./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/product-lines/elevator_spec14_product24.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 d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-03 14:12:42,512 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-03 14:12:42,564 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-03 14:12:42,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-03 14:12:42,569 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-03 14:12:42,591 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-03 14:12:42,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-03 14:12:42,592 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-03 14:12:42,592 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-03 14:12:42,592 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-03 14:12:42,592 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-03 14:12:42,592 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-03 14:12:42,593 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Use SBE=true [2025-03-03 14:12:42,593 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-03 14:12:42,593 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-03 14:12:42,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:12:42,594 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-03 14:12:42,594 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-03 14:12:42,594 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 -> d9a9e332bba43f0e6d965514fc764881b170e0a0500d860d4fcce12986d98914 [2025-03-03 14:12:42,808 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-03 14:12:42,814 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-03 14:12:42,816 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-03 14:12:42,817 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-03 14:12:42,817 INFO L274 PluginConnector]: CDTParser initialized [2025-03-03 14:12:42,818 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2025-03-03 14:12:43,939 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067bbdf93/ea7aea166044406099436406ecee1a2b/FLAG51022265b [2025-03-03 14:12:44,215 INFO L384 CDTParser]: Found 1 translation units. [2025-03-03 14:12:44,216 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/elevator_spec14_product24.cil.c [2025-03-03 14:12:44,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067bbdf93/ea7aea166044406099436406ecee1a2b/FLAG51022265b [2025-03-03 14:12:44,503 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/067bbdf93/ea7aea166044406099436406ecee1a2b [2025-03-03 14:12:44,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-03 14:12:44,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-03 14:12:44,507 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-03 14:12:44,507 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-03 14:12:44,509 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-03 14:12:44,510 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:12:44" (1/1) ... [2025-03-03 14:12:44,510 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15f69890 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:44, skipping insertion in model container [2025-03-03 14:12:44,511 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 02:12:44" (1/1) ... [2025-03-03 14:12:44,553 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-03 14:12:44,888 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_product24.cil.c[71679,71692] [2025-03-03 14:12:44,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:12:44,905 INFO L200 MainTranslator]: Completed pre-run [2025-03-03 14:12:44,911 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Test.i","") [48] [2025-03-03 14:12:44,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"scenario.i","") [408] [2025-03-03 14:12:44,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Specification14_spec.i","") [422] [2025-03-03 14:12:44,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Elevator.i","") [467] [2025-03-03 14:12:44,912 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Floor.i","") [2112] [2025-03-03 14:12:44,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"libacc.i","") [2773] [2025-03-03 14:12:44,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"featureselect.i","") [3139] [2025-03-03 14:12:44,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"Person.i","") [3174] [2025-03-03 14:12:44,913 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"UnitTests.i","") [3292] [2025-03-03 14:12:44,914 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"wsllib_check.i","") [3383] [2025-03-03 14:12:44,993 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_product24.cil.c[71679,71692] [2025-03-03 14:12:44,993 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-03 14:12:45,018 INFO L204 MainTranslator]: Completed translation [2025-03-03 14:12:45,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45 WrapperNode [2025-03-03 14:12:45,020 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-03 14:12:45,020 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-03 14:12:45,021 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-03 14:12:45,021 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-03 14:12:45,026 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,042 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,070 INFO L138 Inliner]: procedures = 95, calls = 346, calls flagged for inlining = 27, calls inlined = 23, statements flattened = 859 [2025-03-03 14:12:45,071 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-03 14:12:45,073 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-03 14:12:45,073 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-03 14:12:45,073 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-03 14:12:45,082 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,086 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,107 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]. [2025-03-03 14:12:45,113 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,114 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,129 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,131 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,133 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,135 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,143 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-03 14:12:45,143 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-03 14:12:45,143 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-03 14:12:45,143 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-03 14:12:45,144 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (1/1) ... [2025-03-03 14:12:45,149 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-03 14:12:45,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:45,169 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-03 14:12:45,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-03 14:12:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-03 14:12:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-03 14:12:45,190 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedAtCurrentFloor__wrappee__twothirdsfull [2025-03-03 14:12:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure getWeight [2025-03-03 14:12:45,190 INFO L138 BoogieDeclarations]: Found implementation of procedure getWeight [2025-03-03 14:12:45,190 INFO L130 BoogieDeclarations]: Found specification of procedure bigMacCall [2025-03-03 14:12:45,190 INFO L138 BoogieDeclarations]: Found implementation of procedure bigMacCall [2025-03-03 14:12:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure enterElevator [2025-03-03 14:12:45,191 INFO L138 BoogieDeclarations]: Found implementation of procedure enterElevator [2025-03-03 14:12:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure isExecutiveFloorCalling [2025-03-03 14:12:45,191 INFO L138 BoogieDeclarations]: Found implementation of procedure isExecutiveFloorCalling [2025-03-03 14:12:45,191 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection [2025-03-03 14:12:45,191 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection [2025-03-03 14:12:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure bobCall [2025-03-03 14:12:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure bobCall [2025-03-03 14:12:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure getReverseHeading [2025-03-03 14:12:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure getReverseHeading [2025-03-03 14:12:45,192 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2025-03-03 14:12:45,192 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2025-03-03 14:12:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2025-03-03 14:12:45,193 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2025-03-03 14:12:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure areDoorsOpen [2025-03-03 14:12:45,193 INFO L138 BoogieDeclarations]: Found implementation of procedure areDoorsOpen [2025-03-03 14:12:45,193 INFO L130 BoogieDeclarations]: Found specification of procedure isTopFloor [2025-03-03 14:12:45,193 INFO L138 BoogieDeclarations]: Found implementation of procedure isTopFloor [2025-03-03 14:12:45,194 INFO L130 BoogieDeclarations]: Found specification of procedure getDestination [2025-03-03 14:12:45,194 INFO L138 BoogieDeclarations]: Found implementation of procedure getDestination [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure isBlocked [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure isBlocked [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure getCurrentFloorID [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getCurrentFloorID [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure resetCallOnFloor [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure resetCallOnFloor [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure initPersonOnFloor [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure initPersonOnFloor [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure removePersonFromFloor [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure removePersonFromFloor [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure getOrigin [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure getOrigin [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure continueInDirection [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure continueInDirection [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure buttonForFloorIsPressed [2025-03-03 14:12:45,195 INFO L138 BoogieDeclarations]: Found implementation of procedure buttonForFloorIsPressed [2025-03-03 14:12:45,195 INFO L130 BoogieDeclarations]: Found specification of procedure pressInLiftFloorButton [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure pressInLiftFloorButton [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure leaveElevator [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure leaveElevator [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure isPersonOnFloor [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isPersonOnFloor [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure stopRequestedInDirection__wrappee__weight [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure stopRequestedInDirection__wrappee__weight [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure isFloorCalling [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure isFloorCalling [2025-03-03 14:12:45,196 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift__wrappee__executivefloor [2025-03-03 14:12:45,196 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift__wrappee__executivefloor [2025-03-03 14:12:45,345 INFO L256 CfgBuilder]: Building ICFG [2025-03-03 14:12:45,346 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-03 14:12:45,405 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1397-1: stopRequestedAtCurrentFloor__wrappee__weight_#res#1 := stopRequestedAtCurrentFloor__wrappee__weight_~retValue_acc~14#1; [2025-03-03 14:12:45,406 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1425: #res#1 := ~retValue_acc~15#1; [2025-03-03 14:12:45,426 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3211: #res := ~retValue_acc~29; [2025-03-03 14:12:45,456 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2100: #res := ~retValue_acc~19; [2025-03-03 14:12:45,517 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1278-1: stopRequestedInDirection__wrappee__twothirdsfull_#res#1 := stopRequestedInDirection__wrappee__twothirdsfull_~retValue_acc~11#1; [2025-03-03 14:12:45,517 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1307: #res#1 := ~retValue_acc~12#1; [2025-03-03 14:12:45,517 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1341-1: isAnyLiftButtonPressed_#res#1 := isAnyLiftButtonPressed_~retValue_acc~13#1; [2025-03-03 14:12:45,528 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1470: #res := ~retValue_acc~17; [2025-03-03 14:12:45,609 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L886-1: isIdle_#res#1 := isIdle_~retValue_acc~9#1; [2025-03-03 14:12:45,609 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L873-1: anyStopRequested_#res#1 := anyStopRequested_~retValue_acc~8#1; [2025-03-03 14:12:45,636 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2109-1: isExecutiveFloor_#res#1 := isExecutiveFloor_~retValue_acc~20#1; [2025-03-03 14:12:45,639 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L710: #res := ~retValue_acc~4; [2025-03-03 14:12:45,641 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2770: #res := ~retValue_acc~23; [2025-03-03 14:12:45,660 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3289: #res := ~retValue_acc~31; [2025-03-03 14:12:45,661 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L548: #res := ~retValue_acc~2; [2025-03-03 14:12:45,663 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L701: #res := ~retValue_acc~3; [2025-03-03 14:12:45,798 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3250: #res := ~retValue_acc~30; [2025-03-03 14:12:45,814 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L744: #res := ~retValue_acc~5; [2025-03-03 14:12:45,900 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2459: #res := ~retValue_acc~22; [2025-03-03 14:12:46,007 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1238: #res := ~retValue_acc~10; [2025-03-03 14:12:46,064 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L405-1: main_#res#1 := main_~retValue_acc~1#1; [2025-03-03 14:12:46,065 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3171-1: valid_product_#res#1 := valid_product_~retValue_acc~28#1; [2025-03-03 14:12:46,072 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2223: #res := ~retValue_acc~21; [2025-03-03 14:12:46,144 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1456-1: stopRequestedAtCurrentFloor_#res#1 := stopRequestedAtCurrentFloor_~retValue_acc~16#1; [2025-03-03 14:12:46,237 INFO L? ?]: Removed 463 outVars from TransFormulas that were not future-live. [2025-03-03 14:12:46,237 INFO L307 CfgBuilder]: Performing block encoding [2025-03-03 14:12:46,259 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-03 14:12:46,264 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-03 14:12:46,264 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:12:46 BoogieIcfgContainer [2025-03-03 14:12:46,264 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-03 14:12:46,266 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-03 14:12:46,266 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-03 14:12:46,271 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-03 14:12:46,271 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 02:12:44" (1/3) ... [2025-03-03 14:12:46,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a75329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:12:46, skipping insertion in model container [2025-03-03 14:12:46,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 02:12:45" (2/3) ... [2025-03-03 14:12:46,272 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57a75329 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 02:12:46, skipping insertion in model container [2025-03-03 14:12:46,272 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 03.03 02:12:46" (3/3) ... [2025-03-03 14:12:46,273 INFO L128 eAbstractionObserver]: Analyzing ICFG elevator_spec14_product24.cil.c [2025-03-03 14:12:46,282 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-03 14:12:46,285 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG elevator_spec14_product24.cil.c that has 28 procedures, 571 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2025-03-03 14:12:46,361 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-03 14:12:46,368 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;@6e2760b9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-03 14:12:46,368 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2025-03-03 14:12:46,373 INFO L276 IsEmpty]: Start isEmpty. Operand has 571 states, 439 states have (on average 1.6583143507972664) internal successors, (728), 457 states have internal predecessors, (728), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) [2025-03-03 14:12:46,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2025-03-03 14:12:46,380 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:46,381 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:46,381 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:46,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:46,384 INFO L85 PathProgramCache]: Analyzing trace with hash 1373621032, now seen corresponding path program 1 times [2025-03-03 14:12:46,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:46,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304538713] [2025-03-03 14:12:46,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:46,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:46,460 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-03-03 14:12:46,527 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-03-03 14:12:46,528 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:46,528 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:46,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:46,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:46,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304538713] [2025-03-03 14:12:46,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304538713] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:46,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:46,750 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:46,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103414641] [2025-03-03 14:12:46,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:46,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:46,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:46,772 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:46,772 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:46,776 INFO L87 Difference]: Start difference. First operand has 571 states, 439 states have (on average 1.6583143507972664) internal successors, (728), 457 states have internal predecessors, (728), 103 states have call successors, (103), 27 states have call predecessors, (103), 27 states have return successors, (103), 100 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:46,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:46,931 INFO L93 Difference]: Finished difference Result 1135 states and 1868 transitions. [2025-03-03 14:12:46,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:46,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2025-03-03 14:12:46,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:46,944 INFO L225 Difference]: With dead ends: 1135 [2025-03-03 14:12:46,945 INFO L226 Difference]: Without dead ends: 566 [2025-03-03 14:12:46,951 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:12:46,953 INFO L435 NwaCegarLoop]: 918 mSDtfsCounter, 6 mSDsluCounter, 1830 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 2748 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:46,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 2748 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:46,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-03 14:12:47,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-03-03 14:12:47,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.650574712643678) internal successors, (718), 452 states have internal predecessors, (718), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 923 transitions. [2025-03-03 14:12:47,027 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 923 transitions. Word has length 63 [2025-03-03 14:12:47,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,028 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 923 transitions. [2025-03-03 14:12:47,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,028 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 923 transitions. [2025-03-03 14:12:47,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2025-03-03 14:12:47,033 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,033 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-03 14:12:47,033 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,034 INFO L85 PathProgramCache]: Analyzing trace with hash 376910726, now seen corresponding path program 1 times [2025-03-03 14:12:47,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575204724] [2025-03-03 14:12:47,035 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,055 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-03 14:12:47,076 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-03 14:12:47,076 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,215 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:47,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:47,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575204724] [2025-03-03 14:12:47,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575204724] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:47,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:47,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136102072] [2025-03-03 14:12:47,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,216 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:47,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,217 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:47,217 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,217 INFO L87 Difference]: Start difference. First operand 566 states and 923 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:47,285 INFO L93 Difference]: Finished difference Result 1115 states and 1823 transitions. [2025-03-03 14:12:47,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:47,286 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 64 [2025-03-03 14:12:47,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:47,290 INFO L225 Difference]: With dead ends: 1115 [2025-03-03 14:12:47,290 INFO L226 Difference]: Without dead ends: 566 [2025-03-03 14:12:47,293 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,294 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 4 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:47,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 2720 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:47,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-03 14:12:47,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-03-03 14:12:47,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.6482758620689655) internal successors, (717), 452 states have internal predecessors, (717), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:47,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 922 transitions. [2025-03-03 14:12:47,332 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 922 transitions. Word has length 64 [2025-03-03 14:12:47,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,332 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 922 transitions. [2025-03-03 14:12:47,332 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,332 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 922 transitions. [2025-03-03 14:12:47,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2025-03-03 14:12:47,337 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,337 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-03 14:12:47,337 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,337 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,337 INFO L85 PathProgramCache]: Analyzing trace with hash -131068347, now seen corresponding path program 1 times [2025-03-03 14:12:47,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688606366] [2025-03-03 14:12:47,338 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 65 statements into 1 equivalence classes. [2025-03-03 14:12:47,364 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 65 of 65 statements. [2025-03-03 14:12:47,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,473 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:47,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:47,473 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688606366] [2025-03-03 14:12:47,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688606366] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:47,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:47,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271544873] [2025-03-03 14:12:47,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,474 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:47,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,474 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:47,474 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,475 INFO L87 Difference]: Start difference. First operand 566 states and 922 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:47,528 INFO L93 Difference]: Finished difference Result 1115 states and 1822 transitions. [2025-03-03 14:12:47,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:47,529 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 65 [2025-03-03 14:12:47,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:47,532 INFO L225 Difference]: With dead ends: 1115 [2025-03-03 14:12:47,532 INFO L226 Difference]: Without dead ends: 566 [2025-03-03 14:12:47,536 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,537 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 3 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:47,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 2720 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:47,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-03 14:12:47,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-03-03 14:12:47,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.645977011494253) internal successors, (716), 452 states have internal predecessors, (716), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 921 transitions. [2025-03-03 14:12:47,564 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 921 transitions. Word has length 65 [2025-03-03 14:12:47,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,564 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 921 transitions. [2025-03-03 14:12:47,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,565 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 921 transitions. [2025-03-03 14:12:47,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2025-03-03 14:12:47,567 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,568 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-03 14:12:47,568 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1626718915, now seen corresponding path program 1 times [2025-03-03 14:12:47,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775571445] [2025-03-03 14:12:47,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,587 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-03-03 14:12:47,593 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-03-03 14:12:47,594 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,595 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,670 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:47,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:47,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775571445] [2025-03-03 14:12:47,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775571445] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:47,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:47,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764768407] [2025-03-03 14:12:47,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:47,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,671 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:47,671 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,672 INFO L87 Difference]: Start difference. First operand 566 states and 921 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:47,713 INFO L93 Difference]: Finished difference Result 1115 states and 1821 transitions. [2025-03-03 14:12:47,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:47,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 66 [2025-03-03 14:12:47,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:47,719 INFO L225 Difference]: With dead ends: 1115 [2025-03-03 14:12:47,719 INFO L226 Difference]: Without dead ends: 566 [2025-03-03 14:12:47,721 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,722 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 2 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:47,722 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 2720 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:47,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-03 14:12:47,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-03-03 14:12:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.6436781609195403) internal successors, (715), 452 states have internal predecessors, (715), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:47,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 920 transitions. [2025-03-03 14:12:47,743 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 920 transitions. Word has length 66 [2025-03-03 14:12:47,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,744 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 920 transitions. [2025-03-03 14:12:47,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,745 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 920 transitions. [2025-03-03 14:12:47,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2025-03-03 14:12:47,745 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,745 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-03 14:12:47,745 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,746 INFO L85 PathProgramCache]: Analyzing trace with hash 608818530, now seen corresponding path program 1 times [2025-03-03 14:12:47,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [668680634] [2025-03-03 14:12:47,746 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,756 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-03 14:12:47,764 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-03 14:12:47,765 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,765 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:47,853 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:47,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:47,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [668680634] [2025-03-03 14:12:47,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [668680634] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:47,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:47,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:47,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215243954] [2025-03-03 14:12:47,854 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:47,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:47,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:47,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:47,854 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,854 INFO L87 Difference]: Start difference. First operand 566 states and 920 transitions. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:47,896 INFO L93 Difference]: Finished difference Result 1115 states and 1820 transitions. [2025-03-03 14:12:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:47,896 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 67 [2025-03-03 14:12:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:47,900 INFO L225 Difference]: With dead ends: 1115 [2025-03-03 14:12:47,901 INFO L226 Difference]: Without dead ends: 566 [2025-03-03 14:12:47,903 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:47,905 INFO L435 NwaCegarLoop]: 909 mSDtfsCounter, 1 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2720 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:47,905 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2720 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:47,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 566 states. [2025-03-03 14:12:47,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 566 to 566. [2025-03-03 14:12:47,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 566 states, 435 states have (on average 1.6413793103448275) internal successors, (714), 452 states have internal predecessors, (714), 103 states have call successors, (103), 28 states have call predecessors, (103), 27 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:47,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 566 states to 566 states and 919 transitions. [2025-03-03 14:12:47,926 INFO L78 Accepts]: Start accepts. Automaton has 566 states and 919 transitions. Word has length 67 [2025-03-03 14:12:47,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:47,927 INFO L471 AbstractCegarLoop]: Abstraction has 566 states and 919 transitions. [2025-03-03 14:12:47,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:47,927 INFO L276 IsEmpty]: Start isEmpty. Operand 566 states and 919 transitions. [2025-03-03 14:12:47,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-03 14:12:47,928 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:47,928 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:47,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-03 14:12:47,929 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:47,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:47,929 INFO L85 PathProgramCache]: Analyzing trace with hash -556052992, now seen corresponding path program 1 times [2025-03-03 14:12:47,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:47,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682536115] [2025-03-03 14:12:47,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:47,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:47,945 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-03 14:12:47,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-03 14:12:47,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:47,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:48,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:48,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682536115] [2025-03-03 14:12:48,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682536115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:48,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:48,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 14:12:48,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939215611] [2025-03-03 14:12:48,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:48,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:12:48,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:48,112 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:12:48,112 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:48,112 INFO L87 Difference]: Start difference. First operand 566 states and 919 transitions. Second operand has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:48,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:48,202 INFO L93 Difference]: Finished difference Result 1126 states and 1837 transitions. [2025-03-03 14:12:48,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:48,202 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 68 [2025-03-03 14:12:48,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:48,207 INFO L225 Difference]: With dead ends: 1126 [2025-03-03 14:12:48,207 INFO L226 Difference]: Without dead ends: 581 [2025-03-03 14:12:48,211 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:12:48,212 INFO L435 NwaCegarLoop]: 906 mSDtfsCounter, 91 mSDsluCounter, 4445 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 5351 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:48,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 5351 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:48,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 581 states. [2025-03-03 14:12:48,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 581 to 579. [2025-03-03 14:12:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 579 states, 445 states have (on average 1.6382022471910112) internal successors, (729), 464 states have internal predecessors, (729), 104 states have call successors, (104), 28 states have call predecessors, (104), 29 states have return successors, (106), 100 states have call predecessors, (106), 103 states have call successors, (106) [2025-03-03 14:12:48,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 579 states to 579 states and 939 transitions. [2025-03-03 14:12:48,237 INFO L78 Accepts]: Start accepts. Automaton has 579 states and 939 transitions. Word has length 68 [2025-03-03 14:12:48,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:48,237 INFO L471 AbstractCegarLoop]: Abstraction has 579 states and 939 transitions. [2025-03-03 14:12:48,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.166666666666666) internal successors, (49), 6 states have internal predecessors, (49), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:48,237 INFO L276 IsEmpty]: Start isEmpty. Operand 579 states and 939 transitions. [2025-03-03 14:12:48,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2025-03-03 14:12:48,238 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:48,238 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:48,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-03 14:12:48,238 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:48,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:48,239 INFO L85 PathProgramCache]: Analyzing trace with hash 213117023, now seen corresponding path program 1 times [2025-03-03 14:12:48,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:48,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663475425] [2025-03-03 14:12:48,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:48,253 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 68 statements into 1 equivalence classes. [2025-03-03 14:12:48,261 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 68 of 68 statements. [2025-03-03 14:12:48,261 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:48,261 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:48,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:48,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663475425] [2025-03-03 14:12:48,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663475425] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:48,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:48,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:48,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917075215] [2025-03-03 14:12:48,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:48,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:48,321 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:48,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:48,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:48,322 INFO L87 Difference]: Start difference. First operand 579 states and 939 transitions. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:48,369 INFO L93 Difference]: Finished difference Result 1133 states and 1848 transitions. [2025-03-03 14:12:48,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:12:48,370 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2025-03-03 14:12:48,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:48,374 INFO L225 Difference]: With dead ends: 1133 [2025-03-03 14:12:48,374 INFO L226 Difference]: Without dead ends: 575 [2025-03-03 14:12:48,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-03-03 14:12:48,377 INFO L435 NwaCegarLoop]: 907 mSDtfsCounter, 1 mSDsluCounter, 1808 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2715 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:48,377 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 2715 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:48,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2025-03-03 14:12:48,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 575. [2025-03-03 14:12:48,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 575 states, 443 states have (on average 1.6388261851015802) internal successors, (726), 461 states have internal predecessors, (726), 103 states have call successors, (103), 28 states have call predecessors, (103), 28 states have return successors, (103), 99 states have call predecessors, (103), 102 states have call successors, (103) [2025-03-03 14:12:48,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 575 states to 575 states and 932 transitions. [2025-03-03 14:12:48,395 INFO L78 Accepts]: Start accepts. Automaton has 575 states and 932 transitions. Word has length 68 [2025-03-03 14:12:48,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:48,395 INFO L471 AbstractCegarLoop]: Abstraction has 575 states and 932 transitions. [2025-03-03 14:12:48,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 2 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,395 INFO L276 IsEmpty]: Start isEmpty. Operand 575 states and 932 transitions. [2025-03-03 14:12:48,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2025-03-03 14:12:48,396 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:48,396 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:48,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-03 14:12:48,396 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:48,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:48,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1169271627, now seen corresponding path program 1 times [2025-03-03 14:12:48,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:48,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219317030] [2025-03-03 14:12:48,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:48,409 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-03-03 14:12:48,415 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-03-03 14:12:48,415 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:48,415 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:48,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:48,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219317030] [2025-03-03 14:12:48,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219317030] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:48,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:48,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:48,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576487891] [2025-03-03 14:12:48,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:48,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:48,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:48,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:48,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:48,513 INFO L87 Difference]: Start difference. First operand 575 states and 932 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:48,708 INFO L93 Difference]: Finished difference Result 1176 states and 1920 transitions. [2025-03-03 14:12:48,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:48,708 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 69 [2025-03-03 14:12:48,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:48,713 INFO L225 Difference]: With dead ends: 1176 [2025-03-03 14:12:48,713 INFO L226 Difference]: Without dead ends: 607 [2025-03-03 14:12:48,715 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:12:48,715 INFO L435 NwaCegarLoop]: 881 mSDtfsCounter, 72 mSDsluCounter, 3445 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 4326 SdHoareTripleChecker+Invalid, 355 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:48,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 4326 Invalid, 355 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-03-03 14:12:48,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 607 states. [2025-03-03 14:12:48,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 607 to 580. [2025-03-03 14:12:48,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 448 states have (on average 1.625) internal successors, (728), 465 states have internal predecessors, (728), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:48,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 933 transitions. [2025-03-03 14:12:48,732 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 933 transitions. Word has length 69 [2025-03-03 14:12:48,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:48,732 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 933 transitions. [2025-03-03 14:12:48,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,732 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 933 transitions. [2025-03-03 14:12:48,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2025-03-03 14:12:48,733 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:48,733 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:48,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-03 14:12:48,733 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:48,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:48,733 INFO L85 PathProgramCache]: Analyzing trace with hash 102639223, now seen corresponding path program 1 times [2025-03-03 14:12:48,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:48,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293047682] [2025-03-03 14:12:48,733 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:48,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-03-03 14:12:48,751 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-03-03 14:12:48,751 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:48,751 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:48,820 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:48,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:48,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293047682] [2025-03-03 14:12:48,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293047682] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:48,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:48,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:48,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922407811] [2025-03-03 14:12:48,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:48,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:48,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:48,821 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:48,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:48,821 INFO L87 Difference]: Start difference. First operand 580 states and 933 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:48,971 INFO L93 Difference]: Finished difference Result 1127 states and 1815 transitions. [2025-03-03 14:12:48,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:48,971 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 70 [2025-03-03 14:12:48,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:48,975 INFO L225 Difference]: With dead ends: 1127 [2025-03-03 14:12:48,975 INFO L226 Difference]: Without dead ends: 598 [2025-03-03 14:12:48,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:48,977 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 56 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:48,977 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 4303 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:48,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2025-03-03 14:12:48,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 580. [2025-03-03 14:12:48,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 448 states have (on average 1.6160714285714286) internal successors, (724), 465 states have internal predecessors, (724), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:48,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 929 transitions. [2025-03-03 14:12:48,992 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 929 transitions. Word has length 70 [2025-03-03 14:12:48,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:48,992 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 929 transitions. [2025-03-03 14:12:48,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 6 states have internal predecessors, (51), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:48,992 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 929 transitions. [2025-03-03 14:12:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-03 14:12:48,993 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:48,993 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:48,993 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-03 14:12:48,993 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:48,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:48,993 INFO L85 PathProgramCache]: Analyzing trace with hash 2062727182, now seen corresponding path program 1 times [2025-03-03 14:12:48,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:48,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500319010] [2025-03-03 14:12:48,993 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:48,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-03 14:12:49,008 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-03 14:12:49,009 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,009 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:49,072 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,072 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500319010] [2025-03-03 14:12:49,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500319010] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:49,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:49,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959476479] [2025-03-03 14:12:49,072 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:49,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,073 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:49,073 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:49,073 INFO L87 Difference]: Start difference. First operand 580 states and 929 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,212 INFO L93 Difference]: Finished difference Result 1127 states and 1811 transitions. [2025-03-03 14:12:49,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:49,212 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 71 [2025-03-03 14:12:49,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,216 INFO L225 Difference]: With dead ends: 1127 [2025-03-03 14:12:49,216 INFO L226 Difference]: Without dead ends: 598 [2025-03-03 14:12:49,218 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:49,219 INFO L435 NwaCegarLoop]: 869 mSDtfsCounter, 55 mSDsluCounter, 3429 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 4298 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:49,219 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 4298 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:49,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 598 states. [2025-03-03 14:12:49,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 598 to 580. [2025-03-03 14:12:49,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 448 states have (on average 1.6071428571428572) internal successors, (720), 465 states have internal predecessors, (720), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:49,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 925 transitions. [2025-03-03 14:12:49,233 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 925 transitions. Word has length 71 [2025-03-03 14:12:49,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,233 INFO L471 AbstractCegarLoop]: Abstraction has 580 states and 925 transitions. [2025-03-03 14:12:49,233 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,233 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 925 transitions. [2025-03-03 14:12:49,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2025-03-03 14:12:49,234 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,234 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,234 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-03 14:12:49,234 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,235 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,235 INFO L85 PathProgramCache]: Analyzing trace with hash 309396669, now seen corresponding path program 1 times [2025-03-03 14:12:49,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781002241] [2025-03-03 14:12:49,235 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,244 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-03-03 14:12:49,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-03-03 14:12:49,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,339 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:49,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781002241] [2025-03-03 14:12:49,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781002241] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:49,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-03-03 14:12:49,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226162050] [2025-03-03 14:12:49,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:12:49,340 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,340 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:12:49,341 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:49,341 INFO L87 Difference]: Start difference. First operand 580 states and 925 transitions. Second operand has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:49,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,407 INFO L93 Difference]: Finished difference Result 1118 states and 1793 transitions. [2025-03-03 14:12:49,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:12:49,408 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 71 [2025-03-03 14:12:49,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,412 INFO L225 Difference]: With dead ends: 1118 [2025-03-03 14:12:49,412 INFO L226 Difference]: Without dead ends: 568 [2025-03-03 14:12:49,414 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:12:49,415 INFO L435 NwaCegarLoop]: 895 mSDtfsCounter, 94 mSDsluCounter, 4379 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 5274 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:49,415 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 5274 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:49,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-03 14:12:49,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 559. [2025-03-03 14:12:49,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 427 states have (on average 1.5995316159250585) internal successors, (683), 444 states have internal predecessors, (683), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 888 transitions. [2025-03-03 14:12:49,429 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 888 transitions. Word has length 71 [2025-03-03 14:12:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,429 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 888 transitions. [2025-03-03 14:12:49,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.666666666666666) internal successors, (52), 6 states have internal predecessors, (52), 3 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:49,430 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 888 transitions. [2025-03-03 14:12:49,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2025-03-03 14:12:49,431 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,431 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-03 14:12:49,431 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,432 INFO L85 PathProgramCache]: Analyzing trace with hash -933101414, now seen corresponding path program 1 times [2025-03-03 14:12:49,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752992129] [2025-03-03 14:12:49,432 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,442 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-03-03 14:12:49,450 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-03-03 14:12:49,450 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,450 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:49,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752992129] [2025-03-03 14:12:49,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752992129] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,514 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:49,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:49,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958500239] [2025-03-03 14:12:49,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:49,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,515 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:49,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:49,515 INFO L87 Difference]: Start difference. First operand 559 states and 888 transitions. Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,601 INFO L93 Difference]: Finished difference Result 1097 states and 1756 transitions. [2025-03-03 14:12:49,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:49,602 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 72 [2025-03-03 14:12:49,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,605 INFO L225 Difference]: With dead ends: 1097 [2025-03-03 14:12:49,605 INFO L226 Difference]: Without dead ends: 568 [2025-03-03 14:12:49,607 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:49,608 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 39 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:49,608 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 4303 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:49,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-03 14:12:49,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 559. [2025-03-03 14:12:49,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 427 states have (on average 1.5971896955503513) internal successors, (682), 444 states have internal predecessors, (682), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 887 transitions. [2025-03-03 14:12:49,623 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 887 transitions. Word has length 72 [2025-03-03 14:12:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,624 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 887 transitions. [2025-03-03 14:12:49,624 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 6 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,624 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 887 transitions. [2025-03-03 14:12:49,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2025-03-03 14:12:49,624 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,625 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-03 14:12:49,625 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1351446737, now seen corresponding path program 1 times [2025-03-03 14:12:49,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631810959] [2025-03-03 14:12:49,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,635 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 73 statements into 1 equivalence classes. [2025-03-03 14:12:49,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 73 of 73 statements. [2025-03-03 14:12:49,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:49,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631810959] [2025-03-03 14:12:49,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631810959] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:49,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-03 14:12:49,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129757442] [2025-03-03 14:12:49,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,706 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:49,706 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,707 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:49,707 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-03 14:12:49,707 INFO L87 Difference]: Start difference. First operand 559 states and 887 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,782 INFO L93 Difference]: Finished difference Result 1097 states and 1755 transitions. [2025-03-03 14:12:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:49,782 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 73 [2025-03-03 14:12:49,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,786 INFO L225 Difference]: With dead ends: 1097 [2025-03-03 14:12:49,786 INFO L226 Difference]: Without dead ends: 568 [2025-03-03 14:12:49,788 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2025-03-03 14:12:49,788 INFO L435 NwaCegarLoop]: 870 mSDtfsCounter, 38 mSDsluCounter, 3433 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 4303 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:49,788 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 4303 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:49,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2025-03-03 14:12:49,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 559. [2025-03-03 14:12:49,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 427 states have (on average 1.594847775175644) internal successors, (681), 444 states have internal predecessors, (681), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:49,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 886 transitions. [2025-03-03 14:12:49,802 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 886 transitions. Word has length 73 [2025-03-03 14:12:49,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,802 INFO L471 AbstractCegarLoop]: Abstraction has 559 states and 886 transitions. [2025-03-03 14:12:49,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,802 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 886 transitions. [2025-03-03 14:12:49,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2025-03-03 14:12:49,803 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,803 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,803 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-03 14:12:49,803 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,803 INFO L85 PathProgramCache]: Analyzing trace with hash -176050499, now seen corresponding path program 1 times [2025-03-03 14:12:49,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855275927] [2025-03-03 14:12:49,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,813 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 74 statements into 1 equivalence classes. [2025-03-03 14:12:49,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 74 of 74 statements. [2025-03-03 14:12:49,818 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,818 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:49,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:49,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:49,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855275927] [2025-03-03 14:12:49,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855275927] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:49,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:49,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-03 14:12:49,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941039195] [2025-03-03 14:12:49,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:49,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:12:49,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:49,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:12:49,869 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:49,869 INFO L87 Difference]: Start difference. First operand 559 states and 886 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:49,909 INFO L93 Difference]: Finished difference Result 1084 states and 1734 transitions. [2025-03-03 14:12:49,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-03 14:12:49,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 74 [2025-03-03 14:12:49,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:49,913 INFO L225 Difference]: With dead ends: 1084 [2025-03-03 14:12:49,913 INFO L226 Difference]: Without dead ends: 561 [2025-03-03 14:12:49,915 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-03 14:12:49,915 INFO L435 NwaCegarLoop]: 849 mSDtfsCounter, 16 mSDsluCounter, 1682 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 2531 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:49,915 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 2531 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:12:49,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2025-03-03 14:12:49,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 561. [2025-03-03 14:12:49,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 561 states, 429 states have (on average 1.5897435897435896) internal successors, (682), 446 states have internal predecessors, (682), 103 states have call successors, (103), 29 states have call predecessors, (103), 28 states have return successors, (102), 99 states have call predecessors, (102), 102 states have call successors, (102) [2025-03-03 14:12:49,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 561 states to 561 states and 887 transitions. [2025-03-03 14:12:49,929 INFO L78 Accepts]: Start accepts. Automaton has 561 states and 887 transitions. Word has length 74 [2025-03-03 14:12:49,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:49,929 INFO L471 AbstractCegarLoop]: Abstraction has 561 states and 887 transitions. [2025-03-03 14:12:49,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-03-03 14:12:49,930 INFO L276 IsEmpty]: Start isEmpty. Operand 561 states and 887 transitions. [2025-03-03 14:12:49,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2025-03-03 14:12:49,930 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:49,930 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:49,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-03 14:12:49,931 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:49,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:49,931 INFO L85 PathProgramCache]: Analyzing trace with hash 95804868, now seen corresponding path program 1 times [2025-03-03 14:12:49,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:49,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677720522] [2025-03-03 14:12:49,931 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:49,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:49,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 75 statements into 1 equivalence classes. [2025-03-03 14:12:49,947 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 75 of 75 statements. [2025-03-03 14:12:49,947 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:49,947 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:50,050 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-03-03 14:12:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:50,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677720522] [2025-03-03 14:12:50,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677720522] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:50,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:12:50,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-03 14:12:50,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606870914] [2025-03-03 14:12:50,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:50,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:12:50,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:50,052 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:12:50,052 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:12:50,052 INFO L87 Difference]: Start difference. First operand 561 states and 887 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:50,161 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:50,161 INFO L93 Difference]: Finished difference Result 1593 states and 2571 transitions. [2025-03-03 14:12:50,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:12:50,162 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 75 [2025-03-03 14:12:50,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:50,169 INFO L225 Difference]: With dead ends: 1593 [2025-03-03 14:12:50,169 INFO L226 Difference]: Without dead ends: 1075 [2025-03-03 14:12:50,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-03 14:12:50,173 INFO L435 NwaCegarLoop]: 954 mSDtfsCounter, 836 mSDsluCounter, 818 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 836 SdHoareTripleChecker+Valid, 1772 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:50,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [836 Valid, 1772 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:12:50,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1075 states. [2025-03-03 14:12:50,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1075 to 1012. [2025-03-03 14:12:50,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1012 states, 780 states have (on average 1.6102564102564103) internal successors, (1256), 806 states have internal predecessors, (1256), 182 states have call successors, (182), 51 states have call predecessors, (182), 49 states have return successors, (187), 169 states have call predecessors, (187), 180 states have call successors, (187) [2025-03-03 14:12:50,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1012 states to 1012 states and 1625 transitions. [2025-03-03 14:12:50,212 INFO L78 Accepts]: Start accepts. Automaton has 1012 states and 1625 transitions. Word has length 75 [2025-03-03 14:12:50,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:50,212 INFO L471 AbstractCegarLoop]: Abstraction has 1012 states and 1625 transitions. [2025-03-03 14:12:50,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (9), 2 states have call predecessors, (9), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2025-03-03 14:12:50,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1012 states and 1625 transitions. [2025-03-03 14:12:50,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2025-03-03 14:12:50,216 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:50,216 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:50,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2025-03-03 14:12:50,216 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:50,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:50,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1326799292, now seen corresponding path program 1 times [2025-03-03 14:12:50,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:50,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600144339] [2025-03-03 14:12:50,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:50,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:50,234 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-03 14:12:50,245 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-03 14:12:50,246 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:50,246 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-03 14:12:50,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:50,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600144339] [2025-03-03 14:12:50,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [600144339] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:50,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [919457782] [2025-03-03 14:12:50,342 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:50,342 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:50,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:50,345 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:50,347 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-03 14:12:50,462 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 130 statements into 1 equivalence classes. [2025-03-03 14:12:50,606 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 130 of 130 statements. [2025-03-03 14:12:50,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:50,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:50,611 INFO L256 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:50,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:50,725 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2025-03-03 14:12:50,725 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:50,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [919457782] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:50,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:50,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:50,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783054106] [2025-03-03 14:12:50,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:50,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:50,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:50,727 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:50,727 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:50,727 INFO L87 Difference]: Start difference. First operand 1012 states and 1625 transitions. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:51,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:51,192 INFO L93 Difference]: Finished difference Result 1997 states and 3287 transitions. [2025-03-03 14:12:51,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:51,192 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 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 130 [2025-03-03 14:12:51,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:51,199 INFO L225 Difference]: With dead ends: 1997 [2025-03-03 14:12:51,199 INFO L226 Difference]: Without dead ends: 1028 [2025-03-03 14:12:51,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:51,203 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 823 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 469 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 827 SdHoareTripleChecker+Valid, 2140 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 469 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:51,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [827 Valid, 2140 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 469 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:51,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1028 states. [2025-03-03 14:12:51,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1028 to 1028. [2025-03-03 14:12:51,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1028 states, 794 states have (on average 1.6120906801007557) internal successors, (1280), 820 states have internal predecessors, (1280), 182 states have call successors, (182), 53 states have call predecessors, (182), 51 states have return successors, (189), 169 states have call predecessors, (189), 180 states have call successors, (189) [2025-03-03 14:12:51,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1028 states to 1028 states and 1651 transitions. [2025-03-03 14:12:51,240 INFO L78 Accepts]: Start accepts. Automaton has 1028 states and 1651 transitions. Word has length 130 [2025-03-03 14:12:51,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:51,240 INFO L471 AbstractCegarLoop]: Abstraction has 1028 states and 1651 transitions. [2025-03-03 14:12:51,240 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 4 states have internal predecessors, (83), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:51,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1028 states and 1651 transitions. [2025-03-03 14:12:51,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2025-03-03 14:12:51,243 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:51,243 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:51,252 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-03-03 14:12:51,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2025-03-03 14:12:51,444 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:51,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:51,445 INFO L85 PathProgramCache]: Analyzing trace with hash -450694694, now seen corresponding path program 1 times [2025-03-03 14:12:51,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:51,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545699421] [2025-03-03 14:12:51,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:51,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:51,457 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:51,464 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:51,464 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:51,464 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:51,690 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-03-03 14:12:51,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:51,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545699421] [2025-03-03 14:12:51,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545699421] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:51,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860005386] [2025-03-03 14:12:51,690 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:51,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:51,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:51,692 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:51,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-03 14:12:51,809 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 132 statements into 1 equivalence classes. [2025-03-03 14:12:51,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 132 of 132 statements. [2025-03-03 14:12:51,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:51,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:51,951 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-03-03 14:12:51,956 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:52,062 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-03 14:12:52,063 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:52,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860005386] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:52,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:52,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [12] total 16 [2025-03-03 14:12:52,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237098768] [2025-03-03 14:12:52,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:52,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:52,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:52,064 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:52,064 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:12:52,064 INFO L87 Difference]: Start difference. First operand 1028 states and 1651 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-03 14:12:52,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:52,472 INFO L93 Difference]: Finished difference Result 2614 states and 4208 transitions. [2025-03-03 14:12:52,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:52,473 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 132 [2025-03-03 14:12:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:52,483 INFO L225 Difference]: With dead ends: 2614 [2025-03-03 14:12:52,483 INFO L226 Difference]: Without dead ends: 1629 [2025-03-03 14:12:52,488 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2025-03-03 14:12:52,489 INFO L435 NwaCegarLoop]: 1124 mSDtfsCounter, 822 mSDsluCounter, 3344 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 824 SdHoareTripleChecker+Valid, 4468 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:52,489 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [824 Valid, 4468 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-03 14:12:52,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1629 states. [2025-03-03 14:12:52,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1629 to 1627. [2025-03-03 14:12:52,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1627 states, 1254 states have (on average 1.5845295055821371) internal successors, (1987), 1283 states have internal predecessors, (1987), 285 states have call successors, (285), 91 states have call predecessors, (285), 87 states have return successors, (319), 268 states have call predecessors, (319), 281 states have call successors, (319) [2025-03-03 14:12:52,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1627 states to 1627 states and 2591 transitions. [2025-03-03 14:12:52,561 INFO L78 Accepts]: Start accepts. Automaton has 1627 states and 2591 transitions. Word has length 132 [2025-03-03 14:12:52,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:52,563 INFO L471 AbstractCegarLoop]: Abstraction has 1627 states and 2591 transitions. [2025-03-03 14:12:52,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 4 states have internal predecessors, (79), 2 states have call successors, (16), 2 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-03-03 14:12:52,564 INFO L276 IsEmpty]: Start isEmpty. Operand 1627 states and 2591 transitions. [2025-03-03 14:12:52,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2025-03-03 14:12:52,567 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:52,567 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:52,576 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:52,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-03-03 14:12:52,768 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:52,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:52,769 INFO L85 PathProgramCache]: Analyzing trace with hash -602726752, now seen corresponding path program 1 times [2025-03-03 14:12:52,769 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:52,769 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136369077] [2025-03-03 14:12:52,769 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:52,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:52,783 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-03 14:12:52,792 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-03 14:12:52,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:52,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:52,873 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-03-03 14:12:52,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136369077] [2025-03-03 14:12:52,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136369077] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:52,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1408270581] [2025-03-03 14:12:52,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:52,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:52,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:52,876 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:52,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-03 14:12:52,987 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 133 statements into 1 equivalence classes. [2025-03-03 14:12:53,119 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 133 of 133 statements. [2025-03-03 14:12:53,119 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:53,119 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:53,124 INFO L256 TraceCheckSpWp]: Trace formula consists of 1450 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:53,127 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:53,219 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 14:12:53,222 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:53,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1408270581] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:53,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:53,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:53,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053908314] [2025-03-03 14:12:53,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:53,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:53,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:53,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:53,223 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:53,223 INFO L87 Difference]: Start difference. First operand 1627 states and 2591 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:53,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:53,684 INFO L93 Difference]: Finished difference Result 3243 states and 5310 transitions. [2025-03-03 14:12:53,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:53,684 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (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 133 [2025-03-03 14:12:53,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:53,693 INFO L225 Difference]: With dead ends: 3243 [2025-03-03 14:12:53,694 INFO L226 Difference]: Without dead ends: 1659 [2025-03-03 14:12:53,701 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:53,702 INFO L435 NwaCegarLoop]: 845 mSDtfsCounter, 814 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2137 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:53,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2137 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 468 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:53,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1659 states. [2025-03-03 14:12:53,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1659 to 1659. [2025-03-03 14:12:53,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1659 states, 1282 states have (on average 1.5873634945397816) internal successors, (2035), 1311 states have internal predecessors, (2035), 285 states have call successors, (285), 95 states have call predecessors, (285), 91 states have return successors, (323), 268 states have call predecessors, (323), 281 states have call successors, (323) [2025-03-03 14:12:53,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1659 states to 1659 states and 2643 transitions. [2025-03-03 14:12:53,764 INFO L78 Accepts]: Start accepts. Automaton has 1659 states and 2643 transitions. Word has length 133 [2025-03-03 14:12:53,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:53,764 INFO L471 AbstractCegarLoop]: Abstraction has 1659 states and 2643 transitions. [2025-03-03 14:12:53,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:53,765 INFO L276 IsEmpty]: Start isEmpty. Operand 1659 states and 2643 transitions. [2025-03-03 14:12:53,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2025-03-03 14:12:53,768 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:53,768 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:53,777 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-03 14:12:53,969 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-03-03 14:12:53,969 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:53,970 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:53,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1747807744, now seen corresponding path program 1 times [2025-03-03 14:12:53,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:53,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953005039] [2025-03-03 14:12:53,970 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:53,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:53,984 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-03 14:12:53,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-03 14:12:53,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:53,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:54,070 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2025-03-03 14:12:54,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:54,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953005039] [2025-03-03 14:12:54,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953005039] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:54,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1909270002] [2025-03-03 14:12:54,070 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:54,071 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:54,072 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:54,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-03 14:12:54,180 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 136 statements into 1 equivalence classes. [2025-03-03 14:12:54,290 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 136 of 136 statements. [2025-03-03 14:12:54,290 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:54,290 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:54,294 INFO L256 TraceCheckSpWp]: Trace formula consists of 1453 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:54,297 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:54,424 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:12:54,427 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:54,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1909270002] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:54,428 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:54,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:54,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742111689] [2025-03-03 14:12:54,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:54,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:54,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:54,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:54,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:54,431 INFO L87 Difference]: Start difference. First operand 1659 states and 2643 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:54,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:54,874 INFO L93 Difference]: Finished difference Result 3307 states and 5402 transitions. [2025-03-03 14:12:54,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:54,874 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (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 136 [2025-03-03 14:12:54,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:54,884 INFO L225 Difference]: With dead ends: 3307 [2025-03-03 14:12:54,884 INFO L226 Difference]: Without dead ends: 1691 [2025-03-03 14:12:54,891 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 134 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:54,892 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 811 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 821 SdHoareTripleChecker+Valid, 2134 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:54,892 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [821 Valid, 2134 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:54,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1691 states. [2025-03-03 14:12:54,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1691 to 1691. [2025-03-03 14:12:54,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1691 states, 1310 states have (on average 1.5900763358778627) internal successors, (2083), 1339 states have internal predecessors, (2083), 285 states have call successors, (285), 99 states have call predecessors, (285), 95 states have return successors, (327), 268 states have call predecessors, (327), 281 states have call successors, (327) [2025-03-03 14:12:54,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1691 states to 1691 states and 2695 transitions. [2025-03-03 14:12:54,945 INFO L78 Accepts]: Start accepts. Automaton has 1691 states and 2695 transitions. Word has length 136 [2025-03-03 14:12:54,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:54,947 INFO L471 AbstractCegarLoop]: Abstraction has 1691 states and 2695 transitions. [2025-03-03 14:12:54,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 4 states have internal predecessors, (87), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:54,947 INFO L276 IsEmpty]: Start isEmpty. Operand 1691 states and 2695 transitions. [2025-03-03 14:12:54,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-03-03 14:12:54,950 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:54,951 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:54,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:55,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:55,152 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:55,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:55,152 INFO L85 PathProgramCache]: Analyzing trace with hash 163718455, now seen corresponding path program 1 times [2025-03-03 14:12:55,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:55,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648026968] [2025-03-03 14:12:55,153 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:55,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:55,165 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-03 14:12:55,172 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-03 14:12:55,172 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:55,172 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:55,250 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2025-03-03 14:12:55,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648026968] [2025-03-03 14:12:55,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648026968] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:55,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81063692] [2025-03-03 14:12:55,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:55,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:55,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:55,276 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:55,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-03 14:12:55,383 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-03-03 14:12:55,494 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-03-03 14:12:55,494 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:55,494 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:55,498 INFO L256 TraceCheckSpWp]: Trace formula consists of 1456 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-03 14:12:55,501 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:55,584 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2025-03-03 14:12:55,587 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:55,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81063692] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:55,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:55,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2025-03-03 14:12:55,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1783159243] [2025-03-03 14:12:55,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:55,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-03 14:12:55,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:55,589 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-03 14:12:55,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2025-03-03 14:12:55,590 INFO L87 Difference]: Start difference. First operand 1691 states and 2695 transitions. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:56,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:56,041 INFO L93 Difference]: Finished difference Result 3371 states and 5494 transitions. [2025-03-03 14:12:56,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:56,041 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (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 139 [2025-03-03 14:12:56,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:56,050 INFO L225 Difference]: With dead ends: 3371 [2025-03-03 14:12:56,051 INFO L226 Difference]: Without dead ends: 1723 [2025-03-03 14:12:56,057 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:12:56,058 INFO L435 NwaCegarLoop]: 839 mSDtfsCounter, 789 mSDsluCounter, 1292 mSDsCounter, 0 mSdLazyCounter, 466 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 2131 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 466 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:56,058 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [802 Valid, 2131 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 466 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2025-03-03 14:12:56,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1723 states. [2025-03-03 14:12:56,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1723 to 1723. [2025-03-03 14:12:56,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1723 states, 1338 states have (on average 1.592675635276532) internal successors, (2131), 1367 states have internal predecessors, (2131), 285 states have call successors, (285), 103 states have call predecessors, (285), 99 states have return successors, (331), 268 states have call predecessors, (331), 281 states have call successors, (331) [2025-03-03 14:12:56,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1723 states to 1723 states and 2747 transitions. [2025-03-03 14:12:56,111 INFO L78 Accepts]: Start accepts. Automaton has 1723 states and 2747 transitions. Word has length 139 [2025-03-03 14:12:56,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:56,111 INFO L471 AbstractCegarLoop]: Abstraction has 1723 states and 2747 transitions. [2025-03-03 14:12:56,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (17), 2 states have call predecessors, (17), 3 states have return successors, (16), 2 states have call predecessors, (16), 2 states have call successors, (16) [2025-03-03 14:12:56,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1723 states and 2747 transitions. [2025-03-03 14:12:56,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-03 14:12:56,115 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:56,115 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:56,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-03 14:12:56,317 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:56,317 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:56,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:56,317 INFO L85 PathProgramCache]: Analyzing trace with hash -650008611, now seen corresponding path program 1 times [2025-03-03 14:12:56,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:56,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491519026] [2025-03-03 14:12:56,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:56,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:56,328 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-03 14:12:56,335 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-03 14:12:56,335 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:56,335 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:56,503 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-03 14:12:56,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491519026] [2025-03-03 14:12:56,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491519026] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:56,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [651507852] [2025-03-03 14:12:56,503 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:56,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:56,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:56,505 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:56,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-03 14:12:56,632 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-03 14:12:56,741 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-03 14:12:56,742 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:56,742 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:56,745 INFO L256 TraceCheckSpWp]: Trace formula consists of 1459 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-03 14:12:56,748 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:56,884 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-03 14:12:56,885 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:56,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [651507852] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:56,885 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:56,885 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-03 14:12:56,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064747982] [2025-03-03 14:12:56,885 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:56,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:12:56,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:56,886 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:12:56,887 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:12:56,890 INFO L87 Difference]: Start difference. First operand 1723 states and 2747 transitions. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2025-03-03 14:12:58,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:12:58,213 INFO L93 Difference]: Finished difference Result 3494 states and 5577 transitions. [2025-03-03 14:12:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:12:58,214 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) Word has length 142 [2025-03-03 14:12:58,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:12:58,224 INFO L225 Difference]: With dead ends: 3494 [2025-03-03 14:12:58,224 INFO L226 Difference]: Without dead ends: 1817 [2025-03-03 14:12:58,229 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:12:58,231 INFO L435 NwaCegarLoop]: 406 mSDtfsCounter, 2094 mSDsluCounter, 462 mSDsCounter, 0 mSdLazyCounter, 1766 mSolverCounterSat, 547 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2207 SdHoareTripleChecker+Valid, 868 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 547 IncrementalHoareTripleChecker+Valid, 1766 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2025-03-03 14:12:58,231 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2207 Valid, 868 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [547 Valid, 1766 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2025-03-03 14:12:58,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1817 states. [2025-03-03 14:12:58,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1817 to 1683. [2025-03-03 14:12:58,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1683 states, 1254 states have (on average 1.5542264752791068) internal successors, (1949), 1303 states have internal predecessors, (1949), 331 states have call successors, (331), 93 states have call predecessors, (331), 97 states have return successors, (377), 312 states have call predecessors, (377), 327 states have call successors, (377) [2025-03-03 14:12:58,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1683 states to 1683 states and 2657 transitions. [2025-03-03 14:12:58,327 INFO L78 Accepts]: Start accepts. Automaton has 1683 states and 2657 transitions. Word has length 142 [2025-03-03 14:12:58,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:12:58,328 INFO L471 AbstractCegarLoop]: Abstraction has 1683 states and 2657 transitions. [2025-03-03 14:12:58,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 6 states have call successors, (18), 5 states have call predecessors, (18), 5 states have return successors, (17), 6 states have call predecessors, (17), 6 states have call successors, (17) [2025-03-03 14:12:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 1683 states and 2657 transitions. [2025-03-03 14:12:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-03-03 14:12:58,332 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:12:58,332 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:12:58,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-03-03 14:12:58,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:58,533 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:12:58,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:12:58,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1020504958, now seen corresponding path program 1 times [2025-03-03 14:12:58,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:12:58,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75219064] [2025-03-03 14:12:58,533 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:58,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:12:58,548 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-03 14:12:58,560 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-03 14:12:58,560 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:58,560 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:58,780 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-03 14:12:58,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:12:58,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75219064] [2025-03-03 14:12:58,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75219064] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:12:58,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [924827427] [2025-03-03 14:12:58,781 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:12:58,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:12:58,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:12:58,783 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:12:58,784 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-03 14:12:58,889 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-03-03 14:12:58,993 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-03-03 14:12:58,993 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:12:58,993 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:12:58,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 1462 conjuncts, 17 conjuncts are in the unsatisfiable core [2025-03-03 14:12:59,002 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:12:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:12:59,098 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:12:59,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [924827427] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:12:59,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:12:59,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-03 14:12:59,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938058697] [2025-03-03 14:12:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:12:59,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:12:59,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:12:59,100 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:12:59,100 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:12:59,103 INFO L87 Difference]: Start difference. First operand 1683 states and 2657 transitions. Second operand has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-03 14:13:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:02,085 INFO L93 Difference]: Finished difference Result 7186 states and 11668 transitions. [2025-03-03 14:13:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-03-03 14:13:02,086 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) Word has length 142 [2025-03-03 14:13:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:02,112 INFO L225 Difference]: With dead ends: 7186 [2025-03-03 14:13:02,112 INFO L226 Difference]: Without dead ends: 5548 [2025-03-03 14:13:02,119 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=100, Invalid=656, Unknown=0, NotChecked=0, Total=756 [2025-03-03 14:13:02,121 INFO L435 NwaCegarLoop]: 607 mSDtfsCounter, 2697 mSDsluCounter, 1711 mSDsCounter, 0 mSdLazyCounter, 6052 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2804 SdHoareTripleChecker+Valid, 2318 SdHoareTripleChecker+Invalid, 6750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 6052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:02,121 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2804 Valid, 2318 Invalid, 6750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 6052 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2025-03-03 14:13:02,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5548 states. [2025-03-03 14:13:02,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5548 to 5144. [2025-03-03 14:13:02,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5144 states, 3817 states have (on average 1.5501702908042965) internal successors, (5917), 3971 states have internal predecessors, (5917), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 310 states have return successors, (1360), 988 states have call predecessors, (1360), 1008 states have call successors, (1360) [2025-03-03 14:13:02,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5144 states to 5144 states and 8293 transitions. [2025-03-03 14:13:02,319 INFO L78 Accepts]: Start accepts. Automaton has 5144 states and 8293 transitions. Word has length 142 [2025-03-03 14:13:02,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:02,319 INFO L471 AbstractCegarLoop]: Abstraction has 5144 states and 8293 transitions. [2025-03-03 14:13:02,320 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.571428571428571) internal successors, (95), 7 states have internal predecessors, (95), 4 states have call successors, (17), 4 states have call predecessors, (17), 5 states have return successors, (16), 5 states have call predecessors, (16), 4 states have call successors, (16) [2025-03-03 14:13:02,320 INFO L276 IsEmpty]: Start isEmpty. Operand 5144 states and 8293 transitions. [2025-03-03 14:13:02,325 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-03 14:13:02,325 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:02,326 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:02,334 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:02,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:02,527 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:02,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:02,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1864279335, now seen corresponding path program 1 times [2025-03-03 14:13:02,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:02,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313685427] [2025-03-03 14:13:02,527 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:02,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:02,561 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-03 14:13:02,568 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-03 14:13:02,569 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:02,569 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:02,736 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-03 14:13:02,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:02,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313685427] [2025-03-03 14:13:02,737 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313685427] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:02,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [678134586] [2025-03-03 14:13:02,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:02,737 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:02,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:02,739 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:02,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-03 14:13:02,849 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-03 14:13:02,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-03 14:13:02,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:02,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:02,947 INFO L256 TraceCheckSpWp]: Trace formula consists of 1479 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-03-03 14:13:02,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:02,964 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:13:02,965 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:02,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [678134586] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:02,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:02,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 11 [2025-03-03 14:13:02,965 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480212871] [2025-03-03 14:13:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:02,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-03 14:13:02,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:02,967 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-03 14:13:02,967 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:13:02,967 INFO L87 Difference]: Start difference. First operand 5144 states and 8293 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-03 14:13:03,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:03,160 INFO L93 Difference]: Finished difference Result 12035 states and 19613 transitions. [2025-03-03 14:13:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-03 14:13:03,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-03 14:13:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:03,197 INFO L225 Difference]: With dead ends: 12035 [2025-03-03 14:13:03,197 INFO L226 Difference]: Without dead ends: 6940 [2025-03-03 14:13:03,214 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:13:03,215 INFO L435 NwaCegarLoop]: 1663 mSDtfsCounter, 830 mSDsluCounter, 860 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 830 SdHoareTripleChecker+Valid, 2523 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:03,215 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [830 Valid, 2523 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:03,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6940 states. [2025-03-03 14:13:03,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6940 to 5138. [2025-03-03 14:13:03,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 3813 states have (on average 1.5496984002098086) internal successors, (5909), 3965 states have internal predecessors, (5909), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 308 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:03,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 8261 transitions. [2025-03-03 14:13:03,466 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 8261 transitions. Word has length 147 [2025-03-03 14:13:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:03,467 INFO L471 AbstractCegarLoop]: Abstraction has 5138 states and 8261 transitions. [2025-03-03 14:13:03,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (17), 2 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-03 14:13:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 8261 transitions. [2025-03-03 14:13:03,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2025-03-03 14:13:03,471 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:03,471 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:03,479 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:03,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2025-03-03 14:13:03,672 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:03,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:03,673 INFO L85 PathProgramCache]: Analyzing trace with hash -2100922200, now seen corresponding path program 1 times [2025-03-03 14:13:03,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:03,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943375190] [2025-03-03 14:13:03,673 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:03,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:03,689 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-03 14:13:03,696 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-03 14:13:03,696 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:03,696 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:03,887 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2025-03-03 14:13:03,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943375190] [2025-03-03 14:13:03,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [943375190] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:03,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1983367500] [2025-03-03 14:13:03,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:03,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:03,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:03,890 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:03,891 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-03 14:13:03,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 147 statements into 1 equivalence classes. [2025-03-03 14:13:04,102 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 147 of 147 statements. [2025-03-03 14:13:04,102 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:04,102 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:04,106 INFO L256 TraceCheckSpWp]: Trace formula consists of 1478 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-03-03 14:13:04,109 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-03-03 14:13:04,202 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:04,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1983367500] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:04,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:04,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [10] total 14 [2025-03-03 14:13:04,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004778078] [2025-03-03 14:13:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:04,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-03 14:13:04,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:04,203 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-03 14:13:04,203 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2025-03-03 14:13:04,203 INFO L87 Difference]: Start difference. First operand 5138 states and 8261 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-03 14:13:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:04,457 INFO L93 Difference]: Finished difference Result 5140 states and 8262 transitions. [2025-03-03 14:13:04,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-03 14:13:04,458 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) Word has length 147 [2025-03-03 14:13:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:04,480 INFO L225 Difference]: With dead ends: 5140 [2025-03-03 14:13:04,480 INFO L226 Difference]: Without dead ends: 5138 [2025-03-03 14:13:04,483 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=206, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:13:04,484 INFO L435 NwaCegarLoop]: 966 mSDtfsCounter, 391 mSDsluCounter, 2886 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 393 SdHoareTripleChecker+Valid, 3852 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:04,484 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [393 Valid, 3852 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:04,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2025-03-03 14:13:04,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 5138. [2025-03-03 14:13:04,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 3813 states have (on average 1.5431418830317336) internal successors, (5884), 3965 states have internal predecessors, (5884), 1016 states have call successors, (1016), 261 states have call predecessors, (1016), 308 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:04,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 8236 transitions. [2025-03-03 14:13:04,656 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 8236 transitions. Word has length 147 [2025-03-03 14:13:04,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:04,658 INFO L471 AbstractCegarLoop]: Abstraction has 5138 states and 8236 transitions. [2025-03-03 14:13:04,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (18), 2 states have call predecessors, (18), 3 states have return successors, (17), 3 states have call predecessors, (17), 2 states have call successors, (17) [2025-03-03 14:13:04,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 8236 transitions. [2025-03-03 14:13:04,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2025-03-03 14:13:04,662 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:04,662 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:04,670 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:04,862 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2025-03-03 14:13:04,863 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:04,863 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:04,863 INFO L85 PathProgramCache]: Analyzing trace with hash -1362549191, now seen corresponding path program 1 times [2025-03-03 14:13:04,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:04,863 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41613369] [2025-03-03 14:13:04,863 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:04,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:04,876 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-03 14:13:04,881 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-03 14:13:04,881 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:04,882 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:05,063 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-03-03 14:13:05,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:05,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41613369] [2025-03-03 14:13:05,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41613369] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:05,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67465378] [2025-03-03 14:13:05,064 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:05,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:05,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:05,066 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:05,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-03-03 14:13:05,176 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-03-03 14:13:05,272 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-03-03 14:13:05,272 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:05,272 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:05,275 INFO L256 TraceCheckSpWp]: Trace formula consists of 1570 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:05,278 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:05,299 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 63 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2025-03-03 14:13:05,299 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:05,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67465378] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:05,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:05,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:05,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596036156] [2025-03-03 14:13:05,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:05,301 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:05,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:05,301 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:05,301 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:05,301 INFO L87 Difference]: Start difference. First operand 5138 states and 8236 transitions. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:05,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:05,536 INFO L93 Difference]: Finished difference Result 10501 states and 17082 transitions. [2025-03-03 14:13:05,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:05,536 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 170 [2025-03-03 14:13:05,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:05,564 INFO L225 Difference]: With dead ends: 10501 [2025-03-03 14:13:05,564 INFO L226 Difference]: Without dead ends: 5408 [2025-03-03 14:13:05,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:05,584 INFO L435 NwaCegarLoop]: 806 mSDtfsCounter, 144 mSDsluCounter, 1589 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 2395 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:05,584 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 2395 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:05,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5408 states. [2025-03-03 14:13:05,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5408 to 5372. [2025-03-03 14:13:05,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5372 states, 4041 states have (on average 1.5644642415243752) internal successors, (6322), 4193 states have internal predecessors, (6322), 1016 states have call successors, (1016), 267 states have call predecessors, (1016), 314 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:05,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5372 states to 5372 states and 8674 transitions. [2025-03-03 14:13:05,791 INFO L78 Accepts]: Start accepts. Automaton has 5372 states and 8674 transitions. Word has length 170 [2025-03-03 14:13:05,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:05,791 INFO L471 AbstractCegarLoop]: Abstraction has 5372 states and 8674 transitions. [2025-03-03 14:13:05,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:05,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5372 states and 8674 transitions. [2025-03-03 14:13:05,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2025-03-03 14:13:05,797 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:05,797 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:05,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:05,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-03-03 14:13:05,998 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:05,999 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:05,999 INFO L85 PathProgramCache]: Analyzing trace with hash -2025805092, now seen corresponding path program 1 times [2025-03-03 14:13:06,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:06,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76663525] [2025-03-03 14:13:06,000 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:06,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:06,010 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-03 14:13:06,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-03 14:13:06,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:06,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:06,175 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-03 14:13:06,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76663525] [2025-03-03 14:13:06,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76663525] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:06,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [443232222] [2025-03-03 14:13:06,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:06,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:06,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:06,178 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:06,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-03-03 14:13:06,292 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 175 statements into 1 equivalence classes. [2025-03-03 14:13:06,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 175 of 175 statements. [2025-03-03 14:13:06,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:06,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:06,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 1575 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:06,432 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:06,456 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2025-03-03 14:13:06,456 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:06,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [443232222] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:06,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:06,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:06,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652656898] [2025-03-03 14:13:06,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:06,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:06,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:06,457 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:06,457 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:06,458 INFO L87 Difference]: Start difference. First operand 5372 states and 8674 transitions. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:06,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:06,801 INFO L93 Difference]: Finished difference Result 10987 states and 17958 transitions. [2025-03-03 14:13:06,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:06,805 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 175 [2025-03-03 14:13:06,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:06,839 INFO L225 Difference]: With dead ends: 10987 [2025-03-03 14:13:06,839 INFO L226 Difference]: Without dead ends: 5660 [2025-03-03 14:13:06,864 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:06,864 INFO L435 NwaCegarLoop]: 805 mSDtfsCounter, 142 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:06,864 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 2392 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:06,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5660 states. [2025-03-03 14:13:07,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5660 to 5606. [2025-03-03 14:13:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5606 states, 4269 states have (on average 1.5835090185055047) internal successors, (6760), 4421 states have internal predecessors, (6760), 1016 states have call successors, (1016), 273 states have call predecessors, (1016), 320 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5606 states to 5606 states and 9112 transitions. [2025-03-03 14:13:07,126 INFO L78 Accepts]: Start accepts. Automaton has 5606 states and 9112 transitions. Word has length 175 [2025-03-03 14:13:07,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:07,127 INFO L471 AbstractCegarLoop]: Abstraction has 5606 states and 9112 transitions. [2025-03-03 14:13:07,128 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:07,128 INFO L276 IsEmpty]: Start isEmpty. Operand 5606 states and 9112 transitions. [2025-03-03 14:13:07,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2025-03-03 14:13:07,133 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:07,133 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:07,145 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2025-03-03 14:13:07,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2025-03-03 14:13:07,335 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:07,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:07,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1040139332, now seen corresponding path program 1 times [2025-03-03 14:13:07,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:07,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634611417] [2025-03-03 14:13:07,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:07,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:07,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-03 14:13:07,353 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-03 14:13:07,354 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:07,354 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:07,560 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2025-03-03 14:13:07,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634611417] [2025-03-03 14:13:07,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634611417] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:07,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1223888312] [2025-03-03 14:13:07,560 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:07,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:07,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:07,562 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:07,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-03-03 14:13:07,684 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 179 statements into 1 equivalence classes. [2025-03-03 14:13:07,790 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 179 of 179 statements. [2025-03-03 14:13:07,790 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:07,790 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:07,794 INFO L256 TraceCheckSpWp]: Trace formula consists of 1579 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:07,797 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:07,825 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2025-03-03 14:13:07,826 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:07,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1223888312] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:07,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:07,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:07,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115501010] [2025-03-03 14:13:07,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:07,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:07,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:07,827 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:07,827 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:07,827 INFO L87 Difference]: Start difference. First operand 5606 states and 9112 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:08,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:08,079 INFO L93 Difference]: Finished difference Result 11473 states and 18834 transitions. [2025-03-03 14:13:08,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:08,080 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 179 [2025-03-03 14:13:08,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:08,110 INFO L225 Difference]: With dead ends: 11473 [2025-03-03 14:13:08,110 INFO L226 Difference]: Without dead ends: 5912 [2025-03-03 14:13:08,130 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:08,131 INFO L435 NwaCegarLoop]: 804 mSDtfsCounter, 140 mSDsluCounter, 1585 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 140 SdHoareTripleChecker+Valid, 2389 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:08,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [140 Valid, 2389 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:08,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5912 states. [2025-03-03 14:13:08,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5912 to 5840. [2025-03-03 14:13:08,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5840 states, 4497 states have (on average 1.6006226373137646) internal successors, (7198), 4649 states have internal predecessors, (7198), 1016 states have call successors, (1016), 279 states have call predecessors, (1016), 326 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:08,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5840 states to 5840 states and 9550 transitions. [2025-03-03 14:13:08,322 INFO L78 Accepts]: Start accepts. Automaton has 5840 states and 9550 transitions. Word has length 179 [2025-03-03 14:13:08,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:08,323 INFO L471 AbstractCegarLoop]: Abstraction has 5840 states and 9550 transitions. [2025-03-03 14:13:08,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:08,323 INFO L276 IsEmpty]: Start isEmpty. Operand 5840 states and 9550 transitions. [2025-03-03 14:13:08,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2025-03-03 14:13:08,328 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:08,328 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:08,337 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-03-03 14:13:08,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-03-03 14:13:08,528 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:08,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:08,529 INFO L85 PathProgramCache]: Analyzing trace with hash 1013830167, now seen corresponding path program 1 times [2025-03-03 14:13:08,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:08,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614459472] [2025-03-03 14:13:08,529 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:08,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:08,544 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-03 14:13:08,550 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-03 14:13:08,551 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:08,551 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:08,755 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2025-03-03 14:13:08,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:08,755 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614459472] [2025-03-03 14:13:08,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614459472] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:08,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348410008] [2025-03-03 14:13:08,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:08,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:08,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:08,758 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:08,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-03-03 14:13:08,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 182 statements into 1 equivalence classes. [2025-03-03 14:13:08,982 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 182 of 182 statements. [2025-03-03 14:13:08,982 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:08,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:08,987 INFO L256 TraceCheckSpWp]: Trace formula consists of 1582 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:08,989 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:09,015 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-03-03 14:13:09,015 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:09,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348410008] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:09,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:09,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:09,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369123740] [2025-03-03 14:13:09,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:09,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:09,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:09,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:09,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:09,016 INFO L87 Difference]: Start difference. First operand 5840 states and 9550 transitions. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:09,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:09,271 INFO L93 Difference]: Finished difference Result 11959 states and 19710 transitions. [2025-03-03 14:13:09,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:09,271 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 182 [2025-03-03 14:13:09,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:09,304 INFO L225 Difference]: With dead ends: 11959 [2025-03-03 14:13:09,304 INFO L226 Difference]: Without dead ends: 6164 [2025-03-03 14:13:09,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:09,325 INFO L435 NwaCegarLoop]: 803 mSDtfsCounter, 138 mSDsluCounter, 1583 mSDsCounter, 0 mSdLazyCounter, 175 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2386 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:09,325 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2386 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 175 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:09,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6164 states. [2025-03-03 14:13:09,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6164 to 6074. [2025-03-03 14:13:09,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6074 states, 4725 states have (on average 1.616084656084656) internal successors, (7636), 4877 states have internal predecessors, (7636), 1016 states have call successors, (1016), 285 states have call predecessors, (1016), 332 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:09,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6074 states to 6074 states and 9988 transitions. [2025-03-03 14:13:09,517 INFO L78 Accepts]: Start accepts. Automaton has 6074 states and 9988 transitions. Word has length 182 [2025-03-03 14:13:09,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:09,518 INFO L471 AbstractCegarLoop]: Abstraction has 6074 states and 9988 transitions. [2025-03-03 14:13:09,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:09,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6074 states and 9988 transitions. [2025-03-03 14:13:09,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-03 14:13:09,557 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:09,558 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:09,567 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2025-03-03 14:13:09,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-03-03 14:13:09,758 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:09,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:09,759 INFO L85 PathProgramCache]: Analyzing trace with hash -2080455519, now seen corresponding path program 1 times [2025-03-03 14:13:09,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:09,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418035210] [2025-03-03 14:13:09,759 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:09,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:09,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-03 14:13:09,778 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-03 14:13:09,779 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:09,779 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:09,953 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2025-03-03 14:13:09,953 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:09,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418035210] [2025-03-03 14:13:09,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418035210] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:09,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1511682657] [2025-03-03 14:13:09,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:09,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:09,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:09,956 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:09,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-03-03 14:13:10,082 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-03 14:13:10,199 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-03 14:13:10,199 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:10,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:10,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 1584 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:10,210 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:10,241 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-03-03 14:13:10,241 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:10,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1511682657] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:10,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:10,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:10,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280067840] [2025-03-03 14:13:10,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:10,243 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:10,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:10,244 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:10,244 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:10,244 INFO L87 Difference]: Start difference. First operand 6074 states and 9988 transitions. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:10,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:10,520 INFO L93 Difference]: Finished difference Result 12445 states and 20586 transitions. [2025-03-03 14:13:10,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:10,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 184 [2025-03-03 14:13:10,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:10,551 INFO L225 Difference]: With dead ends: 12445 [2025-03-03 14:13:10,551 INFO L226 Difference]: Without dead ends: 6416 [2025-03-03 14:13:10,571 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:10,572 INFO L435 NwaCegarLoop]: 801 mSDtfsCounter, 136 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 172 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2379 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:10,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2379 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2025-03-03 14:13:10,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 6308. [2025-03-03 14:13:10,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6308 states, 4953 states have (on average 1.6301231576822128) internal successors, (8074), 5105 states have internal predecessors, (8074), 1016 states have call successors, (1016), 291 states have call predecessors, (1016), 338 states have return successors, (1336), 988 states have call predecessors, (1336), 1008 states have call successors, (1336) [2025-03-03 14:13:10,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6308 states to 6308 states and 10426 transitions. [2025-03-03 14:13:10,912 INFO L78 Accepts]: Start accepts. Automaton has 6308 states and 10426 transitions. Word has length 184 [2025-03-03 14:13:10,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:10,913 INFO L471 AbstractCegarLoop]: Abstraction has 6308 states and 10426 transitions. [2025-03-03 14:13:10,913 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 2 states have call successors, (20), 2 states have call predecessors, (20), 3 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2025-03-03 14:13:10,913 INFO L276 IsEmpty]: Start isEmpty. Operand 6308 states and 10426 transitions. [2025-03-03 14:13:10,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2025-03-03 14:13:10,920 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:10,921 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:10,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2025-03-03 14:13:11,125 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:11,125 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:11,126 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:11,126 INFO L85 PathProgramCache]: Analyzing trace with hash 1860737989, now seen corresponding path program 1 times [2025-03-03 14:13:11,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:11,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092369047] [2025-03-03 14:13:11,126 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:11,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:11,142 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-03 14:13:11,151 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-03 14:13:11,151 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:11,151 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:11,398 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2025-03-03 14:13:11,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:11,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1092369047] [2025-03-03 14:13:11,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1092369047] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:11,399 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776822980] [2025-03-03 14:13:11,399 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:11,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:11,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:11,401 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:11,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-03-03 14:13:11,538 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 184 statements into 1 equivalence classes. [2025-03-03 14:13:11,657 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 184 of 184 statements. [2025-03-03 14:13:11,657 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:11,657 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:11,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 1581 conjuncts, 37 conjuncts are in the unsatisfiable core [2025-03-03 14:13:11,665 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:11,791 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2025-03-03 14:13:11,792 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:11,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776822980] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:11,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:11,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 15 [2025-03-03 14:13:11,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94223291] [2025-03-03 14:13:11,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:11,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-03-03 14:13:11,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:11,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-03-03 14:13:11,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:13:11,793 INFO L87 Difference]: Start difference. First operand 6308 states and 10426 transitions. Second operand has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-03 14:13:13,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:13,895 INFO L93 Difference]: Finished difference Result 19680 states and 33094 transitions. [2025-03-03 14:13:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-03-03 14:13:13,895 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) Word has length 184 [2025-03-03 14:13:13,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:13,956 INFO L225 Difference]: With dead ends: 19680 [2025-03-03 14:13:13,956 INFO L226 Difference]: Without dead ends: 10406 [2025-03-03 14:13:13,992 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=426, Unknown=0, NotChecked=0, Total=506 [2025-03-03 14:13:13,992 INFO L435 NwaCegarLoop]: 370 mSDtfsCounter, 1963 mSDsluCounter, 1918 mSDsCounter, 0 mSdLazyCounter, 4044 mSolverCounterSat, 494 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2069 SdHoareTripleChecker+Valid, 2288 SdHoareTripleChecker+Invalid, 4538 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 494 IncrementalHoareTripleChecker+Valid, 4044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:13,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2069 Valid, 2288 Invalid, 4538 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [494 Valid, 4044 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2025-03-03 14:13:13,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10406 states. [2025-03-03 14:13:14,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10406 to 10325. [2025-03-03 14:13:14,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10325 states, 8004 states have (on average 1.6255622188905547) internal successors, (13011), 8311 states have internal predecessors, (13011), 1724 states have call successors, (1724), 465 states have call predecessors, (1724), 596 states have return successors, (2347), 1696 states have call predecessors, (2347), 1716 states have call successors, (2347) [2025-03-03 14:13:14,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10325 states to 10325 states and 17082 transitions. [2025-03-03 14:13:14,415 INFO L78 Accepts]: Start accepts. Automaton has 10325 states and 17082 transitions. Word has length 184 [2025-03-03 14:13:14,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:14,415 INFO L471 AbstractCegarLoop]: Abstraction has 10325 states and 17082 transitions. [2025-03-03 14:13:14,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 13.88888888888889) internal successors, (125), 7 states have internal predecessors, (125), 4 states have call successors, (20), 4 states have call predecessors, (20), 6 states have return successors, (19), 6 states have call predecessors, (19), 4 states have call successors, (19) [2025-03-03 14:13:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 10325 states and 17082 transitions. [2025-03-03 14:13:14,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2025-03-03 14:13:14,424 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:14,424 INFO L218 NwaCegarLoop]: trace histogram [6, 6, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:14,432 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:14,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:14,625 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:14,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:14,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1381867674, now seen corresponding path program 1 times [2025-03-03 14:13:14,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:14,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513602385] [2025-03-03 14:13:14,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:14,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:14,636 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 187 statements into 1 equivalence classes. [2025-03-03 14:13:14,641 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 187 of 187 statements. [2025-03-03 14:13:14,641 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:14,641 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:14,730 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2025-03-03 14:13:14,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:14,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513602385] [2025-03-03 14:13:14,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513602385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:14,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-03 14:13:14,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2025-03-03 14:13:14,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450704008] [2025-03-03 14:13:14,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:14,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 14:13:14,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:14,731 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 14:13:14,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-03-03 14:13:14,732 INFO L87 Difference]: Start difference. First operand 10325 states and 17082 transitions. Second operand has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-03 14:13:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:15,078 INFO L93 Difference]: Finished difference Result 20347 states and 33675 transitions. [2025-03-03 14:13:15,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-03 14:13:15,079 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 187 [2025-03-03 14:13:15,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:15,130 INFO L225 Difference]: With dead ends: 20347 [2025-03-03 14:13:15,130 INFO L226 Difference]: Without dead ends: 9707 [2025-03-03 14:13:15,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-03-03 14:13:15,165 INFO L435 NwaCegarLoop]: 844 mSDtfsCounter, 33 mSDsluCounter, 5032 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 5876 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:15,165 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 5876 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:15,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9707 states. [2025-03-03 14:13:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9707 to 9683. [2025-03-03 14:13:15,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9683 states, 7597 states have (on average 1.6395945768066342) internal successors, (12456), 7879 states have internal predecessors, (12456), 1539 states have call successors, (1539), 441 states have call predecessors, (1539), 546 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2025-03-03 14:13:15,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9683 states to 9683 states and 15990 transitions. [2025-03-03 14:13:15,558 INFO L78 Accepts]: Start accepts. Automaton has 9683 states and 15990 transitions. Word has length 187 [2025-03-03 14:13:15,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:15,559 INFO L471 AbstractCegarLoop]: Abstraction has 9683 states and 15990 transitions. [2025-03-03 14:13:15,559 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (19), 2 states have call predecessors, (19), 4 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2025-03-03 14:13:15,559 INFO L276 IsEmpty]: Start isEmpty. Operand 9683 states and 15990 transitions. [2025-03-03 14:13:15,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2025-03-03 14:13:15,568 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:15,569 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:15,569 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2025-03-03 14:13:15,569 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:15,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:15,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1285188534, now seen corresponding path program 1 times [2025-03-03 14:13:15,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:15,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134184638] [2025-03-03 14:13:15,570 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:15,570 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:15,591 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-03 14:13:15,597 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-03 14:13:15,597 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:15,597 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:16,108 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:16,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:16,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134184638] [2025-03-03 14:13:16,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134184638] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:16,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47083389] [2025-03-03 14:13:16,109 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:16,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:16,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:16,111 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:16,112 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-03-03 14:13:16,313 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-03 14:13:16,572 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-03 14:13:16,572 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:16,572 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:16,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 3992 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:16,590 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:16,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 676 proven. 0 refuted. 0 times theorem prover too weak. 707 trivial. 0 not checked. [2025-03-03 14:13:16,614 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:16,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47083389] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:16,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:16,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:16,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498043634] [2025-03-03 14:13:16,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:16,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:16,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:16,616 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:16,616 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:16,616 INFO L87 Difference]: Start difference. First operand 9683 states and 15990 transitions. Second operand has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-03 14:13:16,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:16,972 INFO L93 Difference]: Finished difference Result 19414 states and 32362 transitions. [2025-03-03 14:13:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 526 [2025-03-03 14:13:16,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:17,015 INFO L225 Difference]: With dead ends: 19414 [2025-03-03 14:13:17,015 INFO L226 Difference]: Without dead ends: 9773 [2025-03-03 14:13:17,039 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:17,039 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 22 mSDsluCounter, 1672 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2520 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:17,039 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2520 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:17,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9773 states. [2025-03-03 14:13:17,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9773 to 9773. [2025-03-03 14:13:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9773 states, 7677 states have (on average 1.640745082714602) internal successors, (12596), 7959 states have internal predecessors, (12596), 1539 states have call successors, (1539), 451 states have call predecessors, (1539), 556 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2025-03-03 14:13:17,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9773 states to 9773 states and 16130 transitions. [2025-03-03 14:13:17,372 INFO L78 Accepts]: Start accepts. Automaton has 9773 states and 16130 transitions. Word has length 526 [2025-03-03 14:13:17,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:17,373 INFO L471 AbstractCegarLoop]: Abstraction has 9773 states and 16130 transitions. [2025-03-03 14:13:17,373 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.5) internal successors, (210), 4 states have internal predecessors, (210), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-03 14:13:17,374 INFO L276 IsEmpty]: Start isEmpty. Operand 9773 states and 16130 transitions. [2025-03-03 14:13:17,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-03 14:13:17,384 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:17,384 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:17,396 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-03-03 14:13:17,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:17,585 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:17,585 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:17,586 INFO L85 PathProgramCache]: Analyzing trace with hash 2017213697, now seen corresponding path program 1 times [2025-03-03 14:13:17,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:17,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472951812] [2025-03-03 14:13:17,586 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:17,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:17,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:17,687 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:17,688 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:17,688 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:18,157 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:18,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472951812] [2025-03-03 14:13:18,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472951812] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:18,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [289368977] [2025-03-03 14:13:18,158 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:18,158 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:18,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:18,160 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:18,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-03-03 14:13:18,336 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:18,610 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:18,611 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:18,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:18,622 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:18,628 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:18,654 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2025-03-03 14:13:18,654 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:18,654 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [289368977] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:18,654 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:18,654 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:18,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127435209] [2025-03-03 14:13:18,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:18,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:18,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:18,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:18,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:18,656 INFO L87 Difference]: Start difference. First operand 9773 states and 16130 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-03 14:13:19,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:19,161 INFO L93 Difference]: Finished difference Result 19594 states and 32602 transitions. [2025-03-03 14:13:19,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:19,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) Word has length 527 [2025-03-03 14:13:19,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:19,225 INFO L225 Difference]: With dead ends: 19594 [2025-03-03 14:13:19,225 INFO L226 Difference]: Without dead ends: 9863 [2025-03-03 14:13:19,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:19,266 INFO L435 NwaCegarLoop]: 846 mSDtfsCounter, 20 mSDsluCounter, 1668 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 2514 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:19,266 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 2514 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:19,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9863 states. [2025-03-03 14:13:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9863 to 9863. [2025-03-03 14:13:19,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9863 states, 7757 states have (on average 1.6418718576769369) internal successors, (12736), 8039 states have internal predecessors, (12736), 1539 states have call successors, (1539), 461 states have call predecessors, (1539), 566 states have return successors, (1995), 1490 states have call predecessors, (1995), 1531 states have call successors, (1995) [2025-03-03 14:13:19,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9863 states to 9863 states and 16270 transitions. [2025-03-03 14:13:19,664 INFO L78 Accepts]: Start accepts. Automaton has 9863 states and 16270 transitions. Word has length 527 [2025-03-03 14:13:19,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:19,665 INFO L471 AbstractCegarLoop]: Abstraction has 9863 states and 16270 transitions. [2025-03-03 14:13:19,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 2 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 2 states have call predecessors, (38), 2 states have call successors, (38) [2025-03-03 14:13:19,665 INFO L276 IsEmpty]: Start isEmpty. Operand 9863 states and 16270 transitions. [2025-03-03 14:13:19,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-03 14:13:19,673 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:19,673 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:19,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-03-03 14:13:19,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:19,874 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:19,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:19,875 INFO L85 PathProgramCache]: Analyzing trace with hash 59276801, now seen corresponding path program 1 times [2025-03-03 14:13:19,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:19,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931683936] [2025-03-03 14:13:19,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:19,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:19,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:19,913 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:19,913 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:19,913 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:20,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:20,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931683936] [2025-03-03 14:13:20,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931683936] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:20,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1496158507] [2025-03-03 14:13:20,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:20,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:20,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:20,341 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) [2025-03-03 14:13:20,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2025-03-03 14:13:20,519 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:20,794 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:20,795 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:20,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:20,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-03 14:13:20,818 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:20,849 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 680 proven. 0 refuted. 0 times theorem prover too weak. 703 trivial. 0 not checked. [2025-03-03 14:13:20,849 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:20,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1496158507] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:20,849 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:20,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:20,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356526490] [2025-03-03 14:13:20,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:20,850 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:20,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:20,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:20,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:20,851 INFO L87 Difference]: Start difference. First operand 9863 states and 16270 transitions. Second operand has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-03 14:13:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:21,140 INFO L93 Difference]: Finished difference Result 15081 states and 24976 transitions. [2025-03-03 14:13:21,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:21,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) Word has length 527 [2025-03-03 14:13:21,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:21,187 INFO L225 Difference]: With dead ends: 15081 [2025-03-03 14:13:21,187 INFO L226 Difference]: Without dead ends: 9923 [2025-03-03 14:13:21,208 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 543 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:21,208 INFO L435 NwaCegarLoop]: 849 mSDtfsCounter, 22 mSDsluCounter, 1684 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2533 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:21,208 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2533 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:21,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9923 states. [2025-03-03 14:13:21,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9923 to 9923. [2025-03-03 14:13:21,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9923 states, 7807 states have (on average 1.641603688997054) internal successors, (12816), 8089 states have internal predecessors, (12816), 1544 states have call successors, (1544), 466 states have call predecessors, (1544), 571 states have return successors, (2000), 1495 states have call predecessors, (2000), 1536 states have call successors, (2000) [2025-03-03 14:13:21,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9923 states to 9923 states and 16360 transitions. [2025-03-03 14:13:21,568 INFO L78 Accepts]: Start accepts. Automaton has 9923 states and 16360 transitions. Word has length 527 [2025-03-03 14:13:21,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:21,569 INFO L471 AbstractCegarLoop]: Abstraction has 9923 states and 16360 transitions. [2025-03-03 14:13:21,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.25) internal successors, (213), 4 states have internal predecessors, (213), 3 states have call successors, (39), 2 states have call predecessors, (39), 3 states have return successors, (38), 3 states have call predecessors, (38), 3 states have call successors, (38) [2025-03-03 14:13:21,569 INFO L276 IsEmpty]: Start isEmpty. Operand 9923 states and 16360 transitions. [2025-03-03 14:13:21,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2025-03-03 14:13:21,580 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:21,580 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:21,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2025-03-03 14:13:21,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:21,781 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:21,781 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:21,782 INFO L85 PathProgramCache]: Analyzing trace with hash -1834923478, now seen corresponding path program 1 times [2025-03-03 14:13:21,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:21,782 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766403006] [2025-03-03 14:13:21,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:21,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:21,811 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-03 14:13:21,818 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-03 14:13:21,819 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:21,819 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:22,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 27 proven. 144 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:22,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766403006] [2025-03-03 14:13:22,361 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766403006] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:22,361 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [956041789] [2025-03-03 14:13:22,361 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:22,361 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:22,361 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:22,363 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) [2025-03-03 14:13:22,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2025-03-03 14:13:22,555 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 526 statements into 1 equivalence classes. [2025-03-03 14:13:22,806 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 526 of 526 statements. [2025-03-03 14:13:22,806 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:22,806 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:22,819 INFO L256 TraceCheckSpWp]: Trace formula consists of 3992 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:13:22,826 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:22,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1383 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-03 14:13:22,882 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:22,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [956041789] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:22,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:22,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-03 14:13:22,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250218447] [2025-03-03 14:13:22,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:22,882 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:13:22,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:22,883 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:13:22,883 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:13:22,883 INFO L87 Difference]: Start difference. First operand 9923 states and 16360 transitions. Second operand has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:23,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:23,189 INFO L93 Difference]: Finished difference Result 16136 states and 26614 transitions. [2025-03-03 14:13:23,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:13:23,189 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 526 [2025-03-03 14:13:23,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:23,245 INFO L225 Difference]: With dead ends: 16136 [2025-03-03 14:13:23,245 INFO L226 Difference]: Without dead ends: 9915 [2025-03-03 14:13:23,270 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 542 GetRequests, 528 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:13:23,270 INFO L435 NwaCegarLoop]: 859 mSDtfsCounter, 23 mSDsluCounter, 4262 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:23,270 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5121 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9915 states. [2025-03-03 14:13:23,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9915 to 9915. [2025-03-03 14:13:23,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9915 states, 7799 states have (on average 1.641236055904603) internal successors, (12800), 8081 states have internal predecessors, (12800), 1544 states have call successors, (1544), 466 states have call predecessors, (1544), 571 states have return successors, (2000), 1495 states have call predecessors, (2000), 1536 states have call successors, (2000) [2025-03-03 14:13:23,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9915 states to 9915 states and 16344 transitions. [2025-03-03 14:13:23,587 INFO L78 Accepts]: Start accepts. Automaton has 9915 states and 16344 transitions. Word has length 526 [2025-03-03 14:13:23,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:23,588 INFO L471 AbstractCegarLoop]: Abstraction has 9915 states and 16344 transitions. [2025-03-03 14:13:23,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.666666666666668) internal successors, (166), 6 states have internal predecessors, (166), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:23,588 INFO L276 IsEmpty]: Start isEmpty. Operand 9915 states and 16344 transitions. [2025-03-03 14:13:23,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 528 [2025-03-03 14:13:23,596 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:23,597 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:23,607 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2025-03-03 14:13:23,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:23,797 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:23,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:23,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2100272387, now seen corresponding path program 1 times [2025-03-03 14:13:23,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:23,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801333874] [2025-03-03 14:13:23,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:23,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:23,817 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:23,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:23,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:23,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:24,212 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 27 proven. 146 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:24,212 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801333874] [2025-03-03 14:13:24,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801333874] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:24,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280741014] [2025-03-03 14:13:24,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:24,213 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:24,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:24,214 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:24,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2025-03-03 14:13:24,394 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 527 statements into 1 equivalence classes. [2025-03-03 14:13:24,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 527 of 527 statements. [2025-03-03 14:13:24,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:24,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:24,660 INFO L256 TraceCheckSpWp]: Trace formula consists of 3993 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:13:24,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:24,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1385 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-03 14:13:24,736 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:24,736 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [280741014] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:24,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:24,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-03 14:13:24,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706150631] [2025-03-03 14:13:24,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:24,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:13:24,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:24,737 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:13:24,738 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:13:24,738 INFO L87 Difference]: Start difference. First operand 9915 states and 16344 transitions. Second operand has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:25,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:25,008 INFO L93 Difference]: Finished difference Result 16128 states and 26598 transitions. [2025-03-03 14:13:25,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:13:25,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 527 [2025-03-03 14:13:25,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:25,062 INFO L225 Difference]: With dead ends: 16128 [2025-03-03 14:13:25,062 INFO L226 Difference]: Without dead ends: 9907 [2025-03-03 14:13:25,084 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 544 GetRequests, 530 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:13:25,085 INFO L435 NwaCegarLoop]: 850 mSDtfsCounter, 28 mSDsluCounter, 4217 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5067 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:25,085 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5067 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:25,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9907 states. [2025-03-03 14:13:25,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9907 to 9907. [2025-03-03 14:13:25,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9907 states, 7791 states have (on average 1.640739314593762) internal successors, (12783), 8073 states have internal predecessors, (12783), 1544 states have call successors, (1544), 466 states have call predecessors, (1544), 571 states have return successors, (2000), 1495 states have call predecessors, (2000), 1536 states have call successors, (2000) [2025-03-03 14:13:25,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9907 states to 9907 states and 16327 transitions. [2025-03-03 14:13:25,447 INFO L78 Accepts]: Start accepts. Automaton has 9907 states and 16327 transitions. Word has length 527 [2025-03-03 14:13:25,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:25,447 INFO L471 AbstractCegarLoop]: Abstraction has 9907 states and 16327 transitions. [2025-03-03 14:13:25,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 27.833333333333332) internal successors, (167), 6 states have internal predecessors, (167), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:25,448 INFO L276 IsEmpty]: Start isEmpty. Operand 9907 states and 16327 transitions. [2025-03-03 14:13:25,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 529 [2025-03-03 14:13:25,455 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:25,455 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:25,469 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2025-03-03 14:13:25,656 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2025-03-03 14:13:25,656 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:25,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:25,656 INFO L85 PathProgramCache]: Analyzing trace with hash -619123920, now seen corresponding path program 1 times [2025-03-03 14:13:25,656 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:25,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [375128773] [2025-03-03 14:13:25,656 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:25,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:25,675 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 528 statements into 1 equivalence classes. [2025-03-03 14:13:25,681 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 528 of 528 statements. [2025-03-03 14:13:25,681 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:25,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:26,037 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:26,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:26,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [375128773] [2025-03-03 14:13:26,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [375128773] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:26,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212934077] [2025-03-03 14:13:26,037 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:26,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:26,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:26,039 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:26,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2025-03-03 14:13:26,259 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 528 statements into 1 equivalence classes. [2025-03-03 14:13:26,523 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 528 of 528 statements. [2025-03-03 14:13:26,523 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:26,523 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:26,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 3994 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:13:26,543 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:26,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-03 14:13:26,620 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:26,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212934077] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:26,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:26,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-03 14:13:26,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607875895] [2025-03-03 14:13:26,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:26,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:13:26,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:26,622 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:13:26,623 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:13:26,623 INFO L87 Difference]: Start difference. First operand 9907 states and 16327 transitions. Second operand has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:27,090 INFO L93 Difference]: Finished difference Result 16120 states and 26581 transitions. [2025-03-03 14:13:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:13:27,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 528 [2025-03-03 14:13:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:27,149 INFO L225 Difference]: With dead ends: 16120 [2025-03-03 14:13:27,149 INFO L226 Difference]: Without dead ends: 9899 [2025-03-03 14:13:27,177 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 545 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:13:27,177 INFO L435 NwaCegarLoop]: 849 mSDtfsCounter, 26 mSDsluCounter, 4213 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 5062 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:27,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 5062 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:27,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9899 states. [2025-03-03 14:13:27,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9899 to 9899. [2025-03-03 14:13:27,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9899 states, 7783 states have (on average 1.6403700372606964) internal successors, (12767), 8065 states have internal predecessors, (12767), 1544 states have call successors, (1544), 466 states have call predecessors, (1544), 571 states have return successors, (2000), 1495 states have call predecessors, (2000), 1536 states have call successors, (2000) [2025-03-03 14:13:27,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9899 states to 9899 states and 16311 transitions. [2025-03-03 14:13:27,666 INFO L78 Accepts]: Start accepts. Automaton has 9899 states and 16311 transitions. Word has length 528 [2025-03-03 14:13:27,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:27,666 INFO L471 AbstractCegarLoop]: Abstraction has 9899 states and 16311 transitions. [2025-03-03 14:13:27,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.0) internal successors, (168), 6 states have internal predecessors, (168), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:27,666 INFO L276 IsEmpty]: Start isEmpty. Operand 9899 states and 16311 transitions. [2025-03-03 14:13:27,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2025-03-03 14:13:27,674 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:27,674 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:27,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2025-03-03 14:13:27,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2025-03-03 14:13:27,875 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:27,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:27,876 INFO L85 PathProgramCache]: Analyzing trace with hash 822519945, now seen corresponding path program 1 times [2025-03-03 14:13:27,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:27,876 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404881324] [2025-03-03 14:13:27,876 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:27,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:27,895 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-03 14:13:27,900 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-03 14:13:27,900 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:27,900 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:28,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:28,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404881324] [2025-03-03 14:13:28,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404881324] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:28,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272589737] [2025-03-03 14:13:28,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:28,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:28,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:28,311 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:28,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2025-03-03 14:13:28,500 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-03 14:13:28,739 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-03 14:13:28,739 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:28,739 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:28,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 3995 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-03-03 14:13:28,757 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:28,825 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 142 proven. 0 refuted. 0 times theorem prover too weak. 1242 trivial. 0 not checked. [2025-03-03 14:13:28,826 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:28,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272589737] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:28,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:28,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 15 [2025-03-03 14:13:28,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430612828] [2025-03-03 14:13:28,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:28,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-03-03 14:13:28,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:28,828 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-03-03 14:13:28,828 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2025-03-03 14:13:28,828 INFO L87 Difference]: Start difference. First operand 9899 states and 16311 transitions. Second operand has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:29,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:29,097 INFO L93 Difference]: Finished difference Result 16112 states and 26565 transitions. [2025-03-03 14:13:29,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:13:29,098 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 529 [2025-03-03 14:13:29,098 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:29,151 INFO L225 Difference]: With dead ends: 16112 [2025-03-03 14:13:29,151 INFO L226 Difference]: Without dead ends: 9891 [2025-03-03 14:13:29,173 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 546 GetRequests, 532 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=209, Unknown=0, NotChecked=0, Total=240 [2025-03-03 14:13:29,174 INFO L435 NwaCegarLoop]: 848 mSDtfsCounter, 23 mSDsluCounter, 4209 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 5057 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:29,174 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 5057 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:29,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9891 states. [2025-03-03 14:13:29,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9891 to 9891. [2025-03-03 14:13:29,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9891 states, 7775 states have (on average 1.64) internal successors, (12751), 8057 states have internal predecessors, (12751), 1544 states have call successors, (1544), 466 states have call predecessors, (1544), 571 states have return successors, (2000), 1495 states have call predecessors, (2000), 1536 states have call successors, (2000) [2025-03-03 14:13:29,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9891 states to 9891 states and 16295 transitions. [2025-03-03 14:13:29,474 INFO L78 Accepts]: Start accepts. Automaton has 9891 states and 16295 transitions. Word has length 529 [2025-03-03 14:13:29,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:29,474 INFO L471 AbstractCegarLoop]: Abstraction has 9891 states and 16295 transitions. [2025-03-03 14:13:29,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 28.166666666666668) internal successors, (169), 6 states have internal predecessors, (169), 3 states have call successors, (32), 2 states have call predecessors, (32), 4 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2025-03-03 14:13:29,475 INFO L276 IsEmpty]: Start isEmpty. Operand 9891 states and 16295 transitions. [2025-03-03 14:13:29,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2025-03-03 14:13:29,482 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:29,482 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:29,492 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2025-03-03 14:13:29,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2025-03-03 14:13:29,683 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:29,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:29,683 INFO L85 PathProgramCache]: Analyzing trace with hash -418751663, now seen corresponding path program 1 times [2025-03-03 14:13:29,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:29,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011986568] [2025-03-03 14:13:29,683 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:29,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:29,704 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-03 14:13:29,709 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-03 14:13:29,709 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:29,709 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:30,095 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1212 trivial. 0 not checked. [2025-03-03 14:13:30,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011986568] [2025-03-03 14:13:30,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011986568] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:30,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711942832] [2025-03-03 14:13:30,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:30,096 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:30,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:30,098 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:30,098 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2025-03-03 14:13:30,291 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 529 statements into 1 equivalence classes. [2025-03-03 14:13:30,532 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 529 of 529 statements. [2025-03-03 14:13:30,532 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:30,532 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:30,544 INFO L256 TraceCheckSpWp]: Trace formula consists of 3991 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-03 14:13:30,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 207 proven. 15 refuted. 0 times theorem prover too weak. 1162 trivial. 0 not checked. [2025-03-03 14:13:31,223 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:13:32,331 INFO L134 CoverageAnalysis]: Checked inductivity of 1384 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 1283 trivial. 0 not checked. [2025-03-03 14:13:32,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [711942832] provided 1 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:32,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-03-03 14:13:32,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10, 8] total 23 [2025-03-03 14:13:32,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1675909698] [2025-03-03 14:13:32,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:32,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-03-03 14:13:32,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:32,332 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-03-03 14:13:32,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=435, Unknown=0, NotChecked=0, Total=506 [2025-03-03 14:13:32,333 INFO L87 Difference]: Start difference. First operand 9891 states and 16295 transitions. Second operand has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-03 14:13:33,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:33,783 INFO L93 Difference]: Finished difference Result 16615 states and 27484 transitions. [2025-03-03 14:13:33,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-03-03 14:13:33,784 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) Word has length 529 [2025-03-03 14:13:33,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:33,846 INFO L225 Difference]: With dead ends: 16615 [2025-03-03 14:13:33,847 INFO L226 Difference]: Without dead ends: 12434 [2025-03-03 14:13:33,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1049 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=90, Invalid=560, Unknown=0, NotChecked=0, Total=650 [2025-03-03 14:13:33,867 INFO L435 NwaCegarLoop]: 923 mSDtfsCounter, 1668 mSDsluCounter, 1276 mSDsCounter, 0 mSdLazyCounter, 1949 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1684 SdHoareTripleChecker+Valid, 2199 SdHoareTripleChecker+Invalid, 2168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1949 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:33,867 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1684 Valid, 2199 Invalid, 2168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1949 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2025-03-03 14:13:33,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12434 states. [2025-03-03 14:13:34,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12434 to 12351. [2025-03-03 14:13:34,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12351 states, 9774 states have (on average 1.6432371598117455) internal successors, (16061), 10095 states have internal predecessors, (16061), 1887 states have call successors, (1887), 572 states have call predecessors, (1887), 689 states have return successors, (2446), 1793 states have call predecessors, (2446), 1877 states have call successors, (2446) [2025-03-03 14:13:34,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12351 states to 12351 states and 20394 transitions. [2025-03-03 14:13:34,306 INFO L78 Accepts]: Start accepts. Automaton has 12351 states and 20394 transitions. Word has length 529 [2025-03-03 14:13:34,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:34,307 INFO L471 AbstractCegarLoop]: Abstraction has 12351 states and 20394 transitions. [2025-03-03 14:13:34,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 21.875) internal successors, (175), 7 states have internal predecessors, (175), 6 states have call successors, (39), 3 states have call predecessors, (39), 4 states have return successors, (38), 7 states have call predecessors, (38), 6 states have call successors, (38) [2025-03-03 14:13:34,307 INFO L276 IsEmpty]: Start isEmpty. Operand 12351 states and 20394 transitions. [2025-03-03 14:13:34,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2025-03-03 14:13:34,317 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:34,317 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:34,328 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2025-03-03 14:13:34,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:34,517 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:34,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:34,518 INFO L85 PathProgramCache]: Analyzing trace with hash 213691945, now seen corresponding path program 1 times [2025-03-03 14:13:34,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:34,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1287830847] [2025-03-03 14:13:34,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:34,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:34,540 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-03 14:13:34,546 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-03 14:13:34,546 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:34,546 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:34,903 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-03 14:13:34,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:34,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1287830847] [2025-03-03 14:13:34,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1287830847] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:34,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004004104] [2025-03-03 14:13:34,903 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:34,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:34,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:34,905 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:34,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2025-03-03 14:13:35,106 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 545 statements into 1 equivalence classes. [2025-03-03 14:13:35,366 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 545 of 545 statements. [2025-03-03 14:13:35,366 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:35,366 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:35,378 INFO L256 TraceCheckSpWp]: Trace formula consists of 4206 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:35,385 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:35,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2025-03-03 14:13:35,414 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:35,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004004104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:35,414 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:35,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:35,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399988207] [2025-03-03 14:13:35,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:35,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:35,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:35,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:35,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:35,416 INFO L87 Difference]: Start difference. First operand 12351 states and 20394 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-03 14:13:35,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:35,901 INFO L93 Difference]: Finished difference Result 20633 states and 34466 transitions. [2025-03-03 14:13:35,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:35,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 545 [2025-03-03 14:13:35,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:35,961 INFO L225 Difference]: With dead ends: 20633 [2025-03-03 14:13:35,961 INFO L226 Difference]: Without dead ends: 12816 [2025-03-03 14:13:35,988 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 561 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:35,988 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 140 mSDsluCounter, 1564 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 2360 SdHoareTripleChecker+Invalid, 196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:35,988 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 2360 Invalid, 196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:35,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12816 states. [2025-03-03 14:13:36,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12816 to 12741. [2025-03-03 14:13:36,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12741 states, 10144 states have (on average 1.651813880126183) internal successors, (16756), 10465 states have internal predecessors, (16756), 1897 states have call successors, (1897), 582 states have call predecessors, (1897), 699 states have return successors, (2456), 1803 states have call predecessors, (2456), 1887 states have call successors, (2456) [2025-03-03 14:13:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12741 states to 12741 states and 21109 transitions. [2025-03-03 14:13:36,379 INFO L78 Accepts]: Start accepts. Automaton has 12741 states and 21109 transitions. Word has length 545 [2025-03-03 14:13:36,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:36,379 INFO L471 AbstractCegarLoop]: Abstraction has 12741 states and 21109 transitions. [2025-03-03 14:13:36,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-03 14:13:36,380 INFO L276 IsEmpty]: Start isEmpty. Operand 12741 states and 21109 transitions. [2025-03-03 14:13:36,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2025-03-03 14:13:36,389 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:36,390 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:36,400 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Ended with exit code 0 [2025-03-03 14:13:36,590 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2025-03-03 14:13:36,590 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:36,591 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:36,591 INFO L85 PathProgramCache]: Analyzing trace with hash 1524022222, now seen corresponding path program 1 times [2025-03-03 14:13:36,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:36,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1878293813] [2025-03-03 14:13:36,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:36,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:36,614 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-03 14:13:36,620 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-03 14:13:36,620 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:36,620 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:37,040 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-03 14:13:37,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:37,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1878293813] [2025-03-03 14:13:37,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1878293813] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:37,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [851991340] [2025-03-03 14:13:37,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:37,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:37,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:37,042 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:37,043 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2025-03-03 14:13:37,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 547 statements into 1 equivalence classes. [2025-03-03 14:13:37,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 547 of 547 statements. [2025-03-03 14:13:37,520 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:37,520 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:37,532 INFO L256 TraceCheckSpWp]: Trace formula consists of 4208 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:37,538 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:37,567 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2025-03-03 14:13:37,568 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:37,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [851991340] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:37,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:37,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:37,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69449078] [2025-03-03 14:13:37,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:37,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:37,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:37,569 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:37,569 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:37,569 INFO L87 Difference]: Start difference. First operand 12741 states and 21109 transitions. Second operand has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-03 14:13:38,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:38,034 INFO L93 Difference]: Finished difference Result 21398 states and 35786 transitions. [2025-03-03 14:13:38,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:38,035 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 547 [2025-03-03 14:13:38,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:38,102 INFO L225 Difference]: With dead ends: 21398 [2025-03-03 14:13:38,103 INFO L226 Difference]: Without dead ends: 13446 [2025-03-03 14:13:38,134 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 563 GetRequests, 552 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:38,135 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 138 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 2362 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:38,135 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 2362 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:38,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13446 states. [2025-03-03 14:13:38,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13446 to 13326. [2025-03-03 14:13:38,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13326 states, 10699 states have (on average 1.6647350219646695) internal successors, (17811), 11020 states have internal predecessors, (17811), 1912 states have call successors, (1912), 597 states have call predecessors, (1912), 714 states have return successors, (2471), 1818 states have call predecessors, (2471), 1902 states have call successors, (2471) [2025-03-03 14:13:38,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13326 states to 13326 states and 22194 transitions. [2025-03-03 14:13:38,545 INFO L78 Accepts]: Start accepts. Automaton has 13326 states and 22194 transitions. Word has length 547 [2025-03-03 14:13:38,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:38,545 INFO L471 AbstractCegarLoop]: Abstraction has 13326 states and 22194 transitions. [2025-03-03 14:13:38,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.75) internal successors, (207), 4 states have internal predecessors, (207), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-03 14:13:38,545 INFO L276 IsEmpty]: Start isEmpty. Operand 13326 states and 22194 transitions. [2025-03-03 14:13:38,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2025-03-03 14:13:38,607 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:38,607 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:38,619 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2025-03-03 14:13:38,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable40 [2025-03-03 14:13:38,808 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:38,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:38,809 INFO L85 PathProgramCache]: Analyzing trace with hash 1420546216, now seen corresponding path program 1 times [2025-03-03 14:13:38,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:38,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327173810] [2025-03-03 14:13:38,809 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:38,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:38,838 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-03-03 14:13:38,847 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-03-03 14:13:38,847 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:38,847 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:39,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-03 14:13:39,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:39,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327173810] [2025-03-03 14:13:39,407 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327173810] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:39,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095251864] [2025-03-03 14:13:39,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:39,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:39,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:39,410 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:39,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2025-03-03 14:13:39,624 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 548 statements into 1 equivalence classes. [2025-03-03 14:13:39,885 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 548 of 548 statements. [2025-03-03 14:13:39,886 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:39,886 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:39,896 INFO L256 TraceCheckSpWp]: Trace formula consists of 4209 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:13:39,902 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:39,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 975 trivial. 0 not checked. [2025-03-03 14:13:39,929 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:39,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095251864] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:39,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:39,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:39,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155397059] [2025-03-03 14:13:39,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:39,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:39,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:39,930 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:39,931 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:39,931 INFO L87 Difference]: Start difference. First operand 13326 states and 22194 transitions. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-03 14:13:40,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:40,365 INFO L93 Difference]: Finished difference Result 22408 states and 37581 transitions. [2025-03-03 14:13:40,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:40,365 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) Word has length 548 [2025-03-03 14:13:40,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:40,437 INFO L225 Difference]: With dead ends: 22408 [2025-03-03 14:13:40,437 INFO L226 Difference]: Without dead ends: 14076 [2025-03-03 14:13:40,469 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 564 GetRequests, 553 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:40,471 INFO L435 NwaCegarLoop]: 796 mSDtfsCounter, 135 mSDsluCounter, 1560 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:40,471 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [136 Valid, 2356 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-03-03 14:13:40,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14076 states. [2025-03-03 14:13:40,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14076 to 13911. [2025-03-03 14:13:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13911 states, 11254 states have (on average 1.6763817309401101) internal successors, (18866), 11575 states have internal predecessors, (18866), 1927 states have call successors, (1927), 612 states have call predecessors, (1927), 729 states have return successors, (2486), 1833 states have call predecessors, (2486), 1917 states have call successors, (2486) [2025-03-03 14:13:40,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13911 states to 13911 states and 23279 transitions. [2025-03-03 14:13:40,979 INFO L78 Accepts]: Start accepts. Automaton has 13911 states and 23279 transitions. Word has length 548 [2025-03-03 14:13:40,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:40,980 INFO L471 AbstractCegarLoop]: Abstraction has 13911 states and 23279 transitions. [2025-03-03 14:13:40,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37) [2025-03-03 14:13:40,980 INFO L276 IsEmpty]: Start isEmpty. Operand 13911 states and 23279 transitions. [2025-03-03 14:13:40,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 547 [2025-03-03 14:13:40,990 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:40,990 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:41,000 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2025-03-03 14:13:41,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable41 [2025-03-03 14:13:41,190 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:41,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:41,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1482088738, now seen corresponding path program 1 times [2025-03-03 14:13:41,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:41,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821928920] [2025-03-03 14:13:41,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:41,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:41,211 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 546 statements into 1 equivalence classes. [2025-03-03 14:13:41,216 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 546 of 546 statements. [2025-03-03 14:13:41,216 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:41,216 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:41,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-03 14:13:41,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821928920] [2025-03-03 14:13:41,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821928920] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:41,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [876023436] [2025-03-03 14:13:41,575 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:41,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:41,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:41,577 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:41,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2025-03-03 14:13:41,791 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 546 statements into 1 equivalence classes. [2025-03-03 14:13:42,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 546 of 546 statements. [2025-03-03 14:13:42,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:42,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:42,054 INFO L256 TraceCheckSpWp]: Trace formula consists of 4207 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-03 14:13:42,059 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 580 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2025-03-03 14:13:42,086 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:13:42,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [876023436] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:13:42,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:13:42,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 12 [2025-03-03 14:13:42,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1141419053] [2025-03-03 14:13:42,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:13:42,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:13:42,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:42,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:13:42,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2025-03-03 14:13:42,089 INFO L87 Difference]: Start difference. First operand 13911 states and 23279 transitions. Second operand has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-03 14:13:42,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:13:42,445 INFO L93 Difference]: Finished difference Result 22608 states and 37936 transitions. [2025-03-03 14:13:42,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-03 14:13:42,446 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 546 [2025-03-03 14:13:42,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:13:42,513 INFO L225 Difference]: With dead ends: 22608 [2025-03-03 14:13:42,513 INFO L226 Difference]: Without dead ends: 13971 [2025-03-03 14:13:42,542 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 562 GetRequests, 551 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2025-03-03 14:13:42,543 INFO L435 NwaCegarLoop]: 842 mSDtfsCounter, 22 mSDsluCounter, 1670 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 2512 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-03-03 14:13:42,543 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 2512 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-03-03 14:13:42,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13971 states. [2025-03-03 14:13:42,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13971 to 13971. [2025-03-03 14:13:42,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13971 states, 11304 states have (on average 1.6756015569709837) internal successors, (18941), 11625 states have internal predecessors, (18941), 1932 states have call successors, (1932), 617 states have call predecessors, (1932), 734 states have return successors, (2491), 1838 states have call predecessors, (2491), 1922 states have call successors, (2491) [2025-03-03 14:13:43,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13971 states to 13971 states and 23364 transitions. [2025-03-03 14:13:43,037 INFO L78 Accepts]: Start accepts. Automaton has 13971 states and 23364 transitions. Word has length 546 [2025-03-03 14:13:43,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:13:43,037 INFO L471 AbstractCegarLoop]: Abstraction has 13971 states and 23364 transitions. [2025-03-03 14:13:43,038 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 53.0) internal successors, (212), 4 states have internal predecessors, (212), 3 states have call successors, (40), 2 states have call predecessors, (40), 3 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2025-03-03 14:13:43,038 INFO L276 IsEmpty]: Start isEmpty. Operand 13971 states and 23364 transitions. [2025-03-03 14:13:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2025-03-03 14:13:43,048 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:13:43,048 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:13:43,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2025-03-03 14:13:43,248 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:43,248 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:13:43,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:13:43,249 INFO L85 PathProgramCache]: Analyzing trace with hash -616044659, now seen corresponding path program 1 times [2025-03-03 14:13:43,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:13:43,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007306688] [2025-03-03 14:13:43,249 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:43,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:13:43,269 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-03-03 14:13:43,275 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-03-03 14:13:43,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:43,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:43,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 27 proven. 145 refuted. 0 times theorem prover too weak. 1224 trivial. 0 not checked. [2025-03-03 14:13:43,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:13:43,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007306688] [2025-03-03 14:13:43,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007306688] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:13:43,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964383717] [2025-03-03 14:13:43,641 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:13:43,641 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:13:43,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:13:43,644 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:13:43,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2025-03-03 14:13:43,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 544 statements into 1 equivalence classes. [2025-03-03 14:13:44,148 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 544 of 544 statements. [2025-03-03 14:13:44,149 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:13:44,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:13:44,161 INFO L256 TraceCheckSpWp]: Trace formula consists of 4205 conjuncts, 26 conjuncts are in the unsatisfiable core [2025-03-03 14:13:44,167 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:13:44,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 120 proven. 84 refuted. 0 times theorem prover too weak. 1192 trivial. 0 not checked. [2025-03-03 14:13:44,801 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-03 14:13:45,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1396 backedges. 12 proven. 71 refuted. 0 times theorem prover too weak. 1313 trivial. 0 not checked. [2025-03-03 14:13:45,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [964383717] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-03 14:13:45,784 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-03 14:13:45,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 23 [2025-03-03 14:13:45,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438363483] [2025-03-03 14:13:45,785 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-03 14:13:45,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-03-03 14:13:45,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:13:45,786 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-03-03 14:13:45,786 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=433, Unknown=0, NotChecked=0, Total=506 [2025-03-03 14:13:45,787 INFO L87 Difference]: Start difference. First operand 13971 states and 23364 transitions. Second operand has 23 states, 23 states have (on average 21.0) internal successors, (483), 19 states have internal predecessors, (483), 14 states have call successors, (122), 9 states have call predecessors, (122), 15 states have return successors, (119), 18 states have call predecessors, (119), 14 states have call successors, (119) [2025-03-03 14:14:02,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-03 14:14:02,310 INFO L93 Difference]: Finished difference Result 86998 states and 151023 transitions. [2025-03-03 14:14:02,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2025-03-03 14:14:02,311 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 21.0) internal successors, (483), 19 states have internal predecessors, (483), 14 states have call successors, (122), 9 states have call predecessors, (122), 15 states have return successors, (119), 18 states have call predecessors, (119), 14 states have call successors, (119) Word has length 544 [2025-03-03 14:14:02,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-03 14:14:02,636 INFO L225 Difference]: With dead ends: 86998 [2025-03-03 14:14:02,636 INFO L226 Difference]: Without dead ends: 73030 [2025-03-03 14:14:02,743 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1264 GetRequests, 1125 SyntacticMatches, 2 SemanticMatches, 137 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6898 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=2983, Invalid=16199, Unknown=0, NotChecked=0, Total=19182 [2025-03-03 14:14:02,743 INFO L435 NwaCegarLoop]: 937 mSDtfsCounter, 19372 mSDsluCounter, 7591 mSDsCounter, 0 mSdLazyCounter, 28772 mSolverCounterSat, 6763 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19372 SdHoareTripleChecker+Valid, 8528 SdHoareTripleChecker+Invalid, 35535 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6763 IncrementalHoareTripleChecker+Valid, 28772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.3s IncrementalHoareTripleChecker+Time [2025-03-03 14:14:02,743 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19372 Valid, 8528 Invalid, 35535 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6763 Valid, 28772 Invalid, 0 Unknown, 0 Unchecked, 12.3s Time] [2025-03-03 14:14:02,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73030 states. [2025-03-03 14:14:05,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73030 to 67600. [2025-03-03 14:14:05,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 67600 states, 54585 states have (on average 1.6808280663185857) internal successors, (91748), 56460 states have internal predecessors, (91748), 9437 states have call successors, (9437), 2753 states have call predecessors, (9437), 3577 states have return successors, (14781), 9024 states have call predecessors, (14781), 9417 states have call successors, (14781) [2025-03-03 14:14:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67600 states to 67600 states and 115966 transitions. [2025-03-03 14:14:05,996 INFO L78 Accepts]: Start accepts. Automaton has 67600 states and 115966 transitions. Word has length 544 [2025-03-03 14:14:05,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-03 14:14:05,996 INFO L471 AbstractCegarLoop]: Abstraction has 67600 states and 115966 transitions. [2025-03-03 14:14:05,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 21.0) internal successors, (483), 19 states have internal predecessors, (483), 14 states have call successors, (122), 9 states have call predecessors, (122), 15 states have return successors, (119), 18 states have call predecessors, (119), 14 states have call successors, (119) [2025-03-03 14:14:05,997 INFO L276 IsEmpty]: Start isEmpty. Operand 67600 states and 115966 transitions. [2025-03-03 14:14:06,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 580 [2025-03-03 14:14:06,014 INFO L210 NwaCegarLoop]: Found error trace [2025-03-03 14:14:06,014 INFO L218 NwaCegarLoop]: trace histogram [18, 18, 15, 12, 10, 10, 9, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-03 14:14:06,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2025-03-03 14:14:06,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:14:06,215 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION === [timeShiftErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-03 14:14:06,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-03 14:14:06,215 INFO L85 PathProgramCache]: Analyzing trace with hash 220553702, now seen corresponding path program 1 times [2025-03-03 14:14:06,215 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-03 14:14:06,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461400862] [2025-03-03 14:14:06,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:14:06,215 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-03 14:14:06,242 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-03-03 14:14:06,249 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-03-03 14:14:06,249 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:14:06,249 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:14:06,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 29 proven. 139 refuted. 0 times theorem prover too weak. 1327 trivial. 0 not checked. [2025-03-03 14:14:06,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-03 14:14:06,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461400862] [2025-03-03 14:14:06,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [461400862] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-03 14:14:06,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078772302] [2025-03-03 14:14:06,886 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-03 14:14:06,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-03 14:14:06,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-03 14:14:06,888 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-03 14:14:06,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2025-03-03 14:14:07,118 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 579 statements into 1 equivalence classes. [2025-03-03 14:14:07,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 579 of 579 statements. [2025-03-03 14:14:07,378 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-03 14:14:07,378 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-03 14:14:07,391 INFO L256 TraceCheckSpWp]: Trace formula consists of 4303 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-03-03 14:14:07,396 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-03 14:14:07,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1495 backedges. 330 proven. 0 refuted. 0 times theorem prover too weak. 1165 trivial. 0 not checked. [2025-03-03 14:14:07,426 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-03 14:14:07,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078772302] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-03 14:14:07,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-03 14:14:07,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 11 [2025-03-03 14:14:07,426 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625059424] [2025-03-03 14:14:07,426 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-03 14:14:07,426 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-03 14:14:07,426 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-03 14:14:07,429 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-03 14:14:07,430 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2025-03-03 14:14:07,430 INFO L87 Difference]: Start difference. First operand 67600 states and 115966 transitions. Second operand has 4 states, 4 states have (on average 52.75) internal successors, (211), 4 states have internal predecessors, (211), 3 states have call successors, (38), 2 states have call predecessors, (38), 3 states have return successors, (37), 3 states have call predecessors, (37), 3 states have call successors, (37)