./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.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 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 07:00:45,032 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 07:00:45,081 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-03-08 07:00:45,084 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 07:00:45,085 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 07:00:45,107 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 07:00:45,107 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 07:00:45,107 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 07:00:45,107 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-08 07:00:45,107 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-08 07:00:45,108 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 07:00:45,108 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 07:00:45,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 07:00:45,108 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 07:00:45,109 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:00:45,109 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 07:00:45,109 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 07:00:45,111 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 07:00:45,111 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 07:00:45,111 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 07:00:45,111 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 -> 21d4f13e72175539cc78aacb8d1d416269d0755bd0c7a4b3f37d9d8805a7ca70 [2025-03-08 07:00:45,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 07:00:45,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 07:00:45,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 07:00:45,365 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 07:00:45,367 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 07:00:45,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2025-03-08 07:00:46,567 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e674b682/76cec05b026f497c8b564953ba9ee772/FLAG0120657cb [2025-03-08 07:00:47,223 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 07:00:47,224 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.13.cil-1.c [2025-03-08 07:00:47,277 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e674b682/76cec05b026f497c8b564953ba9ee772/FLAG0120657cb [2025-03-08 07:00:47,646 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e674b682/76cec05b026f497c8b564953ba9ee772 [2025-03-08 07:00:47,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 07:00:47,649 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 07:00:47,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 07:00:47,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 07:00:47,654 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 07:00:47,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:00:47" (1/1) ... [2025-03-08 07:00:47,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9507bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:47, skipping insertion in model container [2025-03-08 07:00:47,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 07:00:47" (1/1) ... [2025-03-08 07:00:47,827 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 07:00:48,968 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/combinations/Problem05_label49+token_ring.13.cil-1.c[380593,380606] [2025-03-08 07:00:48,995 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/combinations/Problem05_label49+token_ring.13.cil-1.c[383339,383352] [2025-03-08 07:00:49,236 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:00:49,244 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 07:00:49,730 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/combinations/Problem05_label49+token_ring.13.cil-1.c[380593,380606] [2025-03-08 07:00:49,735 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/combinations/Problem05_label49+token_ring.13.cil-1.c[383339,383352] [2025-03-08 07:00:49,751 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 07:00:49,795 INFO L204 MainTranslator]: Completed translation [2025-03-08 07:00:49,796 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49 WrapperNode [2025-03-08 07:00:49,796 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 07:00:49,797 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 07:00:49,797 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 07:00:49,797 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 07:00:49,801 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:49,859 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,256 INFO L138 Inliner]: procedures = 70, calls = 81, calls flagged for inlining = 47, calls inlined = 47, statements flattened = 13248 [2025-03-08 07:00:50,257 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 07:00:50,257 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 07:00:50,257 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 07:00:50,257 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 07:00:50,266 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,267 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,313 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,398 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-03-08 07:00:50,398 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,399 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,564 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,586 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,611 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,633 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,693 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 07:00:50,695 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 07:00:50,695 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 07:00:50,696 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 07:00:50,696 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (1/1) ... [2025-03-08 07:00:50,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 07:00:50,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 07:00:50,725 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 07:00:50,735 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 07:00:50,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 07:00:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-03-08 07:00:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-03-08 07:00:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-03-08 07:00:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-03-08 07:00:50,761 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-03-08 07:00:50,761 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-03-08 07:00:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure error [2025-03-08 07:00:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2025-03-08 07:00:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-03-08 07:00:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-03-08 07:00:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-03-08 07:00:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-03-08 07:00:50,762 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-03-08 07:00:50,762 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-03-08 07:00:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-08 07:00:50,763 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 07:00:50,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 07:00:50,878 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 07:00:50,881 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 07:00:57,178 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-03-08 07:00:57,179 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-03-08 07:00:57,179 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-03-08 07:00:57,179 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-03-08 07:00:57,180 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-03-08 07:00:57,180 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-03-08 07:00:57,180 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-03-08 07:00:57,442 INFO L? ?]: Removed 1765 outVars from TransFormulas that were not future-live. [2025-03-08 07:00:57,442 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 07:00:57,497 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 07:00:57,500 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 07:00:57,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:00:57 BoogieIcfgContainer [2025-03-08 07:00:57,501 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 07:00:57,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 07:00:57,504 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 07:00:57,508 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 07:00:57,508 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 07:00:47" (1/3) ... [2025-03-08 07:00:57,508 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7596b6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:00:57, skipping insertion in model container [2025-03-08 07:00:57,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 07:00:49" (2/3) ... [2025-03-08 07:00:57,509 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7596b6bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 07:00:57, skipping insertion in model container [2025-03-08 07:00:57,509 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 07:00:57" (3/3) ... [2025-03-08 07:00:57,510 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.13.cil-1.c [2025-03-08 07:00:57,522 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 07:00:57,525 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.13.cil-1.c that has 8 procedures, 2596 locations, 1 initial locations, 17 loop locations, and 2 error locations. [2025-03-08 07:00:57,633 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 07:00:57,645 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;@ca8eede, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 07:00:57,646 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-03-08 07:00:57,659 INFO L276 IsEmpty]: Start isEmpty. Operand has 2596 states, 2558 states have (on average 1.8354182955433933) internal successors, (4695), 2562 states have internal predecessors, (4695), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) [2025-03-08 07:00:57,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:00:57,676 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:00:57,678 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:00:57,679 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:00:57,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:00:57,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1595939358, now seen corresponding path program 1 times [2025-03-08 07:00:57,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:00:57,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542034583] [2025-03-08 07:00:57,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:00:57,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:00:57,789 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:00:57,835 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:00:57,839 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:00:57,840 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:00:58,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:00:58,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:00:58,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542034583] [2025-03-08 07:00:58,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542034583] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:00:58,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:00:58,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:00:58,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445104695] [2025-03-08 07:00:58,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:00:58,388 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:00:58,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:00:58,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:00:58,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:00:58,414 INFO L87 Difference]: Start difference. First operand has 2596 states, 2558 states have (on average 1.8354182955433933) internal successors, (4695), 2562 states have internal predecessors, (4695), 29 states have call successors, (29), 7 states have call predecessors, (29), 7 states have return successors, (29), 28 states have call predecessors, (29), 29 states have call successors, (29) Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:00:59,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:00:59,305 INFO L93 Difference]: Finished difference Result 5611 states and 10205 transitions. [2025-03-08 07:00:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 07:00:59,307 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:00:59,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:00:59,335 INFO L225 Difference]: With dead ends: 5611 [2025-03-08 07:00:59,336 INFO L226 Difference]: Without dead ends: 2966 [2025-03-08 07:00:59,347 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:00:59,349 INFO L435 NwaCegarLoop]: 4531 mSDtfsCounter, 5273 mSDsluCounter, 9348 mSDsCounter, 0 mSdLazyCounter, 678 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5294 SdHoareTripleChecker+Valid, 13879 SdHoareTripleChecker+Invalid, 740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 678 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:00:59,349 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5294 Valid, 13879 Invalid, 740 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [62 Valid, 678 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:00:59,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2966 states. [2025-03-08 07:00:59,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2966 to 2933. [2025-03-08 07:00:59,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2933 states, 2867 states have (on average 1.7973491454482038) internal successors, (5153), 2871 states have internal predecessors, (5153), 51 states have call successors, (51), 13 states have call predecessors, (51), 13 states have return successors, (50), 49 states have call predecessors, (50), 49 states have call successors, (50) [2025-03-08 07:00:59,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2933 states to 2933 states and 5254 transitions. [2025-03-08 07:00:59,487 INFO L78 Accepts]: Start accepts. Automaton has 2933 states and 5254 transitions. Word has length 188 [2025-03-08 07:00:59,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:00:59,488 INFO L471 AbstractCegarLoop]: Abstraction has 2933 states and 5254 transitions. [2025-03-08 07:00:59,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 4 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:00:59,488 INFO L276 IsEmpty]: Start isEmpty. Operand 2933 states and 5254 transitions. [2025-03-08 07:00:59,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:00:59,493 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:00:59,493 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:00:59,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 07:00:59,493 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:00:59,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:00:59,494 INFO L85 PathProgramCache]: Analyzing trace with hash -449712100, now seen corresponding path program 1 times [2025-03-08 07:00:59,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:00:59,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [322378205] [2025-03-08 07:00:59,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:00:59,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:00:59,520 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:00:59,535 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:00:59,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:00:59,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:00:59,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:00:59,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:00:59,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [322378205] [2025-03-08 07:00:59,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [322378205] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:00:59,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:00:59,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:00:59,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531441961] [2025-03-08 07:00:59,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:00:59,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:00:59,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:00:59,831 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:00:59,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:00:59,831 INFO L87 Difference]: Start difference. First operand 2933 states and 5254 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:00,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:00,729 INFO L93 Difference]: Finished difference Result 4240 states and 7375 transitions. [2025-03-08 07:01:00,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:00,731 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:00,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:00,749 INFO L225 Difference]: With dead ends: 4240 [2025-03-08 07:01:00,749 INFO L226 Difference]: Without dead ends: 3449 [2025-03-08 07:01:00,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:00,754 INFO L435 NwaCegarLoop]: 4806 mSDtfsCounter, 5214 mSDsluCounter, 14482 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5235 SdHoareTripleChecker+Valid, 19288 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:00,754 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5235 Valid, 19288 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:01:00,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3449 states. [2025-03-08 07:01:00,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3449 to 3308. [2025-03-08 07:01:00,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3308 states, 3213 states have (on average 1.7734204793028323) internal successors, (5698), 3218 states have internal predecessors, (5698), 73 states have call successors, (73), 19 states have call predecessors, (73), 20 states have return successors, (75), 72 states have call predecessors, (75), 71 states have call successors, (75) [2025-03-08 07:01:00,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3308 states to 3308 states and 5846 transitions. [2025-03-08 07:01:00,870 INFO L78 Accepts]: Start accepts. Automaton has 3308 states and 5846 transitions. Word has length 188 [2025-03-08 07:01:00,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:00,871 INFO L471 AbstractCegarLoop]: Abstraction has 3308 states and 5846 transitions. [2025-03-08 07:01:00,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:00,872 INFO L276 IsEmpty]: Start isEmpty. Operand 3308 states and 5846 transitions. [2025-03-08 07:01:00,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:00,874 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:00,875 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:00,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 07:01:00,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:00,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:00,878 INFO L85 PathProgramCache]: Analyzing trace with hash -164576197, now seen corresponding path program 1 times [2025-03-08 07:01:00,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:00,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319429893] [2025-03-08 07:01:00,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:00,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:00,905 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:00,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:00,912 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:00,912 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:01,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:01,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:01,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319429893] [2025-03-08 07:01:01,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319429893] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:01,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:01,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:01,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802694985] [2025-03-08 07:01:01,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:01,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:01,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:01,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:01,128 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:01,128 INFO L87 Difference]: Start difference. First operand 3308 states and 5846 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:01,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:01,927 INFO L93 Difference]: Finished difference Result 5438 states and 9296 transitions. [2025-03-08 07:01:01,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:01,928 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:01,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:01,946 INFO L225 Difference]: With dead ends: 5438 [2025-03-08 07:01:01,947 INFO L226 Difference]: Without dead ends: 4272 [2025-03-08 07:01:01,952 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:01,952 INFO L435 NwaCegarLoop]: 4802 mSDtfsCounter, 5209 mSDsluCounter, 14470 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5230 SdHoareTripleChecker+Valid, 19272 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:01,953 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5230 Valid, 19272 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:01:01,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4272 states. [2025-03-08 07:01:02,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4272 to 4109. [2025-03-08 07:01:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4109 states, 3954 states have (on average 1.7407688416793121) internal successors, (6883), 3963 states have internal predecessors, (6883), 117 states have call successors, (117), 31 states have call predecessors, (117), 36 states have return successors, (131), 118 states have call predecessors, (131), 115 states have call successors, (131) [2025-03-08 07:01:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4109 states to 4109 states and 7131 transitions. [2025-03-08 07:01:02,055 INFO L78 Accepts]: Start accepts. Automaton has 4109 states and 7131 transitions. Word has length 188 [2025-03-08 07:01:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:02,055 INFO L471 AbstractCegarLoop]: Abstraction has 4109 states and 7131 transitions. [2025-03-08 07:01:02,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:02,056 INFO L276 IsEmpty]: Start isEmpty. Operand 4109 states and 7131 transitions. [2025-03-08 07:01:02,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:02,058 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:02,058 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:02,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 07:01:02,058 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:02,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:02,059 INFO L85 PathProgramCache]: Analyzing trace with hash 537358396, now seen corresponding path program 1 times [2025-03-08 07:01:02,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:02,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880320155] [2025-03-08 07:01:02,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:02,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:02,070 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:02,077 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:02,078 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:02,078 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:02,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:02,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:02,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880320155] [2025-03-08 07:01:02,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880320155] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:02,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:02,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:02,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565795225] [2025-03-08 07:01:02,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:02,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:02,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:02,294 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:02,294 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:02,295 INFO L87 Difference]: Start difference. First operand 4109 states and 7131 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:03,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:03,098 INFO L93 Difference]: Finished difference Result 8033 states and 13539 transitions. [2025-03-08 07:01:03,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:03,099 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:03,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:03,122 INFO L225 Difference]: With dead ends: 8033 [2025-03-08 07:01:03,122 INFO L226 Difference]: Without dead ends: 6066 [2025-03-08 07:01:03,129 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:03,130 INFO L435 NwaCegarLoop]: 4799 mSDtfsCounter, 5204 mSDsluCounter, 14461 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5225 SdHoareTripleChecker+Valid, 19260 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:03,130 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5225 Valid, 19260 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2025-03-08 07:01:03,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6066 states. [2025-03-08 07:01:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6066 to 5858. [2025-03-08 07:01:03,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5858 states, 5577 states have (on average 1.7082660928814775) internal successors, (9527), 5600 states have internal predecessors, (9527), 205 states have call successors, (205), 55 states have call predecessors, (205), 74 states have return successors, (267), 210 states have call predecessors, (267), 203 states have call successors, (267) [2025-03-08 07:01:03,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5858 states to 5858 states and 9999 transitions. [2025-03-08 07:01:03,285 INFO L78 Accepts]: Start accepts. Automaton has 5858 states and 9999 transitions. Word has length 188 [2025-03-08 07:01:03,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:03,286 INFO L471 AbstractCegarLoop]: Abstraction has 5858 states and 9999 transitions. [2025-03-08 07:01:03,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:03,286 INFO L276 IsEmpty]: Start isEmpty. Operand 5858 states and 9999 transitions. [2025-03-08 07:01:03,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:03,291 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:03,291 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:03,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 07:01:03,292 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:03,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:03,293 INFO L85 PathProgramCache]: Analyzing trace with hash 144359451, now seen corresponding path program 1 times [2025-03-08 07:01:03,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:03,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806690261] [2025-03-08 07:01:03,293 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:03,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:03,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:03,308 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:03,308 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:03,308 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:03,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:03,439 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806690261] [2025-03-08 07:01:03,439 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806690261] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:03,439 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:03,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:03,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [140542614] [2025-03-08 07:01:03,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:03,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:03,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:03,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:03,440 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:03,440 INFO L87 Difference]: Start difference. First operand 5858 states and 9999 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:04,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:04,269 INFO L93 Difference]: Finished difference Result 13792 states and 23205 transitions. [2025-03-08 07:01:04,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:04,271 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:04,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:04,308 INFO L225 Difference]: With dead ends: 13792 [2025-03-08 07:01:04,308 INFO L226 Difference]: Without dead ends: 10076 [2025-03-08 07:01:04,325 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:04,326 INFO L435 NwaCegarLoop]: 4796 mSDtfsCounter, 5199 mSDsluCounter, 14452 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5220 SdHoareTripleChecker+Valid, 19248 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:04,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5220 Valid, 19248 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:01:04,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10076 states. [2025-03-08 07:01:04,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10076 to 9779. [2025-03-08 07:01:04,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9779 states, 9228 states have (on average 1.6908322496749024) internal successors, (15603), 9297 states have internal predecessors, (15603), 381 states have call successors, (381), 103 states have call predecessors, (381), 168 states have return successors, (635), 394 states have call predecessors, (635), 379 states have call successors, (635) [2025-03-08 07:01:04,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9779 states to 9779 states and 16619 transitions. [2025-03-08 07:01:04,728 INFO L78 Accepts]: Start accepts. Automaton has 9779 states and 16619 transitions. Word has length 188 [2025-03-08 07:01:04,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:04,729 INFO L471 AbstractCegarLoop]: Abstraction has 9779 states and 16619 transitions. [2025-03-08 07:01:04,729 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:04,730 INFO L276 IsEmpty]: Start isEmpty. Operand 9779 states and 16619 transitions. [2025-03-08 07:01:04,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:04,738 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:04,738 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:04,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 07:01:04,738 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:04,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:04,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1669433252, now seen corresponding path program 1 times [2025-03-08 07:01:04,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:04,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086872456] [2025-03-08 07:01:04,739 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:04,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:04,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:04,755 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:04,756 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:04,756 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:04,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:04,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:04,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086872456] [2025-03-08 07:01:04,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086872456] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:04,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:04,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:04,924 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170001044] [2025-03-08 07:01:04,924 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:04,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:04,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:04,925 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:04,925 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:04,925 INFO L87 Difference]: Start difference. First operand 9779 states and 16619 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:06,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:06,019 INFO L93 Difference]: Finished difference Result 26943 states and 46055 transitions. [2025-03-08 07:01:06,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:06,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:06,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:06,096 INFO L225 Difference]: With dead ends: 26943 [2025-03-08 07:01:06,097 INFO L226 Difference]: Without dead ends: 19306 [2025-03-08 07:01:06,131 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:06,132 INFO L435 NwaCegarLoop]: 4793 mSDtfsCounter, 5194 mSDsluCounter, 14443 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5215 SdHoareTripleChecker+Valid, 19236 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:06,132 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5215 Valid, 19236 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:01:06,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19306 states. [2025-03-08 07:01:06,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19306 to 18836. [2025-03-08 07:01:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6966254027471597) internal successors, (30015), 17906 states have internal predecessors, (30015), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:06,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32503 transitions. [2025-03-08 07:01:06,731 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32503 transitions. Word has length 188 [2025-03-08 07:01:06,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:06,732 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32503 transitions. [2025-03-08 07:01:06,732 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:06,732 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32503 transitions. [2025-03-08 07:01:06,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:06,740 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:06,740 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:06,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-08 07:01:06,740 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:06,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:06,741 INFO L85 PathProgramCache]: Analyzing trace with hash -619564037, now seen corresponding path program 1 times [2025-03-08 07:01:06,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:06,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143878158] [2025-03-08 07:01:06,741 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:06,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:06,751 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:06,756 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:06,757 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:06,757 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:06,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:06,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:06,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143878158] [2025-03-08 07:01:06,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143878158] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:06,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:06,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:06,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355604074] [2025-03-08 07:01:06,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:06,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:06,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:06,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:06,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:06,882 INFO L87 Difference]: Start difference. First operand 18836 states and 32503 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:07,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:07,487 INFO L93 Difference]: Finished difference Result 40920 states and 72148 transitions. [2025-03-08 07:01:07,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:07,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:07,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:07,686 INFO L225 Difference]: With dead ends: 40920 [2025-03-08 07:01:07,686 INFO L226 Difference]: Without dead ends: 24226 [2025-03-08 07:01:07,723 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:07,724 INFO L435 NwaCegarLoop]: 4438 mSDtfsCounter, 4835 mSDsluCounter, 8707 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4856 SdHoareTripleChecker+Valid, 13145 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:07,724 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4856 Valid, 13145 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:07,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24226 states. [2025-03-08 07:01:08,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24226 to 18836. [2025-03-08 07:01:08,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6947600474817703) internal successors, (29982), 17906 states have internal predecessors, (29982), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:08,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32470 transitions. [2025-03-08 07:01:08,510 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32470 transitions. Word has length 188 [2025-03-08 07:01:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:08,510 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32470 transitions. [2025-03-08 07:01:08,510 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32470 transitions. [2025-03-08 07:01:08,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:08,519 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:08,519 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:08,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-08 07:01:08,519 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:08,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:08,520 INFO L85 PathProgramCache]: Analyzing trace with hash -447149956, now seen corresponding path program 1 times [2025-03-08 07:01:08,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:08,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227586219] [2025-03-08 07:01:08,520 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:08,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:08,529 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:08,536 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:08,536 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:08,536 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:08,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:08,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:08,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227586219] [2025-03-08 07:01:08,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227586219] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:08,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:08,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:08,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858040238] [2025-03-08 07:01:08,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:08,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:08,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:08,637 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:08,637 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:08,637 INFO L87 Difference]: Start difference. First operand 18836 states and 32470 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:09,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:09,353 INFO L93 Difference]: Finished difference Result 40675 states and 71592 transitions. [2025-03-08 07:01:09,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:09,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:09,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:09,434 INFO L225 Difference]: With dead ends: 40675 [2025-03-08 07:01:09,434 INFO L226 Difference]: Without dead ends: 23981 [2025-03-08 07:01:09,465 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:09,465 INFO L435 NwaCegarLoop]: 4435 mSDtfsCounter, 4832 mSDsluCounter, 8702 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4853 SdHoareTripleChecker+Valid, 13137 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:09,466 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4853 Valid, 13137 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:09,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23981 states. [2025-03-08 07:01:09,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23981 to 18836. [2025-03-08 07:01:09,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6928946922163812) internal successors, (29949), 17906 states have internal predecessors, (29949), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:09,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32437 transitions. [2025-03-08 07:01:09,946 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32437 transitions. Word has length 188 [2025-03-08 07:01:09,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:09,946 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32437 transitions. [2025-03-08 07:01:09,947 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:09,947 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32437 transitions. [2025-03-08 07:01:09,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:09,953 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:09,954 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:09,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-08 07:01:09,955 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:09,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:09,955 INFO L85 PathProgramCache]: Analyzing trace with hash -2104156197, now seen corresponding path program 1 times [2025-03-08 07:01:09,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:09,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023210104] [2025-03-08 07:01:09,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:09,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:09,965 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:09,970 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:09,970 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:09,970 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:10,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:10,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:10,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023210104] [2025-03-08 07:01:10,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023210104] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:10,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:10,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:10,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594370821] [2025-03-08 07:01:10,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:10,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:10,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:10,065 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:10,065 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:10,065 INFO L87 Difference]: Start difference. First operand 18836 states and 32437 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:10,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:10,760 INFO L93 Difference]: Finished difference Result 40185 states and 70546 transitions. [2025-03-08 07:01:10,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:10,760 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:10,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:10,829 INFO L225 Difference]: With dead ends: 40185 [2025-03-08 07:01:10,829 INFO L226 Difference]: Without dead ends: 23491 [2025-03-08 07:01:10,861 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:10,865 INFO L435 NwaCegarLoop]: 4430 mSDtfsCounter, 4828 mSDsluCounter, 8693 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4849 SdHoareTripleChecker+Valid, 13123 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:10,865 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4849 Valid, 13123 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23491 states. [2025-03-08 07:01:11,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23491 to 18836. [2025-03-08 07:01:11,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6910293369509921) internal successors, (29916), 17906 states have internal predecessors, (29916), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:11,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32404 transitions. [2025-03-08 07:01:11,336 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32404 transitions. Word has length 188 [2025-03-08 07:01:11,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:11,337 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32404 transitions. [2025-03-08 07:01:11,337 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:11,337 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32404 transitions. [2025-03-08 07:01:11,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:11,343 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:11,344 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:11,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2025-03-08 07:01:11,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:11,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:11,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1885176570, now seen corresponding path program 1 times [2025-03-08 07:01:11,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:11,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232998779] [2025-03-08 07:01:11,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:11,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:11,354 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:11,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:11,358 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:11,358 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:11,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:11,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:11,446 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232998779] [2025-03-08 07:01:11,446 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232998779] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:11,446 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:11,446 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:11,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649248090] [2025-03-08 07:01:11,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:11,447 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:11,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:11,447 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:11,447 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:11,447 INFO L87 Difference]: Start difference. First operand 18836 states and 32404 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:12,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:12,174 INFO L93 Difference]: Finished difference Result 39940 states and 69990 transitions. [2025-03-08 07:01:12,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:12,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:12,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:12,258 INFO L225 Difference]: With dead ends: 39940 [2025-03-08 07:01:12,258 INFO L226 Difference]: Without dead ends: 23246 [2025-03-08 07:01:12,302 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:12,303 INFO L435 NwaCegarLoop]: 4427 mSDtfsCounter, 4825 mSDsluCounter, 8688 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4846 SdHoareTripleChecker+Valid, 13115 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:12,303 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4846 Valid, 13115 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:12,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23246 states. [2025-03-08 07:01:12,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23246 to 18836. [2025-03-08 07:01:12,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6891639816856028) internal successors, (29883), 17906 states have internal predecessors, (29883), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:13,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32371 transitions. [2025-03-08 07:01:13,008 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32371 transitions. Word has length 188 [2025-03-08 07:01:13,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:13,010 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32371 transitions. [2025-03-08 07:01:13,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:13,010 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32371 transitions. [2025-03-08 07:01:13,018 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:13,019 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:13,019 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:13,019 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2025-03-08 07:01:13,019 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:13,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:13,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1182580731, now seen corresponding path program 1 times [2025-03-08 07:01:13,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:13,020 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077375877] [2025-03-08 07:01:13,020 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:13,021 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:13,036 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:13,044 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:13,044 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:13,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:13,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077375877] [2025-03-08 07:01:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077375877] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:13,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:13,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:13,147 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544926155] [2025-03-08 07:01:13,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:13,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:13,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:13,152 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:13,152 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:13,152 INFO L87 Difference]: Start difference. First operand 18836 states and 32371 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:14,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:14,285 INFO L93 Difference]: Finished difference Result 39695 states and 69434 transitions. [2025-03-08 07:01:14,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:14,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:14,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:14,354 INFO L225 Difference]: With dead ends: 39695 [2025-03-08 07:01:14,354 INFO L226 Difference]: Without dead ends: 23001 [2025-03-08 07:01:14,376 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:14,378 INFO L435 NwaCegarLoop]: 4424 mSDtfsCounter, 4822 mSDsluCounter, 8683 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4843 SdHoareTripleChecker+Valid, 13107 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:14,378 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4843 Valid, 13107 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:14,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23001 states. [2025-03-08 07:01:14,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23001 to 18836. [2025-03-08 07:01:14,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18836 states, 17691 states have (on average 1.6872986264202137) internal successors, (29850), 17906 states have internal predecessors, (29850), 733 states have call successors, (733), 199 states have call predecessors, (733), 410 states have return successors, (1755), 762 states have call predecessors, (1755), 731 states have call successors, (1755) [2025-03-08 07:01:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18836 states to 18836 states and 32338 transitions. [2025-03-08 07:01:14,897 INFO L78 Accepts]: Start accepts. Automaton has 18836 states and 32338 transitions. Word has length 188 [2025-03-08 07:01:14,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:14,897 INFO L471 AbstractCegarLoop]: Abstraction has 18836 states and 32338 transitions. [2025-03-08 07:01:14,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:14,897 INFO L276 IsEmpty]: Start isEmpty. Operand 18836 states and 32338 transitions. [2025-03-08 07:01:14,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:14,904 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:14,904 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:14,904 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2025-03-08 07:01:14,904 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:14,905 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:14,905 INFO L85 PathProgramCache]: Analyzing trace with hash 2129747674, now seen corresponding path program 1 times [2025-03-08 07:01:14,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:14,905 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191310639] [2025-03-08 07:01:14,906 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:14,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:14,919 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:14,926 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:14,926 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:14,926 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:15,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:15,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:15,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191310639] [2025-03-08 07:01:15,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191310639] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:15,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:15,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:15,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019022640] [2025-03-08 07:01:15,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:15,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:15,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:15,028 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:15,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:15,029 INFO L87 Difference]: Start difference. First operand 18836 states and 32338 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:16,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:16,647 INFO L93 Difference]: Finished difference Result 56262 states and 98542 transitions. [2025-03-08 07:01:16,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:16,648 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:16,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:16,783 INFO L225 Difference]: With dead ends: 56262 [2025-03-08 07:01:16,784 INFO L226 Difference]: Without dead ends: 39568 [2025-03-08 07:01:16,828 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:16,829 INFO L435 NwaCegarLoop]: 4761 mSDtfsCounter, 5146 mSDsluCounter, 14354 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5167 SdHoareTripleChecker+Valid, 19115 SdHoareTripleChecker+Invalid, 1198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:16,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5167 Valid, 19115 Invalid, 1198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1163 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2025-03-08 07:01:16,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39568 states. [2025-03-08 07:01:17,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39568 to 38975. [2025-03-08 07:01:18,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38975 states, 36480 states have (on average 1.7012609649122807) internal successors, (62062), 37149 states have internal predecessors, (62062), 1437 states have call successors, (1437), 391 states have call predecessors, (1437), 1056 states have return successors, (5531), 1498 states have call predecessors, (5531), 1435 states have call successors, (5531) [2025-03-08 07:01:18,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38975 states to 38975 states and 69030 transitions. [2025-03-08 07:01:18,167 INFO L78 Accepts]: Start accepts. Automaton has 38975 states and 69030 transitions. Word has length 188 [2025-03-08 07:01:18,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:18,167 INFO L471 AbstractCegarLoop]: Abstraction has 38975 states and 69030 transitions. [2025-03-08 07:01:18,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:18,168 INFO L276 IsEmpty]: Start isEmpty. Operand 38975 states and 69030 transitions. [2025-03-08 07:01:18,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:18,181 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:18,181 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:18,181 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2025-03-08 07:01:18,181 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:18,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:18,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1441929189, now seen corresponding path program 1 times [2025-03-08 07:01:18,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:18,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201005450] [2025-03-08 07:01:18,182 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:18,196 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:18,200 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:18,200 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:18,200 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:18,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:18,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:18,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201005450] [2025-03-08 07:01:18,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201005450] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:18,326 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:18,326 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:18,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116945157] [2025-03-08 07:01:18,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:18,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:18,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:18,327 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:18,328 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:18,328 INFO L87 Difference]: Start difference. First operand 38975 states and 69030 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:21,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:21,159 INFO L93 Difference]: Finished difference Result 130315 states and 237729 transitions. [2025-03-08 07:01:21,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:21,159 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:21,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:21,506 INFO L225 Difference]: With dead ends: 130315 [2025-03-08 07:01:21,507 INFO L226 Difference]: Without dead ends: 93482 [2025-03-08 07:01:21,623 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:21,624 INFO L435 NwaCegarLoop]: 4756 mSDtfsCounter, 5545 mSDsluCounter, 14334 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5580 SdHoareTripleChecker+Valid, 19090 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:21,624 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5580 Valid, 19090 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:01:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93482 states. [2025-03-08 07:01:25,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93482 to 86108. [2025-03-08 07:01:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86108 states, 80491 states have (on average 1.7264290417562211) internal successors, (138962), 82554 states have internal predecessors, (138962), 2781 states have call successors, (2781), 775 states have call predecessors, (2781), 2834 states have return successors, (19163), 2906 states have call predecessors, (19163), 2779 states have call successors, (19163) [2025-03-08 07:01:25,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86108 states to 86108 states and 160906 transitions. [2025-03-08 07:01:25,734 INFO L78 Accepts]: Start accepts. Automaton has 86108 states and 160906 transitions. Word has length 188 [2025-03-08 07:01:25,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:25,734 INFO L471 AbstractCegarLoop]: Abstraction has 86108 states and 160906 transitions. [2025-03-08 07:01:25,734 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:25,734 INFO L276 IsEmpty]: Start isEmpty. Operand 86108 states and 160906 transitions. [2025-03-08 07:01:25,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:25,758 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:25,759 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:25,759 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-03-08 07:01:25,759 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:25,759 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:25,759 INFO L85 PathProgramCache]: Analyzing trace with hash 243970746, now seen corresponding path program 1 times [2025-03-08 07:01:25,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:25,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172049988] [2025-03-08 07:01:25,760 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:25,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:25,771 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:25,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:25,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:25,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:25,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:25,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:25,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172049988] [2025-03-08 07:01:25,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [172049988] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:25,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:25,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 07:01:25,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1255254165] [2025-03-08 07:01:25,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:25,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-08 07:01:25,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:25,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-08 07:01:25,851 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-08 07:01:25,851 INFO L87 Difference]: Start difference. First operand 86108 states and 160906 transitions. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:29,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:29,302 INFO L93 Difference]: Finished difference Result 200720 states and 389186 transitions. [2025-03-08 07:01:29,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-08 07:01:29,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:29,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:29,772 INFO L225 Difference]: With dead ends: 200720 [2025-03-08 07:01:29,772 INFO L226 Difference]: Without dead ends: 116754 [2025-03-08 07:01:29,976 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:29,976 INFO L435 NwaCegarLoop]: 4417 mSDtfsCounter, 4815 mSDsluCounter, 8668 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4836 SdHoareTripleChecker+Valid, 13085 SdHoareTripleChecker+Invalid, 516 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:29,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4836 Valid, 13085 Invalid, 516 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2025-03-08 07:01:30,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116754 states. [2025-03-08 07:01:35,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116754 to 86108. [2025-03-08 07:01:35,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86108 states, 80491 states have (on average 1.7248263781043844) internal successors, (138833), 82554 states have internal predecessors, (138833), 2781 states have call successors, (2781), 775 states have call predecessors, (2781), 2834 states have return successors, (19163), 2906 states have call predecessors, (19163), 2779 states have call successors, (19163) [2025-03-08 07:01:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86108 states to 86108 states and 160777 transitions. [2025-03-08 07:01:35,524 INFO L78 Accepts]: Start accepts. Automaton has 86108 states and 160777 transitions. Word has length 188 [2025-03-08 07:01:35,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-03-08 07:01:35,524 INFO L471 AbstractCegarLoop]: Abstraction has 86108 states and 160777 transitions. [2025-03-08 07:01:35,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:35,525 INFO L276 IsEmpty]: Start isEmpty. Operand 86108 states and 160777 transitions. [2025-03-08 07:01:35,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2025-03-08 07:01:35,542 INFO L210 NwaCegarLoop]: Found error trace [2025-03-08 07:01:35,542 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 07:01:35,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2025-03-08 07:01:35,543 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2025-03-08 07:01:35,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 07:01:35,543 INFO L85 PathProgramCache]: Analyzing trace with hash 436901947, now seen corresponding path program 1 times [2025-03-08 07:01:35,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 07:01:35,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613911396] [2025-03-08 07:01:35,543 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 07:01:35,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 07:01:35,552 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 188 statements into 1 equivalence classes. [2025-03-08 07:01:35,558 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 188 of 188 statements. [2025-03-08 07:01:35,558 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 07:01:35,559 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 07:01:35,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 07:01:35,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 07:01:35,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613911396] [2025-03-08 07:01:35,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613911396] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 07:01:35,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 07:01:35,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-03-08 07:01:35,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976062900] [2025-03-08 07:01:35,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 07:01:35,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 07:01:35,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 07:01:35,649 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 07:01:35,649 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-08 07:01:35,649 INFO L87 Difference]: Start difference. First operand 86108 states and 160777 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-03-08 07:01:41,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-03-08 07:01:41,769 INFO L93 Difference]: Finished difference Result 294260 states and 576344 transitions. [2025-03-08 07:01:41,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-03-08 07:01:41,769 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 5 states have internal predecessors, (177), 2 states have call successors, (6), 3 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 188 [2025-03-08 07:01:41,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-03-08 07:01:42,670 INFO L225 Difference]: With dead ends: 294260 [2025-03-08 07:01:42,670 INFO L226 Difference]: Without dead ends: 210294 [2025-03-08 07:01:42,955 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2025-03-08 07:01:42,955 INFO L435 NwaCegarLoop]: 4748 mSDtfsCounter, 5472 mSDsluCounter, 14311 mSDsCounter, 0 mSdLazyCounter, 1166 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5507 SdHoareTripleChecker+Valid, 19059 SdHoareTripleChecker+Invalid, 1204 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 1166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2025-03-08 07:01:42,955 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5507 Valid, 19059 Invalid, 1204 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 1166 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2025-03-08 07:01:43,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210294 states.