./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8fc3dc66 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_product03.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 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-16 18:30:20,507 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-16 18:30:20,549 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-16 18:30:20,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-16 18:30:20,555 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-16 18:30:20,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-16 18:30:20,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-16 18:30:20,572 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-16 18:30:20,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-16 18:30:20,573 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-16 18:30:20,573 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-16 18:30:20,573 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-16 18:30:20,573 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-16 18:30:20,573 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-16 18:30:20,573 INFO L153 SettingsManager]: * Use SBE=true [2025-03-16 18:30:20,573 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-16 18:30:20,574 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-16 18:30:20,575 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 18:30:20,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-16 18:30:20,575 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-16 18:30:20,576 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-16 18:30:20,576 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 -> 8ed4163e8f042a84d9cdccd4fee3ee0ba89fdce83cd991779acec4a51d9a650c [2025-03-16 18:30:20,805 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-16 18:30:20,810 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-16 18:30:20,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-16 18:30:20,812 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-16 18:30:20,812 INFO L274 PluginConnector]: CDTParser initialized [2025-03-16 18:30:20,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2025-03-16 18:30:21,907 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9b8ea9d/796f96d9c8e741ed9cc5c5063998392c/FLAGd0bea8fac [2025-03-16 18:30:22,240 INFO L384 CDTParser]: Found 1 translation units. [2025-03-16 18:30:22,241 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product03.cil.c [2025-03-16 18:30:22,253 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9b8ea9d/796f96d9c8e741ed9cc5c5063998392c/FLAGd0bea8fac [2025-03-16 18:30:22,262 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3a9b8ea9d/796f96d9c8e741ed9cc5c5063998392c [2025-03-16 18:30:22,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-16 18:30:22,265 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-16 18:30:22,266 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-16 18:30:22,266 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-16 18:30:22,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-16 18:30:22,269 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a3c5206 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22, skipping insertion in model container [2025-03-16 18:30:22,270 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,313 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-16 18:30:22,680 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_product03.cil.c[68958,68971] [2025-03-16 18:30:22,684 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 18:30:22,698 INFO L200 MainTranslator]: Completed pre-run [2025-03-16 18:30:22,703 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [48] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [169] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [268] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [935] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [976] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [994] [2025-03-16 18:30:22,705 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1346] [2025-03-16 18:30:22,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [1712] [2025-03-16 18:30:22,706 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [1747] [2025-03-16 18:30:22,707 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3244] [2025-03-16 18:30:22,812 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_product03.cil.c[68958,68971] [2025-03-16 18:30:22,815 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-16 18:30:22,834 INFO L204 MainTranslator]: Completed translation [2025-03-16 18:30:22,835 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22 WrapperNode [2025-03-16 18:30:22,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-16 18:30:22,836 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-16 18:30:22,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-16 18:30:22,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-16 18:30:22,840 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,854 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,882 INFO L138 Inliner]: procedures = 89, calls = 329, calls flagged for inlining = 24, calls inlined = 21, statements flattened = 999 [2025-03-16 18:30:22,883 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-16 18:30:22,883 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-16 18:30:22,883 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-16 18:30:22,883 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-16 18:30:22,892 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,900 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,930 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]. [2025-03-16 18:30:22,931 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,931 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,950 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,952 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,957 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-16 18:30:22,961 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-16 18:30:22,961 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-16 18:30:22,961 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-16 18:30:22,962 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (1/1) ... [2025-03-16 18:30:22,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-16 18:30:22,978 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:22,988 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) [2025-03-16 18:30:22,990 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 [2025-03-16 18:30:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-16 18:30:23,008 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-16 18:30:23,009 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-16 18:30:23,009 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-16 18:30:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__base [2025-03-16 18:30:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__base [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-16 18:30:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-16 18:30:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-16 18:30:23,010 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-16 18:30:23,010 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-16 18:30:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-16 18:30:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-16 18:30:23,011 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-16 18:30:23,011 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-16 18:30:23,157 INFO L256 CfgBuilder]: Building ICFG [2025-03-16 18:30:23,159 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-16 18:30:23,219 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L166: #res := ~retValue_acc~2; [2025-03-16 18:30:23,223 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1819: #res := ~retValue_acc~13; [2025-03-16 18:30:23,236 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1948: #res := ~retValue_acc~14; [2025-03-16 18:30:23,272 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3232: #res := ~retValue_acc~28; [2025-03-16 18:30:23,555 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2514: #res#1 := ~retValue_acc~22#1; [2025-03-16 18:30:23,555 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2485-1: stopRequestedInDirection__wrappee__base_#res#1 := stopRequestedInDirection__wrappee__base_~retValue_acc~21#1; [2025-03-16 18:30:23,615 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2649: #res := ~retValue_acc~26; [2025-03-16 18:30:23,625 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L127: #res := ~retValue_acc~1; [2025-03-16 18:30:23,667 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2604: #res#1 := ~retValue_acc~24#1; [2025-03-16 18:30:23,668 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1991-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~16#1; [2025-03-16 18:30:23,734 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2133-1: isIdle_#res#1 := isIdle_~retValue_acc~20#1; [2025-03-16 18:30:23,734 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2120-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~19#1; [2025-03-16 18:30:23,840 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3241-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~29#1; [2025-03-16 18:30:23,840 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1957-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~15#1; [2025-03-16 18:30:23,840 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2635-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~25#1; [2025-03-16 18:30:23,900 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L621: #res := ~retValue_acc~4; [2025-03-16 18:30:23,949 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1343-1: main_#res#1 := main_~retValue_acc~7#1; [2025-03-16 18:30:23,949 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1744-1: valid_product_#res#1 := valid_product_~retValue_acc~12#1; [2025-03-16 18:30:23,959 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L385: #res := ~retValue_acc~3; [2025-03-16 18:30:23,961 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L932: #res := ~retValue_acc~5; [2025-03-16 18:30:24,083 INFO L? ?]: Removed 422 outVars from TransFormulas that were not future-live. [2025-03-16 18:30:24,083 INFO L307 CfgBuilder]: Performing block encoding [2025-03-16 18:30:24,104 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-16 18:30:24,107 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-16 18:30:24,107 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:30:24 BoogieIcfgContainer [2025-03-16 18:30:24,107 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-16 18:30:24,108 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-16 18:30:24,108 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-16 18:30:24,113 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-16 18:30:24,113 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.03 06:30:22" (1/3) ... [2025-03-16 18:30:24,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3763d1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:30:24, skipping insertion in model container [2025-03-16 18:30:24,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.03 06:30:22" (2/3) ... [2025-03-16 18:30:24,114 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3763d1be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:30:24, skipping insertion in model container [2025-03-16 18:30:24,114 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.03 06:30:24" (3/3) ... [2025-03-16 18:30:24,115 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product03.cil.c [2025-03-16 18:30:24,125 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-16 18:30:24,128 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product03.cil.c that has 23 procedures, 509 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-16 18:30:24,191 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-16 18:30:24,202 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;@adda587, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-16 18:30:24,202 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-16 18:30:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 509 states, 394 states have (on average 1.6928934010152283) internal successors, (667), 410 states have internal predecessors, (667), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) [2025-03-16 18:30:24,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 98 [2025-03-16 18:30:24,224 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:24,224 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:24,225 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:24,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:24,228 INFO L85 PathProgramCache]: Analyzing trace with hash 97081716, now seen corresponding path program 1 times [2025-03-16 18:30:24,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:24,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707235209] [2025-03-16 18:30:24,234 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:24,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:24,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 97 statements into 1 equivalence classes. [2025-03-16 18:30:24,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 97 of 97 statements. [2025-03-16 18:30:24,369 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:24,369 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:24,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:24,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707235209] [2025-03-16 18:30:24,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707235209] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:24,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:24,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:24,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494816961] [2025-03-16 18:30:24,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:24,609 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:24,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:24,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:24,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:24,629 INFO L87 Difference]: Start difference. First operand has 509 states, 394 states have (on average 1.6928934010152283) internal successors, (667), 410 states have internal predecessors, (667), 91 states have call successors, (91), 22 states have call predecessors, (91), 22 states have return successors, (91), 89 states have call predecessors, (91), 91 states have call successors, (91) Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:24,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:24,775 INFO L93 Difference]: Finished difference Result 1016 states and 1703 transitions. [2025-03-16 18:30:24,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:24,777 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 97 [2025-03-16 18:30:24,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:24,786 INFO L225 Difference]: With dead ends: 1016 [2025-03-16 18:30:24,786 INFO L226 Difference]: Without dead ends: 506 [2025-03-16 18:30:24,792 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 [2025-03-16 18:30:24,795 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 6 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2496 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 [2025-03-16 18:30:24,796 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2496 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:24,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-03-16 18:30:24,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-03-16 18:30:24,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 392 states have (on average 1.6811224489795917) internal successors, (659), 407 states have internal predecessors, (659), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:24,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 840 transitions. [2025-03-16 18:30:24,873 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 840 transitions. Word has length 97 [2025-03-16 18:30:24,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:24,873 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 840 transitions. [2025-03-16 18:30:24,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 4 states have internal predecessors, (56), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:24,873 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 840 transitions. [2025-03-16 18:30:24,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2025-03-16 18:30:24,877 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:24,877 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:24,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-16 18:30:24,878 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:24,878 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:24,878 INFO L85 PathProgramCache]: Analyzing trace with hash -61862147, now seen corresponding path program 1 times [2025-03-16 18:30:24,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:24,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401030620] [2025-03-16 18:30:24,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:24,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:24,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 98 statements into 1 equivalence classes. [2025-03-16 18:30:24,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 98 of 98 statements. [2025-03-16 18:30:24,916 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:24,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:25,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:25,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401030620] [2025-03-16 18:30:25,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401030620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:25,076 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:25,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:25,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534034841] [2025-03-16 18:30:25,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:25,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:25,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:25,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:25,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:25,078 INFO L87 Difference]: Start difference. First operand 506 states and 840 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:25,151 INFO L93 Difference]: Finished difference Result 999 states and 1661 transitions. [2025-03-16 18:30:25,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 18:30:25,151 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 98 [2025-03-16 18:30:25,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:25,156 INFO L225 Difference]: With dead ends: 999 [2025-03-16 18:30:25,156 INFO L226 Difference]: Without dead ends: 506 [2025-03-16 18:30:25,159 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 [2025-03-16 18:30:25,160 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 4 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2471 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 [2025-03-16 18:30:25,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2471 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:25,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-03-16 18:30:25,175 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-03-16 18:30:25,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 392 states have (on average 1.6785714285714286) internal successors, (658), 407 states have internal predecessors, (658), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:25,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 839 transitions. [2025-03-16 18:30:25,180 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 839 transitions. Word has length 98 [2025-03-16 18:30:25,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:25,181 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 839 transitions. [2025-03-16 18:30:25,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,181 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 839 transitions. [2025-03-16 18:30:25,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2025-03-16 18:30:25,185 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:25,185 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:25,185 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-16 18:30:25,185 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:25,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:25,186 INFO L85 PathProgramCache]: Analyzing trace with hash -2110008271, now seen corresponding path program 1 times [2025-03-16 18:30:25,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:25,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588932067] [2025-03-16 18:30:25,187 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:25,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:25,205 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 99 statements into 1 equivalence classes. [2025-03-16 18:30:25,213 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 99 of 99 statements. [2025-03-16 18:30:25,214 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:25,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:25,326 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:25,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:25,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588932067] [2025-03-16 18:30:25,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588932067] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:25,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:25,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:25,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835660094] [2025-03-16 18:30:25,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:25,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:25,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:25,329 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:25,329 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:25,329 INFO L87 Difference]: Start difference. First operand 506 states and 839 transitions. 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:25,390 INFO L93 Difference]: Finished difference Result 999 states and 1660 transitions. [2025-03-16 18:30:25,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 18:30:25,390 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 99 [2025-03-16 18:30:25,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:25,394 INFO L225 Difference]: With dead ends: 999 [2025-03-16 18:30:25,394 INFO L226 Difference]: Without dead ends: 506 [2025-03-16 18:30:25,396 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 [2025-03-16 18:30:25,399 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 3 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2471 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 [2025-03-16 18:30:25,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2471 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:25,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-03-16 18:30:25,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-03-16 18:30:25,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 392 states have (on average 1.6760204081632653) internal successors, (657), 407 states have internal predecessors, (657), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:25,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 838 transitions. [2025-03-16 18:30:25,428 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 838 transitions. Word has length 99 [2025-03-16 18:30:25,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:25,429 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 838 transitions. [2025-03-16 18:30:25,430 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,430 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 838 transitions. [2025-03-16 18:30:25,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2025-03-16 18:30:25,432 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:25,433 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:25,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-16 18:30:25,433 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:25,434 INFO L85 PathProgramCache]: Analyzing trace with hash 1701084954, now seen corresponding path program 1 times [2025-03-16 18:30:25,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:25,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028896028] [2025-03-16 18:30:25,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:25,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:25,458 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 100 statements into 1 equivalence classes. [2025-03-16 18:30:25,470 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 100 of 100 statements. [2025-03-16 18:30:25,470 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:25,470 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:25,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:25,564 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028896028] [2025-03-16 18:30:25,564 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028896028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:25,564 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:25,564 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:25,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362053917] [2025-03-16 18:30:25,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:25,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:25,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:25,565 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:25,565 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:25,566 INFO L87 Difference]: Start difference. First operand 506 states and 838 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:25,613 INFO L93 Difference]: Finished difference Result 999 states and 1659 transitions. [2025-03-16 18:30:25,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 18:30:25,613 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 100 [2025-03-16 18:30:25,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:25,616 INFO L225 Difference]: With dead ends: 999 [2025-03-16 18:30:25,617 INFO L226 Difference]: Without dead ends: 506 [2025-03-16 18:30:25,619 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 [2025-03-16 18:30:25,620 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 2 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2471 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 [2025-03-16 18:30:25,620 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2471 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:25,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-03-16 18:30:25,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-03-16 18:30:25,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 392 states have (on average 1.6734693877551021) internal successors, (656), 407 states have internal predecessors, (656), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:25,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 837 transitions. [2025-03-16 18:30:25,640 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 837 transitions. Word has length 100 [2025-03-16 18:30:25,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:25,640 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 837 transitions. [2025-03-16 18:30:25,641 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,641 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 837 transitions. [2025-03-16 18:30:25,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-16 18:30:25,643 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:25,643 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:25,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-16 18:30:25,644 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:25,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:25,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1829963026, now seen corresponding path program 1 times [2025-03-16 18:30:25,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:25,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504577539] [2025-03-16 18:30:25,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:25,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:25,661 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-16 18:30:25,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-16 18:30:25,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:25,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:25,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:25,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504577539] [2025-03-16 18:30:25,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504577539] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:25,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:25,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:25,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501457321] [2025-03-16 18:30:25,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:25,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:25,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:25,760 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:25,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:25,760 INFO L87 Difference]: Start difference. First operand 506 states and 837 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, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:25,800 INFO L93 Difference]: Finished difference Result 999 states and 1658 transitions. [2025-03-16 18:30:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 18:30:25,800 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 101 [2025-03-16 18:30:25,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:25,805 INFO L225 Difference]: With dead ends: 999 [2025-03-16 18:30:25,805 INFO L226 Difference]: Without dead ends: 506 [2025-03-16 18:30:25,807 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 [2025-03-16 18:30:25,808 INFO L435 NwaCegarLoop]: 826 mSDtfsCounter, 1 mSDsluCounter, 1645 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2471 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 [2025-03-16 18:30:25,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2471 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:25,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 506 states. [2025-03-16 18:30:25,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 506 to 506. [2025-03-16 18:30:25,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 506 states, 392 states have (on average 1.6709183673469388) internal successors, (655), 407 states have internal predecessors, (655), 91 states have call successors, (91), 23 states have call predecessors, (91), 22 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:25,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 506 states to 506 states and 836 transitions. [2025-03-16 18:30:25,831 INFO L78 Accepts]: Start accepts. Automaton has 506 states and 836 transitions. Word has length 101 [2025-03-16 18:30:25,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:25,831 INFO L471 AbstractCegarLoop]: Abstraction has 506 states and 836 transitions. [2025-03-16 18:30:25,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:25,831 INFO L276 IsEmpty]: Start isEmpty. Operand 506 states and 836 transitions. [2025-03-16 18:30:25,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-16 18:30:25,833 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:25,834 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:25,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-16 18:30:25,834 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:25,834 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:25,834 INFO L85 PathProgramCache]: Analyzing trace with hash -1039154377, now seen corresponding path program 1 times [2025-03-16 18:30:25,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:25,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003567373] [2025-03-16 18:30:25,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:25,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:25,854 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-16 18:30:25,863 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-16 18:30:25,864 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:25,864 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:26,019 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:26,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:26,020 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003567373] [2025-03-16 18:30:26,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003567373] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:26,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:26,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 18:30:26,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991099008] [2025-03-16 18:30:26,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:26,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 18:30:26,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:26,022 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 18:30:26,022 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:30:26,022 INFO L87 Difference]: Start difference. First operand 506 states and 836 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-16 18:30:26,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:26,112 INFO L93 Difference]: Finished difference Result 1010 states and 1675 transitions. [2025-03-16 18:30:26,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:30:26,112 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 102 [2025-03-16 18:30:26,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:26,116 INFO L225 Difference]: With dead ends: 1010 [2025-03-16 18:30:26,116 INFO L226 Difference]: Without dead ends: 521 [2025-03-16 18:30:26,118 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 [2025-03-16 18:30:26,118 INFO L435 NwaCegarLoop]: 823 mSDtfsCounter, 91 mSDsluCounter, 4030 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 4853 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:26,118 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 4853 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states. [2025-03-16 18:30:26,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 519. [2025-03-16 18:30:26,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 519 states, 402 states have (on average 1.6666666666666667) internal successors, (670), 419 states have internal predecessors, (670), 92 states have call successors, (92), 23 states have call predecessors, (92), 24 states have return successors, (94), 89 states have call predecessors, (94), 91 states have call successors, (94) [2025-03-16 18:30:26,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 519 states to 519 states and 856 transitions. [2025-03-16 18:30:26,144 INFO L78 Accepts]: Start accepts. Automaton has 519 states and 856 transitions. Word has length 102 [2025-03-16 18:30:26,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:26,145 INFO L471 AbstractCegarLoop]: Abstraction has 519 states and 856 transitions. [2025-03-16 18:30:26,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 6 states have internal predecessors, (61), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-16 18:30:26,145 INFO L276 IsEmpty]: Start isEmpty. Operand 519 states and 856 transitions. [2025-03-16 18:30:26,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-16 18:30:26,147 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:26,148 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:26,148 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-16 18:30:26,148 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:26,150 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:26,150 INFO L85 PathProgramCache]: Analyzing trace with hash -100622762, now seen corresponding path program 1 times [2025-03-16 18:30:26,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:26,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675858927] [2025-03-16 18:30:26,151 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:26,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:26,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-16 18:30:26,171 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-16 18:30:26,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:26,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:26,228 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:26,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:26,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675858927] [2025-03-16 18:30:26,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675858927] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:26,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:26,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:26,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95858178] [2025-03-16 18:30:26,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:26,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:26,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:26,231 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:26,231 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:26,231 INFO L87 Difference]: Start difference. First operand 519 states and 856 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:26,280 INFO L93 Difference]: Finished difference Result 1017 states and 1686 transitions. [2025-03-16 18:30:26,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:26,280 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 102 [2025-03-16 18:30:26,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:26,285 INFO L225 Difference]: With dead ends: 1017 [2025-03-16 18:30:26,286 INFO L226 Difference]: Without dead ends: 515 [2025-03-16 18:30:26,288 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 [2025-03-16 18:30:26,288 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 1 mSDsluCounter, 1642 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2466 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 [2025-03-16 18:30:26,289 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2466 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:26,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states. [2025-03-16 18:30:26,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 515. [2025-03-16 18:30:26,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 515 states, 400 states have (on average 1.6675) internal successors, (667), 416 states have internal predecessors, (667), 91 states have call successors, (91), 23 states have call predecessors, (91), 23 states have return successors, (91), 88 states have call predecessors, (91), 90 states have call successors, (91) [2025-03-16 18:30:26,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 515 states to 515 states and 849 transitions. [2025-03-16 18:30:26,306 INFO L78 Accepts]: Start accepts. Automaton has 515 states and 849 transitions. Word has length 102 [2025-03-16 18:30:26,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:26,307 INFO L471 AbstractCegarLoop]: Abstraction has 515 states and 849 transitions. [2025-03-16 18:30:26,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 2 states have call successors, (12), 2 states have call predecessors, (12), 3 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,307 INFO L276 IsEmpty]: Start isEmpty. Operand 515 states and 849 transitions. [2025-03-16 18:30:26,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-16 18:30:26,309 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:26,309 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:26,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-16 18:30:26,309 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:26,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:26,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1420608505, now seen corresponding path program 1 times [2025-03-16 18:30:26,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:26,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400302021] [2025-03-16 18:30:26,310 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:26,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:26,322 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-16 18:30:26,328 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-16 18:30:26,328 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:26,328 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:26,422 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:26,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:26,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400302021] [2025-03-16 18:30:26,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1400302021] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:26,424 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:26,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 18:30:26,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518388773] [2025-03-16 18:30:26,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:26,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:26,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:26,425 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:26,425 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 18:30:26,425 INFO L87 Difference]: Start difference. First operand 515 states and 849 transitions. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:26,659 INFO L93 Difference]: Finished difference Result 1060 states and 1758 transitions. [2025-03-16 18:30:26,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:30:26,659 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 103 [2025-03-16 18:30:26,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:26,662 INFO L225 Difference]: With dead ends: 1060 [2025-03-16 18:30:26,662 INFO L226 Difference]: Without dead ends: 547 [2025-03-16 18:30:26,664 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 [2025-03-16 18:30:26,665 INFO L435 NwaCegarLoop]: 798 mSDtfsCounter, 72 mSDsluCounter, 3113 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 3911 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 [2025-03-16 18:30:26,665 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 3911 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 18:30:26,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 547 states. [2025-03-16 18:30:26,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 547 to 520. [2025-03-16 18:30:26,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.651851851851852) internal successors, (669), 420 states have internal predecessors, (669), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:26,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 850 transitions. [2025-03-16 18:30:26,680 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 850 transitions. Word has length 103 [2025-03-16 18:30:26,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:26,681 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 850 transitions. [2025-03-16 18:30:26,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 states have internal predecessors, (62), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,681 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 850 transitions. [2025-03-16 18:30:26,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-16 18:30:26,683 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:26,683 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:26,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-16 18:30:26,683 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:26,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:26,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1647379214, now seen corresponding path program 1 times [2025-03-16 18:30:26,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:26,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119672463] [2025-03-16 18:30:26,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:26,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:26,696 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-16 18:30:26,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-16 18:30:26,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:26,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:26,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:26,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119672463] [2025-03-16 18:30:26,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119672463] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:26,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:26,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 18:30:26,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607434136] [2025-03-16 18:30:26,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:26,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:26,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:26,778 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:26,778 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 18:30:26,778 INFO L87 Difference]: Start difference. First operand 520 states and 850 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:26,937 INFO L93 Difference]: Finished difference Result 1011 states and 1653 transitions. [2025-03-16 18:30:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:26,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 104 [2025-03-16 18:30:26,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:26,941 INFO L225 Difference]: With dead ends: 1011 [2025-03-16 18:30:26,941 INFO L226 Difference]: Without dead ends: 538 [2025-03-16 18:30:26,943 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 [2025-03-16 18:30:26,943 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 56 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 3888 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 [2025-03-16 18:30:26,943 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 3888 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:26,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-16 18:30:26,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 520. [2025-03-16 18:30:26,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.6419753086419753) internal successors, (665), 420 states have internal predecessors, (665), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 846 transitions. [2025-03-16 18:30:26,958 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 846 transitions. Word has length 104 [2025-03-16 18:30:26,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:26,958 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 846 transitions. [2025-03-16 18:30:26,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 6 states have internal predecessors, (63), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:26,958 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 846 transitions. [2025-03-16 18:30:26,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-16 18:30:26,960 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:26,960 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:26,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-16 18:30:26,961 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:26,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:26,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1635173910, now seen corresponding path program 1 times [2025-03-16 18:30:26,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:26,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963561206] [2025-03-16 18:30:26,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:26,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:26,974 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-16 18:30:26,978 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-16 18:30:26,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:26,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:27,060 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:27,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:27,060 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963561206] [2025-03-16 18:30:27,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963561206] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:27,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:27,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 18:30:27,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185514508] [2025-03-16 18:30:27,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:27,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:27,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:27,061 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:27,061 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 18:30:27,062 INFO L87 Difference]: Start difference. First operand 520 states and 846 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:27,203 INFO L93 Difference]: Finished difference Result 1011 states and 1649 transitions. [2025-03-16 18:30:27,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:27,205 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 105 [2025-03-16 18:30:27,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:27,209 INFO L225 Difference]: With dead ends: 1011 [2025-03-16 18:30:27,209 INFO L226 Difference]: Without dead ends: 538 [2025-03-16 18:30:27,220 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 [2025-03-16 18:30:27,221 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 55 mSDsluCounter, 3097 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 3883 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 [2025-03-16 18:30:27,221 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 3883 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:27,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2025-03-16 18:30:27,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 520. [2025-03-16 18:30:27,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 405 states have (on average 1.6320987654320989) internal successors, (661), 420 states have internal predecessors, (661), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:27,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 842 transitions. [2025-03-16 18:30:27,237 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 842 transitions. Word has length 105 [2025-03-16 18:30:27,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:27,237 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 842 transitions. [2025-03-16 18:30:27,237 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,237 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 842 transitions. [2025-03-16 18:30:27,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-16 18:30:27,239 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:27,239 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:27,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-16 18:30:27,240 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:27,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:27,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1486326617, now seen corresponding path program 1 times [2025-03-16 18:30:27,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:27,240 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552344505] [2025-03-16 18:30:27,241 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:27,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:27,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-16 18:30:27,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-16 18:30:27,263 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:27,263 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:27,356 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:27,356 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:27,356 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552344505] [2025-03-16 18:30:27,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552344505] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:27,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:27,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-16 18:30:27,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196386144] [2025-03-16 18:30:27,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:27,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-16 18:30:27,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:27,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-16 18:30:27,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:30:27,359 INFO L87 Difference]: Start difference. First operand 520 states and 842 transitions. Second operand has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-16 18:30:27,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:27,425 INFO L93 Difference]: Finished difference Result 1002 states and 1631 transitions. [2025-03-16 18:30:27,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-16 18:30:27,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 105 [2025-03-16 18:30:27,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:27,429 INFO L225 Difference]: With dead ends: 1002 [2025-03-16 18:30:27,429 INFO L226 Difference]: Without dead ends: 508 [2025-03-16 18:30:27,431 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 [2025-03-16 18:30:27,432 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 94 mSDsluCounter, 3964 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 4776 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 [2025-03-16 18:30:27,432 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 4776 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:27,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-03-16 18:30:27,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 499. [2025-03-16 18:30:27,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 384 states have (on average 1.625) internal successors, (624), 399 states have internal predecessors, (624), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:27,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 805 transitions. [2025-03-16 18:30:27,449 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 805 transitions. Word has length 105 [2025-03-16 18:30:27,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:27,450 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 805 transitions. [2025-03-16 18:30:27,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.666666666666666) internal successors, (64), 6 states have internal predecessors, (64), 3 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-03-16 18:30:27,450 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 805 transitions. [2025-03-16 18:30:27,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-16 18:30:27,452 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:27,452 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:27,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-16 18:30:27,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:27,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:27,453 INFO L85 PathProgramCache]: Analyzing trace with hash 78969745, now seen corresponding path program 1 times [2025-03-16 18:30:27,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:27,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351615748] [2025-03-16 18:30:27,453 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:27,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:27,469 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-16 18:30:27,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-16 18:30:27,474 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:27,474 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:27,546 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:27,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:27,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351615748] [2025-03-16 18:30:27,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351615748] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:27,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:27,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 18:30:27,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018837415] [2025-03-16 18:30:27,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:27,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:27,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:27,548 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:27,548 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 18:30:27,548 INFO L87 Difference]: Start difference. First operand 499 states and 805 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:27,636 INFO L93 Difference]: Finished difference Result 981 states and 1594 transitions. [2025-03-16 18:30:27,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:27,636 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 106 [2025-03-16 18:30:27,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:27,640 INFO L225 Difference]: With dead ends: 981 [2025-03-16 18:30:27,640 INFO L226 Difference]: Without dead ends: 508 [2025-03-16 18:30:27,642 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 [2025-03-16 18:30:27,642 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 39 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 3888 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 [2025-03-16 18:30:27,643 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 3888 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:27,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-03-16 18:30:27,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 499. [2025-03-16 18:30:27,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 384 states have (on average 1.6223958333333333) internal successors, (623), 399 states have internal predecessors, (623), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 804 transitions. [2025-03-16 18:30:27,657 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 804 transitions. Word has length 106 [2025-03-16 18:30:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:27,658 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 804 transitions. [2025-03-16 18:30:27,658 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, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 804 transitions. [2025-03-16 18:30:27,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-16 18:30:27,660 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:27,660 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:27,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-16 18:30:27,660 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:27,660 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:27,660 INFO L85 PathProgramCache]: Analyzing trace with hash 2071890893, now seen corresponding path program 1 times [2025-03-16 18:30:27,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:27,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758195840] [2025-03-16 18:30:27,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:27,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:27,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-16 18:30:27,678 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-16 18:30:27,679 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:27,679 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:27,772 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:27,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:27,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758195840] [2025-03-16 18:30:27,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758195840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:27,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:27,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-16 18:30:27,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601846270] [2025-03-16 18:30:27,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:27,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:27,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:27,774 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:27,775 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-16 18:30:27,775 INFO L87 Difference]: Start difference. First operand 499 states and 804 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:27,866 INFO L93 Difference]: Finished difference Result 981 states and 1593 transitions. [2025-03-16 18:30:27,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:27,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 107 [2025-03-16 18:30:27,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:27,870 INFO L225 Difference]: With dead ends: 981 [2025-03-16 18:30:27,870 INFO L226 Difference]: Without dead ends: 508 [2025-03-16 18:30:27,873 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 [2025-03-16 18:30:27,874 INFO L435 NwaCegarLoop]: 787 mSDtfsCounter, 38 mSDsluCounter, 3101 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3888 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 [2025-03-16 18:30:27,874 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3888 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:27,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2025-03-16 18:30:27,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 499. [2025-03-16 18:30:27,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 384 states have (on average 1.6197916666666667) internal successors, (622), 399 states have internal predecessors, (622), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:27,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 803 transitions. [2025-03-16 18:30:27,893 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 803 transitions. Word has length 107 [2025-03-16 18:30:27,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:27,894 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 803 transitions. [2025-03-16 18:30:27,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:27,894 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 803 transitions. [2025-03-16 18:30:27,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-16 18:30:27,896 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:27,897 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:27,897 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-16 18:30:27,897 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:27,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:27,897 INFO L85 PathProgramCache]: Analyzing trace with hash -177987564, now seen corresponding path program 1 times [2025-03-16 18:30:27,898 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:27,898 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995325836] [2025-03-16 18:30:27,898 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:27,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:27,914 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-16 18:30:27,921 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-16 18:30:27,921 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:27,922 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:27,974 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-16 18:30:27,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:27,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995325836] [2025-03-16 18:30:27,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995325836] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:27,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:27,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-16 18:30:27,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938105996] [2025-03-16 18:30:27,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:27,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:27,975 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:27,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:27,976 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-16 18:30:27,976 INFO L87 Difference]: Start difference. First operand 499 states and 803 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:28,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:28,021 INFO L93 Difference]: Finished difference Result 968 states and 1572 transitions. [2025-03-16 18:30:28,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-16 18:30:28,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 108 [2025-03-16 18:30:28,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:28,024 INFO L225 Difference]: With dead ends: 968 [2025-03-16 18:30:28,025 INFO L226 Difference]: Without dead ends: 501 [2025-03-16 18:30:28,026 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 [2025-03-16 18:30:28,027 INFO L435 NwaCegarLoop]: 766 mSDtfsCounter, 16 mSDsluCounter, 1516 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2282 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 [2025-03-16 18:30:28,027 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2282 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:28,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 501 states. [2025-03-16 18:30:28,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 501 to 501. [2025-03-16 18:30:28,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 386 states have (on average 1.6139896373056994) internal successors, (623), 401 states have internal predecessors, (623), 91 states have call successors, (91), 24 states have call predecessors, (91), 23 states have return successors, (90), 88 states have call predecessors, (90), 90 states have call successors, (90) [2025-03-16 18:30:28,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 804 transitions. [2025-03-16 18:30:28,043 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 804 transitions. Word has length 108 [2025-03-16 18:30:28,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:28,044 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 804 transitions. [2025-03-16 18:30:28,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (12), 2 states have call predecessors, (12), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2025-03-16 18:30:28,044 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 804 transitions. [2025-03-16 18:30:28,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-16 18:30:28,046 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:28,046 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:28,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-16 18:30:28,046 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:28,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:28,047 INFO L85 PathProgramCache]: Analyzing trace with hash -884632096, now seen corresponding path program 1 times [2025-03-16 18:30:28,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:28,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494755736] [2025-03-16 18:30:28,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:28,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:28,062 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-16 18:30:28,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-16 18:30:28,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:28,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:28,135 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-16 18:30:28,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494755736] [2025-03-16 18:30:28,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494755736] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:28,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1623543332] [2025-03-16 18:30:28,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:28,136 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:28,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:28,138 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) [2025-03-16 18:30:28,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-16 18:30:28,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-16 18:30:28,372 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-16 18:30:28,372 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:28,372 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:28,377 INFO L256 TraceCheckSpWp]: Trace formula consists of 1204 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:28,383 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:28,407 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-16 18:30:28,409 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:28,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1623543332] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:28,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:28,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-16 18:30:28,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862729468] [2025-03-16 18:30:28,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:28,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:30:28,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:28,411 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:30:28,411 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:30:28,411 INFO L87 Difference]: Start difference. First operand 501 states and 804 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-03-16 18:30:28,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:28,483 INFO L93 Difference]: Finished difference Result 1420 states and 2341 transitions. [2025-03-16 18:30:28,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:30:28,483 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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 109 [2025-03-16 18:30:28,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:28,488 INFO L225 Difference]: With dead ends: 1420 [2025-03-16 18:30:28,488 INFO L226 Difference]: Without dead ends: 958 [2025-03-16 18:30:28,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-16 18:30:28,491 INFO L435 NwaCegarLoop]: 880 mSDtfsCounter, 780 mSDsluCounter, 744 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 780 SdHoareTripleChecker+Valid, 1624 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:28,491 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [780 Valid, 1624 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:28,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 958 states. [2025-03-16 18:30:28,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 958 to 951. [2025-03-16 18:30:28,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 951 states, 733 states have (on average 1.6330150068212823) internal successors, (1197), 761 states have internal predecessors, (1197), 174 states have call successors, (174), 44 states have call predecessors, (174), 43 states have return successors, (184), 171 states have call predecessors, (184), 172 states have call successors, (184) [2025-03-16 18:30:28,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 951 states to 951 states and 1555 transitions. [2025-03-16 18:30:28,528 INFO L78 Accepts]: Start accepts. Automaton has 951 states and 1555 transitions. Word has length 109 [2025-03-16 18:30:28,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:28,528 INFO L471 AbstractCegarLoop]: Abstraction has 951 states and 1555 transitions. [2025-03-16 18:30:28,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 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) [2025-03-16 18:30:28,529 INFO L276 IsEmpty]: Start isEmpty. Operand 951 states and 1555 transitions. [2025-03-16 18:30:28,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-16 18:30:28,531 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:28,531 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:28,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-16 18:30:28,735 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 [2025-03-16 18:30:28,735 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:28,735 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:28,735 INFO L85 PathProgramCache]: Analyzing trace with hash -915651903, now seen corresponding path program 1 times [2025-03-16 18:30:28,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:28,735 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994371594] [2025-03-16 18:30:28,735 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:28,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:28,748 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-16 18:30:28,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-16 18:30:28,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:28,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:28,832 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-16 18:30:28,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:28,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994371594] [2025-03-16 18:30:28,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994371594] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:28,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [848589848] [2025-03-16 18:30:28,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:28,833 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:28,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:28,835 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) [2025-03-16 18:30:28,835 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-16 18:30:28,948 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-16 18:30:29,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-16 18:30:29,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:29,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:29,074 INFO L256 TraceCheckSpWp]: Trace formula consists of 1205 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-16 18:30:29,077 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:29,171 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-16 18:30:29,173 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:29,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [848589848] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:29,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:29,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-16 18:30:29,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244363524] [2025-03-16 18:30:29,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:29,174 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:29,174 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:29,174 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:29,174 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:30:29,175 INFO L87 Difference]: Start difference. First operand 951 states and 1555 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-03-16 18:30:29,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:29,636 INFO L93 Difference]: Finished difference Result 1879 states and 3143 transitions. [2025-03-16 18:30:29,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:29,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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 109 [2025-03-16 18:30:29,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:29,642 INFO L225 Difference]: With dead ends: 1879 [2025-03-16 18:30:29,642 INFO L226 Difference]: Without dead ends: 967 [2025-03-16 18:30:29,648 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:29,648 INFO L435 NwaCegarLoop]: 765 mSDtfsCounter, 746 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 421 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 750 SdHoareTripleChecker+Valid, 1939 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 421 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:29,648 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [750 Valid, 1939 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 421 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 18:30:29,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2025-03-16 18:30:29,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 967. [2025-03-16 18:30:29,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 967 states, 747 states have (on average 1.6345381526104417) internal successors, (1221), 775 states have internal predecessors, (1221), 174 states have call successors, (174), 46 states have call predecessors, (174), 45 states have return successors, (186), 171 states have call predecessors, (186), 172 states have call successors, (186) [2025-03-16 18:30:29,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 967 states to 967 states and 1581 transitions. [2025-03-16 18:30:29,685 INFO L78 Accepts]: Start accepts. Automaton has 967 states and 1581 transitions. Word has length 109 [2025-03-16 18:30:29,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:29,685 INFO L471 AbstractCegarLoop]: Abstraction has 967 states and 1581 transitions. [2025-03-16 18:30:29,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 4 states have internal predecessors, (72), 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) [2025-03-16 18:30:29,685 INFO L276 IsEmpty]: Start isEmpty. Operand 967 states and 1581 transitions. [2025-03-16 18:30:29,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-16 18:30:29,688 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:29,688 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:29,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:29,888 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 [2025-03-16 18:30:29,889 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:29,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:29,889 INFO L85 PathProgramCache]: Analyzing trace with hash 820574851, now seen corresponding path program 1 times [2025-03-16 18:30:29,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:29,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347762279] [2025-03-16 18:30:29,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:29,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:29,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-16 18:30:29,907 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-16 18:30:29,907 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:29,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:29,990 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-16 18:30:29,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347762279] [2025-03-16 18:30:29,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347762279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:29,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899302412] [2025-03-16 18:30:29,991 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:29,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:29,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:29,993 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) [2025-03-16 18:30:29,995 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-16 18:30:30,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-16 18:30:30,206 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-16 18:30:30,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:30,207 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:30,211 INFO L256 TraceCheckSpWp]: Trace formula consists of 1208 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-16 18:30:30,218 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:30,305 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-16 18:30:30,305 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:30,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899302412] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:30,305 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:30,305 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-16 18:30:30,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765435923] [2025-03-16 18:30:30,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:30,306 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:30,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:30,307 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:30,307 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:30:30,307 INFO L87 Difference]: Start difference. First operand 967 states and 1581 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, (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) [2025-03-16 18:30:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:30,715 INFO L93 Difference]: Finished difference Result 1911 states and 3189 transitions. [2025-03-16 18:30:30,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:30,716 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, (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 112 [2025-03-16 18:30:30,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:30,721 INFO L225 Difference]: With dead ends: 1911 [2025-03-16 18:30:30,721 INFO L226 Difference]: Without dead ends: 983 [2025-03-16 18:30:30,726 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:30,727 INFO L435 NwaCegarLoop]: 762 mSDtfsCounter, 740 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 420 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 1936 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 420 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:30,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 1936 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 420 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 18:30:30,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 983 states. [2025-03-16 18:30:30,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 983 to 983. [2025-03-16 18:30:30,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 983 states, 761 states have (on average 1.636005256241787) internal successors, (1245), 789 states have internal predecessors, (1245), 174 states have call successors, (174), 48 states have call predecessors, (174), 47 states have return successors, (188), 171 states have call predecessors, (188), 172 states have call successors, (188) [2025-03-16 18:30:30,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 983 states to 983 states and 1607 transitions. [2025-03-16 18:30:30,765 INFO L78 Accepts]: Start accepts. Automaton has 983 states and 1607 transitions. Word has length 112 [2025-03-16 18:30:30,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:30,765 INFO L471 AbstractCegarLoop]: Abstraction has 983 states and 1607 transitions. [2025-03-16 18:30:30,765 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, (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) [2025-03-16 18:30:30,765 INFO L276 IsEmpty]: Start isEmpty. Operand 983 states and 1607 transitions. [2025-03-16 18:30:30,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2025-03-16 18:30:30,767 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:30,767 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:30,775 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:30,968 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 [2025-03-16 18:30:30,968 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:30,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:30,968 INFO L85 PathProgramCache]: Analyzing trace with hash -1575955458, now seen corresponding path program 1 times [2025-03-16 18:30:30,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:30,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056565322] [2025-03-16 18:30:30,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:30,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:30,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-16 18:30:30,985 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-16 18:30:30,985 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:30,985 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:31,042 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-16 18:30:31,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056565322] [2025-03-16 18:30:31,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056565322] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:31,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [866199749] [2025-03-16 18:30:31,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:31,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:31,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:31,045 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) [2025-03-16 18:30:31,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-16 18:30:31,144 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 115 statements into 1 equivalence classes. [2025-03-16 18:30:31,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 115 of 115 statements. [2025-03-16 18:30:31,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:31,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:31,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 1211 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-16 18:30:31,265 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:31,337 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-16 18:30:31,337 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:31,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [866199749] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:31,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:31,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-16 18:30:31,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702524855] [2025-03-16 18:30:31,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:31,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:31,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:31,339 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:31,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:30:31,339 INFO L87 Difference]: Start difference. First operand 983 states and 1607 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-16 18:30:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:31,714 INFO L93 Difference]: Finished difference Result 1943 states and 3235 transitions. [2025-03-16 18:30:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:31,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 115 [2025-03-16 18:30:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:31,720 INFO L225 Difference]: With dead ends: 1943 [2025-03-16 18:30:31,721 INFO L226 Difference]: Without dead ends: 999 [2025-03-16 18:30:31,726 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 [2025-03-16 18:30:31,727 INFO L435 NwaCegarLoop]: 759 mSDtfsCounter, 739 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 749 SdHoareTripleChecker+Valid, 1933 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:31,727 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [749 Valid, 1933 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 18:30:31,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2025-03-16 18:30:31,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 999. [2025-03-16 18:30:31,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 999 states, 775 states have (on average 1.6374193548387097) internal successors, (1269), 803 states have internal predecessors, (1269), 174 states have call successors, (174), 50 states have call predecessors, (174), 49 states have return successors, (190), 171 states have call predecessors, (190), 172 states have call successors, (190) [2025-03-16 18:30:31,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 999 states to 999 states and 1633 transitions. [2025-03-16 18:30:31,758 INFO L78 Accepts]: Start accepts. Automaton has 999 states and 1633 transitions. Word has length 115 [2025-03-16 18:30:31,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:31,758 INFO L471 AbstractCegarLoop]: Abstraction has 999 states and 1633 transitions. [2025-03-16 18:30:31,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 4 states have internal predecessors, (76), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-16 18:30:31,758 INFO L276 IsEmpty]: Start isEmpty. Operand 999 states and 1633 transitions. [2025-03-16 18:30:31,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2025-03-16 18:30:31,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:31,760 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:31,768 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-16 18:30:31,965 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 [2025-03-16 18:30:31,965 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:31,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:31,966 INFO L85 PathProgramCache]: Analyzing trace with hash 815593018, now seen corresponding path program 1 times [2025-03-16 18:30:31,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:31,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877140909] [2025-03-16 18:30:31,966 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:31,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:31,977 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-16 18:30:31,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-16 18:30:31,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:31,982 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:32,046 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-16 18:30:32,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877140909] [2025-03-16 18:30:32,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877140909] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:32,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563179614] [2025-03-16 18:30:32,047 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:32,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:32,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:32,050 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) [2025-03-16 18:30:32,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-16 18:30:32,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 118 statements into 1 equivalence classes. [2025-03-16 18:30:32,244 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 118 of 118 statements. [2025-03-16 18:30:32,244 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:32,244 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:32,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 1214 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-16 18:30:32,250 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:32,320 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-16 18:30:32,320 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:32,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563179614] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:32,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:32,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-16 18:30:32,320 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245564285] [2025-03-16 18:30:32,320 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:32,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:32,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:32,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:32,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-16 18:30:32,323 INFO L87 Difference]: Start difference. First operand 999 states and 1633 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-16 18:30:32,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:32,737 INFO L93 Difference]: Finished difference Result 1975 states and 3281 transitions. [2025-03-16 18:30:32,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:32,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 118 [2025-03-16 18:30:32,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:32,745 INFO L225 Difference]: With dead ends: 1975 [2025-03-16 18:30:32,746 INFO L226 Difference]: Without dead ends: 1015 [2025-03-16 18:30:32,751 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:32,752 INFO L435 NwaCegarLoop]: 756 mSDtfsCounter, 735 mSDsluCounter, 1174 mSDsCounter, 0 mSdLazyCounter, 418 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 748 SdHoareTripleChecker+Valid, 1930 SdHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 418 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:32,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [748 Valid, 1930 Invalid, 436 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 418 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-16 18:30:32,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2025-03-16 18:30:32,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 1015. [2025-03-16 18:30:32,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1015 states, 789 states have (on average 1.638783269961977) internal successors, (1293), 817 states have internal predecessors, (1293), 174 states have call successors, (174), 52 states have call predecessors, (174), 51 states have return successors, (192), 171 states have call predecessors, (192), 172 states have call successors, (192) [2025-03-16 18:30:32,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1015 states to 1015 states and 1659 transitions. [2025-03-16 18:30:32,794 INFO L78 Accepts]: Start accepts. Automaton has 1015 states and 1659 transitions. Word has length 118 [2025-03-16 18:30:32,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:32,794 INFO L471 AbstractCegarLoop]: Abstraction has 1015 states and 1659 transitions. [2025-03-16 18:30:32,794 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 4 states have internal predecessors, (78), 2 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2025-03-16 18:30:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 1015 states and 1659 transitions. [2025-03-16 18:30:32,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2025-03-16 18:30:32,797 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:32,797 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:32,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-16 18:30:32,997 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 [2025-03-16 18:30:32,998 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:32,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:32,999 INFO L85 PathProgramCache]: Analyzing trace with hash 616706747, now seen corresponding path program 1 times [2025-03-16 18:30:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:32,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160796722] [2025-03-16 18:30:32,999 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:32,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:33,012 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-16 18:30:33,021 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-16 18:30:33,021 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:33,021 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:33,171 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-16 18:30:33,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160796722] [2025-03-16 18:30:33,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160796722] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:33,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193344093] [2025-03-16 18:30:33,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:33,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:33,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:33,173 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) [2025-03-16 18:30:33,175 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-16 18:30:33,279 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 121 statements into 1 equivalence classes. [2025-03-16 18:30:33,367 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 121 of 121 statements. [2025-03-16 18:30:33,367 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:33,367 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:33,374 INFO L256 TraceCheckSpWp]: Trace formula consists of 1217 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-16 18:30:33,377 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:33,495 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-16 18:30:33,496 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:33,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193344093] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:33,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:33,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2025-03-16 18:30:33,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809497654] [2025-03-16 18:30:33,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:33,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:30:33,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:33,498 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:30:33,498 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:30:33,498 INFO L87 Difference]: Start difference. First operand 1015 states and 1659 transitions. Second operand has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-16 18:30:33,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:33,929 INFO L93 Difference]: Finished difference Result 2001 states and 3297 transitions. [2025-03-16 18:30:33,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:30:33,930 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 121 [2025-03-16 18:30:33,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:33,935 INFO L225 Difference]: With dead ends: 2001 [2025-03-16 18:30:33,935 INFO L226 Difference]: Without dead ends: 1025 [2025-03-16 18:30:33,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:30:33,941 INFO L435 NwaCegarLoop]: 867 mSDtfsCounter, 772 mSDsluCounter, 2441 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 778 SdHoareTripleChecker+Valid, 3308 SdHoareTripleChecker+Invalid, 609 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:33,941 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [778 Valid, 3308 Invalid, 609 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-16 18:30:33,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2025-03-16 18:30:33,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 1018. [2025-03-16 18:30:33,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1018 states, 791 states have (on average 1.6371681415929205) internal successors, (1295), 820 states have internal predecessors, (1295), 174 states have call successors, (174), 52 states have call predecessors, (174), 52 states have return successors, (193), 171 states have call predecessors, (193), 172 states have call successors, (193) [2025-03-16 18:30:33,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1018 states to 1018 states and 1662 transitions. [2025-03-16 18:30:33,973 INFO L78 Accepts]: Start accepts. Automaton has 1018 states and 1662 transitions. Word has length 121 [2025-03-16 18:30:33,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:33,974 INFO L471 AbstractCegarLoop]: Abstraction has 1018 states and 1662 transitions. [2025-03-16 18:30:33,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.0) internal successors, (84), 5 states have internal predecessors, (84), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2025-03-16 18:30:33,974 INFO L276 IsEmpty]: Start isEmpty. Operand 1018 states and 1662 transitions. [2025-03-16 18:30:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2025-03-16 18:30:33,976 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:33,976 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] [2025-03-16 18:30:33,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:34,176 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 [2025-03-16 18:30:34,177 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:34,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:34,177 INFO L85 PathProgramCache]: Analyzing trace with hash 1041869909, now seen corresponding path program 1 times [2025-03-16 18:30:34,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:34,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041039707] [2025-03-16 18:30:34,177 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:34,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:34,187 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 18:30:34,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 18:30:34,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:34,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:34,352 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-16 18:30:34,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:34,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041039707] [2025-03-16 18:30:34,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041039707] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:34,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1318677746] [2025-03-16 18:30:34,352 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:34,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:34,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:34,354 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) [2025-03-16 18:30:34,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-16 18:30:34,454 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 123 statements into 1 equivalence classes. [2025-03-16 18:30:34,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 123 of 123 statements. [2025-03-16 18:30:34,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:34,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:34,543 INFO L256 TraceCheckSpWp]: Trace formula consists of 1213 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-16 18:30:34,546 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:34,646 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-16 18:30:34,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:34,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1318677746] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:34,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:34,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-16 18:30:34,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207781084] [2025-03-16 18:30:34,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:34,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:34,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:34,647 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:34,647 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:34,647 INFO L87 Difference]: Start difference. First operand 1018 states and 1662 transitions. Second operand has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (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) [2025-03-16 18:30:34,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:34,955 INFO L93 Difference]: Finished difference Result 2015 states and 3335 transitions. [2025-03-16 18:30:34,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-16 18:30:34,956 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (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 123 [2025-03-16 18:30:34,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:34,961 INFO L225 Difference]: With dead ends: 2015 [2025-03-16 18:30:34,962 INFO L226 Difference]: Without dead ends: 1036 [2025-03-16 18:30:34,966 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-16 18:30:34,967 INFO L435 NwaCegarLoop]: 810 mSDtfsCounter, 717 mSDsluCounter, 2167 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 717 SdHoareTripleChecker+Valid, 2977 SdHoareTripleChecker+Invalid, 270 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:34,967 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [717 Valid, 2977 Invalid, 270 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-16 18:30:34,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2025-03-16 18:30:35,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 1028. [2025-03-16 18:30:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 797 states have (on average 1.6323713927227101) internal successors, (1301), 829 states have internal predecessors, (1301), 176 states have call successors, (176), 53 states have call predecessors, (176), 54 states have return successors, (203), 171 states have call predecessors, (203), 174 states have call successors, (203) [2025-03-16 18:30:35,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1680 transitions. [2025-03-16 18:30:35,027 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1680 transitions. Word has length 123 [2025-03-16 18:30:35,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:35,027 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1680 transitions. [2025-03-16 18:30:35,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.4) internal successors, (82), 4 states have internal predecessors, (82), 2 states have call successors, (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) [2025-03-16 18:30:35,028 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1680 transitions. [2025-03-16 18:30:35,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-16 18:30:35,030 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:35,030 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] [2025-03-16 18:30:35,038 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:35,231 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 [2025-03-16 18:30:35,231 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:35,232 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:35,232 INFO L85 PathProgramCache]: Analyzing trace with hash 174463861, now seen corresponding path program 1 times [2025-03-16 18:30:35,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:35,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008899219] [2025-03-16 18:30:35,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:35,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:35,243 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:35,250 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:35,250 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:35,250 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:35,408 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-16 18:30:35,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:35,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008899219] [2025-03-16 18:30:35,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008899219] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:35,408 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [186234547] [2025-03-16 18:30:35,408 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:35,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:35,408 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:35,410 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) [2025-03-16 18:30:35,412 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-16 18:30:35,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:35,608 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:35,609 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:35,609 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:35,612 INFO L256 TraceCheckSpWp]: Trace formula consists of 1230 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-16 18:30:35,615 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:35,626 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-16 18:30:35,626 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:35,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [186234547] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:35,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:35,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-03-16 18:30:35,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203118964] [2025-03-16 18:30:35,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:35,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:30:35,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:35,627 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:30:35,627 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:35,627 INFO L87 Difference]: Start difference. First operand 1028 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2025-03-16 18:30:35,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:35,685 INFO L93 Difference]: Finished difference Result 2502 states and 4155 transitions. [2025-03-16 18:30:35,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:30:35,686 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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 128 [2025-03-16 18:30:35,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:35,694 INFO L225 Difference]: With dead ends: 2502 [2025-03-16 18:30:35,694 INFO L226 Difference]: Without dead ends: 1514 [2025-03-16 18:30:35,699 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:35,702 INFO L435 NwaCegarLoop]: 1509 mSDtfsCounter, 747 mSDsluCounter, 776 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 2285 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 [2025-03-16 18:30:35,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 2285 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:35,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2025-03-16 18:30:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1028. [2025-03-16 18:30:35,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 797 states have (on average 1.631116687578419) internal successors, (1300), 829 states have internal predecessors, (1300), 176 states have call successors, (176), 53 states have call predecessors, (176), 54 states have return successors, (203), 171 states have call predecessors, (203), 174 states have call successors, (203) [2025-03-16 18:30:35,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1679 transitions. [2025-03-16 18:30:35,742 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1679 transitions. Word has length 128 [2025-03-16 18:30:35,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:35,742 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1679 transitions. [2025-03-16 18:30:35,742 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 3 states have internal predecessors, (85), 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) [2025-03-16 18:30:35,742 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1679 transitions. [2025-03-16 18:30:35,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-16 18:30:35,744 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:35,744 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] [2025-03-16 18:30:35,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:35,945 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 [2025-03-16 18:30:35,945 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:35,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:35,946 INFO L85 PathProgramCache]: Analyzing trace with hash 525263798, now seen corresponding path program 1 times [2025-03-16 18:30:35,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:35,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [512548539] [2025-03-16 18:30:35,947 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:35,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:35,957 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:35,963 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:35,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:35,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:36,124 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-16 18:30:36,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:36,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [512548539] [2025-03-16 18:30:36,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [512548539] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:36,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1505221041] [2025-03-16 18:30:36,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:36,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:36,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:36,127 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) [2025-03-16 18:30:36,128 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-16 18:30:36,232 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:36,321 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:36,321 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:36,321 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:36,325 INFO L256 TraceCheckSpWp]: Trace formula consists of 1229 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-16 18:30:36,327 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:36,397 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-16 18:30:36,398 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:36,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1505221041] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:36,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:36,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-16 18:30:36,398 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125040551] [2025-03-16 18:30:36,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:36,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-16 18:30:36,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:36,399 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-16 18:30:36,399 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:36,399 INFO L87 Difference]: Start difference. First operand 1028 states and 1679 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2025-03-16 18:30:36,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:36,461 INFO L93 Difference]: Finished difference Result 2586 states and 4246 transitions. [2025-03-16 18:30:36,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:36,462 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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 128 [2025-03-16 18:30:36,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:36,469 INFO L225 Difference]: With dead ends: 2586 [2025-03-16 18:30:36,469 INFO L226 Difference]: Without dead ends: 1599 [2025-03-16 18:30:36,473 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-03-16 18:30:36,473 INFO L435 NwaCegarLoop]: 858 mSDtfsCounter, 343 mSDsluCounter, 2496 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3354 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 [2025-03-16 18:30:36,473 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 3354 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:36,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1599 states. [2025-03-16 18:30:36,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1599 to 1599. [2025-03-16 18:30:36,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1599 states, 1247 states have (on average 1.6046511627906976) internal successors, (2001), 1284 states have internal predecessors, (2001), 260 states have call successors, (260), 89 states have call predecessors, (260), 91 states have return successors, (339), 251 states have call predecessors, (339), 256 states have call successors, (339) [2025-03-16 18:30:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1599 states to 1599 states and 2600 transitions. [2025-03-16 18:30:36,526 INFO L78 Accepts]: Start accepts. Automaton has 1599 states and 2600 transitions. Word has length 128 [2025-03-16 18:30:36,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:36,527 INFO L471 AbstractCegarLoop]: Abstraction has 1599 states and 2600 transitions. [2025-03-16 18:30:36,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 5 states have internal predecessors, (85), 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) [2025-03-16 18:30:36,527 INFO L276 IsEmpty]: Start isEmpty. Operand 1599 states and 2600 transitions. [2025-03-16 18:30:36,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2025-03-16 18:30:36,530 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:36,530 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] [2025-03-16 18:30:36,538 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-16 18:30:36,731 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 [2025-03-16 18:30:36,731 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:36,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:36,731 INFO L85 PathProgramCache]: Analyzing trace with hash -82813065, now seen corresponding path program 1 times [2025-03-16 18:30:36,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:36,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885065702] [2025-03-16 18:30:36,731 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:36,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:36,740 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:36,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:36,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:36,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:36,901 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-16 18:30:36,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:36,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885065702] [2025-03-16 18:30:36,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885065702] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:36,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325138909] [2025-03-16 18:30:36,902 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:36,902 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:36,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:36,906 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) [2025-03-16 18:30:36,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-16 18:30:37,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 128 statements into 1 equivalence classes. [2025-03-16 18:30:37,088 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 128 of 128 statements. [2025-03-16 18:30:37,088 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:37,088 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:37,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 1226 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-16 18:30:37,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:37,151 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-16 18:30:37,151 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:37,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [325138909] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:37,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:37,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-03-16 18:30:37,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107411407] [2025-03-16 18:30:37,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:37,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-16 18:30:37,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:37,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-16 18:30:37,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:37,153 INFO L87 Difference]: Start difference. First operand 1599 states and 2600 transitions. Second operand has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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) [2025-03-16 18:30:37,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:37,192 INFO L93 Difference]: Finished difference Result 2907 states and 4719 transitions. [2025-03-16 18:30:37,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-16 18:30:37,193 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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 128 [2025-03-16 18:30:37,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:37,200 INFO L225 Difference]: With dead ends: 2907 [2025-03-16 18:30:37,200 INFO L226 Difference]: Without dead ends: 1349 [2025-03-16 18:30:37,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-16 18:30:37,205 INFO L435 NwaCegarLoop]: 889 mSDtfsCounter, 509 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 509 SdHoareTripleChecker+Valid, 1278 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 [2025-03-16 18:30:37,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [509 Valid, 1278 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:30:37,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1349 states. [2025-03-16 18:30:37,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1349 to 1349. [2025-03-16 18:30:37,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1349 states, 1049 states have (on average 1.5862726406101049) internal successors, (1664), 1077 states have internal predecessors, (1664), 219 states have call successors, (219), 81 states have call predecessors, (219), 80 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:37,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1349 states to 1349 states and 2158 transitions. [2025-03-16 18:30:37,242 INFO L78 Accepts]: Start accepts. Automaton has 1349 states and 2158 transitions. Word has length 128 [2025-03-16 18:30:37,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:37,242 INFO L471 AbstractCegarLoop]: Abstraction has 1349 states and 2158 transitions. [2025-03-16 18:30:37,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.333333333333332) internal successors, (85), 2 states have internal predecessors, (85), 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) [2025-03-16 18:30:37,242 INFO L276 IsEmpty]: Start isEmpty. Operand 1349 states and 2158 transitions. [2025-03-16 18:30:37,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2025-03-16 18:30:37,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:37,246 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] [2025-03-16 18:30:37,254 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-16 18:30:37,446 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 [2025-03-16 18:30:37,447 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:37,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:37,447 INFO L85 PathProgramCache]: Analyzing trace with hash -853756880, now seen corresponding path program 1 times [2025-03-16 18:30:37,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:37,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994383685] [2025-03-16 18:30:37,447 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:37,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:37,459 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-16 18:30:37,465 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-16 18:30:37,465 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:37,465 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:37,628 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-16 18:30:37,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:37,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994383685] [2025-03-16 18:30:37,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994383685] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:37,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482713964] [2025-03-16 18:30:37,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:37,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:37,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:37,631 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) [2025-03-16 18:30:37,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-16 18:30:37,750 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 151 statements into 1 equivalence classes. [2025-03-16 18:30:37,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 151 of 151 statements. [2025-03-16 18:30:37,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:37,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:37,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 1321 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:37,846 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:37,868 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-16 18:30:37,868 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:37,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482713964] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:37,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:37,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-16 18:30:37,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538288582] [2025-03-16 18:30:37,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:37,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:37,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:37,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:37,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-16 18:30:37,869 INFO L87 Difference]: Start difference. First operand 1349 states and 2158 transitions. Second operand has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2025-03-16 18:30:38,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:38,034 INFO L93 Difference]: Finished difference Result 2747 states and 4452 transitions. [2025-03-16 18:30:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:38,034 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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 151 [2025-03-16 18:30:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:38,042 INFO L225 Difference]: With dead ends: 2747 [2025-03-16 18:30:38,042 INFO L226 Difference]: Without dead ends: 1439 [2025-03-16 18:30:38,047 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:38,047 INFO L435 NwaCegarLoop]: 723 mSDtfsCounter, 144 mSDsluCounter, 1423 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2146 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 [2025-03-16 18:30:38,047 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2146 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1439 states. [2025-03-16 18:30:38,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1439 to 1427. [2025-03-16 18:30:38,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1125 states have (on average 1.6088888888888888) internal successors, (1810), 1153 states have internal predecessors, (1810), 219 states have call successors, (219), 83 states have call predecessors, (219), 82 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:38,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2304 transitions. [2025-03-16 18:30:38,090 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2304 transitions. Word has length 151 [2025-03-16 18:30:38,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:38,090 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 2304 transitions. [2025-03-16 18:30:38,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.5) internal successors, (106), 4 states have internal predecessors, (106), 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) [2025-03-16 18:30:38,090 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2304 transitions. [2025-03-16 18:30:38,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2025-03-16 18:30:38,093 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:38,093 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] [2025-03-16 18:30:38,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-16 18:30:38,293 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 [2025-03-16 18:30:38,294 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:38,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:38,294 INFO L85 PathProgramCache]: Analyzing trace with hash -161663374, now seen corresponding path program 1 times [2025-03-16 18:30:38,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:38,294 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921626702] [2025-03-16 18:30:38,294 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:38,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:38,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-16 18:30:38,309 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-16 18:30:38,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:38,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:38,442 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-16 18:30:38,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:38,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921626702] [2025-03-16 18:30:38,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921626702] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:38,442 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729666995] [2025-03-16 18:30:38,442 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:38,442 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:38,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:38,445 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) [2025-03-16 18:30:38,445 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-16 18:30:38,551 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 156 statements into 1 equivalence classes. [2025-03-16 18:30:38,627 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 156 of 156 statements. [2025-03-16 18:30:38,627 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:38,627 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:38,630 INFO L256 TraceCheckSpWp]: Trace formula consists of 1326 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:38,633 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:38,653 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-16 18:30:38,653 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:38,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729666995] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:38,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:38,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-16 18:30:38,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478585840] [2025-03-16 18:30:38,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:38,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:38,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:38,654 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:38,655 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-16 18:30:38,655 INFO L87 Difference]: Start difference. First operand 1427 states and 2304 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) [2025-03-16 18:30:38,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:38,826 INFO L93 Difference]: Finished difference Result 2909 states and 4746 transitions. [2025-03-16 18:30:38,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:38,826 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 156 [2025-03-16 18:30:38,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:38,834 INFO L225 Difference]: With dead ends: 2909 [2025-03-16 18:30:38,834 INFO L226 Difference]: Without dead ends: 1523 [2025-03-16 18:30:38,838 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:38,838 INFO L435 NwaCegarLoop]: 722 mSDtfsCounter, 142 mSDsluCounter, 1421 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2143 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 [2025-03-16 18:30:38,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2143 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:38,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1523 states. [2025-03-16 18:30:38,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1523 to 1505. [2025-03-16 18:30:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1505 states, 1201 states have (on average 1.6286427976686095) internal successors, (1956), 1229 states have internal predecessors, (1956), 219 states have call successors, (219), 85 states have call predecessors, (219), 84 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:38,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2450 transitions. [2025-03-16 18:30:38,882 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2450 transitions. Word has length 156 [2025-03-16 18:30:38,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:38,882 INFO L471 AbstractCegarLoop]: Abstraction has 1505 states and 2450 transitions. [2025-03-16 18:30:38,882 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) [2025-03-16 18:30:38,883 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2450 transitions. [2025-03-16 18:30:38,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-16 18:30:38,886 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:38,886 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] [2025-03-16 18:30:38,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:39,087 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 [2025-03-16 18:30:39,088 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:39,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:39,089 INFO L85 PathProgramCache]: Analyzing trace with hash -898043758, now seen corresponding path program 1 times [2025-03-16 18:30:39,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:39,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152437460] [2025-03-16 18:30:39,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:39,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:39,099 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-16 18:30:39,104 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-16 18:30:39,104 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:39,104 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:39,228 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-16 18:30:39,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:39,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152437460] [2025-03-16 18:30:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152437460] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:39,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [461374478] [2025-03-16 18:30:39,229 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:39,229 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:39,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:39,231 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) [2025-03-16 18:30:39,232 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-16 18:30:39,341 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-16 18:30:39,418 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-16 18:30:39,418 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:39,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:39,421 INFO L256 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:39,424 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:39,448 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-16 18:30:39,449 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:39,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [461374478] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:39,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:39,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-16 18:30:39,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556947049] [2025-03-16 18:30:39,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:39,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:39,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:39,450 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:39,450 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-16 18:30:39,450 INFO L87 Difference]: Start difference. First operand 1505 states and 2450 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) [2025-03-16 18:30:39,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:39,587 INFO L93 Difference]: Finished difference Result 3071 states and 5040 transitions. [2025-03-16 18:30:39,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:39,588 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 [2025-03-16 18:30:39,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:39,599 INFO L225 Difference]: With dead ends: 3071 [2025-03-16 18:30:39,601 INFO L226 Difference]: Without dead ends: 1607 [2025-03-16 18:30:39,606 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 [2025-03-16 18:30:39,607 INFO L435 NwaCegarLoop]: 721 mSDtfsCounter, 140 mSDsluCounter, 1419 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2140 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 [2025-03-16 18:30:39,607 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2140 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:39,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2025-03-16 18:30:39,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1583. [2025-03-16 18:30:39,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1583 states, 1277 states have (on average 1.6460454189506657) internal successors, (2102), 1305 states have internal predecessors, (2102), 219 states have call successors, (219), 87 states have call predecessors, (219), 86 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:39,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1583 states to 1583 states and 2596 transitions. [2025-03-16 18:30:39,666 INFO L78 Accepts]: Start accepts. Automaton has 1583 states and 2596 transitions. Word has length 160 [2025-03-16 18:30:39,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:39,666 INFO L471 AbstractCegarLoop]: Abstraction has 1583 states and 2596 transitions. [2025-03-16 18:30:39,666 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) [2025-03-16 18:30:39,666 INFO L276 IsEmpty]: Start isEmpty. Operand 1583 states and 2596 transitions. [2025-03-16 18:30:39,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-03-16 18:30:39,669 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:39,669 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] [2025-03-16 18:30:39,677 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:39,869 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 [2025-03-16 18:30:39,870 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:39,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:39,871 INFO L85 PathProgramCache]: Analyzing trace with hash -413792178, now seen corresponding path program 1 times [2025-03-16 18:30:39,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:39,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366426628] [2025-03-16 18:30:39,871 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:39,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:39,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-16 18:30:39,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-16 18:30:39,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:39,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-16 18:30:40,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:40,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366426628] [2025-03-16 18:30:40,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366426628] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:40,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214432311] [2025-03-16 18:30:40,016 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:40,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:40,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:40,018 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:30:40,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-16 18:30:40,133 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-03-16 18:30:40,222 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-03-16 18:30:40,223 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:40,223 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:40,226 INFO L256 TraceCheckSpWp]: Trace formula consists of 1333 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:40,229 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:40,252 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-16 18:30:40,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:40,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214432311] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:40,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:40,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-16 18:30:40,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071665636] [2025-03-16 18:30:40,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:40,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:40,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:40,253 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:40,253 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-16 18:30:40,253 INFO L87 Difference]: Start difference. First operand 1583 states and 2596 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) [2025-03-16 18:30:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:40,384 INFO L93 Difference]: Finished difference Result 3233 states and 5334 transitions. [2025-03-16 18:30:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:40,385 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 163 [2025-03-16 18:30:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:40,393 INFO L225 Difference]: With dead ends: 3233 [2025-03-16 18:30:40,393 INFO L226 Difference]: Without dead ends: 1691 [2025-03-16 18:30:40,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:40,398 INFO L435 NwaCegarLoop]: 720 mSDtfsCounter, 138 mSDsluCounter, 1417 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2137 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 [2025-03-16 18:30:40,398 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2137 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2025-03-16 18:30:40,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1661. [2025-03-16 18:30:40,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1661 states, 1353 states have (on average 1.6614929785661492) internal successors, (2248), 1381 states have internal predecessors, (2248), 219 states have call successors, (219), 89 states have call predecessors, (219), 88 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:40,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1661 states to 1661 states and 2742 transitions. [2025-03-16 18:30:40,444 INFO L78 Accepts]: Start accepts. Automaton has 1661 states and 2742 transitions. Word has length 163 [2025-03-16 18:30:40,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:40,446 INFO L471 AbstractCegarLoop]: Abstraction has 1661 states and 2742 transitions. [2025-03-16 18:30:40,446 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) [2025-03-16 18:30:40,446 INFO L276 IsEmpty]: Start isEmpty. Operand 1661 states and 2742 transitions. [2025-03-16 18:30:40,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-16 18:30:40,449 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:40,449 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] [2025-03-16 18:30:40,457 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-03-16 18:30:40,650 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 [2025-03-16 18:30:40,650 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:40,650 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:40,651 INFO L85 PathProgramCache]: Analyzing trace with hash -834921800, now seen corresponding path program 1 times [2025-03-16 18:30:40,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:40,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265924811] [2025-03-16 18:30:40,651 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:40,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:40,665 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-16 18:30:40,673 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-16 18:30:40,673 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:40,673 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-16 18:30:40,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265924811] [2025-03-16 18:30:40,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265924811] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:40,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223338550] [2025-03-16 18:30:40,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:40,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:40,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:40,810 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) [2025-03-16 18:30:40,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-16 18:30:40,917 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-16 18:30:41,005 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-16 18:30:41,005 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:41,005 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:41,008 INFO L256 TraceCheckSpWp]: Trace formula consists of 1335 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-16 18:30:41,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:41,034 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-16 18:30:41,034 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:41,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223338550] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:41,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:41,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-16 18:30:41,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16556199] [2025-03-16 18:30:41,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:41,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-16 18:30:41,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:41,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-16 18:30:41,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-16 18:30:41,035 INFO L87 Difference]: Start difference. First operand 1661 states and 2742 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) [2025-03-16 18:30:41,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:41,174 INFO L93 Difference]: Finished difference Result 3395 states and 5628 transitions. [2025-03-16 18:30:41,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-16 18:30:41,174 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 165 [2025-03-16 18:30:41,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:41,182 INFO L225 Difference]: With dead ends: 3395 [2025-03-16 18:30:41,182 INFO L226 Difference]: Without dead ends: 1775 [2025-03-16 18:30:41,187 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-16 18:30:41,187 INFO L435 NwaCegarLoop]: 718 mSDtfsCounter, 136 mSDsluCounter, 1412 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2130 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 [2025-03-16 18:30:41,187 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2130 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:41,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2025-03-16 18:30:41,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1739. [2025-03-16 18:30:41,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1739 states, 1429 states have (on average 1.6752974107767669) internal successors, (2394), 1457 states have internal predecessors, (2394), 219 states have call successors, (219), 91 states have call predecessors, (219), 90 states have return successors, (275), 214 states have call predecessors, (275), 215 states have call successors, (275) [2025-03-16 18:30:41,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1739 states to 1739 states and 2888 transitions. [2025-03-16 18:30:41,226 INFO L78 Accepts]: Start accepts. Automaton has 1739 states and 2888 transitions. Word has length 165 [2025-03-16 18:30:41,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:41,227 INFO L471 AbstractCegarLoop]: Abstraction has 1739 states and 2888 transitions. [2025-03-16 18:30:41,227 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) [2025-03-16 18:30:41,227 INFO L276 IsEmpty]: Start isEmpty. Operand 1739 states and 2888 transitions. [2025-03-16 18:30:41,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2025-03-16 18:30:41,230 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:41,230 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] [2025-03-16 18:30:41,240 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-03-16 18:30:41,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-03-16 18:30:41,431 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:41,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash 1183784156, now seen corresponding path program 1 times [2025-03-16 18:30:41,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:41,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404268832] [2025-03-16 18:30:41,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:41,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:41,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-16 18:30:41,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-16 18:30:41,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:41,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:41,603 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-16 18:30:41,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404268832] [2025-03-16 18:30:41,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404268832] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:41,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692349784] [2025-03-16 18:30:41,604 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:41,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:41,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:41,606 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) [2025-03-16 18:30:41,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-16 18:30:41,727 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 165 statements into 1 equivalence classes. [2025-03-16 18:30:41,824 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 165 of 165 statements. [2025-03-16 18:30:41,824 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:41,824 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:41,828 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-16 18:30:41,832 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-16 18:30:41,996 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:30:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692349784] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:41,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:30:41,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2025-03-16 18:30:41,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140059905] [2025-03-16 18:30:41,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:41,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-16 18:30:41,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:41,997 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-16 18:30:41,997 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-16 18:30:41,997 INFO L87 Difference]: Start difference. First operand 1739 states and 2888 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 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) [2025-03-16 18:30:43,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:43,772 INFO L93 Difference]: Finished difference Result 5420 states and 9143 transitions. [2025-03-16 18:30:43,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-16 18:30:43,773 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 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 165 [2025-03-16 18:30:43,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:43,790 INFO L225 Difference]: With dead ends: 5420 [2025-03-16 18:30:43,790 INFO L226 Difference]: Without dead ends: 3366 [2025-03-16 18:30:43,799 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2025-03-16 18:30:43,799 INFO L435 NwaCegarLoop]: 390 mSDtfsCounter, 1751 mSDsluCounter, 1936 mSDsCounter, 0 mSdLazyCounter, 3602 mSolverCounterSat, 426 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1852 SdHoareTripleChecker+Valid, 2326 SdHoareTripleChecker+Invalid, 4028 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 426 IncrementalHoareTripleChecker+Valid, 3602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-16 18:30:43,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1852 Valid, 2326 Invalid, 4028 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [426 Valid, 3602 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-16 18:30:43,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3366 states. [2025-03-16 18:30:43,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3366 to 3346. [2025-03-16 18:30:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3346 states, 2707 states have (on average 1.6775027705947543) internal successors, (4541), 2789 states have internal predecessors, (4541), 455 states have call successors, (455), 163 states have call predecessors, (455), 183 states have return successors, (599), 451 states have call predecessors, (599), 451 states have call successors, (599) [2025-03-16 18:30:43,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3346 states to 3346 states and 5595 transitions. [2025-03-16 18:30:43,910 INFO L78 Accepts]: Start accepts. Automaton has 3346 states and 5595 transitions. Word has length 165 [2025-03-16 18:30:43,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:43,910 INFO L471 AbstractCegarLoop]: Abstraction has 3346 states and 5595 transitions. [2025-03-16 18:30:43,910 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 7 states have internal predecessors, (106), 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) [2025-03-16 18:30:43,911 INFO L276 IsEmpty]: Start isEmpty. Operand 3346 states and 5595 transitions. [2025-03-16 18:30:43,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2025-03-16 18:30:43,916 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:43,916 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] [2025-03-16 18:30:43,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-16 18:30:44,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:44,117 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:44,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:44,117 INFO L85 PathProgramCache]: Analyzing trace with hash -619621482, now seen corresponding path program 1 times [2025-03-16 18:30:44,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:44,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [962026217] [2025-03-16 18:30:44,117 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:44,117 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:44,126 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 168 statements into 1 equivalence classes. [2025-03-16 18:30:44,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 168 of 168 statements. [2025-03-16 18:30:44,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:44,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:44,208 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-16 18:30:44,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:44,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [962026217] [2025-03-16 18:30:44,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [962026217] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:30:44,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-16 18:30:44,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-16 18:30:44,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736706829] [2025-03-16 18:30:44,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:30:44,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-16 18:30:44,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:44,209 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-16 18:30:44,209 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-16 18:30:44,209 INFO L87 Difference]: Start difference. First operand 3346 states and 5595 transitions. Second operand has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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) [2025-03-16 18:30:44,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:30:44,342 INFO L93 Difference]: Finished difference Result 6522 states and 10934 transitions. [2025-03-16 18:30:44,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-16 18:30:44,343 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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 168 [2025-03-16 18:30:44,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:30:44,357 INFO L225 Difference]: With dead ends: 6522 [2025-03-16 18:30:44,357 INFO L226 Difference]: Without dead ends: 3079 [2025-03-16 18:30:44,367 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 [2025-03-16 18:30:44,368 INFO L435 NwaCegarLoop]: 761 mSDtfsCounter, 33 mSDsluCounter, 4534 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5295 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 [2025-03-16 18:30:44,368 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5295 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-16 18:30:44,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3079 states. [2025-03-16 18:30:44,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3079 to 3067. [2025-03-16 18:30:44,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3067 states, 2528 states have (on average 1.6993670886075949) internal successors, (4296), 2597 states have internal predecessors, (4296), 375 states have call successors, (375), 151 states have call predecessors, (375), 163 states have return successors, (469), 366 states have call predecessors, (469), 371 states have call successors, (469) [2025-03-16 18:30:44,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 5140 transitions. [2025-03-16 18:30:44,438 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 5140 transitions. Word has length 168 [2025-03-16 18:30:44,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:30:44,438 INFO L471 AbstractCegarLoop]: Abstraction has 3067 states and 5140 transitions. [2025-03-16 18:30:44,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 14.714285714285714) internal successors, (103), 7 states have internal predecessors, (103), 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) [2025-03-16 18:30:44,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 5140 transitions. [2025-03-16 18:30:44,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2025-03-16 18:30:44,447 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:30:44,447 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:30:44,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-16 18:30:44,448 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:30:44,448 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:30:44,448 INFO L85 PathProgramCache]: Analyzing trace with hash 1735348411, now seen corresponding path program 1 times [2025-03-16 18:30:44,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:30:44,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628177231] [2025-03-16 18:30:44,448 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:44,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:30:44,471 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 455 statements into 1 equivalence classes. [2025-03-16 18:30:44,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 455 of 455 statements. [2025-03-16 18:30:44,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:44,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:44,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 36 proven. 99 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2025-03-16 18:30:44,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:30:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628177231] [2025-03-16 18:30:44,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628177231] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:30:44,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062831583] [2025-03-16 18:30:44,780 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:30:44,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:30:44,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:30:44,781 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) [2025-03-16 18:30:44,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-16 18:30:44,930 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 455 statements into 1 equivalence classes. [2025-03-16 18:30:45,124 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 455 of 455 statements. [2025-03-16 18:30:45,124 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:30:45,124 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:30:45,132 INFO L256 TraceCheckSpWp]: Trace formula consists of 3160 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-16 18:30:45,138 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:30:45,330 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 341 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2025-03-16 18:30:45,330 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-16 18:30:46,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1064 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 914 trivial. 0 not checked. [2025-03-16 18:30:46,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062831583] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-16 18:30:46,064 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-16 18:30:46,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2025-03-16 18:30:46,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727594650] [2025-03-16 18:30:46,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-16 18:30:46,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-16 18:30:46,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:30:46,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-16 18:30:46,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2025-03-16 18:30:46,066 INFO L87 Difference]: Start difference. First operand 3067 states and 5140 transitions. Second operand has 27 states, 25 states have (on average 14.24) internal successors, (356), 23 states have internal predecessors, (356), 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) [2025-03-16 18:31:19,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:31:19,820 INFO L93 Difference]: Finished difference Result 46209 states and 82623 transitions. [2025-03-16 18:31:19,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2025-03-16 18:31:19,821 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.24) internal successors, (356), 23 states have internal predecessors, (356), 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 455 [2025-03-16 18:31:19,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:31:20,134 INFO L225 Difference]: With dead ends: 46209 [2025-03-16 18:31:20,135 INFO L226 Difference]: Without dead ends: 43078 [2025-03-16 18:31:20,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1470 GetRequests, 1021 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93148 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2025-03-16 18:31:20,214 INFO L435 NwaCegarLoop]: 2367 mSDtfsCounter, 43553 mSDsluCounter, 21725 mSDsCounter, 0 mSdLazyCounter, 68721 mSolverCounterSat, 16362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43567 SdHoareTripleChecker+Valid, 24092 SdHoareTripleChecker+Invalid, 85083 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 16362 IncrementalHoareTripleChecker+Valid, 68721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24.3s IncrementalHoareTripleChecker+Time [2025-03-16 18:31:20,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [43567 Valid, 24092 Invalid, 85083 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [16362 Valid, 68721 Invalid, 0 Unknown, 0 Unchecked, 24.3s Time] [2025-03-16 18:31:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43078 states. [2025-03-16 18:31:21,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43078 to 35316. [2025-03-16 18:31:21,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35316 states, 29116 states have (on average 1.6799010853139167) internal successors, (48912), 29981 states have internal predecessors, (48912), 4054 states have call successors, (4054), 1795 states have call predecessors, (4054), 2145 states have return successors, (6439), 4115 states have call predecessors, (6439), 4036 states have call successors, (6439) [2025-03-16 18:31:21,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35316 states to 35316 states and 59405 transitions. [2025-03-16 18:31:21,805 INFO L78 Accepts]: Start accepts. Automaton has 35316 states and 59405 transitions. Word has length 455 [2025-03-16 18:31:21,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:31:21,806 INFO L471 AbstractCegarLoop]: Abstraction has 35316 states and 59405 transitions. [2025-03-16 18:31:21,806 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.24) internal successors, (356), 23 states have internal predecessors, (356), 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) [2025-03-16 18:31:21,806 INFO L276 IsEmpty]: Start isEmpty. Operand 35316 states and 59405 transitions. [2025-03-16 18:31:21,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2025-03-16 18:31:21,970 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:31:21,971 INFO L218 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-16 18:31:21,982 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-16 18:31:22,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:31:22,173 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:31:22,174 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:31:22,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1182594098, now seen corresponding path program 1 times [2025-03-16 18:31:22,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:31:22,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742279] [2025-03-16 18:31:22,174 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:31:22,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:31:22,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 502 statements into 1 equivalence classes. [2025-03-16 18:31:22,323 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 502 of 502 statements. [2025-03-16 18:31:22,323 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:31:22,323 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:31:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 61 proven. 68 refuted. 0 times theorem prover too weak. 1121 trivial. 0 not checked. [2025-03-16 18:31:23,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:31:23,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742279] [2025-03-16 18:31:23,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742279] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:31:23,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460410598] [2025-03-16 18:31:23,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:31:23,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:31:23,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:31:23,092 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:31:23,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-16 18:31:23,295 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 502 statements into 1 equivalence classes. [2025-03-16 18:31:23,563 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 502 of 502 statements. [2025-03-16 18:31:23,564 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:31:23,564 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:31:23,574 INFO L256 TraceCheckSpWp]: Trace formula consists of 3306 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-16 18:31:23,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:31:23,665 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 661 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2025-03-16 18:31:23,667 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-16 18:31:23,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460410598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-16 18:31:23,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-16 18:31:23,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2025-03-16 18:31:23,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927626091] [2025-03-16 18:31:23,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-16 18:31:23,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-16 18:31:23,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:31:23,669 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-16 18:31:23,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:31:23,671 INFO L87 Difference]: Start difference. First operand 35316 states and 59405 transitions. Second operand has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 5 states have internal predecessors, (226), 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) [2025-03-16 18:31:25,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:31:25,138 INFO L93 Difference]: Finished difference Result 71017 states and 120108 transitions. [2025-03-16 18:31:25,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-16 18:31:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 5 states have internal predecessors, (226), 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 502 [2025-03-16 18:31:25,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:31:25,287 INFO L225 Difference]: With dead ends: 71017 [2025-03-16 18:31:25,287 INFO L226 Difference]: Without dead ends: 35766 [2025-03-16 18:31:25,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 503 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-03-16 18:31:25,414 INFO L435 NwaCegarLoop]: 777 mSDtfsCounter, 0 mSDsluCounter, 3099 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3876 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-16 18:31:25,418 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3876 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-16 18:31:25,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35766 states. [2025-03-16 18:31:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35766 to 35640. [2025-03-16 18:31:26,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35640 states, 29350 states have (on average 1.6744804088586032) internal successors, (49146), 30257 states have internal predecessors, (49146), 4054 states have call successors, (4054), 1795 states have call predecessors, (4054), 2235 states have return successors, (6616), 4163 states have call predecessors, (6616), 4036 states have call successors, (6616) [2025-03-16 18:31:26,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35640 states to 35640 states and 59816 transitions. [2025-03-16 18:31:26,719 INFO L78 Accepts]: Start accepts. Automaton has 35640 states and 59816 transitions. Word has length 502 [2025-03-16 18:31:26,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-16 18:31:26,720 INFO L471 AbstractCegarLoop]: Abstraction has 35640 states and 59816 transitions. [2025-03-16 18:31:26,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.666666666666664) internal successors, (226), 5 states have internal predecessors, (226), 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) [2025-03-16 18:31:26,720 INFO L276 IsEmpty]: Start isEmpty. Operand 35640 states and 59816 transitions. [2025-03-16 18:31:26,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-03-16 18:31:26,822 INFO L210 NwaCegarLoop]: Found error trace [2025-03-16 18:31:26,823 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 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, 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] [2025-03-16 18:31:26,834 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-16 18:31:27,024 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:31:27,024 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-16 18:31:27,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-16 18:31:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 2078875633, now seen corresponding path program 1 times [2025-03-16 18:31:27,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-16 18:31:27,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668712550] [2025-03-16 18:31:27,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:31:27,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-16 18:31:27,049 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-16 18:31:27,057 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-16 18:31:27,057 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:31:27,057 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:31:27,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 90 proven. 95 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2025-03-16 18:31:27,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-16 18:31:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668712550] [2025-03-16 18:31:27,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668712550] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-16 18:31:27,418 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643633989] [2025-03-16 18:31:27,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-16 18:31:27,419 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-16 18:31:27,419 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-16 18:31:27,420 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-16 18:31:27,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-16 18:31:27,626 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-16 18:31:27,883 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-16 18:31:27,884 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-16 18:31:27,884 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-16 18:31:27,895 INFO L256 TraceCheckSpWp]: Trace formula consists of 3426 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-16 18:31:27,905 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-16 18:31:28,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 1064 proven. 26 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2025-03-16 18:31:28,336 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-16 18:31:29,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1662 backedges. 118 proven. 101 refuted. 0 times theorem prover too weak. 1443 trivial. 0 not checked. [2025-03-16 18:31:29,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643633989] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-16 18:31:29,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-16 18:31:29,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2025-03-16 18:31:29,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676301300] [2025-03-16 18:31:29,018 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-16 18:31:29,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-16 18:31:29,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-16 18:31:29,020 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-16 18:31:29,021 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2025-03-16 18:31:29,021 INFO L87 Difference]: Start difference. First operand 35640 states and 59816 transitions. Second operand has 24 states, 21 states have (on average 23.476190476190474) internal successors, (493), 22 states have internal predecessors, (493), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) [2025-03-16 18:31:41,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-16 18:31:41,435 INFO L93 Difference]: Finished difference Result 138082 states and 245620 transitions. [2025-03-16 18:31:41,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2025-03-16 18:31:41,436 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 23.476190476190474) internal successors, (493), 22 states have internal predecessors, (493), 17 states have call successors, (123), 8 states have call predecessors, (123), 15 states have return successors, (122), 16 states have call predecessors, (122), 17 states have call successors, (122) Word has length 545 [2025-03-16 18:31:41,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-16 18:31:42,033 INFO L225 Difference]: With dead ends: 138082 [2025-03-16 18:31:42,033 INFO L226 Difference]: Without dead ends: 102451 [2025-03-16 18:31:42,586 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1189 GetRequests, 1100 SyntacticMatches, 4 SemanticMatches, 85 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2272 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1262, Invalid=6220, Unknown=0, NotChecked=0, Total=7482 [2025-03-16 18:31:42,586 INFO L435 NwaCegarLoop]: 626 mSDtfsCounter, 12674 mSDsluCounter, 6115 mSDsCounter, 0 mSdLazyCounter, 17815 mSolverCounterSat, 4491 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12674 SdHoareTripleChecker+Valid, 6741 SdHoareTripleChecker+Invalid, 22306 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4491 IncrementalHoareTripleChecker+Valid, 17815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2025-03-16 18:31:42,587 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [12674 Valid, 6741 Invalid, 22306 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4491 Valid, 17815 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2025-03-16 18:31:42,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102451 states.