path program 1 times [2025-03-03 14:12:37,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:37,998 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120263410] [2025-03-03 14:12:37,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:37,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:38,013 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-03 14:12:38,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-03 14:12:38,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:38,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:38,090 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:38,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:38,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120263410] [2025-03-03 14:12:38,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120263410] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:38,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:38,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:38,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [179922829] [2025-03-03 14:12:38,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:38,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:38,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:38,092 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:38,092 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:38,092 INFO L87 Difference]: Start difference. First operand 566 states and 922 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:38,143 INFO L93 Difference]: Finished difference Result 1107 states and 1814 transitions. [2025-03-03 14:12:38,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:38,143 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 108 [2025-03-03 14:12:38,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:38,147 INFO L225 Difference]: With dead ends: 1107 [2025-03-03 14:12:38,147 INFO L226 Difference]: Without dead ends: 562 [2025-03-03 14:12:38,150 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 [2025-03-03 14:12:38,150 INFO L435 NwaCegarLoop]: 890 mSDtfsCounter, 1 mSDsluCounter, 1774 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2664 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 [2025-03-03 14:12:38,150 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2664 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:38,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 562 states. [2025-03-03 14:12:38,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 562 to 562. [2025-03-03 14:12:38,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 562 states, 436 states have (on average 1.6444954128440368) internal successors, (717), 452 states have internal predecessors, (717), 99 states have call successors, (99), 26 states have call predecessors, (99), 26 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2025-03-03 14:12:38,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 562 states to 562 states and 915 transitions. [2025-03-03 14:12:38,170 INFO L78 Accepts]: Start accepts. Automaton has 562 states and 915 transitions. Word has length 108 [2025-03-03 14:12:38,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:38,170 INFO L471 AbstractCegarLoop]: Abstraction has 562 states and 915 transitions. [2025-03-03 14:12:38,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,171 INFO L276 IsEmpty]: Start isEmpty. Operand 562 states and 915 transitions. [2025-03-03 14:12:38,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-03 14:12:38,173 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:38,174 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:38,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 14:12:38,174 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:38,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:38,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1364868970, now seen corresponding path program 1 times [2025-03-03 14:12:38,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:38,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670780260] [2025-03-03 14:12:38,175 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:38,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:38,190 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-03 14:12:38,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-03 14:12:38,197 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:38,197 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:38,294 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:38,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:38,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670780260] [2025-03-03 14:12:38,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670780260] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:38,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:38,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:38,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595420824] [2025-03-03 14:12:38,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:38,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:38,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:38,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:38,296 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:38,296 INFO L87 Difference]: Start difference. First operand 562 states and 915 transitions. Second operand has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:38,496 INFO L93 Difference]: Finished difference Result 1150 states and 1886 transitions. [2025-03-03 14:12:38,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:38,498 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 109 [2025-03-03 14:12:38,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:38,501 INFO L225 Difference]: With dead ends: 1150 [2025-03-03 14:12:38,501 INFO L226 Difference]: Without dead ends: 594 [2025-03-03 14:12:38,504 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 [2025-03-03 14:12:38,505 INFO L435 NwaCegarLoop]: 864 mSDtfsCounter, 72 mSDsluCounter, 3377 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4241 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 [2025-03-03 14:12:38,505 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4241 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 14:12:38,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 594 states. [2025-03-03 14:12:38,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 594 to 567. [2025-03-03 14:12:38,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6303854875283448) internal successors, (719), 456 states have internal predecessors, (719), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 916 transitions. [2025-03-03 14:12:38,529 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 916 transitions. Word has length 109 [2025-03-03 14:12:38,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:38,529 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 916 transitions. [2025-03-03 14:12:38,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,529 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 916 transitions. [2025-03-03 14:12:38,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-03 14:12:38,532 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:38,532 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:38,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 14:12:38,532 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:38,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:38,532 INFO L85 PathProgramCache]: Analyzing trace with hash 233282228, now seen corresponding path program 1 times [2025-03-03 14:12:38,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:38,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065176091] [2025-03-03 14:12:38,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:38,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:38,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-03 14:12:38,555 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-03 14:12:38,556 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:38,556 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:38,668 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:38,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:38,668 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065176091] [2025-03-03 14:12:38,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065176091] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:38,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:38,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:38,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877786646] [2025-03-03 14:12:38,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:38,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:38,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:38,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:38,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:38,670 INFO L87 Difference]: Start difference. First operand 567 states and 916 transitions. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:38,829 INFO L93 Difference]: Finished difference Result 1101 states and 1781 transitions. [2025-03-03 14:12:38,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:38,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 110 [2025-03-03 14:12:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:38,833 INFO L225 Difference]: With dead ends: 1101 [2025-03-03 14:12:38,833 INFO L226 Difference]: Without dead ends: 585 [2025-03-03 14:12:38,836 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 [2025-03-03 14:12:38,836 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 56 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4218 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 [2025-03-03 14:12:38,836 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4218 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:38,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2025-03-03 14:12:38,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 567. [2025-03-03 14:12:38,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6213151927437641) internal successors, (715), 456 states have internal predecessors, (715), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:38,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 912 transitions. [2025-03-03 14:12:38,852 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 912 transitions. Word has length 110 [2025-03-03 14:12:38,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:38,852 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 912 transitions. [2025-03-03 14:12:38,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:38,852 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 912 transitions. [2025-03-03 14:12:38,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-03 14:12:38,854 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:38,854 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:38,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 14:12:38,854 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:38,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:38,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1014305639, now seen corresponding path program 1 times [2025-03-03 14:12:38,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:38,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071503362] [2025-03-03 14:12:38,855 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:38,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:38,868 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-03 14:12:38,874 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-03 14:12:38,874 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:38,874 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:38,958 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:38,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:38,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071503362] [2025-03-03 14:12:38,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071503362] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:38,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:38,959 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:38,959 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130439835] [2025-03-03 14:12:38,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:38,959 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:38,959 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:38,960 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:38,960 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:38,960 INFO L87 Difference]: Start difference. First operand 567 states and 912 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:39,109 INFO L93 Difference]: Finished difference Result 1101 states and 1777 transitions. [2025-03-03 14:12:39,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:39,109 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 111 [2025-03-03 14:12:39,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:39,113 INFO L225 Difference]: With dead ends: 1101 [2025-03-03 14:12:39,113 INFO L226 Difference]: Without dead ends: 585 [2025-03-03 14:12:39,115 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 [2025-03-03 14:12:39,116 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 55 mSDsluCounter, 3361 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4213 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 [2025-03-03 14:12:39,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4213 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:39,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 585 states. [2025-03-03 14:12:39,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 585 to 567. [2025-03-03 14:12:39,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 441 states have (on average 1.6122448979591837) internal successors, (711), 456 states have internal predecessors, (711), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:39,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 908 transitions. [2025-03-03 14:12:39,133 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 908 transitions. Word has length 111 [2025-03-03 14:12:39,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:39,133 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 908 transitions. [2025-03-03 14:12:39,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,133 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 908 transitions. [2025-03-03 14:12:39,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-03 14:12:39,136 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:39,136 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:39,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 14:12:39,136 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:39,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:39,136 INFO L85 PathProgramCache]: Analyzing trace with hash 860528200, now seen corresponding path program 1 times [2025-03-03 14:12:39,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:39,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181892280] [2025-03-03 14:12:39,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:39,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:39,158 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-03 14:12:39,163 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-03 14:12:39,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:39,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:39,252 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:39,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:39,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181892280] [2025-03-03 14:12:39,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181892280] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:39,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:39,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 14:12:39,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520856752] [2025-03-03 14:12:39,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:39,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:12:39,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:39,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:12:39,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:39,254 INFO L87 Difference]: Start difference. First operand 567 states and 908 transitions. Second operand has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-03 14:12:39,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:39,317 INFO L93 Difference]: Finished difference Result 1092 states and 1759 transitions. [2025-03-03 14:12:39,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:39,317 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 111 [2025-03-03 14:12:39,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:39,320 INFO L225 Difference]: With dead ends: 1092 [2025-03-03 14:12:39,321 INFO L226 Difference]: Without dead ends: 555 [2025-03-03 14:12:39,323 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 [2025-03-03 14:12:39,323 INFO L435 NwaCegarLoop]: 878 mSDtfsCounter, 94 mSDsluCounter, 4294 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5172 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 [2025-03-03 14:12:39,324 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5172 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:39,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2025-03-03 14:12:39,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2025-03-03 14:12:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6047619047619048) internal successors, (674), 435 states have internal predecessors, (674), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:39,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 871 transitions. [2025-03-03 14:12:39,339 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 871 transitions. Word has length 111 [2025-03-03 14:12:39,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:39,339 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 871 transitions. [2025-03-03 14:12:39,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 3 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-03 14:12:39,339 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 871 transitions. [2025-03-03 14:12:39,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-03 14:12:39,341 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:39,341 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:39,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 14:12:39,342 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:39,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:39,342 INFO L85 PathProgramCache]: Analyzing trace with hash -285491305, now seen corresponding path program 1 times [2025-03-03 14:12:39,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:39,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143181996] [2025-03-03 14:12:39,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:39,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:39,355 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-03 14:12:39,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-03 14:12:39,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:39,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:39,438 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:39,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:39,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143181996] [2025-03-03 14:12:39,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143181996] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:39,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:39,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:39,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645964770] [2025-03-03 14:12:39,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:39,439 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:39,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:39,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:39,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:39,440 INFO L87 Difference]: Start difference. First operand 546 states and 871 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:39,535 INFO L93 Difference]: Finished difference Result 1071 states and 1722 transitions. [2025-03-03 14:12:39,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:39,536 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 112 [2025-03-03 14:12:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:39,539 INFO L225 Difference]: With dead ends: 1071 [2025-03-03 14:12:39,539 INFO L226 Difference]: Without dead ends: 555 [2025-03-03 14:12:39,541 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 [2025-03-03 14:12:39,542 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 39 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4218 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 [2025-03-03 14:12:39,542 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4218 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:39,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2025-03-03 14:12:39,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2025-03-03 14:12:39,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6023809523809525) internal successors, (673), 435 states have internal predecessors, (673), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:39,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 870 transitions. [2025-03-03 14:12:39,556 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 870 transitions. Word has length 112 [2025-03-03 14:12:39,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:39,556 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 870 transitions. [2025-03-03 14:12:39,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,557 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 870 transitions. [2025-03-03 14:12:39,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-03 14:12:39,559 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:39,559 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:39,559 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 14:12:39,559 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:39,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:39,559 INFO L85 PathProgramCache]: Analyzing trace with hash 1582249116, now seen corresponding path program 1 times [2025-03-03 14:12:39,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:39,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543498267] [2025-03-03 14:12:39,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:39,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:39,572 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-03 14:12:39,577 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-03 14:12:39,578 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:39,578 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:39,649 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:39,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:39,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543498267] [2025-03-03 14:12:39,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543498267] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:39,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:39,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:39,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194492602] [2025-03-03 14:12:39,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:39,650 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:39,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:39,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:39,651 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:39,651 INFO L87 Difference]: Start difference. First operand 546 states and 870 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:39,733 INFO L93 Difference]: Finished difference Result 1071 states and 1721 transitions. [2025-03-03 14:12:39,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:39,734 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 113 [2025-03-03 14:12:39,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:39,737 INFO L225 Difference]: With dead ends: 1071 [2025-03-03 14:12:39,737 INFO L226 Difference]: Without dead ends: 555 [2025-03-03 14:12:39,739 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 [2025-03-03 14:12:39,739 INFO L435 NwaCegarLoop]: 853 mSDtfsCounter, 38 mSDsluCounter, 3365 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4218 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 [2025-03-03 14:12:39,740 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4218 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:39,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 555 states. [2025-03-03 14:12:39,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 555 to 546. [2025-03-03 14:12:39,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 546 states, 420 states have (on average 1.6) internal successors, (672), 435 states have internal predecessors, (672), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:39,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 546 states to 546 states and 869 transitions. [2025-03-03 14:12:39,756 INFO L78 Accepts]: Start accepts. Automaton has 546 states and 869 transitions. Word has length 113 [2025-03-03 14:12:39,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:39,756 INFO L471 AbstractCegarLoop]: Abstraction has 546 states and 869 transitions. [2025-03-03 14:12:39,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (13), 2 states have call predecessors, (13), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,757 INFO L276 IsEmpty]: Start isEmpty. Operand 546 states and 869 transitions. [2025-03-03 14:12:39,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2025-03-03 14:12:39,759 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:39,759 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:39,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 14:12:39,759 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:39,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:39,760 INFO L85 PathProgramCache]: Analyzing trace with hash 101992570, now seen corresponding path program 1 times [2025-03-03 14:12:39,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:39,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737177126] [2025-03-03 14:12:39,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:39,773 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 114 statements into 1 equivalence classes. [2025-03-03 14:12:39,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 114 of 114 statements. [2025-03-03 14:12:39,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:39,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:39,834 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2025-03-03 14:12:39,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:39,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737177126] [2025-03-03 14:12:39,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737177126] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:39,835 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:39,835 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:39,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740312814] [2025-03-03 14:12:39,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:39,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:39,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:39,836 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:39,836 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:39,836 INFO L87 Difference]: Start difference. First operand 546 states and 869 transitions. Second operand has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:39,891 INFO L93 Difference]: Finished difference Result 1058 states and 1700 transitions. [2025-03-03 14:12:39,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:39,892 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 114 [2025-03-03 14:12:39,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:39,896 INFO L225 Difference]: With dead ends: 1058 [2025-03-03 14:12:39,896 INFO L226 Difference]: Without dead ends: 548 [2025-03-03 14:12:39,898 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 [2025-03-03 14:12:39,898 INFO L435 NwaCegarLoop]: 832 mSDtfsCounter, 16 mSDsluCounter, 1648 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2480 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 [2025-03-03 14:12:39,898 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2480 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:39,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2025-03-03 14:12:39,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2025-03-03 14:12:39,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 422 states have (on average 1.59478672985782) internal successors, (673), 437 states have internal predecessors, (673), 99 states have call successors, (99), 27 states have call predecessors, (99), 26 states have return successors, (98), 96 states have call predecessors, (98), 98 states have call successors, (98) [2025-03-03 14:12:39,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 870 transitions. [2025-03-03 14:12:39,916 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 870 transitions. Word has length 114 [2025-03-03 14:12:39,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:39,917 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 870 transitions. [2025-03-03 14:12:39,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-03 14:12:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 870 transitions. [2025-03-03 14:12:39,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-03 14:12:39,920 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:39,920 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:39,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 14:12:39,920 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:39,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:39,920 INFO L85 PathProgramCache]: Analyzing trace with hash -152391473, now seen corresponding path program 1 times [2025-03-03 14:12:39,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:39,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215156168] [2025-03-03 14:12:39,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:39,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:39,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-03 14:12:39,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-03 14:12:39,943 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:39,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:40,030 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-03 14:12:40,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:40,030 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215156168] [2025-03-03 14:12:40,030 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215156168] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:40,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [995119150] [2025-03-03 14:12:40,031 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:40,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:40,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:40,033 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) [2025-03-03 14:12:40,035 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:12:40,153 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-03 14:12:40,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-03 14:12:40,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:40,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:40,274 INFO L256 TraceCheckSpWp]: Trace formula consists of 1212 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:40,279 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:40,376 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-03 14:12:40,376 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:40,377 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [995119150] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:40,377 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:40,377 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:40,377 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218144010] [2025-03-03 14:12:40,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:40,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:40,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:40,378 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:40,378 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:40,378 INFO L87 Difference]: Start difference. First operand 548 states and 870 transitions. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:40,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:40,831 INFO L93 Difference]: Finished difference Result 1061 states and 1729 transitions. [2025-03-03 14:12:40,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:40,831 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 115 [2025-03-03 14:12:40,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:40,834 INFO L225 Difference]: With dead ends: 1061 [2025-03-03 14:12:40,834 INFO L226 Difference]: Without dead ends: 556 [2025-03-03 14:12:40,837 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:40,838 INFO L435 NwaCegarLoop]: 831 mSDtfsCounter, 808 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 453 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 812 SdHoareTripleChecker+Valid, 2105 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 453 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:40,838 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [812 Valid, 2105 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 453 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:40,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states. [2025-03-03 14:12:40,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 556. [2025-03-03 14:12:40,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 556 states, 429 states have (on average 1.5967365967365967) internal successors, (685), 444 states have internal predecessors, (685), 99 states have call successors, (99), 28 states have call predecessors, (99), 27 states have return successors, (99), 96 states have call predecessors, (99), 98 states have call successors, (99) [2025-03-03 14:12:40,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 883 transitions. [2025-03-03 14:12:40,854 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 883 transitions. Word has length 115 [2025-03-03 14:12:40,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:40,854 INFO L471 AbstractCegarLoop]: Abstraction has 556 states and 883 transitions. [2025-03-03 14:12:40,855 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:40,855 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 883 transitions. [2025-03-03 14:12:40,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-03 14:12:40,857 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:40,857 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:40,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:41,057 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-03-03 14:12:41,057 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:41,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:41,058 INFO L85 PathProgramCache]: Analyzing trace with hash 2085480307, now seen corresponding path program 1 times [2025-03-03 14:12:41,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:41,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71929547] [2025-03-03 14:12:41,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:41,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:41,083 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 14:12:41,089 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 14:12:41,089 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:41,089 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:41,159 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 14:12:41,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71929547] [2025-03-03 14:12:41,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71929547] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:41,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [922574640] [2025-03-03 14:12:41,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:41,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:41,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:41,162 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) [2025-03-03 14:12:41,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:12:41,274 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-03 14:12:41,375 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-03 14:12:41,375 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:41,375 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:41,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:41,384 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:41,479 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 14:12:41,481 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:41,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [922574640] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:41,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:41,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:41,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342432929] [2025-03-03 14:12:41,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:41,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:41,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:41,482 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:41,482 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:41,483 INFO L87 Difference]: Start difference. First operand 556 states and 883 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:41,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:41,915 INFO L93 Difference]: Finished difference Result 1077 states and 1752 transitions. [2025-03-03 14:12:41,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:41,915 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 118 [2025-03-03 14:12:41,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:41,919 INFO L225 Difference]: With dead ends: 1077 [2025-03-03 14:12:41,919 INFO L226 Difference]: Without dead ends: 564 [2025-03-03 14:12:41,921 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:41,922 INFO L435 NwaCegarLoop]: 828 mSDtfsCounter, 809 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 816 SdHoareTripleChecker+Valid, 2102 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:41,922 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [816 Valid, 2102 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2025-03-03 14:12:41,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 564. [2025-03-03 14:12:41,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 564 states, 436 states have (on average 1.598623853211009) internal successors, (697), 451 states have internal predecessors, (697), 99 states have call successors, (99), 29 states have call predecessors, (99), 28 states have return successors, (100), 96 states have call predecessors, (100), 98 states have call successors, (100) [2025-03-03 14:12:41,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 896 transitions. [2025-03-03 14:12:41,939 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 896 transitions. Word has length 118 [2025-03-03 14:12:41,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:41,940 INFO L471 AbstractCegarLoop]: Abstraction has 564 states and 896 transitions. [2025-03-03 14:12:41,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:41,940 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 896 transitions. [2025-03-03 14:12:41,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-03 14:12:41,942 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:41,942 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:41,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-03 14:12:42,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-03 14:12:42,143 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:42,143 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:42,143 INFO L85 PathProgramCache]: Analyzing trace with hash 581216716, now seen corresponding path program 1 times [2025-03-03 14:12:42,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:42,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206596646] [2025-03-03 14:12:42,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:42,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:42,155 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-03 14:12:42,160 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-03 14:12:42,160 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:42,160 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:42,237 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:12:42,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206596646] [2025-03-03 14:12:42,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206596646] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:42,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905955228] [2025-03-03 14:12:42,238 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:42,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:42,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:42,240 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) [2025-03-03 14:12:42,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:12:42,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-03 14:12:42,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-03 14:12:42,439 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:42,439 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:42,442 INFO L256 TraceCheckSpWp]: Trace formula consists of 1218 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:42,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:42,519 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:12:42,520 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:42,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905955228] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:42,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:42,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:42,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598053834] [2025-03-03 14:12:42,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:42,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:42,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:42,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:42,522 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:42,522 INFO L87 Difference]: Start difference. First operand 564 states and 896 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:42,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:42,906 INFO L93 Difference]: Finished difference Result 1093 states and 1775 transitions. [2025-03-03 14:12:42,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:42,907 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 121 [2025-03-03 14:12:42,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:42,910 INFO L225 Difference]: With dead ends: 1093 [2025-03-03 14:12:42,910 INFO L226 Difference]: Without dead ends: 572 [2025-03-03 14:12:42,913 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:42,914 INFO L435 NwaCegarLoop]: 825 mSDtfsCounter, 801 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 2099 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:42,914 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [811 Valid, 2099 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 14:12:42,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2025-03-03 14:12:42,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 572. [2025-03-03 14:12:42,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 572 states, 443 states have (on average 1.600451467268623) internal successors, (709), 458 states have internal predecessors, (709), 99 states have call successors, (99), 30 states have call predecessors, (99), 29 states have return successors, (101), 96 states have call predecessors, (101), 98 states have call successors, (101) [2025-03-03 14:12:42,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 572 states to 572 states and 909 transitions. [2025-03-03 14:12:42,930 INFO L78 Accepts]: Start accepts. Automaton has 572 states and 909 transitions. Word has length 121 [2025-03-03 14:12:42,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:42,930 INFO L471 AbstractCegarLoop]: Abstraction has 572 states and 909 transitions. [2025-03-03 14:12:42,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:42,930 INFO L276 IsEmpty]: Start isEmpty. Operand 572 states and 909 transitions. [2025-03-03 14:12:42,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2025-03-03 14:12:42,932 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:42,932 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:42,940 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 14:12:43,133 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:43,133 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:43,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:43,134 INFO L85 PathProgramCache]: Analyzing trace with hash 1869246954, now seen corresponding path program 1 times [2025-03-03 14:12:43,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:43,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414288902] [2025-03-03 14:12:43,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:43,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:43,145 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-03 14:12:43,149 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-03 14:12:43,150 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:43,150 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-03 14:12:43,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:43,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414288902] [2025-03-03 14:12:43,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414288902] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:43,214 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1304812372] [2025-03-03 14:12:43,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:43,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:43,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:43,216 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) [2025-03-03 14:12:43,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:12:43,324 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 124 statements into 1 equivalence classes. [2025-03-03 14:12:43,414 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 124 of 124 statements. [2025-03-03 14:12:43,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:43,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:43,418 INFO L256 TraceCheckSpWp]: Trace formula consists of 1221 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:43,421 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:43,496 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-03 14:12:43,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:43,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1304812372] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:43,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:43,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:43,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164749344] [2025-03-03 14:12:43,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:43,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:43,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:43,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:43,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:43,497 INFO L87 Difference]: Start difference. First operand 572 states and 909 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:43,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:43,877 INFO L93 Difference]: Finished difference Result 1109 states and 1798 transitions. [2025-03-03 14:12:43,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:43,877 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 124 [2025-03-03 14:12:43,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:43,882 INFO L225 Difference]: With dead ends: 1109 [2025-03-03 14:12:43,882 INFO L226 Difference]: Without dead ends: 580 [2025-03-03 14:12:43,884 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:43,885 INFO L435 NwaCegarLoop]: 822 mSDtfsCounter, 782 mSDsluCounter, 1274 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 2096 SdHoareTripleChecker+Invalid, 468 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:43,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [795 Valid, 2096 Invalid, 468 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 14:12:43,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2025-03-03 14:12:43,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2025-03-03 14:12:43,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 450 states have (on average 1.6022222222222222) internal successors, (721), 465 states have internal predecessors, (721), 99 states have call successors, (99), 31 states have call predecessors, (99), 30 states have return successors, (102), 96 states have call predecessors, (102), 98 states have call successors, (102) [2025-03-03 14:12:43,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 922 transitions. [2025-03-03 14:12:43,903 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 922 transitions. Word has length 124 [2025-03-03 14:12:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:43,903 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 922 transitions. [2025-03-03 14:12:43,903 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 922 transitions. [2025-03-03 14:12:43,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-03 14:12:43,905 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:43,905 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:43,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:44,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-03 14:12:44,106 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:44,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:44,106 INFO L85 PathProgramCache]: Analyzing trace with hash -247283639, now seen corresponding path program 1 times [2025-03-03 14:12:44,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:44,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070351195] [2025-03-03 14:12:44,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:44,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:44,119 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-03 14:12:44,125 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-03 14:12:44,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:44,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:44,292 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:12:44,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070351195] [2025-03-03 14:12:44,293 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070351195] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:44,293 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448127931] [2025-03-03 14:12:44,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:44,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:44,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:44,295 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) [2025-03-03 14:12:44,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 14:12:44,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-03 14:12:44,492 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-03 14:12:44,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:44,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:44,496 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-03 14:12:44,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:44,612 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:12:44,612 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:44,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448127931] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:44,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:44,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-03 14:12:44,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653399562] [2025-03-03 14:12:44,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:44,613 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:44,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:44,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:44,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:44,614 INFO L87 Difference]: Start difference. First operand 580 states and 922 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:44,941 INFO L93 Difference]: Finished difference Result 1660 states and 2712 transitions. [2025-03-03 14:12:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 14:12:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2025-03-03 14:12:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:44,947 INFO L225 Difference]: With dead ends: 1660 [2025-03-03 14:12:44,947 INFO L226 Difference]: Without dead ends: 1123 [2025-03-03 14:12:44,949 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:12:44,950 INFO L435 NwaCegarLoop]: 892 mSDtfsCounter, 780 mSDsluCounter, 2377 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 3269 SdHoareTripleChecker+Invalid, 287 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:44,950 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 3269 Invalid, 287 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 14:12:44,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1123 states. [2025-03-03 14:12:44,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1123 to 1115. [2025-03-03 14:12:44,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 863 states have (on average 1.6164542294322133) internal successors, (1395), 894 states have internal predecessors, (1395), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2025-03-03 14:12:44,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1805 transitions. [2025-03-03 14:12:44,990 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1805 transitions. Word has length 127 [2025-03-03 14:12:44,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:44,990 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1805 transitions. [2025-03-03 14:12:44,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-03 14:12:44,990 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1805 transitions. [2025-03-03 14:12:44,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-03 14:12:44,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:44,993 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:45,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:45,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:45,194 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:45,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:45,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1961494128, now seen corresponding path program 1 times [2025-03-03 14:12:45,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:45,195 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379380660] [2025-03-03 14:12:45,195 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:45,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:45,206 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:45,214 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:45,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:45,214 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:45,404 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:12:45,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379380660] [2025-03-03 14:12:45,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379380660] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:45,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715155292] [2025-03-03 14:12:45,404 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:45,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:45,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:45,406 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) [2025-03-03 14:12:45,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-03 14:12:45,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:45,603 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:45,604 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:45,604 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:45,607 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 14:12:45,610 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:45,622 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:12:45,622 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:45,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715155292] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:45,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:45,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-03-03 14:12:45,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529350603] [2025-03-03 14:12:45,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:45,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:12:45,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:45,623 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:12:45,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:45,623 INFO L87 Difference]: Start difference. First operand 1115 states and 1805 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:45,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:45,687 INFO L93 Difference]: Finished difference Result 2715 states and 4463 transitions. [2025-03-03 14:12:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:12:45,687 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-03 14:12:45,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:45,696 INFO L225 Difference]: With dead ends: 2715 [2025-03-03 14:12:45,696 INFO L226 Difference]: Without dead ends: 1644 [2025-03-03 14:12:45,700 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:45,702 INFO L435 NwaCegarLoop]: 1606 mSDtfsCounter, 810 mSDsluCounter, 841 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 810 SdHoareTripleChecker+Valid, 2447 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 [2025-03-03 14:12:45,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [810 Valid, 2447 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:45,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1644 states. [2025-03-03 14:12:45,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1644 to 1115. [2025-03-03 14:12:45,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1115 states, 863 states have (on average 1.615295480880649) internal successors, (1394), 894 states have internal predecessors, (1394), 192 states have call successors, (192), 59 states have call predecessors, (192), 59 states have return successors, (218), 187 states have call predecessors, (218), 190 states have call successors, (218) [2025-03-03 14:12:45,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1115 states to 1115 states and 1804 transitions. [2025-03-03 14:12:45,743 INFO L78 Accepts]: Start accepts. Automaton has 1115 states and 1804 transitions. Word has length 132 [2025-03-03 14:12:45,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:45,744 INFO L471 AbstractCegarLoop]: Abstraction has 1115 states and 1804 transitions. [2025-03-03 14:12:45,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:45,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1115 states and 1804 transitions. [2025-03-03 14:12:45,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-03 14:12:45,747 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:45,747 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:45,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:45,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:45,947 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:45,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:45,948 INFO L85 PathProgramCache]: Analyzing trace with hash -1982673231, now seen corresponding path program 1 times [2025-03-03 14:12:45,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:45,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632911596] [2025-03-03 14:12:45,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:45,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:45,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:45,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:45,984 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:45,984 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:46,130 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:12:46,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:46,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632911596] [2025-03-03 14:12:46,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632911596] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:46,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219361528] [2025-03-03 14:12:46,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:46,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:46,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:46,133 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) [2025-03-03 14:12:46,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-03 14:12:46,238 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:46,330 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:46,330 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:46,330 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:46,335 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-03 14:12:46,338 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:46,416 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:12:46,417 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:46,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219361528] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:46,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:46,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-03 14:12:46,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825899540] [2025-03-03 14:12:46,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:46,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:46,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:46,418 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:46,419 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:46,419 INFO L87 Difference]: Start difference. First operand 1115 states and 1804 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:46,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:46,487 INFO L93 Difference]: Finished difference Result 2809 states and 4569 transitions. [2025-03-03 14:12:46,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:46,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-03 14:12:46,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:46,497 INFO L225 Difference]: With dead ends: 2809 [2025-03-03 14:12:46,497 INFO L226 Difference]: Without dead ends: 1739 [2025-03-03 14:12:46,502 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:12:46,503 INFO L435 NwaCegarLoop]: 937 mSDtfsCounter, 383 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 3657 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:46,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 3657 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:46,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1739 states. [2025-03-03 14:12:46,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1739 to 1739. [2025-03-03 14:12:46,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1351 states have (on average 1.5906735751295338) internal successors, (2149), 1386 states have internal predecessors, (2149), 288 states have call successors, (288), 99 states have call predecessors, (288), 99 states have return successors, (365), 279 states have call predecessors, (365), 284 states have call successors, (365) [2025-03-03 14:12:46,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2802 transitions. [2025-03-03 14:12:46,578 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2802 transitions. Word has length 132 [2025-03-03 14:12:46,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:46,578 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2802 transitions. [2025-03-03 14:12:46,578 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:46,579 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2802 transitions. [2025-03-03 14:12:46,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-03 14:12:46,582 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:46,582 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:46,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-03 14:12:46,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:46,783 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:46,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:46,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1704217202, now seen corresponding path program 1 times [2025-03-03 14:12:46,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:46,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248667711] [2025-03-03 14:12:46,784 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:46,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:46,796 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:46,804 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:46,804 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:46,804 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:46,943 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:12:46,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:46,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248667711] [2025-03-03 14:12:46,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [248667711] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:46,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860507958] [2025-03-03 14:12:46,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:46,944 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:46,944 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:46,946 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) [2025-03-03 14:12:46,947 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-03 14:12:47,052 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:47,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:47,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,142 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,145 INFO L256 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:12:47,147 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:47,214 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:12:47,214 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:47,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860507958] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:47,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-03-03 14:12:47,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859745794] [2025-03-03 14:12:47,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:12:47,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,215 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:12:47,215 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:47,215 INFO L87 Difference]: Start difference. First operand 1739 states and 2802 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:47,269 INFO L93 Difference]: Finished difference Result 3152 states and 5070 transitions. [2025-03-03 14:12:47,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:12:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-03 14:12:47,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:47,276 INFO L225 Difference]: With dead ends: 3152 [2025-03-03 14:12:47,277 INFO L226 Difference]: Without dead ends: 1458 [2025-03-03 14:12:47,284 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:47,285 INFO L435 NwaCegarLoop]: 956 mSDtfsCounter, 545 mSDsluCounter, 429 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 545 SdHoareTripleChecker+Valid, 1385 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:47,286 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [545 Valid, 1385 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:47,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1458 states. [2025-03-03 14:12:47,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1458 to 1458. [2025-03-03 14:12:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 1129 states have (on average 1.5713020372010629) internal successors, (1774), 1156 states have internal predecessors, (1774), 241 states have call successors, (241), 89 states have call predecessors, (241), 87 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:47,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 2311 transitions. [2025-03-03 14:12:47,334 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 2311 transitions. Word has length 132 [2025-03-03 14:12:47,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,334 INFO L471 AbstractCegarLoop]: Abstraction has 1458 states and 2311 transitions. [2025-03-03 14:12:47,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-03 14:12:47,338 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 2311 transitions. [2025-03-03 14:12:47,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-03 14:12:47,343 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,343 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,350 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-03 14:12:47,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2025-03-03 14:12:47,544 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,544 INFO L85 PathProgramCache]: Analyzing trace with hash 990877276, now seen corresponding path program 1 times [2025-03-03 14:12:47,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586442062] [2025-03-03 14:12:47,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-03 14:12:47,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-03 14:12:47,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,706 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-03 14:12:47,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:47,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586442062] [2025-03-03 14:12:47,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586442062] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:47,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484191343] [2025-03-03 14:12:47,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:47,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:47,708 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) [2025-03-03 14:12:47,709 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-03 14:12:47,822 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-03 14:12:47,951 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-03 14:12:47,951 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,951 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,955 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:12:47,958 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:47,984 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-03 14:12:47,985 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:47,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1484191343] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:47,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:12:47,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690433829] [2025-03-03 14:12:47,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:47,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:47,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:12:47,986 INFO L87 Difference]: Start difference. First operand 1458 states and 2311 transitions. Second operand has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:48,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:48,175 INFO L93 Difference]: Finished difference Result 2961 states and 4754 transitions. [2025-03-03 14:12:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:48,176 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2025-03-03 14:12:48,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:48,184 INFO L225 Difference]: With dead ends: 2961 [2025-03-03 14:12:48,185 INFO L226 Difference]: Without dead ends: 1548 [2025-03-03 14:12:48,190 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:48,191 INFO L435 NwaCegarLoop]: 789 mSDtfsCounter, 144 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2344 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 [2025-03-03 14:12:48,191 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2344 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:48,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2025-03-03 14:12:48,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1536. [2025-03-03 14:12:48,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1536 states, 1205 states have (on average 1.5933609958506223) internal successors, (1920), 1232 states have internal predecessors, (1920), 241 states have call successors, (241), 91 states have call predecessors, (241), 89 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:48,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1536 states to 1536 states and 2457 transitions. [2025-03-03 14:12:48,243 INFO L78 Accepts]: Start accepts. Automaton has 1536 states and 2457 transitions. Word has length 155 [2025-03-03 14:12:48,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:48,243 INFO L471 AbstractCegarLoop]: Abstraction has 1536 states and 2457 transitions. [2025-03-03 14:12:48,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:48,244 INFO L276 IsEmpty]: Start isEmpty. Operand 1536 states and 2457 transitions. [2025-03-03 14:12:48,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-03 14:12:48,247 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:48,247 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:48,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-03 14:12:48,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:48,447 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:48,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:48,448 INFO L85 PathProgramCache]: Analyzing trace with hash -1209228788, now seen corresponding path program 1 times [2025-03-03 14:12:48,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:48,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738994399] [2025-03-03 14:12:48,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:48,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-03 14:12:48,463 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-03 14:12:48,463 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:48,463 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,603 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-03 14:12:48,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:48,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738994399] [2025-03-03 14:12:48,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738994399] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:48,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1377045521] [2025-03-03 14:12:48,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:48,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:48,605 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) [2025-03-03 14:12:48,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-03 14:12:48,730 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-03 14:12:48,816 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-03 14:12:48,816 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:48,816 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,820 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:12:48,822 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:48,845 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 14:12:48,845 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:48,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1377045521] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:48,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:48,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:12:48,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937689727] [2025-03-03 14:12:48,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:48,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:48,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:48,847 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:48,847 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:12:48,847 INFO L87 Difference]: Start difference. First operand 1536 states and 2457 transitions. Second operand has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:49,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,001 INFO L93 Difference]: Finished difference Result 3123 states and 5048 transitions. [2025-03-03 14:12:49,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:49,001 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 160 [2025-03-03 14:12:49,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,009 INFO L225 Difference]: With dead ends: 3123 [2025-03-03 14:12:49,010 INFO L226 Difference]: Without dead ends: 1632 [2025-03-03 14:12:49,014 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:49,014 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 142 mSDsluCounter, 1553 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2341 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 [2025-03-03 14:12:49,015 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2341 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:49,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1632 states. [2025-03-03 14:12:49,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1632 to 1614. [2025-03-03 14:12:49,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1614 states, 1281 states have (on average 1.6128024980483997) internal successors, (2066), 1308 states have internal predecessors, (2066), 241 states have call successors, (241), 93 states have call predecessors, (241), 91 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:49,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1614 states to 1614 states and 2603 transitions. [2025-03-03 14:12:49,057 INFO L78 Accepts]: Start accepts. Automaton has 1614 states and 2603 transitions. Word has length 160 [2025-03-03 14:12:49,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,057 INFO L471 AbstractCegarLoop]: Abstraction has 1614 states and 2603 transitions. [2025-03-03 14:12:49,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.5) internal successors, (114), 4 states have internal predecessors, (114), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:49,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1614 states and 2603 transitions. [2025-03-03 14:12:49,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-03 14:12:49,061 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,061 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-03 14:12:49,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-03 14:12:49,262 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,262 INFO L85 PathProgramCache]: Analyzing trace with hash 1356718252, now seen corresponding path program 1 times [2025-03-03 14:12:49,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887996116] [2025-03-03 14:12:49,262 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,273 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-03 14:12:49,278 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-03 14:12:49,279 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,279 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,428 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-03 14:12:49,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887996116] [2025-03-03 14:12:49,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887996116] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:49,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1029184039] [2025-03-03 14:12:49,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:49,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:49,430 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) [2025-03-03 14:12:49,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-03 14:12:49,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-03 14:12:49,616 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-03 14:12:49,616 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,616 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,620 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:12:49,622 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:49,645 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:12:49,645 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:49,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1029184039] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:49,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:12:49,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038987311] [2025-03-03 14:12:49,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:49,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:49,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:12:49,647 INFO L87 Difference]: Start difference. First operand 1614 states and 2603 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:49,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,793 INFO L93 Difference]: Finished difference Result 3285 states and 5342 transitions. [2025-03-03 14:12:49,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:49,794 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2025-03-03 14:12:49,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,801 INFO L225 Difference]: With dead ends: 3285 [2025-03-03 14:12:49,802 INFO L226 Difference]: Without dead ends: 1716 [2025-03-03 14:12:49,806 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:49,806 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 140 mSDsluCounter, 1551 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2338 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 [2025-03-03 14:12:49,807 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2338 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:49,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1716 states. [2025-03-03 14:12:49,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1716 to 1692. [2025-03-03 14:12:49,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1692 states, 1357 states have (on average 1.630066322770818) internal successors, (2212), 1384 states have internal predecessors, (2212), 241 states have call successors, (241), 95 states have call predecessors, (241), 93 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:49,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1692 states to 1692 states and 2749 transitions. [2025-03-03 14:12:49,850 INFO L78 Accepts]: Start accepts. Automaton has 1692 states and 2749 transitions. Word has length 164 [2025-03-03 14:12:49,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,851 INFO L471 AbstractCegarLoop]: Abstraction has 1692 states and 2749 transitions. [2025-03-03 14:12:49,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:49,851 INFO L276 IsEmpty]: Start isEmpty. Operand 1692 states and 2749 transitions. [2025-03-03 14:12:49,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-03 14:12:49,854 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,855 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-03 14:12:50,059 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-03 14:12:50,059 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:50,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:50,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1944101638, now seen corresponding path program 1 times [2025-03-03 14:12:50,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:50,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286516954] [2025-03-03 14:12:50,060 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:50,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:50,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-03-03 14:12:50,075 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-03-03 14:12:50,075 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:50,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:50,225 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-03 14:12:50,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:50,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286516954] [2025-03-03 14:12:50,226 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286516954] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:50,226 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632130037] [2025-03-03 14:12:50,226 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:50,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:50,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:50,228 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) [2025-03-03 14:12:50,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-03 14:12:50,344 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-03-03 14:12:50,438 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-03-03 14:12:50,438 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:50,438 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:50,441 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:12:50,444 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:50,468 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:12:50,468 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:50,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632130037] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:50,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:50,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:12:50,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479080919] [2025-03-03 14:12:50,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:50,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:50,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:50,469 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:50,469 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:12:50,469 INFO L87 Difference]: Start difference. First operand 1692 states and 2749 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:50,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:50,625 INFO L93 Difference]: Finished difference Result 3447 states and 5636 transitions. [2025-03-03 14:12:50,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:50,627 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2025-03-03 14:12:50,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:50,638 INFO L225 Difference]: With dead ends: 3447 [2025-03-03 14:12:50,639 INFO L226 Difference]: Without dead ends: 1800 [2025-03-03 14:12:50,646 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:50,647 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 138 mSDsluCounter, 1549 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2335 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 [2025-03-03 14:12:50,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2335 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:50,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1800 states. [2025-03-03 14:12:50,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1800 to 1770. [2025-03-03 14:12:50,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1770 states, 1433 states have (on average 1.6454989532449407) internal successors, (2358), 1460 states have internal predecessors, (2358), 241 states have call successors, (241), 97 states have call predecessors, (241), 95 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:50,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1770 states to 1770 states and 2895 transitions. [2025-03-03 14:12:50,696 INFO L78 Accepts]: Start accepts. Automaton has 1770 states and 2895 transitions. Word has length 167 [2025-03-03 14:12:50,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:50,697 INFO L471 AbstractCegarLoop]: Abstraction has 1770 states and 2895 transitions. [2025-03-03 14:12:50,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:50,697 INFO L276 IsEmpty]: Start isEmpty. Operand 1770 states and 2895 transitions. [2025-03-03 14:12:50,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-03 14:12:50,701 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:50,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:50,709 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:50,902 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-03 14:12:50,902 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:50,903 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:50,903 INFO L85 PathProgramCache]: Analyzing trace with hash 475331876, now seen corresponding path program 1 times [2025-03-03 14:12:50,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:50,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663424931] [2025-03-03 14:12:50,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:50,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:50,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-03 14:12:50,918 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-03 14:12:50,918 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:50,918 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:51,085 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-03 14:12:51,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:51,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663424931] [2025-03-03 14:12:51,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663424931] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:51,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914224944] [2025-03-03 14:12:51,086 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:51,086 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:51,086 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:51,088 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) [2025-03-03 14:12:51,090 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-03 14:12:51,218 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-03 14:12:51,312 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-03 14:12:51,312 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:51,312 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:51,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:12:51,318 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:51,350 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-03 14:12:51,350 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:51,350 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914224944] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:51,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:51,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:12:51,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336097038] [2025-03-03 14:12:51,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:51,351 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:51,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:51,351 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:51,351 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:12:51,352 INFO L87 Difference]: Start difference. First operand 1770 states and 2895 transitions. Second operand has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:51,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:51,514 INFO L93 Difference]: Finished difference Result 3609 states and 5930 transitions. [2025-03-03 14:12:51,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:51,519 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2025-03-03 14:12:51,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:51,527 INFO L225 Difference]: With dead ends: 3609 [2025-03-03 14:12:51,527 INFO L226 Difference]: Without dead ends: 1884 [2025-03-03 14:12:51,532 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:12:51,532 INFO L435 NwaCegarLoop]: 784 mSDtfsCounter, 136 mSDsluCounter, 1544 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2328 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 [2025-03-03 14:12:51,532 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2328 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:51,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1884 states. [2025-03-03 14:12:51,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1884 to 1848. [2025-03-03 14:12:51,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1848 states, 1509 states have (on average 1.659377070907886) internal successors, (2504), 1536 states have internal predecessors, (2504), 241 states have call successors, (241), 99 states have call predecessors, (241), 97 states have return successors, (296), 236 states have call predecessors, (296), 237 states have call successors, (296) [2025-03-03 14:12:51,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1848 states to 1848 states and 3041 transitions. [2025-03-03 14:12:51,575 INFO L78 Accepts]: Start accepts. Automaton has 1848 states and 3041 transitions. Word has length 169 [2025-03-03 14:12:51,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:51,576 INFO L471 AbstractCegarLoop]: Abstraction has 1848 states and 3041 transitions. [2025-03-03 14:12:51,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:51,576 INFO L276 IsEmpty]: Start isEmpty. Operand 1848 states and 3041 transitions. [2025-03-03 14:12:51,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-03 14:12:51,579 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:51,580 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:51,587 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-03 14:12:51,780 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-03 14:12:51,780 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:51,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:51,781 INFO L85 PathProgramCache]: Analyzing trace with hash -1800929464, now seen corresponding path program 1 times [2025-03-03 14:12:51,781 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:51,781 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863755103] [2025-03-03 14:12:51,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:51,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:51,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-03 14:12:51,798 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-03 14:12:51,798 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:51,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:51,928 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-03 14:12:51,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:51,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863755103] [2025-03-03 14:12:51,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863755103] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:51,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97225602] [2025-03-03 14:12:51,928 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:51,928 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:51,929 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:51,931 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) [2025-03-03 14:12:51,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-03 14:12:52,072 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-03 14:12:52,166 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-03 14:12:52,166 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:52,166 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:52,176 INFO L256 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-03 14:12:52,179 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:52,341 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-03 14:12:52,341 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:52,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97225602] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:52,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:52,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2025-03-03 14:12:52,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515441338] [2025-03-03 14:12:52,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:52,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 14:12:52,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:52,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 14:12:52,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:12:52,343 INFO L87 Difference]: Start difference. First operand 1848 states and 3041 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-03 14:12:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:54,281 INFO L93 Difference]: Finished difference Result 5743 states and 9598 transitions. [2025-03-03 14:12:54,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-03 14:12:54,281 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2025-03-03 14:12:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:54,297 INFO L225 Difference]: With dead ends: 5743 [2025-03-03 14:12:54,297 INFO L226 Difference]: Without dead ends: 3576 [2025-03-03 14:12:54,304 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2025-03-03 14:12:54,304 INFO L435 NwaCegarLoop]: 399 mSDtfsCounter, 1896 mSDsluCounter, 1935 mSDsCounter, 0 mSdLazyCounter, 4026 mSolverCounterSat, 452 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2005 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 4478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 452 IncrementalHoareTripleChecker+Valid, 4026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:54,304 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2005 Valid, 2334 Invalid, 4478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [452 Valid, 4026 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2025-03-03 14:12:54,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3576 states. [2025-03-03 14:12:54,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3576 to 3556. [2025-03-03 14:12:54,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3556 states, 2859 states have (on average 1.6624693948933194) internal successors, (4753), 2939 states have internal predecessors, (4753), 499 states have call successors, (499), 179 states have call predecessors, (499), 197 states have return successors, (641), 495 states have call predecessors, (641), 495 states have call successors, (641) [2025-03-03 14:12:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3556 states to 3556 states and 5893 transitions. [2025-03-03 14:12:54,395 INFO L78 Accepts]: Start accepts. Automaton has 3556 states and 5893 transitions. Word has length 169 [2025-03-03 14:12:54,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:54,395 INFO L471 AbstractCegarLoop]: Abstraction has 3556 states and 5893 transitions. [2025-03-03 14:12:54,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-03 14:12:54,395 INFO L276 IsEmpty]: Start isEmpty. Operand 3556 states and 5893 transitions. [2025-03-03 14:12:54,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-03 14:12:54,402 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:54,402 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:54,410 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:54,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:54,604 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:54,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:54,605 INFO L85 PathProgramCache]: Analyzing trace with hash -2069197959, now seen corresponding path program 1 times [2025-03-03 14:12:54,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:54,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119588061] [2025-03-03 14:12:54,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:54,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:54,619 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-03 14:12:54,623 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-03 14:12:54,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:54,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:54,707 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-03 14:12:54,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:54,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119588061] [2025-03-03 14:12:54,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119588061] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:54,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:54,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 14:12:54,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821785206] [2025-03-03 14:12:54,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:54,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 14:12:54,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:54,709 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 14:12:54,709 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:12:54,709 INFO L87 Difference]: Start difference. First operand 3556 states and 5893 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-03 14:12:54,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:54,861 INFO L93 Difference]: Finished difference Result 6938 states and 11526 transitions. [2025-03-03 14:12:54,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 14:12:54,861 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2025-03-03 14:12:54,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:54,875 INFO L225 Difference]: With dead ends: 6938 [2025-03-03 14:12:54,875 INFO L226 Difference]: Without dead ends: 3289 [2025-03-03 14:12:54,883 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 [2025-03-03 14:12:54,884 INFO L435 NwaCegarLoop]: 827 mSDtfsCounter, 33 mSDsluCounter, 4930 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5757 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 [2025-03-03 14:12:54,885 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5757 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:54,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3289 states. [2025-03-03 14:12:54,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3289 to 3277. [2025-03-03 14:12:54,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3277 states, 2680 states have (on average 1.682089552238806) internal successors, (4508), 2747 states have internal predecessors, (4508), 419 states have call successors, (419), 167 states have call predecessors, (419), 177 states have return successors, (511), 410 states have call predecessors, (511), 415 states have call successors, (511) [2025-03-03 14:12:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3277 states to 3277 states and 5438 transitions. [2025-03-03 14:12:54,960 INFO L78 Accepts]: Start accepts. Automaton has 3277 states and 5438 transitions. Word has length 172 [2025-03-03 14:12:54,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:54,961 INFO L471 AbstractCegarLoop]: Abstraction has 3277 states and 5438 transitions. [2025-03-03 14:12:54,961 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-03 14:12:54,961 INFO L276 IsEmpty]: Start isEmpty. Operand 3277 states and 5438 transitions. [2025-03-03 14:12:54,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2025-03-03 14:12:54,972 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:54,972 INFO L218 NwaCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 7, 7, 6, 6, 5, 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, 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, 1, 1, 1, 1] [2025-03-03 14:12:54,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2025-03-03 14:12:54,973 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:54,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:54,973 INFO L85 PathProgramCache]: Analyzing trace with hash -1563002863, now seen corresponding path program 1 times [2025-03-03 14:12:54,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:54,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462013469] [2025-03-03 14:12:54,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:54,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:54,996 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 461 statements into 1 equivalence classes. [2025-03-03 14:12:55,002 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 461 of 461 statements. [2025-03-03 14:12:55,003 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:55,003 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:55,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2025-03-03 14:12:55,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:55,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462013469] [2025-03-03 14:12:55,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462013469] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:55,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1784213494] [2025-03-03 14:12:55,440 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:55,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:55,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:55,442 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) [2025-03-03 14:12:55,444 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-03 14:12:55,620 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 461 statements into 1 equivalence classes. [2025-03-03 14:12:55,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 461 of 461 statements. [2025-03-03 14:12:55,838 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:55,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:55,846 INFO L256 TraceCheckSpWp]: Trace formula consists of 3197 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-03 14:12:55,852 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:56,055 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 341 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2025-03-03 14:12:56,057 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:12:56,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2025-03-03 14:12:56,864 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1784213494] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:12:56,864 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 14:12:56,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2025-03-03 14:12:56,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915795752] [2025-03-03 14:12:56,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 14:12:56,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-03 14:12:56,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:56,866 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-03 14:12:56,866 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2025-03-03 14:12:56,867 INFO L87 Difference]: Start difference. First operand 3277 states and 5438 transitions. Second operand has 27 states, 25 states have (on average 14.76) internal successors, (369), 23 states have internal predecessors, (369), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2025-03-03 14:13:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:32,699 INFO L93 Difference]: Finished difference Result 49187 states and 87080 transitions. [2025-03-03 14:13:32,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2025-03-03 14:13:32,700 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.76) internal successors, (369), 23 states have internal predecessors, (369), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) Word has length 461 [2025-03-03 14:13:32,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:32,946 INFO L225 Difference]: With dead ends: 49187 [2025-03-03 14:13:32,946 INFO L226 Difference]: Without dead ends: 45850 [2025-03-03 14:13:33,028 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1482 GetRequests, 1033 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93079 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2025-03-03 14:13:33,029 INFO L435 NwaCegarLoop]: 2237 mSDtfsCounter, 46798 mSDsluCounter, 20825 mSDsCounter, 0 mSdLazyCounter, 70221 mSolverCounterSat, 17684 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46812 SdHoareTripleChecker+Valid, 23062 SdHoareTripleChecker+Invalid, 87905 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.3s SdHoareTripleChecker+Time, 17684 IncrementalHoareTripleChecker+Valid, 70221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 26.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:33,029 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [46812 Valid, 23062 Invalid, 87905 Unknown, 0 Unchecked, 0.3s Time], IncrementalHoareTripleChecker [17684 Valid, 70221 Invalid, 0 Unknown, 0 Unchecked, 26.3s Time] [2025-03-03 14:13:33,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45850 states. [2025-03-03 14:13:34,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45850 to 37857. [2025-03-03 14:13:34,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37857 states, 30968 states have (on average 1.6628455179540171) internal successors, (51495), 31796 states have internal predecessors, (51495), 4554 states have call successors, (4554), 1988 states have call predecessors, (4554), 2334 states have return successors, (7157), 4648 states have call predecessors, (7157), 4536 states have call successors, (7157) [2025-03-03 14:13:34,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37857 states to 37857 states and 63206 transitions. [2025-03-03 14:13:34,993 INFO L78 Accepts]: Start accepts. Automaton has 37857 states and 63206 transitions. Word has length 461 [2025-03-03 14:13:34,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:34,993 INFO L471 AbstractCegarLoop]: Abstraction has 37857 states and 63206 transitions. [2025-03-03 14:13:34,993 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.76) internal successors, (369), 23 states have internal predecessors, (369), 17 states have call successors, (89), 8 states have call predecessors, (89), 14 states have return successors, (90), 20 states have call predecessors, (90), 17 states have call successors, (90) [2025-03-03 14:13:34,993 INFO L276 IsEmpty]: Start isEmpty. Operand 37857 states and 63206 transitions. [2025-03-03 14:13:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 553 [2025-03-03 14:13:35,111 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:35,112 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-03 14:13:35,122 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:35,312 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 [2025-03-03 14:13:35,313 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:35,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:35,313 INFO L85 PathProgramCache]: Analyzing trace with hash 632673099, now seen corresponding path program 1 times [2025-03-03 14:13:35,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:35,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555296496] [2025-03-03 14:13:35,313 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:35,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:35,338 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 552 statements into 1 equivalence classes. [2025-03-03 14:13:35,345 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 552 of 552 statements. [2025-03-03 14:13:35,346 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:35,346 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:35,672 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 90 proven. 97 refuted. 0 times theorem prover too weak. 1481 trivial. 0 not checked. [2025-03-03 14:13:35,672 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:35,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555296496] [2025-03-03 14:13:35,673 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555296496] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:35,673 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [491083613] [2025-03-03 14:13:35,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:35,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:35,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:35,675 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) [2025-03-03 14:13:35,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-03 14:13:35,893 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 552 statements into 1 equivalence classes. [2025-03-03 14:13:36,202 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 552 of 552 statements. [2025-03-03 14:13:36,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:36,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:36,213 INFO L256 TraceCheckSpWp]: Trace formula consists of 3467 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-03 14:13:36,219 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:36,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1668 backedges. 859 proven. 0 refuted. 0 times theorem prover too weak. 809 trivial. 0 not checked. [2025-03-03 14:13:36,262 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:36,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [491083613] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:36,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:36,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2025-03-03 14:13:36,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708478926] [2025-03-03 14:13:36,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:36,263 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:13:36,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:36,263 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:13:36,263 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:13:36,263 INFO L87 Difference]: Start difference. First operand 37857 states and 63206 transitions. Second operand has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2025-03-03 14:13:37,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:37,400 INFO L93 Difference]: Finished difference Result 76172 states and 127781 transitions. [2025-03-03 14:13:37,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-03 14:13:37,400 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) Word has length 552 [2025-03-03 14:13:37,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:37,584 INFO L225 Difference]: With dead ends: 76172 [2025-03-03 14:13:37,584 INFO L226 Difference]: Without dead ends: 38397 [2025-03-03 14:13:37,718 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=157, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:13:37,718 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 0 mSDsluCounter, 4216 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 5063 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:37,719 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5063 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:37,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38397 states. [2025-03-03 14:13:39,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38397 to 38271. [2025-03-03 14:13:39,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38271 states, 31292 states have (on average 1.6559823597085517) internal successors, (51819), 32162 states have internal predecessors, (51819), 4554 states have call successors, (4554), 1988 states have call predecessors, (4554), 2424 states have return successors, (7334), 4696 states have call predecessors, (7334), 4536 states have call successors, (7334) [2025-03-03 14:13:39,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38271 states to 38271 states and 63707 transitions. [2025-03-03 14:13:39,458 INFO L78 Accepts]: Start accepts. Automaton has 38271 states and 63707 transitions. Word has length 552 [2025-03-03 14:13:39,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:39,459 INFO L471 AbstractCegarLoop]: Abstraction has 38271 states and 63707 transitions. [2025-03-03 14:13:39,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 32.714285714285715) internal successors, (229), 6 states have internal predecessors, (229), 2 states have call successors, (42), 2 states have call predecessors, (42), 3 states have return successors, (41), 3 states have call predecessors, (41), 2 states have call successors, (41) [2025-03-03 14:13:39,459 INFO L276 IsEmpty]: Start isEmpty. Operand 38271 states and 63707 transitions. [2025-03-03 14:13:39,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 556 [2025-03-03 14:13:39,569 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:39,569 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 11, 11, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 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, 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] [2025-03-03 14:13:39,579 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-03 14:13:39,770 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 [2025-03-03 14:13:39,770 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:39,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:39,771 INFO L85 PathProgramCache]: Analyzing trace with hash 315852218, now seen corresponding path program 1 times [2025-03-03 14:13:39,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:39,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117023293] [2025-03-03 14:13:39,772 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:39,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:39,805 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-03-03 14:13:39,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-03-03 14:13:39,814 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:39,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:40,218 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 90 proven. 92 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2025-03-03 14:13:40,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:40,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117023293] [2025-03-03 14:13:40,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117023293] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:40,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309511509] [2025-03-03 14:13:40,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:40,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:40,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:40,221 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) [2025-03-03 14:13:40,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-03 14:13:40,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 555 statements into 1 equivalence classes. [2025-03-03 14:13:40,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 555 of 555 statements. [2025-03-03 14:13:40,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:40,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:40,683 INFO L256 TraceCheckSpWp]: Trace formula consists of 3474 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-03 14:13:40,693 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:41,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 1058 proven. 26 refuted. 0 times theorem prover too weak. 541 trivial. 0 not checked. [2025-03-03 14:13:41,101 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:13:41,644 INFO L134 CoverageAnalysis]: Checked inductivity of 1625 backedges. 118 proven. 101 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2025-03-03 14:13:41,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1309511509] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:13:41,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 14:13:41,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2025-03-03 14:13:41,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730107130] [2025-03-03 14:13:41,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 14:13:41,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-03 14:13:41,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:41,646 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-03 14:13:41,646 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2025-03-03 14:13:41,646 INFO L87 Difference]: Start difference. First operand 38271 states and 63707 transitions. Second operand has 24 states, 21 states have (on average 24.142857142857142) internal successors, (507), 22 states have internal predecessors, (507), 17 states have call successors, (125), 8 states have call predecessors, (125), 15 states have return successors, (124), 16 states have call predecessors, (124), 17 states have call successors, (124) [2025-03-03 14:13:53,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:53,771 INFO L93 Difference]: Finished difference Result 147183 states and 258994 transitions. [2025-03-03 14:13:53,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2025-03-03 14:13:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 24.142857142857142) internal successors, (507), 22 states have internal predecessors, (507), 17 states have call successors, (125), 8 states have call predecessors, (125), 15 states have return successors, (124), 16 states have call predecessors, (124), 17 states have call successors, (124) Word has length 555 [2025-03-03 14:13:53,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:54,483 INFO L225 Difference]: With dead ends: 147183 [2025-03-03 14:13:54,484 INFO L226 Difference]: Without dead ends: 109075 [2025-03-03 14:13:54,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1209 GetRequests, 1120 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2280 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1262, Invalid=6220, Unknown=0, NotChecked=0, Total=7482 [2025-03-03 14:13:54,903 INFO L435 NwaCegarLoop]: 636 mSDtfsCounter, 13280 mSDsluCounter, 5558 mSDsCounter, 0 mSdLazyCounter, 17456 mSolverCounterSat, 4786 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13280 SdHoareTripleChecker+Valid, 6194 SdHoareTripleChecker+Invalid, 22242 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4786 IncrementalHoareTripleChecker+Valid, 17456 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:54,903 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [13280 Valid, 6194 Invalid, 22242 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4786 Valid, 17456 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2025-03-03 14:13:54,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109075 states.