./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product19.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 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 05:22:08,415 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 05:22:08,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 05:22:08,479 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 05:22:08,479 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 05:22:08,499 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 05:22:08,500 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 05:22:08,500 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 05:22:08,501 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 05:22:08,501 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 05:22:08,502 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 05:22:08,502 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 05:22:08,502 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 05:22:08,502 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 05:22:08,503 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 05:22:08,503 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 05:22:08,504 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 05:22:08,504 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:08,505 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 05:22:08,505 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 05:22:08,506 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 05:22:08,506 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 -> 5643166a994eeb2bd259cf18f0a4b43a93b8e6b433c116ad537f0a1a02a75ec3 [2025-03-08 05:22:08,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 05:22:08,734 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 05:22:08,736 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 05:22:08,736 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 05:22:08,737 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 05:22:08,737 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2025-03-08 05:22:09,854 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb1e4746/f64e278bbf664b519fa74916d8700f24/FLAG80708f5cd [2025-03-08 05:22:10,179 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 05:22:10,180 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product19.cil.c [2025-03-08 05:22:10,202 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb1e4746/f64e278bbf664b519fa74916d8700f24/FLAG80708f5cd [2025-03-08 05:22:10,422 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beb1e4746/f64e278bbf664b519fa74916d8700f24 [2025-03-08 05:22:10,424 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 05:22:10,425 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 05:22:10,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:10,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 05:22:10,428 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 05:22:10,429 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,431 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 08.03 05:22:10, skipping insertion in model container [2025-03-08 05:22:10,431 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,478 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 05:22:10,769 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_product19.cil.c[49225,49238] [2025-03-08 05:22:10,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:10,815 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 05:22:10,821 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [48] [2025-03-08 05:22:10,822 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [1591] [2025-03-08 05:22:10,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [1685] [2025-03-08 05:22:10,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [1722] [2025-03-08 05:22:10,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [1740] [2025-03-08 05:22:10,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [2106] [2025-03-08 05:22:10,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [2144] [2025-03-08 05:22:10,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [2262] [2025-03-08 05:22:10,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [2271] [2025-03-08 05:22:10,824 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2619] [2025-03-08 05:22:10,881 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_product19.cil.c[49225,49238] [2025-03-08 05:22:10,890 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 05:22:10,913 INFO L204 MainTranslator]: Completed translation [2025-03-08 05:22:10,913 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10 WrapperNode [2025-03-08 05:22:10,914 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 05:22:10,915 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:10,915 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 05:22:10,915 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 05:22:10,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,933 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,972 INFO L138 Inliner]: procedures = 91, calls = 333, calls flagged for inlining = 26, calls inlined = 23, statements flattened = 1047 [2025-03-08 05:22:10,973 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 05:22:10,973 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 05:22:10,973 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 05:22:10,973 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 05:22:10,979 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,979 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:10,988 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,017 INFO L175 MemorySlicer]: Split 81 memory accesses to 20 slices as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. 9 percent of accesses are in the largest equivalence class. The 81 initializations are split as follows [2, 4, 4, 5, 3, 3, 5, 7, 4, 4, 4, 4, 4, 6, 4, 4, 4, 4, 4, 2]. The 0 writes are split as follows [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]. [2025-03-08 05:22:11,017 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,018 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,039 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,047 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,049 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 05:22:11,061 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 05:22:11,062 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 05:22:11,062 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 05:22:11,063 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (1/1) ... [2025-03-08 05:22:11,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 05:22:11,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:11,089 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 05:22:11,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 05:22:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 05:22:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-08 05:22:11,110 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-08 05:22:11,110 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-08 05:22:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-08 05:22:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__weight [2025-03-08 05:22:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__weight [2025-03-08 05:22:11,111 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-08 05:22:11,111 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-08 05:22:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-08 05:22:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-08 05:22:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-08 05:22:11,112 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-08 05:22:11,112 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-08 05:22:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-08 05:22:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-08 05:22:11,113 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-08 05:22:11,113 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-08 05:22:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-08 05:22:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-08 05:22:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-08 05:22:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-08 05:22:11,114 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-08 05:22:11,114 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-08 05:22:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-08 05:22:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-08 05:22:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-08 05:22:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-08 05:22:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-08 05:22:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-08 05:22:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-08 05:22:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-08 05:22:11,115 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-08 05:22:11,115 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-08 05:22:11,116 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-08 05:22:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-08 05:22:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-08 05:22:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 05:22:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 05:22:11,117 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-08 05:22:11,117 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-08 05:22:11,276 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 05:22:11,278 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 05:22:11,328 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2259: #res := ~retValue_acc~24; [2025-03-08 05:22:11,349 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2181: #res := ~retValue_acc~22; [2025-03-08 05:22:11,352 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L141: #res := ~retValue_acc~0; [2025-03-08 05:22:11,362 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L294: #res := ~retValue_acc~1; [2025-03-08 05:22:11,410 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L950: #res#1 := ~retValue_acc~11#1; [2025-03-08 05:22:11,411 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L337-1: buttonForFloorIsPressed_#res#1 := buttonForFloorIsPressed_~retValue_acc~3#1; [2025-03-08 05:22:11,442 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1579: #res := ~retValue_acc~15; [2025-03-08 05:22:11,722 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L831-1: stopRequestedInDirection__wrappee__weight_#res#1 := stopRequestedInDirection__wrappee__weight_~retValue_acc~8#1; [2025-03-08 05:22:11,723 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L860: #res#1 := ~retValue_acc~9#1; [2025-03-08 05:22:11,783 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L995: #res := ~retValue_acc~13; [2025-03-08 05:22:11,793 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2220: #res := ~retValue_acc~23; [2025-03-08 05:22:11,879 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L466-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~6#1; [2025-03-08 05:22:11,879 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L479-1: isIdle_#res#1 := isIdle_~retValue_acc~7#1; [2025-03-08 05:22:11,982 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1588-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~16#1; [2025-03-08 05:22:11,982 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L303-1: areDoorsOpen_#res#1 := areDoorsOpen_~retValue_acc~2#1; [2025-03-08 05:22:11,982 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L981-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~12#1; [2025-03-08 05:22:12,031 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2966: #res := ~retValue_acc~28; [2025-03-08 05:22:12,083 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2141-1: valid_product_#res#1 := valid_product_~retValue_acc~21#1; [2025-03-08 05:22:12,083 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2616-1: main_#res#1 := main_~retValue_acc~26#1; [2025-03-08 05:22:12,090 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2730: #res := ~retValue_acc~27; [2025-03-08 05:22:12,092 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3277: #res := ~retValue_acc~29; [2025-03-08 05:22:12,206 INFO L? ?]: Removed 440 outVars from TransFormulas that were not future-live. [2025-03-08 05:22:12,207 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 05:22:12,229 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 05:22:12,229 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 05:22:12,229 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:12 BoogieIcfgContainer [2025-03-08 05:22:12,229 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 05:22:12,231 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 05:22:12,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 05:22:12,234 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 05:22:12,234 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 05:22:10" (1/3) ... [2025-03-08 05:22:12,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0e413b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:12, skipping insertion in model container [2025-03-08 05:22:12,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 05:22:10" (2/3) ... [2025-03-08 05:22:12,235 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d0e413b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 05:22:12, skipping insertion in model container [2025-03-08 05:22:12,235 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 05:22:12" (3/3) ... [2025-03-08 05:22:12,236 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product19.cil.c [2025-03-08 05:22:12,245 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 05:22:12,248 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product19.cil.c that has 24 procedures, 530 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-08 05:22:12,302 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 05:22:12,309 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;@76cee387, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 05:22:12,309 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-08 05:22:12,313 INFO L276 IsEmpty]: Start isEmpty. Operand has 530 states, 412 states have (on average 1.6771844660194175) internal successors, (691), 428 states have internal predecessors, (691), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) [2025-03-08 05:22:12,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2025-03-08 05:22:12,331 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:12,331 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] [2025-03-08 05:22:12,331 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:12,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:12,337 INFO L85 PathProgramCache]: Analyzing trace with hash 1785354907, now seen corresponding path program 1 times [2025-03-08 05:22:12,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:12,343 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323866880] [2025-03-08 05:22:12,343 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:12,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:12,419 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 101 statements into 1 equivalence classes. [2025-03-08 05:22:12,490 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 101 of 101 statements. [2025-03-08 05:22:12,490 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:12,490 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:12,790 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:12,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:12,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323866880] [2025-03-08 05:22:12,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323866880] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:12,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:12,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:12,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873836642] [2025-03-08 05:22:12,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:12,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:12,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:12,811 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:12,812 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:12,815 INFO L87 Difference]: Start difference. First operand has 530 states, 412 states have (on average 1.6771844660194175) internal successors, (691), 428 states have internal predecessors, (691), 93 states have call successors, (93), 23 states have call predecessors, (93), 23 states have return successors, (93), 91 states have call predecessors, (93), 93 states have call successors, (93) 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) [2025-03-08 05:22:12,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:12,956 INFO L93 Difference]: Finished difference Result 1053 states and 1754 transitions. [2025-03-08 05:22:12,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:12,959 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 [2025-03-08 05:22:12,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:12,971 INFO L225 Difference]: With dead ends: 1053 [2025-03-08 05:22:12,973 INFO L226 Difference]: Without dead ends: 525 [2025-03-08 05:22:12,981 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:22:12,982 INFO L435 NwaCegarLoop]: 861 mSDtfsCounter, 6 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2577 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:12,983 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2577 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:12,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-03-08 05:22:13,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2025-03-08 05:22:13,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6691176470588236) internal successors, (681), 423 states have internal predecessors, (681), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:13,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 866 transitions. [2025-03-08 05:22:13,051 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 866 transitions. Word has length 101 [2025-03-08 05:22:13,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:13,051 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 866 transitions. [2025-03-08 05:22:13,052 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) [2025-03-08 05:22:13,052 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 866 transitions. [2025-03-08 05:22:13,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2025-03-08 05:22:13,060 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:13,060 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] [2025-03-08 05:22:13,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 05:22:13,061 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:13,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:13,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1517928166, now seen corresponding path program 1 times [2025-03-08 05:22:13,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:13,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458504620] [2025-03-08 05:22:13,061 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:13,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:13,086 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 102 statements into 1 equivalence classes. [2025-03-08 05:22:13,100 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 102 of 102 statements. [2025-03-08 05:22:13,105 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:13,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:13,259 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:13,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:13,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458504620] [2025-03-08 05:22:13,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458504620] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:13,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:13,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:13,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914797069] [2025-03-08 05:22:13,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:13,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:13,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:13,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:13,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,263 INFO L87 Difference]: Start difference. First operand 525 states and 866 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) [2025-03-08 05:22:13,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:13,333 INFO L93 Difference]: Finished difference Result 1033 states and 1709 transitions. [2025-03-08 05:22:13,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:13,334 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 [2025-03-08 05:22:13,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:13,340 INFO L225 Difference]: With dead ends: 1033 [2025-03-08 05:22:13,340 INFO L226 Difference]: Without dead ends: 525 [2025-03-08 05:22:13,342 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,344 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 4 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:13,344 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2549 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:13,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-03-08 05:22:13,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2025-03-08 05:22:13,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6666666666666667) internal successors, (680), 423 states have internal predecessors, (680), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:13,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 865 transitions. [2025-03-08 05:22:13,377 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 865 transitions. Word has length 102 [2025-03-08 05:22:13,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:13,378 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 865 transitions. [2025-03-08 05:22:13,378 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) [2025-03-08 05:22:13,378 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 865 transitions. [2025-03-08 05:22:13,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2025-03-08 05:22:13,382 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:13,382 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] [2025-03-08 05:22:13,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 05:22:13,383 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:13,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:13,384 INFO L85 PathProgramCache]: Analyzing trace with hash 2038625304, now seen corresponding path program 1 times [2025-03-08 05:22:13,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:13,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739048144] [2025-03-08 05:22:13,384 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:13,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:13,406 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 103 statements into 1 equivalence classes. [2025-03-08 05:22:13,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 103 of 103 statements. [2025-03-08 05:22:13,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:13,418 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:13,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:13,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:13,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739048144] [2025-03-08 05:22:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1739048144] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:13,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:13,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:13,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104400485] [2025-03-08 05:22:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:13,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:13,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:13,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:13,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,545 INFO L87 Difference]: Start difference. First operand 525 states and 865 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (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) [2025-03-08 05:22:13,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:13,602 INFO L93 Difference]: Finished difference Result 1033 states and 1708 transitions. [2025-03-08 05:22:13,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:13,602 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (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 103 [2025-03-08 05:22:13,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:13,606 INFO L225 Difference]: With dead ends: 1033 [2025-03-08 05:22:13,606 INFO L226 Difference]: Without dead ends: 525 [2025-03-08 05:22:13,609 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,611 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 3 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:13,611 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2549 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:13,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-03-08 05:22:13,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2025-03-08 05:22:13,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6642156862745099) internal successors, (679), 423 states have internal predecessors, (679), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:13,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 864 transitions. [2025-03-08 05:22:13,635 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 864 transitions. Word has length 103 [2025-03-08 05:22:13,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:13,636 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 864 transitions. [2025-03-08 05:22:13,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 2 states have call successors, (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) [2025-03-08 05:22:13,636 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 864 transitions. [2025-03-08 05:22:13,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2025-03-08 05:22:13,640 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:13,640 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] [2025-03-08 05:22:13,640 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 05:22:13,640 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:13,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:13,641 INFO L85 PathProgramCache]: Analyzing trace with hash -793220489, now seen corresponding path program 1 times [2025-03-08 05:22:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:13,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974026340] [2025-03-08 05:22:13,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:13,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:13,660 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 104 statements into 1 equivalence classes. [2025-03-08 05:22:13,668 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 104 of 104 statements. [2025-03-08 05:22:13,668 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:13,668 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:13,768 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:13,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974026340] [2025-03-08 05:22:13,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974026340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:13,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:13,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:13,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714631966] [2025-03-08 05:22:13,769 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:13,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:13,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:13,769 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:13,769 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,769 INFO L87 Difference]: Start difference. First operand 525 states and 864 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2025-03-08 05:22:13,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:13,819 INFO L93 Difference]: Finished difference Result 1033 states and 1707 transitions. [2025-03-08 05:22:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:13,820 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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 104 [2025-03-08 05:22:13,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:13,824 INFO L225 Difference]: With dead ends: 1033 [2025-03-08 05:22:13,825 INFO L226 Difference]: Without dead ends: 525 [2025-03-08 05:22:13,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,829 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 2 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:13,830 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2549 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:13,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-03-08 05:22:13,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2025-03-08 05:22:13,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.661764705882353) internal successors, (678), 423 states have internal predecessors, (678), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:13,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 863 transitions. [2025-03-08 05:22:13,855 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 863 transitions. Word has length 104 [2025-03-08 05:22:13,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:13,856 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 863 transitions. [2025-03-08 05:22:13,856 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (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) [2025-03-08 05:22:13,857 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 863 transitions. [2025-03-08 05:22:13,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2025-03-08 05:22:13,860 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:13,860 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] [2025-03-08 05:22:13,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 05:22:13,860 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:13,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:13,861 INFO L85 PathProgramCache]: Analyzing trace with hash 198019477, now seen corresponding path program 1 times [2025-03-08 05:22:13,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:13,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680754355] [2025-03-08 05:22:13,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:13,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:13,880 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 105 statements into 1 equivalence classes. [2025-03-08 05:22:13,893 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 105 of 105 statements. [2025-03-08 05:22:13,893 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:13,893 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:13,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:13,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680754355] [2025-03-08 05:22:13,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680754355] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:13,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:13,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:13,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079983491] [2025-03-08 05:22:13,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:13,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:13,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:13,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:13,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:13,975 INFO L87 Difference]: Start difference. First operand 525 states and 863 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-03-08 05:22:14,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,010 INFO L93 Difference]: Finished difference Result 1033 states and 1706 transitions. [2025-03-08 05:22:14,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 05:22:14,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 105 [2025-03-08 05:22:14,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,013 INFO L225 Difference]: With dead ends: 1033 [2025-03-08 05:22:14,014 INFO L226 Difference]: Without dead ends: 525 [2025-03-08 05:22:14,016 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:14,017 INFO L435 NwaCegarLoop]: 852 mSDtfsCounter, 1 mSDsluCounter, 1697 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2549 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,017 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2549 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:14,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 525 states. [2025-03-08 05:22:14,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 525 to 525. [2025-03-08 05:22:14,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 525 states, 408 states have (on average 1.6593137254901962) internal successors, (677), 423 states have internal predecessors, (677), 93 states have call successors, (93), 24 states have call predecessors, (93), 23 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:14,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 525 states to 525 states and 862 transitions. [2025-03-08 05:22:14,039 INFO L78 Accepts]: Start accepts. Automaton has 525 states and 862 transitions. Word has length 105 [2025-03-08 05:22:14,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,039 INFO L471 AbstractCegarLoop]: Abstraction has 525 states and 862 transitions. [2025-03-08 05:22:14,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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) [2025-03-08 05:22:14,040 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states and 862 transitions. [2025-03-08 05:22:14,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 05:22:14,042 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,042 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] [2025-03-08 05:22:14,042 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 05:22:14,042 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,042 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,043 INFO L85 PathProgramCache]: Analyzing trace with hash -554166316, now seen corresponding path program 1 times [2025-03-08 05:22:14,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48144192] [2025-03-08 05:22:14,043 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,063 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 05:22:14,070 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 05:22:14,070 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,070 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:14,244 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:14,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:14,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48144192] [2025-03-08 05:22:14,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48144192] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:14,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:14,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2025-03-08 05:22:14,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282545715] [2025-03-08 05:22:14,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:14,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:22:14,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:14,248 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:22:14,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:14,249 INFO L87 Difference]: Start difference. First operand 525 states and 862 transitions. Second operand has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2025-03-08 05:22:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,361 INFO L93 Difference]: Finished difference Result 1044 states and 1723 transitions. [2025-03-08 05:22:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 05:22:14,361 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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 106 [2025-03-08 05:22:14,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,365 INFO L225 Difference]: With dead ends: 1044 [2025-03-08 05:22:14,367 INFO L226 Difference]: Without dead ends: 540 [2025-03-08 05:22:14,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:14,389 INFO L435 NwaCegarLoop]: 847 mSDtfsCounter, 91 mSDsluCounter, 5842 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 6689 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 6689 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:14,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 540 states. [2025-03-08 05:22:14,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 540 to 538. [2025-03-08 05:22:14,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 538 states, 418 states have (on average 1.6555023923444976) internal successors, (692), 435 states have internal predecessors, (692), 94 states have call successors, (94), 24 states have call predecessors, (94), 25 states have return successors, (96), 91 states have call predecessors, (96), 93 states have call successors, (96) [2025-03-08 05:22:14,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 882 transitions. [2025-03-08 05:22:14,411 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 882 transitions. Word has length 106 [2025-03-08 05:22:14,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,411 INFO L471 AbstractCegarLoop]: Abstraction has 538 states and 882 transitions. [2025-03-08 05:22:14,411 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 8.125) internal successors, (65), 8 states have internal predecessors, (65), 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) [2025-03-08 05:22:14,413 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 882 transitions. [2025-03-08 05:22:14,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2025-03-08 05:22:14,415 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,415 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] [2025-03-08 05:22:14,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 05:22:14,416 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,416 INFO L85 PathProgramCache]: Analyzing trace with hash 384365299, now seen corresponding path program 1 times [2025-03-08 05:22:14,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957688157] [2025-03-08 05:22:14,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 106 statements into 1 equivalence classes. [2025-03-08 05:22:14,437 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 106 of 106 statements. [2025-03-08 05:22:14,437 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,437 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:14,489 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:14,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:14,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957688157] [2025-03-08 05:22:14,490 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957688157] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:14,490 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:14,490 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-08 05:22:14,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730865336] [2025-03-08 05:22:14,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:14,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:14,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:14,491 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:14,491 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-08 05:22:14,492 INFO L87 Difference]: Start difference. First operand 538 states and 882 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2025-03-08 05:22:14,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,539 INFO L93 Difference]: Finished difference Result 1051 states and 1734 transitions. [2025-03-08 05:22:14,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:14,539 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 106 [2025-03-08 05:22:14,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,543 INFO L225 Difference]: With dead ends: 1051 [2025-03-08 05:22:14,543 INFO L226 Difference]: Without dead ends: 534 [2025-03-08 05:22:14,545 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-08 05:22:14,546 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 1 mSDsluCounter, 1694 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2544 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,546 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2544 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:14,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2025-03-08 05:22:14,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 534. [2025-03-08 05:22:14,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 534 states, 416 states have (on average 1.65625) internal successors, (689), 432 states have internal predecessors, (689), 93 states have call successors, (93), 24 states have call predecessors, (93), 24 states have return successors, (93), 90 states have call predecessors, (93), 92 states have call successors, (93) [2025-03-08 05:22:14,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 534 states to 534 states and 875 transitions. [2025-03-08 05:22:14,564 INFO L78 Accepts]: Start accepts. Automaton has 534 states and 875 transitions. Word has length 106 [2025-03-08 05:22:14,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,564 INFO L471 AbstractCegarLoop]: Abstraction has 534 states and 875 transitions. [2025-03-08 05:22:14,564 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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) [2025-03-08 05:22:14,564 INFO L276 IsEmpty]: Start isEmpty. Operand 534 states and 875 transitions. [2025-03-08 05:22:14,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2025-03-08 05:22:14,567 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,567 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] [2025-03-08 05:22:14,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 05:22:14,567 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1169954320, now seen corresponding path program 1 times [2025-03-08 05:22:14,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822286441] [2025-03-08 05:22:14,568 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 107 statements into 1 equivalence classes. [2025-03-08 05:22:14,589 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 107 of 107 statements. [2025-03-08 05:22:14,589 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,589 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:14,685 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:14,686 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:14,686 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822286441] [2025-03-08 05:22:14,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822286441] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:14,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:14,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:14,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1391732088] [2025-03-08 05:22:14,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:14,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:14,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:14,687 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:14,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:14,687 INFO L87 Difference]: Start difference. First operand 534 states and 875 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) [2025-03-08 05:22:14,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:14,892 INFO L93 Difference]: Finished difference Result 1094 states and 1806 transitions. [2025-03-08 05:22:14,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:14,892 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 [2025-03-08 05:22:14,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:14,896 INFO L225 Difference]: With dead ends: 1094 [2025-03-08 05:22:14,896 INFO L226 Difference]: Without dead ends: 566 [2025-03-08 05:22:14,898 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:14,898 INFO L435 NwaCegarLoop]: 824 mSDtfsCounter, 72 mSDsluCounter, 3217 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4041 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:14,899 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4041 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 05:22:14,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-08 05:22:14,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 539. [2025-03-08 05:22:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 421 states have (on average 1.6413301662707838) internal successors, (691), 436 states have internal predecessors, (691), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:14,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 876 transitions. [2025-03-08 05:22:14,919 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 876 transitions. Word has length 107 [2025-03-08 05:22:14,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:14,919 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 876 transitions. [2025-03-08 05:22:14,919 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) [2025-03-08 05:22:14,919 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 876 transitions. [2025-03-08 05:22:14,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2025-03-08 05:22:14,921 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:14,921 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] [2025-03-08 05:22:14,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 05:22:14,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:14,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:14,922 INFO L85 PathProgramCache]: Analyzing trace with hash -1071349461, now seen corresponding path program 1 times [2025-03-08 05:22:14,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:14,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011004303] [2025-03-08 05:22:14,922 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:14,922 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:14,935 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 108 statements into 1 equivalence classes. [2025-03-08 05:22:14,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 108 of 108 statements. [2025-03-08 05:22:14,942 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:14,942 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,046 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:15,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011004303] [2025-03-08 05:22:15,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011004303] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:15,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595394028] [2025-03-08 05:22:15,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:15,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:15,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:15,048 INFO L87 Difference]: Start difference. First operand 539 states and 876 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (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) [2025-03-08 05:22:15,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,217 INFO L93 Difference]: Finished difference Result 1045 states and 1701 transitions. [2025-03-08 05:22:15,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:15,217 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (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 108 [2025-03-08 05:22:15,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,221 INFO L225 Difference]: With dead ends: 1045 [2025-03-08 05:22:15,221 INFO L226 Difference]: Without dead ends: 557 [2025-03-08 05:22:15,224 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:15,224 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 56 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,224 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4018 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:15,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-03-08 05:22:15,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 539. [2025-03-08 05:22:15,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 421 states have (on average 1.631828978622328) internal successors, (687), 436 states have internal predecessors, (687), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 872 transitions. [2025-03-08 05:22:15,243 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 872 transitions. Word has length 108 [2025-03-08 05:22:15,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,243 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 872 transitions. [2025-03-08 05:22:15,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 2 states have call successors, (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) [2025-03-08 05:22:15,244 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 872 transitions. [2025-03-08 05:22:15,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 05:22:15,246 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,246 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] [2025-03-08 05:22:15,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 05:22:15,246 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,247 INFO L85 PathProgramCache]: Analyzing trace with hash -1915490733, now seen corresponding path program 1 times [2025-03-08 05:22:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375358674] [2025-03-08 05:22:15,247 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 05:22:15,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 05:22:15,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,368 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:15,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375358674] [2025-03-08 05:22:15,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375358674] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,369 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:15,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514750417] [2025-03-08 05:22:15,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,370 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:15,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,370 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:15,370 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:15,371 INFO L87 Difference]: Start difference. First operand 539 states and 872 transitions. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (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) [2025-03-08 05:22:15,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,517 INFO L93 Difference]: Finished difference Result 1045 states and 1697 transitions. [2025-03-08 05:22:15,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:15,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (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 109 [2025-03-08 05:22:15,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,520 INFO L225 Difference]: With dead ends: 1045 [2025-03-08 05:22:15,521 INFO L226 Difference]: Without dead ends: 557 [2025-03-08 05:22:15,524 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:15,524 INFO L435 NwaCegarLoop]: 812 mSDtfsCounter, 55 mSDsluCounter, 3201 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4013 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4013 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:15,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 557 states. [2025-03-08 05:22:15,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 557 to 539. [2025-03-08 05:22:15,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 539 states, 421 states have (on average 1.6223277909738718) internal successors, (683), 436 states have internal predecessors, (683), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:15,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 539 states to 539 states and 868 transitions. [2025-03-08 05:22:15,540 INFO L78 Accepts]: Start accepts. Automaton has 539 states and 868 transitions. Word has length 109 [2025-03-08 05:22:15,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,541 INFO L471 AbstractCegarLoop]: Abstraction has 539 states and 868 transitions. [2025-03-08 05:22:15,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 2 states have call successors, (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) [2025-03-08 05:22:15,541 INFO L276 IsEmpty]: Start isEmpty. Operand 539 states and 868 transitions. [2025-03-08 05:22:15,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2025-03-08 05:22:15,543 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,543 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] [2025-03-08 05:22:15,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 05:22:15,543 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1206009794, now seen corresponding path program 1 times [2025-03-08 05:22:15,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899831403] [2025-03-08 05:22:15,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,558 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 109 statements into 1 equivalence classes. [2025-03-08 05:22:15,562 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 109 of 109 statements. [2025-03-08 05:22:15,563 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,664 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:15,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899831403] [2025-03-08 05:22:15,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899831403] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-08 05:22:15,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9948541] [2025-03-08 05:22:15,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,665 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-08 05:22:15,665 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,665 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-08 05:22:15,666 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:15,666 INFO L87 Difference]: Start difference. First operand 539 states and 868 transitions. Second operand has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-03-08 05:22:15,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,726 INFO L93 Difference]: Finished difference Result 1036 states and 1679 transitions. [2025-03-08 05:22:15,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-08 05:22:15,728 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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 109 [2025-03-08 05:22:15,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,731 INFO L225 Difference]: With dead ends: 1036 [2025-03-08 05:22:15,731 INFO L226 Difference]: Without dead ends: 527 [2025-03-08 05:22:15,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:15,734 INFO L435 NwaCegarLoop]: 838 mSDtfsCounter, 94 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 4932 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 4932 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:15,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2025-03-08 05:22:15,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 518. [2025-03-08 05:22:15,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.615) internal successors, (646), 415 states have internal predecessors, (646), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:15,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 831 transitions. [2025-03-08 05:22:15,749 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 831 transitions. Word has length 109 [2025-03-08 05:22:15,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,750 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 831 transitions. [2025-03-08 05:22:15,750 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 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) [2025-03-08 05:22:15,750 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 831 transitions. [2025-03-08 05:22:15,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2025-03-08 05:22:15,752 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,752 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, 1] [2025-03-08 05:22:15,752 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 05:22:15,753 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,753 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,753 INFO L85 PathProgramCache]: Analyzing trace with hash -1919990994, now seen corresponding path program 1 times [2025-03-08 05:22:15,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996081254] [2025-03-08 05:22:15,753 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,767 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 110 statements into 1 equivalence classes. [2025-03-08 05:22:15,774 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 110 of 110 statements. [2025-03-08 05:22:15,774 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,774 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:15,849 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996081254] [2025-03-08 05:22:15,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1996081254] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:15,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:15,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:15,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258092433] [2025-03-08 05:22:15,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:15,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:15,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:15,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:15,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:15,852 INFO L87 Difference]: Start difference. First operand 518 states and 831 transitions. Second operand has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2025-03-08 05:22:15,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:15,937 INFO L93 Difference]: Finished difference Result 1015 states and 1642 transitions. [2025-03-08 05:22:15,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:15,938 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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 110 [2025-03-08 05:22:15,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:15,941 INFO L225 Difference]: With dead ends: 1015 [2025-03-08 05:22:15,941 INFO L226 Difference]: Without dead ends: 527 [2025-03-08 05:22:15,943 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 [2025-03-08 05:22:15,944 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 39 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:15,944 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4018 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2025-03-08 05:22:15,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 518. [2025-03-08 05:22:15,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.6125) internal successors, (645), 415 states have internal predecessors, (645), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:15,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 830 transitions. [2025-03-08 05:22:15,959 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 830 transitions. Word has length 110 [2025-03-08 05:22:15,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:15,960 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 830 transitions. [2025-03-08 05:22:15,960 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.5) internal successors, (69), 6 states have internal predecessors, (69), 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) [2025-03-08 05:22:15,960 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 830 transitions. [2025-03-08 05:22:15,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2025-03-08 05:22:15,962 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:15,962 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, 1, 1] [2025-03-08 05:22:15,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 05:22:15,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:15,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:15,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1665423690, now seen corresponding path program 1 times [2025-03-08 05:22:15,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:15,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283444109] [2025-03-08 05:22:15,963 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:15,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:15,976 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 111 statements into 1 equivalence classes. [2025-03-08 05:22:15,992 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 111 of 111 statements. [2025-03-08 05:22:15,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:15,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,064 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:16,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283444109] [2025-03-08 05:22:16,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283444109] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 05:22:16,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670177534] [2025-03-08 05:22:16,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:16,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,066 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:16,066 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 05:22:16,066 INFO L87 Difference]: Start difference. First operand 518 states and 830 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-03-08 05:22:16,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,141 INFO L93 Difference]: Finished difference Result 1015 states and 1641 transitions. [2025-03-08 05:22:16,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:16,142 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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 111 [2025-03-08 05:22:16,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,145 INFO L225 Difference]: With dead ends: 1015 [2025-03-08 05:22:16,145 INFO L226 Difference]: Without dead ends: 527 [2025-03-08 05:22:16,147 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:16,148 INFO L435 NwaCegarLoop]: 813 mSDtfsCounter, 38 mSDsluCounter, 3205 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4018 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,148 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4018 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:16,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 527 states. [2025-03-08 05:22:16,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 527 to 518. [2025-03-08 05:22:16,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 518 states, 400 states have (on average 1.61) internal successors, (644), 415 states have internal predecessors, (644), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:16,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 518 states to 518 states and 829 transitions. [2025-03-08 05:22:16,163 INFO L78 Accepts]: Start accepts. Automaton has 518 states and 829 transitions. Word has length 111 [2025-03-08 05:22:16,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,163 INFO L471 AbstractCegarLoop]: Abstraction has 518 states and 829 transitions. [2025-03-08 05:22:16,163 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 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) [2025-03-08 05:22:16,163 INFO L276 IsEmpty]: Start isEmpty. Operand 518 states and 829 transitions. [2025-03-08 05:22:16,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2025-03-08 05:22:16,165 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,165 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, 1, 1, 1] [2025-03-08 05:22:16,166 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 05:22:16,166 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:16,166 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:16,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1969696463, now seen corresponding path program 1 times [2025-03-08 05:22:16,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:16,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255893856] [2025-03-08 05:22:16,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:16,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 112 statements into 1 equivalence classes. [2025-03-08 05:22:16,183 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 112 of 112 statements. [2025-03-08 05:22:16,183 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,183 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,348 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-08 05:22:16,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255893856] [2025-03-08 05:22:16,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255893856] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:16,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2025-03-08 05:22:16,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994978415] [2025-03-08 05:22:16,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2025-03-08 05:22:16,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,349 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2025-03-08 05:22:16,349 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:16,349 INFO L87 Difference]: Start difference. First operand 518 states and 829 transitions. Second operand has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 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) [2025-03-08 05:22:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,474 INFO L93 Difference]: Finished difference Result 1005 states and 1623 transitions. [2025-03-08 05:22:16,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 05:22:16,475 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 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 112 [2025-03-08 05:22:16,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,478 INFO L225 Difference]: With dead ends: 1005 [2025-03-08 05:22:16,478 INFO L226 Difference]: Without dead ends: 523 [2025-03-08 05:22:16,480 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:16,480 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 21 mSDsluCounter, 6249 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 7034 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,480 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 7034 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:16,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 523 states. [2025-03-08 05:22:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 523 to 520. [2025-03-08 05:22:16,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 520 states, 402 states have (on average 1.6044776119402986) internal successors, (645), 417 states have internal predecessors, (645), 93 states have call successors, (93), 25 states have call predecessors, (93), 24 states have return successors, (92), 90 states have call predecessors, (92), 92 states have call successors, (92) [2025-03-08 05:22:16,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 520 states to 520 states and 830 transitions. [2025-03-08 05:22:16,494 INFO L78 Accepts]: Start accepts. Automaton has 520 states and 830 transitions. Word has length 112 [2025-03-08 05:22:16,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,494 INFO L471 AbstractCegarLoop]: Abstraction has 520 states and 830 transitions. [2025-03-08 05:22:16,494 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.888888888888889) internal successors, (71), 9 states have internal predecessors, (71), 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) [2025-03-08 05:22:16,495 INFO L276 IsEmpty]: Start isEmpty. Operand 520 states and 830 transitions. [2025-03-08 05:22:16,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 05:22:16,496 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,496 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, 1, 1, 1, 1] [2025-03-08 05:22:16,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 05:22:16,497 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:16,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:16,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1802860361, now seen corresponding path program 1 times [2025-03-08 05:22:16,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:16,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954856031] [2025-03-08 05:22:16,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:16,509 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 05:22:16,514 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 05:22:16,514 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,514 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:22:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954856031] [2025-03-08 05:22:16,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954856031] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:16,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625719072] [2025-03-08 05:22:16,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:16,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:16,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:16,580 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:16,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-08 05:22:16,695 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 05:22:16,807 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 05:22:16,807 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:16,807 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:16,812 INFO L256 TraceCheckSpWp]: Trace formula consists of 1215 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:16,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:16,834 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-03-08 05:22:16,834 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:16,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625719072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:16,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:16,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2025-03-08 05:22:16,835 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803634363] [2025-03-08 05:22:16,835 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:16,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:16,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:16,835 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:16,835 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:16,836 INFO L87 Difference]: Start difference. First operand 520 states and 830 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-08 05:22:16,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:16,910 INFO L93 Difference]: Finished difference Result 1469 states and 2411 transitions. [2025-03-08 05:22:16,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:16,910 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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 113 [2025-03-08 05:22:16,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:16,915 INFO L225 Difference]: With dead ends: 1469 [2025-03-08 05:22:16,915 INFO L226 Difference]: Without dead ends: 992 [2025-03-08 05:22:16,917 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-08 05:22:16,918 INFO L435 NwaCegarLoop]: 855 mSDtfsCounter, 805 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 805 SdHoareTripleChecker+Valid, 1622 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:16,918 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [805 Valid, 1622 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:16,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 992 states. [2025-03-08 05:22:16,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 992 to 985. [2025-03-08 05:22:16,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 985 states, 761 states have (on average 1.6254927726675428) internal successors, (1237), 789 states have internal predecessors, (1237), 178 states have call successors, (178), 46 states have call predecessors, (178), 45 states have return successors, (188), 175 states have call predecessors, (188), 176 states have call successors, (188) [2025-03-08 05:22:16,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 985 states to 985 states and 1603 transitions. [2025-03-08 05:22:16,956 INFO L78 Accepts]: Start accepts. Automaton has 985 states and 1603 transitions. Word has length 113 [2025-03-08 05:22:16,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:16,956 INFO L471 AbstractCegarLoop]: Abstraction has 985 states and 1603 transitions. [2025-03-08 05:22:16,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 3 states have internal predecessors, (80), 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) [2025-03-08 05:22:16,956 INFO L276 IsEmpty]: Start isEmpty. Operand 985 states and 1603 transitions. [2025-03-08 05:22:16,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2025-03-08 05:22:16,958 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:16,959 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, 1, 1, 1, 1] [2025-03-08 05:22:16,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:17,163 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 [2025-03-08 05:22:17,163 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:17,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:17,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1771840554, now seen corresponding path program 1 times [2025-03-08 05:22:17,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:17,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334324077] [2025-03-08 05:22:17,164 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:17,182 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 05:22:17,189 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 05:22:17,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,269 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:22:17,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:17,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334324077] [2025-03-08 05:22:17,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334324077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:17,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1156315840] [2025-03-08 05:22:17,270 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:17,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:17,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:17,271 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:17,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-08 05:22:17,386 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 113 statements into 1 equivalence classes. [2025-03-08 05:22:17,491 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 113 of 113 statements. [2025-03-08 05:22:17,492 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:17,492 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:17,495 INFO L256 TraceCheckSpWp]: Trace formula consists of 1216 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:17,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:17,603 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-03-08 05:22:17,603 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:17,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1156315840] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:17,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:17,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:17,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844758480] [2025-03-08 05:22:17,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:17,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:17,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:17,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:17,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:17,605 INFO L87 Difference]: Start difference. First operand 985 states and 1603 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) [2025-03-08 05:22:18,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:18,056 INFO L93 Difference]: Finished difference Result 1943 states and 3235 transitions. [2025-03-08 05:22:18,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:18,057 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 113 [2025-03-08 05:22:18,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:18,061 INFO L225 Difference]: With dead ends: 1943 [2025-03-08 05:22:18,061 INFO L226 Difference]: Without dead ends: 1001 [2025-03-08 05:22:18,066 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:18,066 INFO L435 NwaCegarLoop]: 791 mSDtfsCounter, 775 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 429 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 779 SdHoareTripleChecker+Valid, 2009 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 429 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:18,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [779 Valid, 2009 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 429 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:18,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1001 states. [2025-03-08 05:22:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1001 to 1001. [2025-03-08 05:22:18,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1001 states, 775 states have (on average 1.6270967741935485) internal successors, (1261), 803 states have internal predecessors, (1261), 178 states have call successors, (178), 48 states have call predecessors, (178), 47 states have return successors, (190), 175 states have call predecessors, (190), 176 states have call successors, (190) [2025-03-08 05:22:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1629 transitions. [2025-03-08 05:22:18,098 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1629 transitions. Word has length 113 [2025-03-08 05:22:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:18,098 INFO L471 AbstractCegarLoop]: Abstraction has 1001 states and 1629 transitions. [2025-03-08 05:22:18,098 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) [2025-03-08 05:22:18,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1629 transitions. [2025-03-08 05:22:18,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2025-03-08 05:22:18,100 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:18,100 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, 1, 1, 1, 1] [2025-03-08 05:22:18,108 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-08 05:22:18,304 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 [2025-03-08 05:22:18,304 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:18,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:18,304 INFO L85 PathProgramCache]: Analyzing trace with hash -973774606, now seen corresponding path program 1 times [2025-03-08 05:22:18,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:18,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671637552] [2025-03-08 05:22:18,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:18,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:18,317 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 05:22:18,322 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 05:22:18,322 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:18,322 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 05:22:18,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:18,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671637552] [2025-03-08 05:22:18,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671637552] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:18,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1280565190] [2025-03-08 05:22:18,379 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:18,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:18,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:18,381 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:18,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-08 05:22:18,497 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 116 statements into 1 equivalence classes. [2025-03-08 05:22:18,595 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 116 of 116 statements. [2025-03-08 05:22:18,595 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:18,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:18,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 1219 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:18,602 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:18,680 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2025-03-08 05:22:18,680 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:18,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1280565190] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:18,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:18,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:18,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861471221] [2025-03-08 05:22:18,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:18,681 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:18,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:18,682 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:18,682 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:18,682 INFO L87 Difference]: Start difference. First operand 1001 states and 1629 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) [2025-03-08 05:22:19,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:19,093 INFO L93 Difference]: Finished difference Result 1975 states and 3281 transitions. [2025-03-08 05:22:19,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:19,093 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 116 [2025-03-08 05:22:19,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:19,098 INFO L225 Difference]: With dead ends: 1975 [2025-03-08 05:22:19,098 INFO L226 Difference]: Without dead ends: 1017 [2025-03-08 05:22:19,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:19,103 INFO L435 NwaCegarLoop]: 788 mSDtfsCounter, 769 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 428 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 2006 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 428 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:19,104 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [776 Valid, 2006 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 428 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:19,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1017 states. [2025-03-08 05:22:19,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1017 to 1017. [2025-03-08 05:22:19,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1017 states, 789 states have (on average 1.6286438529784537) internal successors, (1285), 817 states have internal predecessors, (1285), 178 states have call successors, (178), 50 states have call predecessors, (178), 49 states have return successors, (192), 175 states have call predecessors, (192), 176 states have call successors, (192) [2025-03-08 05:22:19,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1017 states to 1017 states and 1655 transitions. [2025-03-08 05:22:19,133 INFO L78 Accepts]: Start accepts. Automaton has 1017 states and 1655 transitions. Word has length 116 [2025-03-08 05:22:19,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:19,133 INFO L471 AbstractCegarLoop]: Abstraction has 1017 states and 1655 transitions. [2025-03-08 05:22:19,133 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) [2025-03-08 05:22:19,133 INFO L276 IsEmpty]: Start isEmpty. Operand 1017 states and 1655 transitions. [2025-03-08 05:22:19,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2025-03-08 05:22:19,135 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:19,135 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, 1, 1, 1, 1] [2025-03-08 05:22:19,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:19,335 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 [2025-03-08 05:22:19,336 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:19,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:19,336 INFO L85 PathProgramCache]: Analyzing trace with hash 931731111, now seen corresponding path program 1 times [2025-03-08 05:22:19,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:19,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733309424] [2025-03-08 05:22:19,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:19,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:19,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-08 05:22:19,352 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 05:22:19,352 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:19,352 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:19,408 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 05:22:19,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733309424] [2025-03-08 05:22:19,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [733309424] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:19,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2065911968] [2025-03-08 05:22:19,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:19,409 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:19,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:19,411 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:19,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-08 05:22:19,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 119 statements into 1 equivalence classes. [2025-03-08 05:22:19,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 119 of 119 statements. [2025-03-08 05:22:19,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:19,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:19,609 INFO L256 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:19,612 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:19,687 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-03-08 05:22:19,687 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:19,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2065911968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:19,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:19,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:19,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562081122] [2025-03-08 05:22:19,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:19,687 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:19,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:19,688 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:19,688 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:19,689 INFO L87 Difference]: Start difference. First operand 1017 states and 1655 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (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) [2025-03-08 05:22:20,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:20,094 INFO L93 Difference]: Finished difference Result 2007 states and 3327 transitions. [2025-03-08 05:22:20,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:20,094 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (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 119 [2025-03-08 05:22:20,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:20,101 INFO L225 Difference]: With dead ends: 2007 [2025-03-08 05:22:20,101 INFO L226 Difference]: Without dead ends: 1033 [2025-03-08 05:22:20,106 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:20,106 INFO L435 NwaCegarLoop]: 785 mSDtfsCounter, 750 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 427 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 760 SdHoareTripleChecker+Valid, 2003 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 427 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:20,106 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [760 Valid, 2003 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 427 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:20,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1033 states. [2025-03-08 05:22:20,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1033 to 1033. [2025-03-08 05:22:20,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1033 states, 803 states have (on average 1.63013698630137) internal successors, (1309), 831 states have internal predecessors, (1309), 178 states have call successors, (178), 52 states have call predecessors, (178), 51 states have return successors, (194), 175 states have call predecessors, (194), 176 states have call successors, (194) [2025-03-08 05:22:20,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1033 states to 1033 states and 1681 transitions. [2025-03-08 05:22:20,141 INFO L78 Accepts]: Start accepts. Automaton has 1033 states and 1681 transitions. Word has length 119 [2025-03-08 05:22:20,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:20,143 INFO L471 AbstractCegarLoop]: Abstraction has 1033 states and 1681 transitions. [2025-03-08 05:22:20,144 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (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) [2025-03-08 05:22:20,144 INFO L276 IsEmpty]: Start isEmpty. Operand 1033 states and 1681 transitions. [2025-03-08 05:22:20,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2025-03-08 05:22:20,146 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:20,146 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, 1, 1, 1, 1] [2025-03-08 05:22:20,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:20,346 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 [2025-03-08 05:22:20,347 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:20,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:20,348 INFO L85 PathProgramCache]: Analyzing trace with hash 1211149161, now seen corresponding path program 1 times [2025-03-08 05:22:20,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:20,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920033032] [2025-03-08 05:22:20,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:20,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-08 05:22:20,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-08 05:22:20,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:20,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:20,424 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:20,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920033032] [2025-03-08 05:22:20,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920033032] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:20,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1255976772] [2025-03-08 05:22:20,425 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:20,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:20,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:20,427 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:20,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-08 05:22:20,532 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 122 statements into 1 equivalence classes. [2025-03-08 05:22:20,624 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 122 of 122 statements. [2025-03-08 05:22:20,624 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:20,624 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:20,628 INFO L256 TraceCheckSpWp]: Trace formula consists of 1225 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-08 05:22:20,630 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:20,719 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2025-03-08 05:22:20,721 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:20,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1255976772] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:20,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:20,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-08 05:22:20,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [420814567] [2025-03-08 05:22:20,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:20,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:20,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:20,724 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:20,724 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-08 05:22:20,724 INFO L87 Difference]: Start difference. First operand 1033 states and 1681 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, (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) [2025-03-08 05:22:21,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:21,137 INFO L93 Difference]: Finished difference Result 2039 states and 3373 transitions. [2025-03-08 05:22:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:21,138 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, (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 122 [2025-03-08 05:22:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:21,145 INFO L225 Difference]: With dead ends: 2039 [2025-03-08 05:22:21,145 INFO L226 Difference]: Without dead ends: 1049 [2025-03-08 05:22:21,151 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:21,151 INFO L435 NwaCegarLoop]: 782 mSDtfsCounter, 742 mSDsluCounter, 1218 mSDsCounter, 0 mSdLazyCounter, 426 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 755 SdHoareTripleChecker+Valid, 2000 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:21,151 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [755 Valid, 2000 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 426 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:21,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1049 states. [2025-03-08 05:22:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1049 to 1049. [2025-03-08 05:22:21,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1049 states, 817 states have (on average 1.631578947368421) internal successors, (1333), 845 states have internal predecessors, (1333), 178 states have call successors, (178), 54 states have call predecessors, (178), 53 states have return successors, (196), 175 states have call predecessors, (196), 176 states have call successors, (196) [2025-03-08 05:22:21,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1049 states to 1049 states and 1707 transitions. [2025-03-08 05:22:21,195 INFO L78 Accepts]: Start accepts. Automaton has 1049 states and 1707 transitions. Word has length 122 [2025-03-08 05:22:21,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:21,196 INFO L471 AbstractCegarLoop]: Abstraction has 1049 states and 1707 transitions. [2025-03-08 05:22:21,196 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, (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) [2025-03-08 05:22:21,196 INFO L276 IsEmpty]: Start isEmpty. Operand 1049 states and 1707 transitions. [2025-03-08 05:22:21,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2025-03-08 05:22:21,199 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:21,199 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, 1, 1, 1, 1] [2025-03-08 05:22:21,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-08 05:22:21,399 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 [2025-03-08 05:22:21,400 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:21,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:21,400 INFO L85 PathProgramCache]: Analyzing trace with hash -2028394844, now seen corresponding path program 1 times [2025-03-08 05:22:21,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:21,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171626291] [2025-03-08 05:22:21,400 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:21,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:21,413 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-08 05:22:21,421 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-08 05:22:21,421 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:21,421 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:21,561 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2025-03-08 05:22:21,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:21,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171626291] [2025-03-08 05:22:21,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [171626291] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:21,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539393334] [2025-03-08 05:22:21,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:21,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:21,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:21,564 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:21,566 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-08 05:22:21,669 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 125 statements into 1 equivalence classes. [2025-03-08 05:22:21,760 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 125 of 125 statements. [2025-03-08 05:22:21,760 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:21,760 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:21,767 INFO L256 TraceCheckSpWp]: Trace formula consists of 1228 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-08 05:22:21,771 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:21,927 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2025-03-08 05:22:21,928 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:21,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539393334] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:21,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:21,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 13 [2025-03-08 05:22:21,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547720934] [2025-03-08 05:22:21,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:21,928 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:22:21,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:21,928 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:22:21,929 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:21,929 INFO L87 Difference]: Start difference. First operand 1049 states and 1707 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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) [2025-03-08 05:22:22,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:22,365 INFO L93 Difference]: Finished difference Result 2065 states and 3389 transitions. [2025-03-08 05:22:22,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:22:22,366 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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 125 [2025-03-08 05:22:22,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:22,373 INFO L225 Difference]: With dead ends: 2065 [2025-03-08 05:22:22,373 INFO L226 Difference]: Without dead ends: 1059 [2025-03-08 05:22:22,378 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:22:22,378 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 722 mSDsluCounter, 2755 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 728 SdHoareTripleChecker+Valid, 3599 SdHoareTripleChecker+Invalid, 632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:22,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [728 Valid, 3599 Invalid, 632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-08 05:22:22,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2025-03-08 05:22:22,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 1052. [2025-03-08 05:22:22,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1052 states, 819 states have (on average 1.63003663003663) internal successors, (1335), 848 states have internal predecessors, (1335), 178 states have call successors, (178), 54 states have call predecessors, (178), 54 states have return successors, (197), 175 states have call predecessors, (197), 176 states have call successors, (197) [2025-03-08 05:22:22,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1052 states to 1052 states and 1710 transitions. [2025-03-08 05:22:22,413 INFO L78 Accepts]: Start accepts. Automaton has 1052 states and 1710 transitions. Word has length 125 [2025-03-08 05:22:22,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:22,414 INFO L471 AbstractCegarLoop]: Abstraction has 1052 states and 1710 transitions. [2025-03-08 05:22:22,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 5 states have internal predecessors, (88), 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) [2025-03-08 05:22:22,414 INFO L276 IsEmpty]: Start isEmpty. Operand 1052 states and 1710 transitions. [2025-03-08 05:22:22,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2025-03-08 05:22:22,416 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:22,416 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:22,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:22,616 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 [2025-03-08 05:22:22,617 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:22,617 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:22,617 INFO L85 PathProgramCache]: Analyzing trace with hash -1837508386, now seen corresponding path program 1 times [2025-03-08 05:22:22,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:22,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2017892187] [2025-03-08 05:22:22,617 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:22,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:22,628 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:22,635 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:22,635 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:22,635 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:22,806 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:22,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2017892187] [2025-03-08 05:22:22,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2017892187] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:22,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514884612] [2025-03-08 05:22:22,807 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:22,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:22,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:22,809 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:22,811 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-08 05:22:22,931 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 127 statements into 1 equivalence classes. [2025-03-08 05:22:23,019 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 127 of 127 statements. [2025-03-08 05:22:23,019 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:23,019 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:23,026 INFO L256 TraceCheckSpWp]: Trace formula consists of 1224 conjuncts, 13 conjuncts are in the unsatisfiable core [2025-03-08 05:22:23,030 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:23,133 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:23,133 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:23,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514884612] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:23,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:23,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-08 05:22:23,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579326614] [2025-03-08 05:22:23,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:23,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:23,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:23,134 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:23,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:23,135 INFO L87 Difference]: Start difference. First operand 1052 states and 1710 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:22:23,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:23,442 INFO L93 Difference]: Finished difference Result 2079 states and 3427 transitions. [2025-03-08 05:22:23,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2025-03-08 05:22:23,442 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) Word has length 127 [2025-03-08 05:22:23,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:23,448 INFO L225 Difference]: With dead ends: 2079 [2025-03-08 05:22:23,448 INFO L226 Difference]: Without dead ends: 1070 [2025-03-08 05:22:23,454 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-08 05:22:23,455 INFO L435 NwaCegarLoop]: 840 mSDtfsCounter, 738 mSDsluCounter, 2245 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 738 SdHoareTripleChecker+Valid, 3085 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:23,455 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [738 Valid, 3085 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-08 05:22:23,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1070 states. [2025-03-08 05:22:23,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1070 to 1062. [2025-03-08 05:22:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 825 states have (on average 1.6254545454545455) internal successors, (1341), 857 states have internal predecessors, (1341), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2025-03-08 05:22:23,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1728 transitions. [2025-03-08 05:22:23,492 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1728 transitions. Word has length 127 [2025-03-08 05:22:23,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:23,492 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1728 transitions. [2025-03-08 05:22:23,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 4 states have internal predecessors, (86), 2 states have call successors, (14), 3 states have call predecessors, (14), 3 states have return successors, (13), 2 states have call predecessors, (13), 2 states have call successors, (13) [2025-03-08 05:22:23,492 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1728 transitions. [2025-03-08 05:22:23,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 05:22:23,495 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:23,495 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:23,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:23,695 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 [2025-03-08 05:22:23,696 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:23,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:23,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1517847976, now seen corresponding path program 1 times [2025-03-08 05:22:23,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:23,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489608120] [2025-03-08 05:22:23,697 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:23,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:23,708 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:23,718 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:23,718 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:23,718 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:23,889 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:23,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489608120] [2025-03-08 05:22:23,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489608120] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:23,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763780782] [2025-03-08 05:22:23,890 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:23,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:23,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:23,892 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:23,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-08 05:22:23,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:24,087 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:24,087 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:24,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:24,091 INFO L256 TraceCheckSpWp]: Trace formula consists of 1241 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-08 05:22:24,093 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:24,106 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:24,106 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:24,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763780782] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:24,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:24,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [9] total 10 [2025-03-08 05:22:24,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765874167] [2025-03-08 05:22:24,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:24,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:24,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:24,108 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:24,108 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:24,108 INFO L87 Difference]: Start difference. First operand 1062 states and 1728 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:24,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:24,166 INFO L93 Difference]: Finished difference Result 2581 states and 4269 transitions. [2025-03-08 05:22:24,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:24,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-08 05:22:24,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:24,176 INFO L225 Difference]: With dead ends: 2581 [2025-03-08 05:22:24,176 INFO L226 Difference]: Without dead ends: 1563 [2025-03-08 05:22:24,180 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:24,181 INFO L435 NwaCegarLoop]: 1559 mSDtfsCounter, 768 mSDsluCounter, 803 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:24,181 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [768 Valid, 2362 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:24,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2025-03-08 05:22:24,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1062. [2025-03-08 05:22:24,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1062 states, 825 states have (on average 1.6242424242424243) internal successors, (1340), 857 states have internal predecessors, (1340), 180 states have call successors, (180), 55 states have call predecessors, (180), 56 states have return successors, (207), 175 states have call predecessors, (207), 178 states have call successors, (207) [2025-03-08 05:22:24,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1062 states to 1062 states and 1727 transitions. [2025-03-08 05:22:24,222 INFO L78 Accepts]: Start accepts. Automaton has 1062 states and 1727 transitions. Word has length 132 [2025-03-08 05:22:24,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:24,222 INFO L471 AbstractCegarLoop]: Abstraction has 1062 states and 1727 transitions. [2025-03-08 05:22:24,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 3 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:24,223 INFO L276 IsEmpty]: Start isEmpty. Operand 1062 states and 1727 transitions. [2025-03-08 05:22:24,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 05:22:24,226 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:24,226 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:24,233 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-03-08 05:22:24,426 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 [2025-03-08 05:22:24,427 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:24,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:24,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1167048039, now seen corresponding path program 1 times [2025-03-08 05:22:24,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:24,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684095096] [2025-03-08 05:22:24,428 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:24,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:24,438 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:24,445 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:24,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:24,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:24,588 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:24,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:24,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684095096] [2025-03-08 05:22:24,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684095096] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:24,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1351511642] [2025-03-08 05:22:24,589 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:24,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:24,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:24,590 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:24,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-08 05:22:24,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:24,796 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:24,796 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:24,796 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:24,799 INFO L256 TraceCheckSpWp]: Trace formula consists of 1240 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-03-08 05:22:24,802 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:24,888 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:24,889 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:24,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1351511642] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:24,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:24,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [9] total 12 [2025-03-08 05:22:24,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266661912] [2025-03-08 05:22:24,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:24,890 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 05:22:24,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:24,891 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 05:22:24,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:24,892 INFO L87 Difference]: Start difference. First operand 1062 states and 1727 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:24,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:24,974 INFO L93 Difference]: Finished difference Result 2650 states and 4338 transitions. [2025-03-08 05:22:24,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:24,974 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-08 05:22:24,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:24,983 INFO L225 Difference]: With dead ends: 2650 [2025-03-08 05:22:24,983 INFO L226 Difference]: Without dead ends: 1633 [2025-03-08 05:22:24,986 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:22:24,986 INFO L435 NwaCegarLoop]: 885 mSDtfsCounter, 343 mSDsluCounter, 2576 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 343 SdHoareTripleChecker+Valid, 3461 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 [2025-03-08 05:22:24,987 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [343 Valid, 3461 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:24,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2025-03-08 05:22:25,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2025-03-08 05:22:25,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1633 states, 1275 states have (on average 1.6007843137254902) internal successors, (2041), 1312 states have internal predecessors, (2041), 264 states have call successors, (264), 91 states have call predecessors, (264), 93 states have return successors, (343), 255 states have call predecessors, (343), 260 states have call successors, (343) [2025-03-08 05:22:25,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 2648 transitions. [2025-03-08 05:22:25,041 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 2648 transitions. Word has length 132 [2025-03-08 05:22:25,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:25,041 INFO L471 AbstractCegarLoop]: Abstraction has 1633 states and 2648 transitions. [2025-03-08 05:22:25,041 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:25,041 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 2648 transitions. [2025-03-08 05:22:25,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-08 05:22:25,045 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:25,045 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:25,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:25,245 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 [2025-03-08 05:22:25,246 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:25,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:25,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1775124902, now seen corresponding path program 1 times [2025-03-08 05:22:25,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:25,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249188443] [2025-03-08 05:22:25,246 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:25,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:25,256 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:25,262 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:25,262 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:25,262 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:25,402 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:25,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249188443] [2025-03-08 05:22:25,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249188443] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:25,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141667941] [2025-03-08 05:22:25,403 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:25,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:25,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:25,405 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:25,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-08 05:22:25,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-08 05:22:25,598 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-08 05:22:25,598 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:25,598 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:25,601 INFO L256 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:22:25,603 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:25,658 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-08 05:22:25,658 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:25,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141667941] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:25,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:25,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 10 [2025-03-08 05:22:25,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181470738] [2025-03-08 05:22:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:25,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 05:22:25,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:25,659 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 05:22:25,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:25,659 INFO L87 Difference]: Start difference. First operand 1633 states and 2648 transitions. Second operand has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:25,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:25,696 INFO L93 Difference]: Finished difference Result 2971 states and 4811 transitions. [2025-03-08 05:22:25,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 05:22:25,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 132 [2025-03-08 05:22:25,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:25,705 INFO L225 Difference]: With dead ends: 2971 [2025-03-08 05:22:25,705 INFO L226 Difference]: Without dead ends: 1383 [2025-03-08 05:22:25,710 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:25,711 INFO L435 NwaCegarLoop]: 914 mSDtfsCounter, 531 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 531 SdHoareTripleChecker+Valid, 1303 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 [2025-03-08 05:22:25,712 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [531 Valid, 1303 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:22:25,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1383 states. [2025-03-08 05:22:25,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1383 to 1383. [2025-03-08 05:22:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1383 states, 1077 states have (on average 1.5821727019498608) internal successors, (1704), 1105 states have internal predecessors, (1704), 223 states have call successors, (223), 83 states have call predecessors, (223), 82 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:25,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1383 states to 1383 states and 2206 transitions. [2025-03-08 05:22:25,756 INFO L78 Accepts]: Start accepts. Automaton has 1383 states and 2206 transitions. Word has length 132 [2025-03-08 05:22:25,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:25,756 INFO L471 AbstractCegarLoop]: Abstraction has 1383 states and 2206 transitions. [2025-03-08 05:22:25,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.666666666666668) internal successors, (89), 2 states have internal predecessors, (89), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-03-08 05:22:25,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1383 states and 2206 transitions. [2025-03-08 05:22:25,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2025-03-08 05:22:25,760 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:25,760 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:25,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-03-08 05:22:25,960 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 [2025-03-08 05:22:25,961 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:25,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:25,961 INFO L85 PathProgramCache]: Analyzing trace with hash 1296506406, now seen corresponding path program 1 times [2025-03-08 05:22:25,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:25,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552302926] [2025-03-08 05:22:25,961 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:25,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:25,972 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-08 05:22:25,979 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-08 05:22:25,979 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:25,979 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:26,104 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2025-03-08 05:22:26,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:26,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552302926] [2025-03-08 05:22:26,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552302926] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:26,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972708302] [2025-03-08 05:22:26,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:26,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:26,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:26,107 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:26,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-08 05:22:26,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 155 statements into 1 equivalence classes. [2025-03-08 05:22:26,315 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 155 of 155 statements. [2025-03-08 05:22:26,315 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:26,315 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:26,319 INFO L256 TraceCheckSpWp]: Trace formula consists of 1332 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:26,321 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:26,345 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-08 05:22:26,346 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:26,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972708302] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:26,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:26,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:22:26,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134664873] [2025-03-08 05:22:26,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:26,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:26,346 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:26,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:26,347 INFO L87 Difference]: Start difference. First operand 1383 states and 2206 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) [2025-03-08 05:22:26,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:26,505 INFO L93 Difference]: Finished difference Result 2811 states and 4544 transitions. [2025-03-08 05:22:26,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:26,505 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.5) internal successors, (110), 4 states have internal predecessors, (110), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 155 [2025-03-08 05:22:26,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:26,514 INFO L225 Difference]: With dead ends: 2811 [2025-03-08 05:22:26,514 INFO L226 Difference]: Without dead ends: 1473 [2025-03-08 05:22:26,519 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:26,519 INFO L435 NwaCegarLoop]: 749 mSDtfsCounter, 144 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2224 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:26,520 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2224 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:26,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1473 states. [2025-03-08 05:22:26,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1473 to 1461. [2025-03-08 05:22:26,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1153 states have (on average 1.6045099739809194) internal successors, (1850), 1181 states have internal predecessors, (1850), 223 states have call successors, (223), 85 states have call predecessors, (223), 84 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:26,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2352 transitions. [2025-03-08 05:22:26,560 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2352 transitions. Word has length 155 [2025-03-08 05:22:26,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:26,561 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2352 transitions. [2025-03-08 05:22:26,561 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) [2025-03-08 05:22:26,561 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2352 transitions. [2025-03-08 05:22:26,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2025-03-08 05:22:26,564 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:26,565 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:26,574 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-08 05:22:26,765 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 [2025-03-08 05:22:26,765 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:26,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:26,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1681090961, now seen corresponding path program 1 times [2025-03-08 05:22:26,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:26,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128640350] [2025-03-08 05:22:26,766 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:26,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:26,776 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 05:22:26,784 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 05:22:26,785 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:26,785 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:26,907 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-08 05:22:26,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128640350] [2025-03-08 05:22:26,907 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128640350] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:26,907 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643480038] [2025-03-08 05:22:26,908 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:26,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:26,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:26,922 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:26,923 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-08 05:22:27,066 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 160 statements into 1 equivalence classes. [2025-03-08 05:22:27,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 160 of 160 statements. [2025-03-08 05:22:27,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:27,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:27,154 INFO L256 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:27,156 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 76 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-08 05:22:27,177 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:27,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643480038] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:27,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:27,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:22:27,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430726223] [2025-03-08 05:22:27,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:27,178 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:27,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:27,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:27,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:27,179 INFO L87 Difference]: Start difference. First operand 1461 states and 2352 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) [2025-03-08 05:22:27,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:27,316 INFO L93 Difference]: Finished difference Result 2973 states and 4838 transitions. [2025-03-08 05:22:27,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:27,317 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 [2025-03-08 05:22:27,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:27,324 INFO L225 Difference]: With dead ends: 2973 [2025-03-08 05:22:27,324 INFO L226 Difference]: Without dead ends: 1557 [2025-03-08 05:22:27,328 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 [2025-03-08 05:22:27,329 INFO L435 NwaCegarLoop]: 748 mSDtfsCounter, 142 mSDsluCounter, 1473 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2221 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:27,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2221 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:27,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1557 states. [2025-03-08 05:22:27,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1557 to 1539. [2025-03-08 05:22:27,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1539 states, 1229 states have (on average 1.6240846216436127) internal successors, (1996), 1257 states have internal predecessors, (1996), 223 states have call successors, (223), 87 states have call predecessors, (223), 86 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:27,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1539 states to 1539 states and 2498 transitions. [2025-03-08 05:22:27,372 INFO L78 Accepts]: Start accepts. Automaton has 1539 states and 2498 transitions. Word has length 160 [2025-03-08 05:22:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:27,372 INFO L471 AbstractCegarLoop]: Abstraction has 1539 states and 2498 transitions. [2025-03-08 05:22:27,373 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) [2025-03-08 05:22:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 1539 states and 2498 transitions. [2025-03-08 05:22:27,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2025-03-08 05:22:27,376 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:27,376 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:27,383 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:27,577 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 [2025-03-08 05:22:27,578 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:27,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:27,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1152440305, now seen corresponding path program 1 times [2025-03-08 05:22:27,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:27,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945173470] [2025-03-08 05:22:27,578 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:27,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:27,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:22:27,596 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:22:27,596 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:27,596 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:27,719 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2025-03-08 05:22:27,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:27,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945173470] [2025-03-08 05:22:27,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945173470] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:27,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [7752255] [2025-03-08 05:22:27,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:27,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:27,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:27,723 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:27,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-08 05:22:27,853 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 164 statements into 1 equivalence classes. [2025-03-08 05:22:27,935 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 164 of 164 statements. [2025-03-08 05:22:27,935 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:27,935 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:27,938 INFO L256 TraceCheckSpWp]: Trace formula consists of 1341 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:27,941 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:27,968 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-08 05:22:27,968 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:27,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [7752255] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:27,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:27,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:22:27,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [602165968] [2025-03-08 05:22:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:27,969 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:27,969 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:27,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:27,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:27,970 INFO L87 Difference]: Start difference. First operand 1539 states and 2498 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) [2025-03-08 05:22:28,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:28,137 INFO L93 Difference]: Finished difference Result 3135 states and 5132 transitions. [2025-03-08 05:22:28,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:28,138 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 164 [2025-03-08 05:22:28,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:28,148 INFO L225 Difference]: With dead ends: 3135 [2025-03-08 05:22:28,149 INFO L226 Difference]: Without dead ends: 1641 [2025-03-08 05:22:28,155 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:28,155 INFO L435 NwaCegarLoop]: 747 mSDtfsCounter, 140 mSDsluCounter, 1471 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2218 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:28,155 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2218 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:28,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1641 states. [2025-03-08 05:22:28,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1641 to 1617. [2025-03-08 05:22:28,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1617 states, 1305 states have (on average 1.6413793103448275) internal successors, (2142), 1333 states have internal predecessors, (2142), 223 states have call successors, (223), 89 states have call predecessors, (223), 88 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:28,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1617 states to 1617 states and 2644 transitions. [2025-03-08 05:22:28,212 INFO L78 Accepts]: Start accepts. Automaton has 1617 states and 2644 transitions. Word has length 164 [2025-03-08 05:22:28,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:28,212 INFO L471 AbstractCegarLoop]: Abstraction has 1617 states and 2644 transitions. [2025-03-08 05:22:28,212 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) [2025-03-08 05:22:28,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1617 states and 2644 transitions. [2025-03-08 05:22:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2025-03-08 05:22:28,215 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:28,215 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:28,224 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-08 05:22:28,416 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 [2025-03-08 05:22:28,416 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:28,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:28,417 INFO L85 PathProgramCache]: Analyzing trace with hash -1094016188, now seen corresponding path program 1 times [2025-03-08 05:22:28,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:28,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658040243] [2025-03-08 05:22:28,417 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:28,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:28,426 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-03-08 05:22:28,431 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-03-08 05:22:28,431 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:28,431 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:28,549 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-08 05:22:28,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:28,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658040243] [2025-03-08 05:22:28,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658040243] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:28,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175665072] [2025-03-08 05:22:28,550 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:28,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:28,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:28,553 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:28,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-08 05:22:28,671 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 167 statements into 1 equivalence classes. [2025-03-08 05:22:28,754 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 167 of 167 statements. [2025-03-08 05:22:28,754 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:28,754 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:28,757 INFO L256 TraceCheckSpWp]: Trace formula consists of 1344 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:28,760 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:28,782 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 72 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-08 05:22:28,782 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:28,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175665072] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:28,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:28,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:22:28,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124665038] [2025-03-08 05:22:28,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:28,783 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:28,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:28,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:28,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:28,783 INFO L87 Difference]: Start difference. First operand 1617 states and 2644 transitions. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 05:22:28,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:28,940 INFO L93 Difference]: Finished difference Result 3297 states and 5426 transitions. [2025-03-08 05:22:28,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:28,940 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 167 [2025-03-08 05:22:28,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:28,948 INFO L225 Difference]: With dead ends: 3297 [2025-03-08 05:22:28,948 INFO L226 Difference]: Without dead ends: 1725 [2025-03-08 05:22:28,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:28,953 INFO L435 NwaCegarLoop]: 746 mSDtfsCounter, 138 mSDsluCounter, 1469 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:28,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2215 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:28,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1725 states. [2025-03-08 05:22:28,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1725 to 1695. [2025-03-08 05:22:28,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1695 states, 1381 states have (on average 1.6567704561911658) internal successors, (2288), 1409 states have internal predecessors, (2288), 223 states have call successors, (223), 91 states have call predecessors, (223), 90 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:28,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1695 states to 1695 states and 2790 transitions. [2025-03-08 05:22:28,995 INFO L78 Accepts]: Start accepts. Automaton has 1695 states and 2790 transitions. Word has length 167 [2025-03-08 05:22:28,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:28,996 INFO L471 AbstractCegarLoop]: Abstraction has 1695 states and 2790 transitions. [2025-03-08 05:22:28,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-08 05:22:28,997 INFO L276 IsEmpty]: Start isEmpty. Operand 1695 states and 2790 transitions. [2025-03-08 05:22:28,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-08 05:22:28,999 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:29,000 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:29,008 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-08 05:22:29,200 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 [2025-03-08 05:22:29,200 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:29,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:29,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1086074354, now seen corresponding path program 1 times [2025-03-08 05:22:29,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:29,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185365397] [2025-03-08 05:22:29,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:29,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:29,213 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-08 05:22:29,220 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-08 05:22:29,220 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:29,220 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:29,338 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2025-03-08 05:22:29,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185365397] [2025-03-08 05:22:29,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185365397] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:29,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381505245] [2025-03-08 05:22:29,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:29,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:29,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:29,340 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:29,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-08 05:22:29,461 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-08 05:22:29,544 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-08 05:22:29,545 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:29,545 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:29,548 INFO L256 TraceCheckSpWp]: Trace formula consists of 1346 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-08 05:22:29,550 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:29,575 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-08 05:22:29,576 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:29,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381505245] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:29,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:29,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-08 05:22:29,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506338430] [2025-03-08 05:22:29,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:29,577 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-08 05:22:29,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:29,577 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-08 05:22:29,578 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-08 05:22:29,578 INFO L87 Difference]: Start difference. First operand 1695 states and 2790 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) [2025-03-08 05:22:29,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:29,704 INFO L93 Difference]: Finished difference Result 3459 states and 5720 transitions. [2025-03-08 05:22:29,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-08 05:22:29,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.5) internal successors, (118), 4 states have internal predecessors, (118), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) Word has length 169 [2025-03-08 05:22:29,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:29,712 INFO L225 Difference]: With dead ends: 3459 [2025-03-08 05:22:29,712 INFO L226 Difference]: Without dead ends: 1809 [2025-03-08 05:22:29,716 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 183 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2025-03-08 05:22:29,716 INFO L435 NwaCegarLoop]: 744 mSDtfsCounter, 136 mSDsluCounter, 1464 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2208 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:29,717 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2208 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:29,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1809 states. [2025-03-08 05:22:29,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1809 to 1773. [2025-03-08 05:22:29,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1773 states, 1457 states have (on average 1.6705559368565546) internal successors, (2434), 1485 states have internal predecessors, (2434), 223 states have call successors, (223), 93 states have call predecessors, (223), 92 states have return successors, (279), 218 states have call predecessors, (279), 219 states have call successors, (279) [2025-03-08 05:22:29,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2936 transitions. [2025-03-08 05:22:29,780 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2936 transitions. Word has length 169 [2025-03-08 05:22:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:29,780 INFO L471 AbstractCegarLoop]: Abstraction has 1773 states and 2936 transitions. [2025-03-08 05:22:29,780 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) [2025-03-08 05:22:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2936 transitions. [2025-03-08 05:22:29,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-03-08 05:22:29,783 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:29,783 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:29,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:29,983 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 [2025-03-08 05:22:29,984 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:29,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:29,984 INFO L85 PathProgramCache]: Analyzing trace with hash 932631602, now seen corresponding path program 1 times [2025-03-08 05:22:29,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:29,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455554605] [2025-03-08 05:22:29,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:29,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:29,994 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-08 05:22:29,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-08 05:22:29,999 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:29,999 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:30,110 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2025-03-08 05:22:30,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455554605] [2025-03-08 05:22:30,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455554605] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:30,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2122241992] [2025-03-08 05:22:30,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:30,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:30,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:30,112 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:30,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-08 05:22:30,224 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-03-08 05:22:30,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-03-08 05:22:30,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:30,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:30,306 INFO L256 TraceCheckSpWp]: Trace formula consists of 1343 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-03-08 05:22:30,309 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:30,445 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2025-03-08 05:22:30,446 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:22:30,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2122241992] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:30,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:22:30,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [9] total 14 [2025-03-08 05:22:30,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587078249] [2025-03-08 05:22:30,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:30,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-08 05:22:30,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:30,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-08 05:22:30,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2025-03-08 05:22:30,447 INFO L87 Difference]: Start difference. First operand 1773 states and 2936 transitions. Second operand has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-08 05:22:32,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:32,230 INFO L93 Difference]: Finished difference Result 5514 states and 9279 transitions. [2025-03-08 05:22:32,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-08 05:22:32,231 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 169 [2025-03-08 05:22:32,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:32,248 INFO L225 Difference]: With dead ends: 5514 [2025-03-08 05:22:32,248 INFO L226 Difference]: Without dead ends: 3418 [2025-03-08 05:22:32,257 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=384, Unknown=0, NotChecked=0, Total=462 [2025-03-08 05:22:32,257 INFO L435 NwaCegarLoop]: 396 mSDtfsCounter, 1804 mSDsluCounter, 2013 mSDsCounter, 0 mSdLazyCounter, 3784 mSolverCounterSat, 433 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1907 SdHoareTripleChecker+Valid, 2409 SdHoareTripleChecker+Invalid, 4217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 433 IncrementalHoareTripleChecker+Valid, 3784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:32,257 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1907 Valid, 2409 Invalid, 4217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [433 Valid, 3784 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-08 05:22:32,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3418 states. [2025-03-08 05:22:32,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3418 to 3406. [2025-03-08 05:22:32,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3406 states, 2755 states have (on average 1.6729582577132487) internal successors, (4609), 2837 states have internal predecessors, (4609), 463 states have call successors, (463), 167 states have call predecessors, (463), 187 states have return successors, (607), 459 states have call predecessors, (607), 459 states have call successors, (607) [2025-03-08 05:22:32,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3406 states to 3406 states and 5679 transitions. [2025-03-08 05:22:32,341 INFO L78 Accepts]: Start accepts. Automaton has 3406 states and 5679 transitions. Word has length 169 [2025-03-08 05:22:32,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:32,342 INFO L471 AbstractCegarLoop]: Abstraction has 3406 states and 5679 transitions. [2025-03-08 05:22:32,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.222222222222221) internal successors, (110), 7 states have internal predecessors, (110), 3 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2025-03-08 05:22:32,342 INFO L276 IsEmpty]: Start isEmpty. Operand 3406 states and 5679 transitions. [2025-03-08 05:22:32,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2025-03-08 05:22:32,348 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:32,348 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:32,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2025-03-08 05:22:32,549 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 [2025-03-08 05:22:32,549 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:32,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:32,551 INFO L85 PathProgramCache]: Analyzing trace with hash -348790368, now seen corresponding path program 1 times [2025-03-08 05:22:32,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:32,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481549163] [2025-03-08 05:22:32,551 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:32,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:32,563 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 172 statements into 1 equivalence classes. [2025-03-08 05:22:32,566 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 172 of 172 statements. [2025-03-08 05:22:32,567 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:32,567 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:32,678 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2025-03-08 05:22:32,678 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:32,678 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481549163] [2025-03-08 05:22:32,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481549163] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:22:32,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 05:22:32,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-08 05:22:32,679 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223268367] [2025-03-08 05:22:32,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:22:32,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-08 05:22:32,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:32,679 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-08 05:22:32,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-08 05:22:32,680 INFO L87 Difference]: Start difference. First operand 3406 states and 5679 transitions. Second operand has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-08 05:22:32,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:22:32,812 INFO L93 Difference]: Finished difference Result 6638 states and 11098 transitions. [2025-03-08 05:22:32,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-08 05:22:32,813 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 172 [2025-03-08 05:22:32,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:22:32,829 INFO L225 Difference]: With dead ends: 6638 [2025-03-08 05:22:32,829 INFO L226 Difference]: Without dead ends: 3139 [2025-03-08 05:22:32,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-08 05:22:32,840 INFO L435 NwaCegarLoop]: 786 mSDtfsCounter, 30 mSDsluCounter, 4686 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 5472 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-08 05:22:32,840 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 5472 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-08 05:22:32,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3139 states. [2025-03-08 05:22:32,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3139 to 3127. [2025-03-08 05:22:32,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3127 states, 2576 states have (on average 1.6940993788819876) internal successors, (4364), 2645 states have internal predecessors, (4364), 383 states have call successors, (383), 155 states have call predecessors, (383), 167 states have return successors, (477), 374 states have call predecessors, (477), 379 states have call successors, (477) [2025-03-08 05:22:32,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3127 states to 3127 states and 5224 transitions. [2025-03-08 05:22:32,918 INFO L78 Accepts]: Start accepts. Automaton has 3127 states and 5224 transitions. Word has length 172 [2025-03-08 05:22:32,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:22:32,918 INFO L471 AbstractCegarLoop]: Abstraction has 3127 states and 5224 transitions. [2025-03-08 05:22:32,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 15.285714285714286) internal successors, (107), 7 states have internal predecessors, (107), 3 states have call successors, (16), 2 states have call predecessors, (16), 4 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2025-03-08 05:22:32,919 INFO L276 IsEmpty]: Start isEmpty. Operand 3127 states and 5224 transitions. [2025-03-08 05:22:32,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2025-03-08 05:22:32,929 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:22:32,929 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, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 05:22:32,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-08 05:22:32,929 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:22:32,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:22:32,930 INFO L85 PathProgramCache]: Analyzing trace with hash -507760312, now seen corresponding path program 1 times [2025-03-08 05:22:32,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:22:32,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913307047] [2025-03-08 05:22:32,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:32,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:22:32,953 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 460 statements into 1 equivalence classes. [2025-03-08 05:22:32,958 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 460 of 460 statements. [2025-03-08 05:22:32,959 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:32,959 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:33,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 36 proven. 101 refuted. 0 times theorem prover too weak. 929 trivial. 0 not checked. [2025-03-08 05:22:33,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:22:33,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913307047] [2025-03-08 05:22:33,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913307047] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:22:33,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008101640] [2025-03-08 05:22:33,327 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:22:33,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:22:33,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:22:33,329 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:22:33,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-08 05:22:33,512 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 460 statements into 1 equivalence classes. [2025-03-08 05:22:33,724 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 460 of 460 statements. [2025-03-08 05:22:33,724 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:22:33,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:22:33,733 INFO L256 TraceCheckSpWp]: Trace formula consists of 3188 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-03-08 05:22:33,741 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:22:33,951 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 343 proven. 50 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2025-03-08 05:22:33,951 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:22:34,664 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 57 proven. 93 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2025-03-08 05:22:34,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008101640] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:22:34,665 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 05:22:34,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 14] total 27 [2025-03-08 05:22:34,665 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365654481] [2025-03-08 05:22:34,666 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 05:22:34,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2025-03-08 05:22:34,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:22:34,667 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2025-03-08 05:22:34,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702 [2025-03-08 05:22:34,668 INFO L87 Difference]: Start difference. First operand 3127 states and 5224 transitions. Second operand has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 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) [2025-03-08 05:23:07,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:07,923 INFO L93 Difference]: Finished difference Result 46971 states and 83727 transitions. [2025-03-08 05:23:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 430 states. [2025-03-08 05:23:07,924 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 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 460 [2025-03-08 05:23:07,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:08,241 INFO L225 Difference]: With dead ends: 46971 [2025-03-08 05:23:08,243 INFO L226 Difference]: Without dead ends: 43784 [2025-03-08 05:23:08,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1480 GetRequests, 1031 SyntacticMatches, 4 SemanticMatches, 445 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93149 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=16349, Invalid=183013, Unknown=0, NotChecked=0, Total=199362 [2025-03-08 05:23:08,356 INFO L435 NwaCegarLoop]: 2374 mSDtfsCounter, 37037 mSDsluCounter, 20172 mSDsCounter, 0 mSdLazyCounter, 63822 mSolverCounterSat, 13982 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37051 SdHoareTripleChecker+Valid, 22546 SdHoareTripleChecker+Invalid, 77804 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 13982 IncrementalHoareTripleChecker+Valid, 63822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.6s IncrementalHoareTripleChecker+Time [2025-03-08 05:23:08,360 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [37051 Valid, 22546 Invalid, 77804 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [13982 Valid, 63822 Invalid, 0 Unknown, 0 Unchecked, 23.6s Time] [2025-03-08 05:23:08,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43784 states. [2025-03-08 05:23:10,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43784 to 36022. [2025-03-08 05:23:10,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36022 states, 29678 states have (on average 1.676123728014017) internal successors, (49744), 30543 states have internal predecessors, (49744), 4150 states have call successors, (4150), 1843 states have call predecessors, (4150), 2193 states have return successors, (6535), 4211 states have call predecessors, (6535), 4132 states have call successors, (6535) [2025-03-08 05:23:10,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36022 states to 36022 states and 60429 transitions. [2025-03-08 05:23:10,534 INFO L78 Accepts]: Start accepts. Automaton has 36022 states and 60429 transitions. Word has length 460 [2025-03-08 05:23:10,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:10,536 INFO L471 AbstractCegarLoop]: Abstraction has 36022 states and 60429 transitions. [2025-03-08 05:23:10,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 25 states have (on average 14.72) internal successors, (368), 23 states have internal predecessors, (368), 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) [2025-03-08 05:23:10,538 INFO L276 IsEmpty]: Start isEmpty. Operand 36022 states and 60429 transitions. [2025-03-08 05:23:10,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2025-03-08 05:23:10,690 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:10,690 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, 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] [2025-03-08 05:23:10,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:10,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:10,892 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:10,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:10,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1452841710, now seen corresponding path program 1 times [2025-03-08 05:23:10,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:10,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218556137] [2025-03-08 05:23:10,897 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:10,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:10,978 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-08 05:23:11,068 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-08 05:23:11,072 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:11,072 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:12,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 90 proven. 97 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2025-03-08 05:23:12,024 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:12,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218556137] [2025-03-08 05:23:12,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218556137] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:12,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1803574627] [2025-03-08 05:23:12,025 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:12,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:12,027 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:12,030 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:12,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-08 05:23:12,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-08 05:23:12,521 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-08 05:23:12,524 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:12,524 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:12,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 3437 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-08 05:23:12,549 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 856 proven. 0 refuted. 0 times theorem prover too weak. 808 trivial. 0 not checked. [2025-03-08 05:23:12,610 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-08 05:23:12,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1803574627] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 05:23:12,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-08 05:23:12,611 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2025-03-08 05:23:12,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070119228] [2025-03-08 05:23:12,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 05:23:12,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 05:23:12,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:12,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 05:23:12,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:12,613 INFO L87 Difference]: Start difference. First operand 36022 states and 60429 transitions. Second operand has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-08 05:23:14,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 05:23:14,105 INFO L93 Difference]: Finished difference Result 72425 states and 122152 transitions. [2025-03-08 05:23:14,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 05:23:14,106 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 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 547 [2025-03-08 05:23:14,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 05:23:14,381 INFO L225 Difference]: With dead ends: 72425 [2025-03-08 05:23:14,381 INFO L226 Difference]: Without dead ends: 36472 [2025-03-08 05:23:14,538 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 559 GetRequests, 548 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2025-03-08 05:23:14,539 INFO L435 NwaCegarLoop]: 801 mSDtfsCounter, 0 mSDsluCounter, 3195 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3996 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 [2025-03-08 05:23:14,539 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3996 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-08 05:23:14,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36472 states. [2025-03-08 05:23:16,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36472 to 36346. [2025-03-08 05:23:16,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36346 states, 29912 states have (on average 1.6708344477132924) internal successors, (49978), 30819 states have internal predecessors, (49978), 4150 states have call successors, (4150), 1843 states have call predecessors, (4150), 2283 states have return successors, (6712), 4259 states have call predecessors, (6712), 4132 states have call successors, (6712) [2025-03-08 05:23:16,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36346 states to 36346 states and 60840 transitions. [2025-03-08 05:23:16,267 INFO L78 Accepts]: Start accepts. Automaton has 36346 states and 60840 transitions. Word has length 547 [2025-03-08 05:23:16,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 05:23:16,268 INFO L471 AbstractCegarLoop]: Abstraction has 36346 states and 60840 transitions. [2025-03-08 05:23:16,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 37.5) internal successors, (225), 5 states have internal predecessors, (225), 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) [2025-03-08 05:23:16,269 INFO L276 IsEmpty]: Start isEmpty. Operand 36346 states and 60840 transitions. [2025-03-08 05:23:16,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 551 [2025-03-08 05:23:16,373 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 05:23:16,373 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 12, 12, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2025-03-08 05:23:16,384 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2025-03-08 05:23:16,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:16,574 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 05:23:16,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 05:23:16,576 INFO L85 PathProgramCache]: Analyzing trace with hash 766618220, now seen corresponding path program 1 times [2025-03-08 05:23:16,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 05:23:16,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672661955] [2025-03-08 05:23:16,577 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:16,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 05:23:16,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 550 statements into 1 equivalence classes. [2025-03-08 05:23:16,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 550 of 550 statements. [2025-03-08 05:23:16,622 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:16,622 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:16,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 90 proven. 97 refuted. 0 times theorem prover too weak. 1477 trivial. 0 not checked. [2025-03-08 05:23:16,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 05:23:16,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672661955] [2025-03-08 05:23:16,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672661955] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-08 05:23:16,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475894829] [2025-03-08 05:23:16,998 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 05:23:16,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-08 05:23:16,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 05:23:17,000 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-08 05:23:17,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-08 05:23:17,199 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 550 statements into 1 equivalence classes. [2025-03-08 05:23:17,456 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 550 of 550 statements. [2025-03-08 05:23:17,456 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 05:23:17,456 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 05:23:17,467 INFO L256 TraceCheckSpWp]: Trace formula consists of 3455 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-03-08 05:23:17,476 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-08 05:23:17,797 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 1066 proven. 26 refuted. 0 times theorem prover too weak. 572 trivial. 0 not checked. [2025-03-08 05:23:17,797 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-08 05:23:18,513 INFO L134 CoverageAnalysis]: Checked inductivity of 1664 backedges. 118 proven. 101 refuted. 0 times theorem prover too weak. 1445 trivial. 0 not checked. [2025-03-08 05:23:18,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475894829] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-08 05:23:18,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-08 05:23:18,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 24 [2025-03-08 05:23:18,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035689800] [2025-03-08 05:23:18,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-08 05:23:18,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-03-08 05:23:18,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 05:23:18,518 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-03-08 05:23:18,519 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2025-03-08 05:23:18,520 INFO L87 Difference]: Start difference. First operand 36346 states and 60840 transitions. Second operand has 24 states, 21 states have (on average 23.904761904761905) internal successors, (502), 22 states have internal predecessors, (502), 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)