./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c00e63dc Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 8112998626056dc894e11aa34a9784719020235fe7efcff5e5ebeed0d86efe20 --- Real Ultimate output --- This is Ultimate 0.3.0-?-c00e63d-m [2025-02-05 17:18:19,493 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-05 17:18:19,543 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2025-02-05 17:18:19,549 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-05 17:18:19,550 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-05 17:18:19,570 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-05 17:18:19,571 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-05 17:18:19,571 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-05 17:18:19,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-05 17:18:19,572 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-05 17:18:19,572 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Use SBE=true [2025-02-05 17:18:19,572 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-05 17:18:19,572 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-05 17:18:19,573 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 17:18:19,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-05 17:18:19,573 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-05 17:18:19,574 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-05 17:18:19,574 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-05 17:18:19,574 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-jdk21/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 -> 8112998626056dc894e11aa34a9784719020235fe7efcff5e5ebeed0d86efe20 [2025-02-05 17:18:19,803 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-05 17:18:19,809 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-05 17:18:19,811 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-05 17:18:19,812 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-05 17:18:19,812 INFO L274 PluginConnector]: CDTParser initialized [2025-02-05 17:18:19,813 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c [2025-02-05 17:18:21,026 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5fb43d501/9326ac606c994a2ea5155e00b7415553/FLAG96862e01e [2025-02-05 17:18:21,603 INFO L384 CDTParser]: Found 1 translation units. [2025-02-05 17:18:21,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c [2025-02-05 17:18:21,648 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5fb43d501/9326ac606c994a2ea5155e00b7415553/FLAG96862e01e [2025-02-05 17:18:21,663 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5fb43d501/9326ac606c994a2ea5155e00b7415553 [2025-02-05 17:18:21,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-05 17:18:21,667 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-05 17:18:21,668 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-05 17:18:21,668 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-05 17:18:21,671 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-05 17:18:21,672 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 05:18:21" (1/1) ... [2025-02-05 17:18:21,673 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7f034bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:21, skipping insertion in model container [2025-02-05 17:18:21,674 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.02 05:18:21" (1/1) ... [2025-02-05 17:18:21,789 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-05 17:18:22,849 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c[380593,380606] [2025-02-05 17:18:22,877 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c[383339,383352] [2025-02-05 17:18:22,992 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 17:18:22,999 INFO L200 MainTranslator]: Completed pre-run [2025-02-05 17:18:23,546 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c[380593,380606] [2025-02-05 17:18:23,550 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.01.cil-1.c[383339,383352] [2025-02-05 17:18:23,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-05 17:18:23,606 INFO L204 MainTranslator]: Completed translation [2025-02-05 17:18:23,607 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23 WrapperNode [2025-02-05 17:18:23,607 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-05 17:18:23,608 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-05 17:18:23,609 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-05 17:18:23,609 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-05 17:18:23,614 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:23,666 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:23,932 INFO L138 Inliner]: procedures = 46, calls = 44, calls flagged for inlining = 24, calls inlined = 24, statements flattened = 12558 [2025-02-05 17:18:23,934 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-05 17:18:23,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-05 17:18:23,935 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-05 17:18:23,935 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-05 17:18:23,941 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:23,942 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:23,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,061 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]. [2025-02-05 17:18:24,061 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,061 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,226 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,244 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,263 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,281 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,322 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-05 17:18:24,324 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-05 17:18:24,324 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-05 17:18:24,324 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-05 17:18:24,325 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (1/1) ... [2025-02-05 17:18:24,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-05 17:18:24,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:24,387 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-05 17:18:24,402 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-05 17:18:24,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-05 17:18:24,437 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2025-02-05 17:18:24,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-05 17:18:24,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-05 17:18:24,544 INFO L257 CfgBuilder]: Building ICFG [2025-02-05 17:18:24,550 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-05 17:18:30,640 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L4481: havoc calculate_output3_#t~ret16#1; [2025-02-05 17:18:30,641 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L7469: havoc calculate_output5_#t~ret18#1; [2025-02-05 17:18:30,641 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L3033: havoc calculate_output2_#t~ret15#1; [2025-02-05 17:18:30,641 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L10440: havoc calculate_output7_#t~ret20#1; [2025-02-05 17:18:30,642 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L8922: havoc calculate_output6_#t~ret19#1; [2025-02-05 17:18:30,642 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6035: havoc calculate_output4_#t~ret17#1; [2025-02-05 17:18:30,642 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L1543: havoc calculate_output_#t~ret14#1; [2025-02-05 17:18:30,800 INFO L? ?]: Removed 1689 outVars from TransFormulas that were not future-live. [2025-02-05 17:18:30,801 INFO L308 CfgBuilder]: Performing block encoding [2025-02-05 17:18:30,846 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-05 17:18:30,847 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-05 17:18:30,847 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 05:18:30 BoogieIcfgContainer [2025-02-05 17:18:30,847 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-05 17:18:30,849 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-05 17:18:30,849 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-05 17:18:30,852 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-05 17:18:30,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.02 05:18:21" (1/3) ... [2025-02-05 17:18:30,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b2b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 05:18:30, skipping insertion in model container [2025-02-05 17:18:30,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.02 05:18:23" (2/3) ... [2025-02-05 17:18:30,853 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45b2b921 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.02 05:18:30, skipping insertion in model container [2025-02-05 17:18:30,853 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 05.02 05:18:30" (3/3) ... [2025-02-05 17:18:30,854 INFO L128 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.01.cil-1.c [2025-02-05 17:18:30,864 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-05 17:18:30,865 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem05_label49+token_ring.01.cil-1.c that has 7 procedures, 2294 locations, 1 initial locations, 5 loop locations, and 2 error locations. [2025-02-05 17:18:30,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-05 17:18:30,944 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;@2e978116, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-05 17:18:30,944 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-02-05 17:18:30,952 INFO L276 IsEmpty]: Start isEmpty. Operand has 2294 states, 2270 states have (on average 1.855066079295154) internal successors, (4211), 2273 states have internal predecessors, (4211), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2025-02-05 17:18:30,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-05 17:18:30,958 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:30,958 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] [2025-02-05 17:18:30,959 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:30,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:30,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1372706937, now seen corresponding path program 1 times [2025-02-05 17:18:30,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:30,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717597126] [2025-02-05 17:18:30,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:30,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:31,024 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-05 17:18:31,038 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-05 17:18:31,039 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:31,039 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:31,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:31,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:31,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717597126] [2025-02-05 17:18:31,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717597126] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:31,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:31,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 17:18:31,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102105329] [2025-02-05 17:18:31,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:31,223 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:31,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:31,237 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:31,238 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 17:18:31,245 INFO L87 Difference]: Start difference. First operand has 2294 states, 2270 states have (on average 1.855066079295154) internal successors, (4211), 2273 states have internal predecessors, (4211), 15 states have call successors, (15), 6 states have call predecessors, (15), 6 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:31,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:31,713 INFO L93 Difference]: Finished difference Result 4683 states and 8621 transitions. [2025-02-05 17:18:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 17:18:31,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-02-05 17:18:31,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:31,738 INFO L225 Difference]: With dead ends: 4683 [2025-02-05 17:18:31,740 INFO L226 Difference]: Without dead ends: 2328 [2025-02-05 17:18:31,748 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 [2025-02-05 17:18:31,751 INFO L435 NwaCegarLoop]: 4149 mSDtfsCounter, 4245 mSDsluCounter, 8343 mSDsCounter, 0 mSdLazyCounter, 181 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4254 SdHoareTripleChecker+Valid, 12492 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 181 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:31,752 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4254 Valid, 12492 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 181 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 17:18:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2328 states. [2025-02-05 17:18:31,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2328 to 2321. [2025-02-05 17:18:31,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2281 states have (on average 1.834721613327488) internal successors, (4185), 2284 states have internal predecessors, (4185), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2025-02-05 17:18:31,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 4236 transitions. [2025-02-05 17:18:31,885 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 4236 transitions. Word has length 57 [2025-02-05 17:18:31,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:31,886 INFO L471 AbstractCegarLoop]: Abstraction has 2321 states and 4236 transitions. [2025-02-05 17:18:31,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:31,887 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 4236 transitions. [2025-02-05 17:18:31,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-05 17:18:31,889 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:31,889 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] [2025-02-05 17:18:31,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-05 17:18:31,890 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:31,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:31,891 INFO L85 PathProgramCache]: Analyzing trace with hash 916730939, now seen corresponding path program 1 times [2025-02-05 17:18:31,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:31,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850769293] [2025-02-05 17:18:31,892 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:31,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:31,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-05 17:18:31,912 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-05 17:18:31,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:31,916 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:32,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:32,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:32,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850769293] [2025-02-05 17:18:32,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850769293] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:32,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:32,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 17:18:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792526879] [2025-02-05 17:18:32,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:32,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:32,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:32,043 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:32,044 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 17:18:32,044 INFO L87 Difference]: Start difference. First operand 2321 states and 4236 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:32,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:32,218 INFO L93 Difference]: Finished difference Result 2524 states and 4523 transitions. [2025-02-05 17:18:32,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:18:32,219 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-02-05 17:18:32,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:32,229 INFO L225 Difference]: With dead ends: 2524 [2025-02-05 17:18:32,229 INFO L226 Difference]: Without dead ends: 2333 [2025-02-05 17:18:32,231 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 [2025-02-05 17:18:32,232 INFO L435 NwaCegarLoop]: 4061 mSDtfsCounter, 4126 mSDsluCounter, 8077 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4135 SdHoareTripleChecker+Valid, 12138 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:32,232 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4135 Valid, 12138 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:32,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2333 states. [2025-02-05 17:18:32,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2333 to 2321. [2025-02-05 17:18:32,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2321 states, 2281 states have (on average 1.8338448049101272) internal successors, (4183), 2284 states have internal predecessors, (4183), 25 states have call successors, (25), 12 states have call predecessors, (25), 13 states have return successors, (26), 25 states have call predecessors, (26), 25 states have call successors, (26) [2025-02-05 17:18:32,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2321 states to 2321 states and 4234 transitions. [2025-02-05 17:18:32,302 INFO L78 Accepts]: Start accepts. Automaton has 2321 states and 4234 transitions. Word has length 57 [2025-02-05 17:18:32,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:32,302 INFO L471 AbstractCegarLoop]: Abstraction has 2321 states and 4234 transitions. [2025-02-05 17:18:32,302 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:32,303 INFO L276 IsEmpty]: Start isEmpty. Operand 2321 states and 4234 transitions. [2025-02-05 17:18:32,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-05 17:18:32,304 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:32,304 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] [2025-02-05 17:18:32,304 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-05 17:18:32,304 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:32,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:32,305 INFO L85 PathProgramCache]: Analyzing trace with hash -107962982, now seen corresponding path program 1 times [2025-02-05 17:18:32,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:32,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751740641] [2025-02-05 17:18:32,305 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:32,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:32,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-05 17:18:32,318 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-05 17:18:32,318 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:32,318 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:32,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:32,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:32,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751740641] [2025-02-05 17:18:32,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751740641] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:32,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:32,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-02-05 17:18:32,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383679341] [2025-02-05 17:18:32,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:32,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 17:18:32,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:32,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 17:18:32,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:32,462 INFO L87 Difference]: Start difference. First operand 2321 states and 4234 transitions. Second operand has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:32,785 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:32,785 INFO L93 Difference]: Finished difference Result 2631 states and 4660 transitions. [2025-02-05 17:18:32,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-02-05 17:18:32,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-02-05 17:18:32,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:32,797 INFO L225 Difference]: With dead ends: 2631 [2025-02-05 17:18:32,797 INFO L226 Difference]: Without dead ends: 2440 [2025-02-05 17:18:32,799 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 [2025-02-05 17:18:32,800 INFO L435 NwaCegarLoop]: 4133 mSDtfsCounter, 4202 mSDsluCounter, 12356 mSDsCounter, 0 mSdLazyCounter, 359 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4213 SdHoareTripleChecker+Valid, 16489 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:32,800 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4213 Valid, 16489 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 359 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-02-05 17:18:32,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2440 states. [2025-02-05 17:18:32,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2440 to 2406. [2025-02-05 17:18:32,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 2350 states have (on average 1.82) internal successors, (4277), 2354 states have internal predecessors, (4277), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (38), 35 states have call predecessors, (38), 34 states have call successors, (38) [2025-02-05 17:18:32,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 4349 transitions. [2025-02-05 17:18:32,858 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 4349 transitions. Word has length 57 [2025-02-05 17:18:32,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:32,858 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 4349 transitions. [2025-02-05 17:18:32,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.833333333333333) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:32,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 4349 transitions. [2025-02-05 17:18:32,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-05 17:18:32,859 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:32,859 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] [2025-02-05 17:18:32,859 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-05 17:18:32,860 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:32,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:32,860 INFO L85 PathProgramCache]: Analyzing trace with hash -556659621, now seen corresponding path program 1 times [2025-02-05 17:18:32,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:32,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810350254] [2025-02-05 17:18:32,860 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:32,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:32,870 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-05 17:18:32,875 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-05 17:18:32,875 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:32,876 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:32,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:32,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:32,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810350254] [2025-02-05 17:18:32,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810350254] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:32,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:32,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-05 17:18:32,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903024321] [2025-02-05 17:18:32,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:32,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:32,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:32,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:32,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 17:18:32,951 INFO L87 Difference]: Start difference. First operand 2406 states and 4349 transitions. Second operand has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:33,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:33,115 INFO L93 Difference]: Finished difference Result 2692 states and 4744 transitions. [2025-02-05 17:18:33,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:18:33,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-02-05 17:18:33,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:33,126 INFO L225 Difference]: With dead ends: 2692 [2025-02-05 17:18:33,126 INFO L226 Difference]: Without dead ends: 2416 [2025-02-05 17:18:33,128 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 [2025-02-05 17:18:33,130 INFO L435 NwaCegarLoop]: 4056 mSDtfsCounter, 4120 mSDsluCounter, 8066 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4129 SdHoareTripleChecker+Valid, 12122 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:33,131 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4129 Valid, 12122 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:33,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2416 states. [2025-02-05 17:18:33,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2416 to 2406. [2025-02-05 17:18:33,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2406 states, 2350 states have (on average 1.818723404255319) internal successors, (4274), 2354 states have internal predecessors, (4274), 34 states have call successors, (34), 18 states have call predecessors, (34), 20 states have return successors, (38), 35 states have call predecessors, (38), 34 states have call successors, (38) [2025-02-05 17:18:33,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2406 states to 2406 states and 4346 transitions. [2025-02-05 17:18:33,242 INFO L78 Accepts]: Start accepts. Automaton has 2406 states and 4346 transitions. Word has length 57 [2025-02-05 17:18:33,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:33,243 INFO L471 AbstractCegarLoop]: Abstraction has 2406 states and 4346 transitions. [2025-02-05 17:18:33,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.4) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:33,243 INFO L276 IsEmpty]: Start isEmpty. Operand 2406 states and 4346 transitions. [2025-02-05 17:18:33,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2025-02-05 17:18:33,244 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:33,244 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] [2025-02-05 17:18:33,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-05 17:18:33,244 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:33,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:33,245 INFO L85 PathProgramCache]: Analyzing trace with hash -432586374, now seen corresponding path program 1 times [2025-02-05 17:18:33,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:33,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876912123] [2025-02-05 17:18:33,245 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:33,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:33,251 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 57 statements into 1 equivalence classes. [2025-02-05 17:18:33,254 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 57 of 57 statements. [2025-02-05 17:18:33,254 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:33,254 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:33,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:33,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:33,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876912123] [2025-02-05 17:18:33,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876912123] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:33,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:33,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-02-05 17:18:33,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309670967] [2025-02-05 17:18:33,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:33,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 17:18:33,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:33,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 17:18:33,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 17:18:33,322 INFO L87 Difference]: Start difference. First operand 2406 states and 4346 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:33,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:33,476 INFO L93 Difference]: Finished difference Result 2938 states and 5089 transitions. [2025-02-05 17:18:33,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:18:33,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 57 [2025-02-05 17:18:33,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:33,487 INFO L225 Difference]: With dead ends: 2938 [2025-02-05 17:18:33,488 INFO L226 Difference]: Without dead ends: 2663 [2025-02-05 17:18:33,490 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-05 17:18:33,490 INFO L435 NwaCegarLoop]: 4214 mSDtfsCounter, 4195 mSDsluCounter, 4159 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4195 SdHoareTripleChecker+Valid, 8373 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:33,490 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4195 Valid, 8373 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:33,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2663 states. [2025-02-05 17:18:33,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2663 to 2660. [2025-02-05 17:18:33,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2660 states, 2554 states have (on average 1.7768206734534064) internal successors, (4538), 2563 states have internal predecessors, (4538), 64 states have call successors, (64), 36 states have call predecessors, (64), 40 states have return successors, (71), 62 states have call predecessors, (71), 64 states have call successors, (71) [2025-02-05 17:18:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2660 states to 2660 states and 4673 transitions. [2025-02-05 17:18:33,585 INFO L78 Accepts]: Start accepts. Automaton has 2660 states and 4673 transitions. Word has length 57 [2025-02-05 17:18:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:33,585 INFO L471 AbstractCegarLoop]: Abstraction has 2660 states and 4673 transitions. [2025-02-05 17:18:33,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 2 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2025-02-05 17:18:33,585 INFO L276 IsEmpty]: Start isEmpty. Operand 2660 states and 4673 transitions. [2025-02-05 17:18:33,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-05 17:18:33,587 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:33,587 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:33,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-05 17:18:33,587 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:33,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:33,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1872598801, now seen corresponding path program 1 times [2025-02-05 17:18:33,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:33,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666400831] [2025-02-05 17:18:33,588 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:33,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:33,600 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 17:18:33,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 17:18:33,605 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:33,605 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:33,695 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 17:18:33,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:33,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666400831] [2025-02-05 17:18:33,696 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666400831] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:33,696 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [111865124] [2025-02-05 17:18:33,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:33,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:33,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:33,699 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:33,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-05 17:18:33,742 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 17:18:33,779 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 17:18:33,780 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:33,780 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:33,782 INFO L256 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 17:18:33,788 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:33,838 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2025-02-05 17:18:33,838 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:33,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [111865124] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:33,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:33,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2025-02-05 17:18:33,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1235091765] [2025-02-05 17:18:33,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:33,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:33,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:33,840 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:33,840 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:33,840 INFO L87 Difference]: Start difference. First operand 2660 states and 4673 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-05 17:18:33,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:33,947 INFO L93 Difference]: Finished difference Result 3693 states and 6057 transitions. [2025-02-05 17:18:33,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:33,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 94 [2025-02-05 17:18:33,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:33,961 INFO L225 Difference]: With dead ends: 3693 [2025-02-05 17:18:33,961 INFO L226 Difference]: Without dead ends: 3164 [2025-02-05 17:18:33,964 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:33,964 INFO L435 NwaCegarLoop]: 4099 mSDtfsCounter, 4067 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4067 SdHoareTripleChecker+Valid, 4220 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:33,964 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4067 Valid, 4220 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:33,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3164 states. [2025-02-05 17:18:34,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3164 to 3144. [2025-02-05 17:18:34,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3144 states, 2942 states have (on average 1.717199184228416) internal successors, (5052), 2958 states have internal predecessors, (5052), 120 states have call successors, (120), 72 states have call predecessors, (120), 80 states have return successors, (133), 115 states have call predecessors, (133), 120 states have call successors, (133) [2025-02-05 17:18:34,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3144 states to 3144 states and 5305 transitions. [2025-02-05 17:18:34,092 INFO L78 Accepts]: Start accepts. Automaton has 3144 states and 5305 transitions. Word has length 94 [2025-02-05 17:18:34,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:34,092 INFO L471 AbstractCegarLoop]: Abstraction has 3144 states and 5305 transitions. [2025-02-05 17:18:34,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2025-02-05 17:18:34,092 INFO L276 IsEmpty]: Start isEmpty. Operand 3144 states and 5305 transitions. [2025-02-05 17:18:34,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2025-02-05 17:18:34,094 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:34,094 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:34,101 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2025-02-05 17:18:34,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:34,296 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:34,296 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:34,296 INFO L85 PathProgramCache]: Analyzing trace with hash -209955927, now seen corresponding path program 1 times [2025-02-05 17:18:34,296 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:34,296 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27576318] [2025-02-05 17:18:34,297 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:34,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:34,303 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 17:18:34,306 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 17:18:34,306 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:34,306 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:34,373 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2025-02-05 17:18:34,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27576318] [2025-02-05 17:18:34,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27576318] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:34,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534246983] [2025-02-05 17:18:34,374 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:34,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:34,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:34,376 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:34,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-05 17:18:34,415 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-02-05 17:18:34,442 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-02-05 17:18:34,442 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:34,442 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:34,444 INFO L256 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 17:18:34,446 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:34,463 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2025-02-05 17:18:34,464 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:34,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534246983] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:34,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:34,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:34,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315710397] [2025-02-05 17:18:34,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:34,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:34,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:34,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:34,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:34,465 INFO L87 Difference]: Start difference. First operand 3144 states and 5305 transitions. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:34,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:34,583 INFO L93 Difference]: Finished difference Result 5051 states and 7883 transitions. [2025-02-05 17:18:34,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:34,583 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 94 [2025-02-05 17:18:34,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:34,599 INFO L225 Difference]: With dead ends: 5051 [2025-02-05 17:18:34,600 INFO L226 Difference]: Without dead ends: 4039 [2025-02-05 17:18:34,603 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:34,604 INFO L435 NwaCegarLoop]: 4216 mSDtfsCounter, 114 mSDsluCounter, 4096 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 8312 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:34,604 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 8312 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:34,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4039 states. [2025-02-05 17:18:34,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4039 to 4039. [2025-02-05 17:18:34,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4039 states, 3666 states have (on average 1.638025095471904) internal successors, (6005), 3691 states have internal predecessors, (6005), 219 states have call successors, (219), 136 states have call predecessors, (219), 152 states have return successors, (270), 215 states have call predecessors, (270), 219 states have call successors, (270) [2025-02-05 17:18:34,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 6494 transitions. [2025-02-05 17:18:34,776 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 6494 transitions. Word has length 94 [2025-02-05 17:18:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:34,777 INFO L471 AbstractCegarLoop]: Abstraction has 4039 states and 6494 transitions. [2025-02-05 17:18:34,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:34,777 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 6494 transitions. [2025-02-05 17:18:34,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-02-05 17:18:34,782 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:34,782 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:34,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:34,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:34,986 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:34,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:34,987 INFO L85 PathProgramCache]: Analyzing trace with hash -2073526325, now seen corresponding path program 1 times [2025-02-05 17:18:34,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:34,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127081635] [2025-02-05 17:18:34,987 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:34,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:34,992 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 17:18:34,995 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 17:18:34,995 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:34,995 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-05 17:18:35,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127081635] [2025-02-05 17:18:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127081635] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117586170] [2025-02-05 17:18:35,054 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:35,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:35,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:35,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:35,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-05 17:18:35,098 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 17:18:35,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 17:18:35,132 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:35,132 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:35,134 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 17:18:35,140 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:35,183 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-02-05 17:18:35,186 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:35,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [117586170] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:35,186 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:35,186 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:35,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800893931] [2025-02-05 17:18:35,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:35,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:35,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:35,187 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:35,187 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:35,188 INFO L87 Difference]: Start difference. First operand 4039 states and 6494 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 17:18:35,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:35,303 INFO L93 Difference]: Finished difference Result 6133 states and 9323 transitions. [2025-02-05 17:18:35,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:35,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 139 [2025-02-05 17:18:35,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:35,326 INFO L225 Difference]: With dead ends: 6133 [2025-02-05 17:18:35,326 INFO L226 Difference]: Without dead ends: 4231 [2025-02-05 17:18:35,331 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:35,332 INFO L435 NwaCegarLoop]: 4102 mSDtfsCounter, 4078 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4078 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:35,332 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4078 Valid, 4126 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:35,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4231 states. [2025-02-05 17:18:35,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4231 to 4231. [2025-02-05 17:18:35,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4231 states, 3838 states have (on average 1.6026576341844712) internal successors, (6151), 3863 states have internal predecessors, (6151), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (274), 219 states have call predecessors, (274), 223 states have call successors, (274) [2025-02-05 17:18:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4231 states to 4231 states and 6648 transitions. [2025-02-05 17:18:35,455 INFO L78 Accepts]: Start accepts. Automaton has 4231 states and 6648 transitions. Word has length 139 [2025-02-05 17:18:35,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:35,456 INFO L471 AbstractCegarLoop]: Abstraction has 4231 states and 6648 transitions. [2025-02-05 17:18:35,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2025-02-05 17:18:35,456 INFO L276 IsEmpty]: Start isEmpty. Operand 4231 states and 6648 transitions. [2025-02-05 17:18:35,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2025-02-05 17:18:35,460 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:35,461 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:35,468 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-02-05 17:18:35,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:35,662 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:35,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:35,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1804305875, now seen corresponding path program 1 times [2025-02-05 17:18:35,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:35,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493599352] [2025-02-05 17:18:35,663 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:35,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:35,668 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 17:18:35,672 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 17:18:35,672 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:35,672 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:35,745 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2025-02-05 17:18:35,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:35,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493599352] [2025-02-05 17:18:35,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493599352] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:35,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1576936488] [2025-02-05 17:18:35,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:35,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:35,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:35,751 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:35,756 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-05 17:18:35,795 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 139 statements into 1 equivalence classes. [2025-02-05 17:18:35,828 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 139 of 139 statements. [2025-02-05 17:18:35,828 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:35,828 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:35,830 INFO L256 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 17:18:35,833 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:35,869 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2025-02-05 17:18:35,869 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:35,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1576936488] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:35,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:35,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:35,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86372507] [2025-02-05 17:18:35,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:35,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:35,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:35,870 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:35,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:35,870 INFO L87 Difference]: Start difference. First operand 4231 states and 6648 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 17:18:35,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:35,961 INFO L93 Difference]: Finished difference Result 6006 states and 8914 transitions. [2025-02-05 17:18:35,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:35,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 139 [2025-02-05 17:18:35,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:35,974 INFO L225 Difference]: With dead ends: 6006 [2025-02-05 17:18:35,975 INFO L226 Difference]: Without dead ends: 4351 [2025-02-05 17:18:35,980 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:35,980 INFO L435 NwaCegarLoop]: 4122 mSDtfsCounter, 4056 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4056 SdHoareTripleChecker+Valid, 4249 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:35,980 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4056 Valid, 4249 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:35,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4351 states. [2025-02-05 17:18:36,078 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4351 to 4219. [2025-02-05 17:18:36,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4219 states, 3826 states have (on average 1.5951385258755881) internal successors, (6103), 3851 states have internal predecessors, (6103), 223 states have call successors, (223), 152 states have call predecessors, (223), 168 states have return successors, (274), 219 states have call predecessors, (274), 223 states have call successors, (274) [2025-02-05 17:18:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4219 states to 4219 states and 6600 transitions. [2025-02-05 17:18:36,096 INFO L78 Accepts]: Start accepts. Automaton has 4219 states and 6600 transitions. Word has length 139 [2025-02-05 17:18:36,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:36,097 INFO L471 AbstractCegarLoop]: Abstraction has 4219 states and 6600 transitions. [2025-02-05 17:18:36,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 17:18:36,097 INFO L276 IsEmpty]: Start isEmpty. Operand 4219 states and 6600 transitions. [2025-02-05 17:18:36,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2025-02-05 17:18:36,101 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:36,101 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:36,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:36,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2025-02-05 17:18:36,302 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:36,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:36,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1060016052, now seen corresponding path program 1 times [2025-02-05 17:18:36,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:36,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313686243] [2025-02-05 17:18:36,303 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:36,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:36,308 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 17:18:36,310 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 17:18:36,310 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:36,310 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:36,365 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2025-02-05 17:18:36,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:36,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313686243] [2025-02-05 17:18:36,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313686243] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:36,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778302450] [2025-02-05 17:18:36,365 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:36,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:36,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:36,367 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:36,369 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-05 17:18:36,408 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 140 statements into 1 equivalence classes. [2025-02-05 17:18:36,441 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 140 of 140 statements. [2025-02-05 17:18:36,441 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:36,441 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:36,443 INFO L256 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-05 17:18:36,445 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:36,471 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2025-02-05 17:18:36,472 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:36,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1778302450] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:36,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:36,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:36,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52234033] [2025-02-05 17:18:36,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:36,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:36,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:36,472 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:36,472 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:36,473 INFO L87 Difference]: Start difference. First operand 4219 states and 6600 transitions. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 17:18:36,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:36,674 INFO L93 Difference]: Finished difference Result 8211 states and 11698 transitions. [2025-02-05 17:18:36,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:36,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 140 [2025-02-05 17:18:36,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:36,699 INFO L225 Difference]: With dead ends: 8211 [2025-02-05 17:18:36,700 INFO L226 Difference]: Without dead ends: 6129 [2025-02-05 17:18:36,706 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:36,706 INFO L435 NwaCegarLoop]: 4212 mSDtfsCounter, 111 mSDsluCounter, 4095 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 8307 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:36,707 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 8307 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:36,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6129 states. [2025-02-05 17:18:36,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6129 to 6127. [2025-02-05 17:18:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6127 states, 5368 states have (on average 1.4875186289120714) internal successors, (7985), 5417 states have internal predecessors, (7985), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-02-05 17:18:36,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6127 states to 6127 states and 9012 transitions. [2025-02-05 17:18:36,898 INFO L78 Accepts]: Start accepts. Automaton has 6127 states and 9012 transitions. Word has length 140 [2025-02-05 17:18:36,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:36,900 INFO L471 AbstractCegarLoop]: Abstraction has 6127 states and 9012 transitions. [2025-02-05 17:18:36,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 17:18:36,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6127 states and 9012 transitions. [2025-02-05 17:18:36,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2025-02-05 17:18:36,907 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:36,907 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:36,913 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:37,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2025-02-05 17:18:37,108 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:37,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:37,108 INFO L85 PathProgramCache]: Analyzing trace with hash 602340293, now seen corresponding path program 1 times [2025-02-05 17:18:37,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:37,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518026067] [2025-02-05 17:18:37,108 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:37,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:37,116 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 17:18:37,121 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 17:18:37,121 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:37,121 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:37,181 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2025-02-05 17:18:37,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:37,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518026067] [2025-02-05 17:18:37,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518026067] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:37,181 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1646683948] [2025-02-05 17:18:37,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:37,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:37,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:37,183 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:37,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-05 17:18:37,227 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 141 statements into 1 equivalence classes. [2025-02-05 17:18:37,260 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 141 of 141 statements. [2025-02-05 17:18:37,260 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:37,260 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:37,262 INFO L256 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 17:18:37,263 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:37,320 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-02-05 17:18:37,323 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:37,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1646683948] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:37,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:37,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:37,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1670557971] [2025-02-05 17:18:37,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:37,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:37,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:37,325 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:37,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:37,325 INFO L87 Difference]: Start difference. First operand 6127 states and 9012 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 17:18:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:37,481 INFO L93 Difference]: Finished difference Result 8209 states and 11774 transitions. [2025-02-05 17:18:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:37,482 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 141 [2025-02-05 17:18:37,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:37,504 INFO L225 Difference]: With dead ends: 8209 [2025-02-05 17:18:37,505 INFO L226 Difference]: Without dead ends: 6145 [2025-02-05 17:18:37,514 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 141 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:37,515 INFO L435 NwaCegarLoop]: 4179 mSDtfsCounter, 75 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 8265 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:37,515 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 8265 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:37,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6145 states. [2025-02-05 17:18:37,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6145 to 6119. [2025-02-05 17:18:37,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6119 states, 5360 states have (on average 1.4770522388059701) internal successors, (7917), 5409 states have internal predecessors, (7917), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-02-05 17:18:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 8944 transitions. [2025-02-05 17:18:37,767 INFO L78 Accepts]: Start accepts. Automaton has 6119 states and 8944 transitions. Word has length 141 [2025-02-05 17:18:37,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:37,767 INFO L471 AbstractCegarLoop]: Abstraction has 6119 states and 8944 transitions. [2025-02-05 17:18:37,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2025-02-05 17:18:37,767 INFO L276 IsEmpty]: Start isEmpty. Operand 6119 states and 8944 transitions. [2025-02-05 17:18:37,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 17:18:37,773 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:37,774 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:37,780 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:37,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-02-05 17:18:37,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:37,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:37,975 INFO L85 PathProgramCache]: Analyzing trace with hash 2126997846, now seen corresponding path program 1 times [2025-02-05 17:18:37,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:37,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475954946] [2025-02-05 17:18:37,975 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:37,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:37,980 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:37,983 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:37,983 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:37,983 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:38,034 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-05 17:18:38,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:38,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475954946] [2025-02-05 17:18:38,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475954946] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:38,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112466365] [2025-02-05 17:18:38,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:38,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:38,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:38,037 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:38,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-05 17:18:38,087 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:38,126 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:38,126 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:38,126 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:38,128 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 17:18:38,130 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:38,199 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 17:18:38,199 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:38,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112466365] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:38,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:38,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-05 17:18:38,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020923570] [2025-02-05 17:18:38,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:38,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:38,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:38,200 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:38,200 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 17:18:38,200 INFO L87 Difference]: Start difference. First operand 6119 states and 8944 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:38,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:38,452 INFO L93 Difference]: Finished difference Result 10093 states and 13985 transitions. [2025-02-05 17:18:38,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:18:38,453 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 142 [2025-02-05 17:18:38,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:38,471 INFO L225 Difference]: With dead ends: 10093 [2025-02-05 17:18:38,471 INFO L226 Difference]: Without dead ends: 6119 [2025-02-05 17:18:38,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2025-02-05 17:18:38,482 INFO L435 NwaCegarLoop]: 4050 mSDtfsCounter, 4097 mSDsluCounter, 8059 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4105 SdHoareTripleChecker+Valid, 12109 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:38,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4105 Valid, 12109 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:38,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6119 states. [2025-02-05 17:18:38,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6119 to 6119. [2025-02-05 17:18:38,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6119 states, 5360 states have (on average 1.4591417910447761) internal successors, (7821), 5409 states have internal predecessors, (7821), 429 states have call successors, (429), 296 states have call predecessors, (429), 328 states have return successors, (598), 421 states have call predecessors, (598), 429 states have call successors, (598) [2025-02-05 17:18:38,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6119 states to 6119 states and 8848 transitions. [2025-02-05 17:18:38,777 INFO L78 Accepts]: Start accepts. Automaton has 6119 states and 8848 transitions. Word has length 142 [2025-02-05 17:18:38,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:38,777 INFO L471 AbstractCegarLoop]: Abstraction has 6119 states and 8848 transitions. [2025-02-05 17:18:38,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:38,777 INFO L276 IsEmpty]: Start isEmpty. Operand 6119 states and 8848 transitions. [2025-02-05 17:18:38,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 17:18:38,787 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:38,787 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:38,794 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-05 17:18:38,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:38,987 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:38,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:38,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1091416041, now seen corresponding path program 1 times [2025-02-05 17:18:38,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:38,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [499520656] [2025-02-05 17:18:38,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:38,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:38,997 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:39,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:39,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:39,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:39,077 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-05 17:18:39,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:39,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [499520656] [2025-02-05 17:18:39,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [499520656] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:39,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [914093132] [2025-02-05 17:18:39,077 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:39,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:39,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:39,080 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:39,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-02-05 17:18:39,125 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:39,161 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:39,162 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:39,162 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:39,163 INFO L256 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-02-05 17:18:39,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:39,229 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 17:18:39,229 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:39,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [914093132] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:39,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:39,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2025-02-05 17:18:39,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739712543] [2025-02-05 17:18:39,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:39,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:39,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:39,230 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:39,230 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 17:18:39,230 INFO L87 Difference]: Start difference. First operand 6119 states and 8848 transitions. Second operand has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:39,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:39,546 INFO L93 Difference]: Finished difference Result 9641 states and 13337 transitions. [2025-02-05 17:18:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 17:18:39,547 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 142 [2025-02-05 17:18:39,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:39,566 INFO L225 Difference]: With dead ends: 9641 [2025-02-05 17:18:39,566 INFO L226 Difference]: Without dead ends: 6251 [2025-02-05 17:18:39,574 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2025-02-05 17:18:39,576 INFO L435 NwaCegarLoop]: 4048 mSDtfsCounter, 4135 mSDsluCounter, 8054 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4144 SdHoareTripleChecker+Valid, 12102 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:39,576 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4144 Valid, 12102 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 167 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:39,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6251 states. [2025-02-05 17:18:39,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6251 to 5237. [2025-02-05 17:18:39,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5237 states, 4662 states have (on average 1.4736164736164736) internal successors, (6870), 4691 states have internal predecessors, (6870), 329 states have call successors, (329), 228 states have call predecessors, (329), 244 states have return successors, (439), 321 states have call predecessors, (439), 329 states have call successors, (439) [2025-02-05 17:18:39,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5237 states to 5237 states and 7638 transitions. [2025-02-05 17:18:39,738 INFO L78 Accepts]: Start accepts. Automaton has 5237 states and 7638 transitions. Word has length 142 [2025-02-05 17:18:39,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:39,739 INFO L471 AbstractCegarLoop]: Abstraction has 5237 states and 7638 transitions. [2025-02-05 17:18:39,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.0) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2025-02-05 17:18:39,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5237 states and 7638 transitions. [2025-02-05 17:18:39,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2025-02-05 17:18:39,743 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:39,743 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:39,749 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:39,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:39,944 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:39,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash 744426806, now seen corresponding path program 1 times [2025-02-05 17:18:39,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:39,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229877055] [2025-02-05 17:18:39,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:39,945 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:39,950 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:39,953 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:39,954 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:39,954 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:40,013 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-05 17:18:40,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:40,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229877055] [2025-02-05 17:18:40,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1229877055] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:40,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313103512] [2025-02-05 17:18:40,014 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:40,014 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:40,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:40,016 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:40,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-02-05 17:18:40,058 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 142 statements into 1 equivalence classes. [2025-02-05 17:18:40,091 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 142 of 142 statements. [2025-02-05 17:18:40,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:40,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:40,093 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 17:18:40,095 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:40,219 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 57 proven. 16 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2025-02-05 17:18:40,220 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-02-05 17:18:40,308 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2025-02-05 17:18:40,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313103512] provided 1 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:40,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2025-02-05 17:18:40,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5, 4] total 7 [2025-02-05 17:18:40,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524707878] [2025-02-05 17:18:40,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:40,309 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 17:18:40,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:40,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 17:18:40,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 17:18:40,310 INFO L87 Difference]: Start difference. First operand 5237 states and 7638 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 17:18:40,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:40,594 INFO L93 Difference]: Finished difference Result 9169 states and 12254 transitions. [2025-02-05 17:18:40,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:18:40,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 142 [2025-02-05 17:18:40,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:40,616 INFO L225 Difference]: With dead ends: 9169 [2025-02-05 17:18:40,617 INFO L226 Difference]: Without dead ends: 7711 [2025-02-05 17:18:40,622 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2025-02-05 17:18:40,623 INFO L435 NwaCegarLoop]: 4197 mSDtfsCounter, 4174 mSDsluCounter, 4151 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4174 SdHoareTripleChecker+Valid, 8348 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:40,623 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4174 Valid, 8348 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-02-05 17:18:40,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7711 states. [2025-02-05 17:18:40,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7711 to 6404. [2025-02-05 17:18:40,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 5621 states have (on average 1.416296032734389) internal successors, (7961), 5654 states have internal predecessors, (7961), 449 states have call successors, (449), 308 states have call predecessors, (449), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2025-02-05 17:18:40,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 9007 transitions. [2025-02-05 17:18:40,842 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 9007 transitions. Word has length 142 [2025-02-05 17:18:40,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:40,844 INFO L471 AbstractCegarLoop]: Abstraction has 6404 states and 9007 transitions. [2025-02-05 17:18:40,844 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 3 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2025-02-05 17:18:40,844 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 9007 transitions. [2025-02-05 17:18:40,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-05 17:18:40,850 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:40,850 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:40,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:41,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:41,051 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:41,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:41,052 INFO L85 PathProgramCache]: Analyzing trace with hash 739576686, now seen corresponding path program 1 times [2025-02-05 17:18:41,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:41,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117256824] [2025-02-05 17:18:41,052 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:41,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:41,059 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 17:18:41,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 17:18:41,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:41,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:41,111 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-02-05 17:18:41,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117256824] [2025-02-05 17:18:41,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117256824] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:41,111 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [810509644] [2025-02-05 17:18:41,111 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:41,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:41,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:41,114 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:41,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-02-05 17:18:41,154 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 17:18:41,187 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 17:18:41,187 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:41,187 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:41,189 INFO L256 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-05 17:18:41,191 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:41,203 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2025-02-05 17:18:41,203 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:41,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [810509644] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:41,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:41,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2025-02-05 17:18:41,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147768103] [2025-02-05 17:18:41,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:41,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:41,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:41,205 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:41,205 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:41,205 INFO L87 Difference]: Start difference. First operand 6404 states and 9007 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:41,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:41,415 INFO L93 Difference]: Finished difference Result 10045 states and 13316 transitions. [2025-02-05 17:18:41,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:41,416 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) Word has length 161 [2025-02-05 17:18:41,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:41,434 INFO L225 Difference]: With dead ends: 10045 [2025-02-05 17:18:41,435 INFO L226 Difference]: Without dead ends: 6493 [2025-02-05 17:18:41,443 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-02-05 17:18:41,444 INFO L435 NwaCegarLoop]: 4112 mSDtfsCounter, 4074 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4074 SdHoareTripleChecker+Valid, 4232 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:41,444 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4074 Valid, 4232 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:41,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6493 states. [2025-02-05 17:18:41,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6493 to 6404. [2025-02-05 17:18:41,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6404 states, 5621 states have (on average 1.409357765522149) internal successors, (7922), 5654 states have internal predecessors, (7922), 449 states have call successors, (449), 308 states have call predecessors, (449), 332 states have return successors, (597), 445 states have call predecessors, (597), 449 states have call successors, (597) [2025-02-05 17:18:41,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6404 states to 6404 states and 8968 transitions. [2025-02-05 17:18:41,661 INFO L78 Accepts]: Start accepts. Automaton has 6404 states and 8968 transitions. Word has length 161 [2025-02-05 17:18:41,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:41,661 INFO L471 AbstractCegarLoop]: Abstraction has 6404 states and 8968 transitions. [2025-02-05 17:18:41,661 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (14), 3 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:41,661 INFO L276 IsEmpty]: Start isEmpty. Operand 6404 states and 8968 transitions. [2025-02-05 17:18:41,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2025-02-05 17:18:41,668 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:41,668 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:41,677 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-02-05 17:18:41,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2025-02-05 17:18:41,871 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:41,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:41,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1702566828, now seen corresponding path program 1 times [2025-02-05 17:18:41,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:41,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652507390] [2025-02-05 17:18:41,872 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:41,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:41,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 161 statements into 1 equivalence classes. [2025-02-05 17:18:41,880 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 161 of 161 statements. [2025-02-05 17:18:41,880 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:41,880 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:41,900 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2025-02-05 17:18:41,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:41,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652507390] [2025-02-05 17:18:41,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652507390] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:41,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:41,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:18:41,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549295452] [2025-02-05 17:18:41,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:41,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:41,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:41,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:41,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:41,902 INFO L87 Difference]: Start difference. First operand 6404 states and 8968 transitions. Second operand has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-02-05 17:18:42,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:42,094 INFO L93 Difference]: Finished difference Result 9958 states and 13103 transitions. [2025-02-05 17:18:42,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:42,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 161 [2025-02-05 17:18:42,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:42,109 INFO L225 Difference]: With dead ends: 9958 [2025-02-05 17:18:42,109 INFO L226 Difference]: Without dead ends: 5689 [2025-02-05 17:18:42,116 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:42,117 INFO L435 NwaCegarLoop]: 4094 mSDtfsCounter, 131 mSDsluCounter, 3958 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 8052 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:42,117 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 8052 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:42,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2025-02-05 17:18:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5689. [2025-02-05 17:18:42,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5689 states, 5048 states have (on average 1.441362916006339) internal successors, (7276), 5075 states have internal predecessors, (7276), 365 states have call successors, (365), 254 states have call predecessors, (365), 274 states have return successors, (473), 361 states have call predecessors, (473), 365 states have call successors, (473) [2025-02-05 17:18:42,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5689 states to 5689 states and 8114 transitions. [2025-02-05 17:18:42,303 INFO L78 Accepts]: Start accepts. Automaton has 5689 states and 8114 transitions. Word has length 161 [2025-02-05 17:18:42,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:42,304 INFO L471 AbstractCegarLoop]: Abstraction has 5689 states and 8114 transitions. [2025-02-05 17:18:42,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.0) internal successors, (72), 3 states have internal predecessors, (72), 3 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2025-02-05 17:18:42,304 INFO L276 IsEmpty]: Start isEmpty. Operand 5689 states and 8114 transitions. [2025-02-05 17:18:42,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2025-02-05 17:18:42,308 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:42,308 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:42,309 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2025-02-05 17:18:42,309 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:42,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:42,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1324895525, now seen corresponding path program 1 times [2025-02-05 17:18:42,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:42,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109926427] [2025-02-05 17:18:42,309 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:42,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:42,315 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-05 17:18:42,317 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-05 17:18:42,317 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:42,317 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:42,366 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-02-05 17:18:42,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:42,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109926427] [2025-02-05 17:18:42,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109926427] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:42,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609951459] [2025-02-05 17:18:42,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:42,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:42,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:42,369 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:42,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-02-05 17:18:42,414 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 163 statements into 1 equivalence classes. [2025-02-05 17:18:42,447 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 163 of 163 statements. [2025-02-05 17:18:42,448 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:42,448 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:42,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-05 17:18:42,451 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:42,481 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2025-02-05 17:18:42,482 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:42,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609951459] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:42,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:42,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2025-02-05 17:18:42,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967987181] [2025-02-05 17:18:42,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:42,483 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-05 17:18:42,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:42,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-05 17:18:42,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 17:18:42,483 INFO L87 Difference]: Start difference. First operand 5689 states and 8114 transitions. Second operand has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 17:18:42,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:42,630 INFO L93 Difference]: Finished difference Result 8164 states and 10985 transitions. [2025-02-05 17:18:42,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-05 17:18:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) Word has length 163 [2025-02-05 17:18:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:42,645 INFO L225 Difference]: With dead ends: 8164 [2025-02-05 17:18:42,645 INFO L226 Difference]: Without dead ends: 4612 [2025-02-05 17:18:42,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2025-02-05 17:18:42,653 INFO L435 NwaCegarLoop]: 4092 mSDtfsCounter, 0 mSDsluCounter, 16359 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20451 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:42,653 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20451 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:42,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4612 states. [2025-02-05 17:18:42,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4612 to 4578. [2025-02-05 17:18:42,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4578 states, 4181 states have (on average 1.5005979430758192) internal successors, (6274), 4190 states have internal predecessors, (6274), 217 states have call successors, (217), 151 states have call predecessors, (217), 178 states have return successors, (297), 236 states have call predecessors, (297), 217 states have call successors, (297) [2025-02-05 17:18:42,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4578 states to 4578 states and 6788 transitions. [2025-02-05 17:18:42,919 INFO L78 Accepts]: Start accepts. Automaton has 4578 states and 6788 transitions. Word has length 163 [2025-02-05 17:18:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:42,920 INFO L471 AbstractCegarLoop]: Abstraction has 4578 states and 6788 transitions. [2025-02-05 17:18:42,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.333333333333332) internal successors, (110), 5 states have internal predecessors, (110), 2 states have call successors, (14), 2 states have call predecessors, (14), 3 states have return successors, (15), 3 states have call predecessors, (15), 2 states have call successors, (15) [2025-02-05 17:18:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 4578 states and 6788 transitions. [2025-02-05 17:18:42,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-02-05 17:18:42,926 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:42,926 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:42,933 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:43,126 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2025-02-05 17:18:43,128 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:43,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:43,128 INFO L85 PathProgramCache]: Analyzing trace with hash -386164507, now seen corresponding path program 1 times [2025-02-05 17:18:43,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:43,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732300833] [2025-02-05 17:18:43,129 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:43,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:43,136 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-05 17:18:43,138 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-05 17:18:43,138 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:43,138 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:43,204 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-02-05 17:18:43,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:43,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732300833] [2025-02-05 17:18:43,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732300833] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:43,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765547778] [2025-02-05 17:18:43,205 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:43,205 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:43,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:43,207 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:43,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-02-05 17:18:43,252 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-05 17:18:43,292 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-05 17:18:43,292 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:43,293 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:43,296 INFO L256 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 17:18:43,298 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:43,321 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2025-02-05 17:18:43,321 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:43,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765547778] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:43,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:43,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2025-02-05 17:18:43,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484921595] [2025-02-05 17:18:43,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:43,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:43,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:43,323 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:43,323 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 17:18:43,324 INFO L87 Difference]: Start difference. First operand 4578 states and 6788 transitions. Second operand has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:43,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:43,466 INFO L93 Difference]: Finished difference Result 5638 states and 8022 transitions. [2025-02-05 17:18:43,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 17:18:43,466 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 169 [2025-02-05 17:18:43,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:43,477 INFO L225 Difference]: With dead ends: 5638 [2025-02-05 17:18:43,477 INFO L226 Difference]: Without dead ends: 3233 [2025-02-05 17:18:43,482 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2025-02-05 17:18:43,482 INFO L435 NwaCegarLoop]: 4092 mSDtfsCounter, 0 mSDsluCounter, 12270 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16362 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:43,483 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16362 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:43,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3233 states. [2025-02-05 17:18:43,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3233 to 3233. [2025-02-05 17:18:43,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3233 states, 3046 states have (on average 1.6316480630334866) internal successors, (4970), 3054 states have internal predecessors, (4970), 95 states have call successors, (95), 70 states have call predecessors, (95), 90 states have return successors, (122), 108 states have call predecessors, (122), 95 states have call successors, (122) [2025-02-05 17:18:43,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3233 states to 3233 states and 5187 transitions. [2025-02-05 17:18:43,604 INFO L78 Accepts]: Start accepts. Automaton has 3233 states and 5187 transitions. Word has length 169 [2025-02-05 17:18:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:43,604 INFO L471 AbstractCegarLoop]: Abstraction has 3233 states and 5187 transitions. [2025-02-05 17:18:43,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.2) internal successors, (101), 5 states have internal predecessors, (101), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:43,604 INFO L276 IsEmpty]: Start isEmpty. Operand 3233 states and 5187 transitions. [2025-02-05 17:18:43,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2025-02-05 17:18:43,607 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:43,607 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:43,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-02-05 17:18:43,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2025-02-05 17:18:43,810 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:43,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:43,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1206360488, now seen corresponding path program 1 times [2025-02-05 17:18:43,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:43,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043809173] [2025-02-05 17:18:43,811 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:43,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:43,820 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-05 17:18:43,823 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-05 17:18:43,823 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:43,823 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:43,888 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 101 trivial. 0 not checked. [2025-02-05 17:18:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1043809173] [2025-02-05 17:18:43,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1043809173] provided 0 perfect and 1 imperfect interpolant sequences [2025-02-05 17:18:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [468905465] [2025-02-05 17:18:43,888 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:43,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:43,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-05 17:18:43,891 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-05 17:18:43,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-02-05 17:18:43,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 169 statements into 1 equivalence classes. [2025-02-05 17:18:43,974 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 169 of 169 statements. [2025-02-05 17:18:43,974 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:43,975 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:43,976 INFO L256 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-02-05 17:18:43,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-05 17:18:43,990 INFO L134 CoverageAnalysis]: Checked inductivity of 123 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2025-02-05 17:18:43,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-05 17:18:43,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [468905465] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:43,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-02-05 17:18:43,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2025-02-05 17:18:43,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610788499] [2025-02-05 17:18:43,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:43,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-02-05 17:18:43,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:43,992 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-02-05 17:18:43,992 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 17:18:43,992 INFO L87 Difference]: Start difference. First operand 3233 states and 5187 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:44,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:44,060 INFO L93 Difference]: Finished difference Result 3747 states and 5769 transitions. [2025-02-05 17:18:44,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-05 17:18:44,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) Word has length 169 [2025-02-05 17:18:44,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:44,067 INFO L225 Difference]: With dead ends: 3747 [2025-02-05 17:18:44,068 INFO L226 Difference]: Without dead ends: 2123 [2025-02-05 17:18:44,070 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-02-05 17:18:44,071 INFO L435 NwaCegarLoop]: 4090 mSDtfsCounter, 0 mSDsluCounter, 12264 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 16354 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:44,071 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 16354 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-02-05 17:18:44,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2123 states. [2025-02-05 17:18:44,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2123 to 2123. [2025-02-05 17:18:44,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2123 states, 2122 states have (on average 1.8656927426955703) internal successors, (3959), 2122 states have internal predecessors, (3959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:44,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2123 states to 2123 states and 3959 transitions. [2025-02-05 17:18:44,094 INFO L78 Accepts]: Start accepts. Automaton has 2123 states and 3959 transitions. Word has length 169 [2025-02-05 17:18:44,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:44,095 INFO L471 AbstractCegarLoop]: Abstraction has 2123 states and 3959 transitions. [2025-02-05 17:18:44,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 2 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 2 states have call predecessors, (14), 2 states have call successors, (14) [2025-02-05 17:18:44,095 INFO L276 IsEmpty]: Start isEmpty. Operand 2123 states and 3959 transitions. [2025-02-05 17:18:44,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1679 [2025-02-05 17:18:44,131 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:44,131 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:44,137 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-02-05 17:18:44,332 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,14 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-05 17:18:44,335 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:44,335 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:44,336 INFO L85 PathProgramCache]: Analyzing trace with hash -1871328477, now seen corresponding path program 1 times [2025-02-05 17:18:44,336 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:44,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143463271] [2025-02-05 17:18:44,336 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:44,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:44,466 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1678 statements into 1 equivalence classes. [2025-02-05 17:18:44,605 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1678 of 1678 statements. [2025-02-05 17:18:44,606 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:44,606 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:45,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:45,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:45,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143463271] [2025-02-05 17:18:45,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143463271] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:45,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:45,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 17:18:45,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095449355] [2025-02-05 17:18:45,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:45,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:45,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:45,924 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:45,924 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:45,924 INFO L87 Difference]: Start difference. First operand 2123 states and 3959 transitions. Second operand has 3 states, 3 states have (on average 559.3333333333334) internal successors, (1678), 2 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:50,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:50,511 INFO L93 Difference]: Finished difference Result 6047 states and 11367 transitions. [2025-02-05 17:18:50,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:50,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 559.3333333333334) internal successors, (1678), 2 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1678 [2025-02-05 17:18:50,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:50,522 INFO L225 Difference]: With dead ends: 6047 [2025-02-05 17:18:50,522 INFO L226 Difference]: Without dead ends: 3927 [2025-02-05 17:18:50,525 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:50,525 INFO L435 NwaCegarLoop]: 1218 mSDtfsCounter, 446 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 5638 mSolverCounterSat, 1654 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 1390 SdHoareTripleChecker+Invalid, 7292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1654 IncrementalHoareTripleChecker+Valid, 5638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:50,525 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 1390 Invalid, 7292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1654 Valid, 5638 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2025-02-05 17:18:50,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3927 states. [2025-02-05 17:18:50,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3927 to 3907. [2025-02-05 17:18:50,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3907 states, 3906 states have (on average 1.7424475166410651) internal successors, (6806), 3906 states have internal predecessors, (6806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:50,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3907 states to 3907 states and 6806 transitions. [2025-02-05 17:18:50,567 INFO L78 Accepts]: Start accepts. Automaton has 3907 states and 6806 transitions. Word has length 1678 [2025-02-05 17:18:50,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:50,569 INFO L471 AbstractCegarLoop]: Abstraction has 3907 states and 6806 transitions. [2025-02-05 17:18:50,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 559.3333333333334) internal successors, (1678), 2 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:50,569 INFO L276 IsEmpty]: Start isEmpty. Operand 3907 states and 6806 transitions. [2025-02-05 17:18:50,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1684 [2025-02-05 17:18:50,624 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:50,625 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:50,625 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2025-02-05 17:18:50,625 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:50,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:50,626 INFO L85 PathProgramCache]: Analyzing trace with hash 1106416456, now seen corresponding path program 1 times [2025-02-05 17:18:50,626 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:50,626 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233423296] [2025-02-05 17:18:50,626 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:50,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:50,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1683 statements into 1 equivalence classes. [2025-02-05 17:18:50,775 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1683 of 1683 statements. [2025-02-05 17:18:50,775 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:50,775 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:51,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:51,282 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233423296] [2025-02-05 17:18:51,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233423296] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:51,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:51,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 17:18:51,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907955141] [2025-02-05 17:18:51,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:51,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:18:51,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:51,284 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:18:51,284 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:51,285 INFO L87 Difference]: Start difference. First operand 3907 states and 6806 transitions. Second operand has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:55,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:18:55,423 INFO L93 Difference]: Finished difference Result 11243 states and 19738 transitions. [2025-02-05 17:18:55,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:18:55,424 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1683 [2025-02-05 17:18:55,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:18:55,439 INFO L225 Difference]: With dead ends: 11243 [2025-02-05 17:18:55,439 INFO L226 Difference]: Without dead ends: 7339 [2025-02-05 17:18:55,447 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:18:55,448 INFO L435 NwaCegarLoop]: 1551 mSDtfsCounter, 2707 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 4475 mSolverCounterSat, 2372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2707 SdHoareTripleChecker+Valid, 1700 SdHoareTripleChecker+Invalid, 6847 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2372 IncrementalHoareTripleChecker+Valid, 4475 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2025-02-05 17:18:55,448 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2707 Valid, 1700 Invalid, 6847 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2372 Valid, 4475 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2025-02-05 17:18:55,455 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7339 states. [2025-02-05 17:18:55,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7339 to 7337. [2025-02-05 17:18:55,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7337 states, 7336 states have (on average 1.5620229007633588) internal successors, (11459), 7336 states have internal predecessors, (11459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:55,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7337 states to 7337 states and 11459 transitions. [2025-02-05 17:18:55,523 INFO L78 Accepts]: Start accepts. Automaton has 7337 states and 11459 transitions. Word has length 1683 [2025-02-05 17:18:55,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:18:55,524 INFO L471 AbstractCegarLoop]: Abstraction has 7337 states and 11459 transitions. [2025-02-05 17:18:55,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 561.0) internal successors, (1683), 2 states have internal predecessors, (1683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:18:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand 7337 states and 11459 transitions. [2025-02-05 17:18:55,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1686 [2025-02-05 17:18:55,542 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:18:55,543 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:18:55,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2025-02-05 17:18:55,543 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:18:55,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:18:55,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1716461165, now seen corresponding path program 1 times [2025-02-05 17:18:55,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:18:55,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223615] [2025-02-05 17:18:55,544 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:18:55,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:18:55,673 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1685 statements into 1 equivalence classes. [2025-02-05 17:18:55,735 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1685 of 1685 statements. [2025-02-05 17:18:55,735 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:18:55,735 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:18:57,714 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:18:57,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:18:57,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223615] [2025-02-05 17:18:57,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223615] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:18:57,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:18:57,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:18:57,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312658777] [2025-02-05 17:18:57,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:18:57,717 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-05 17:18:57,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:18:57,719 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-05 17:18:57,719 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 17:18:57,719 INFO L87 Difference]: Start difference. First operand 7337 states and 11459 transitions. Second operand has 4 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:04,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:04,471 INFO L93 Difference]: Finished difference Result 23108 states and 36017 transitions. [2025-02-05 17:19:04,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-05 17:19:04,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1685 [2025-02-05 17:19:04,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:04,497 INFO L225 Difference]: With dead ends: 23108 [2025-02-05 17:19:04,497 INFO L226 Difference]: Without dead ends: 14122 [2025-02-05 17:19:04,505 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2025-02-05 17:19:04,508 INFO L435 NwaCegarLoop]: 1038 mSDtfsCounter, 3041 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 9244 mSolverCounterSat, 3792 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3041 SdHoareTripleChecker+Valid, 1307 SdHoareTripleChecker+Invalid, 13036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3792 IncrementalHoareTripleChecker+Valid, 9244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:04,508 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3041 Valid, 1307 Invalid, 13036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3792 Valid, 9244 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2025-02-05 17:19:04,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14122 states. [2025-02-05 17:19:04,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14122 to 14122. [2025-02-05 17:19:04,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14122 states, 14121 states have (on average 1.2858154521634446) internal successors, (18157), 14121 states have internal predecessors, (18157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14122 states to 14122 states and 18157 transitions. [2025-02-05 17:19:04,690 INFO L78 Accepts]: Start accepts. Automaton has 14122 states and 18157 transitions. Word has length 1685 [2025-02-05 17:19:04,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:04,691 INFO L471 AbstractCegarLoop]: Abstraction has 14122 states and 18157 transitions. [2025-02-05 17:19:04,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 421.25) internal successors, (1685), 3 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 14122 states and 18157 transitions. [2025-02-05 17:19:04,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1697 [2025-02-05 17:19:04,735 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:04,736 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:04,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2025-02-05 17:19:04,736 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:04,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:04,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1393357283, now seen corresponding path program 1 times [2025-02-05 17:19:04,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:04,738 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872235379] [2025-02-05 17:19:04,738 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:04,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:04,938 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1696 statements into 1 equivalence classes. [2025-02-05 17:19:05,035 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1696 of 1696 statements. [2025-02-05 17:19:05,035 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:05,035 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:05,939 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:19:05,940 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:05,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872235379] [2025-02-05 17:19:05,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872235379] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:05,940 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:05,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:19:05,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888283810] [2025-02-05 17:19:05,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:05,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:05,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:05,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:05,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:05,944 INFO L87 Difference]: Start difference. First operand 14122 states and 18157 transitions. Second operand has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 3 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:09,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:09,442 INFO L93 Difference]: Finished difference Result 41863 states and 53805 transitions. [2025-02-05 17:19:09,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:19:09,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 3 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1696 [2025-02-05 17:19:09,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:09,494 INFO L225 Difference]: With dead ends: 41863 [2025-02-05 17:19:09,494 INFO L226 Difference]: Without dead ends: 27744 [2025-02-05 17:19:09,510 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:09,511 INFO L435 NwaCegarLoop]: 3146 mSDtfsCounter, 281 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 4547 mSolverCounterSat, 1133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 3382 SdHoareTripleChecker+Invalid, 5680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1133 IncrementalHoareTripleChecker+Valid, 4547 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:09,511 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 3382 Invalid, 5680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1133 Valid, 4547 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2025-02-05 17:19:09,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27744 states. [2025-02-05 17:19:09,729 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27744 to 27737. [2025-02-05 17:19:09,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27737 states, 27736 states have (on average 1.190798961638304) internal successors, (33028), 27736 states have internal predecessors, (33028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:09,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27737 states to 27737 states and 33028 transitions. [2025-02-05 17:19:09,783 INFO L78 Accepts]: Start accepts. Automaton has 27737 states and 33028 transitions. Word has length 1696 [2025-02-05 17:19:09,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:09,785 INFO L471 AbstractCegarLoop]: Abstraction has 27737 states and 33028 transitions. [2025-02-05 17:19:09,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 565.3333333333334) internal successors, (1696), 3 states have internal predecessors, (1696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:09,785 INFO L276 IsEmpty]: Start isEmpty. Operand 27737 states and 33028 transitions. [2025-02-05 17:19:09,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1702 [2025-02-05 17:19:09,824 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:09,824 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:09,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2025-02-05 17:19:09,825 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:09,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:09,826 INFO L85 PathProgramCache]: Analyzing trace with hash 2126099708, now seen corresponding path program 1 times [2025-02-05 17:19:09,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:09,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107746832] [2025-02-05 17:19:09,826 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:09,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:09,959 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1701 statements into 1 equivalence classes. [2025-02-05 17:19:09,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1701 of 1701 statements. [2025-02-05 17:19:09,968 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:09,968 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:10,525 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:19:10,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:10,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107746832] [2025-02-05 17:19:10,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107746832] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:10,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:10,526 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 17:19:10,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796443413] [2025-02-05 17:19:10,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:10,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:10,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:10,533 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:10,533 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:10,534 INFO L87 Difference]: Start difference. First operand 27737 states and 33028 transitions. Second operand has 3 states, 3 states have (on average 567.0) internal successors, (1701), 2 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:14,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:14,044 INFO L93 Difference]: Finished difference Result 82638 states and 98345 transitions. [2025-02-05 17:19:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:19:14,045 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 567.0) internal successors, (1701), 2 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1701 [2025-02-05 17:19:14,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:14,129 INFO L225 Difference]: With dead ends: 82638 [2025-02-05 17:19:14,129 INFO L226 Difference]: Without dead ends: 54904 [2025-02-05 17:19:14,165 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:14,165 INFO L435 NwaCegarLoop]: 1272 mSDtfsCounter, 2196 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 4667 mSolverCounterSat, 910 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2196 SdHoareTripleChecker+Valid, 1442 SdHoareTripleChecker+Invalid, 5577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 910 IncrementalHoareTripleChecker+Valid, 4667 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:14,166 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2196 Valid, 1442 Invalid, 5577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [910 Valid, 4667 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-05 17:19:14,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54904 states. [2025-02-05 17:19:14,606 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54904 to 53204. [2025-02-05 17:19:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53204 states, 53203 states have (on average 1.1386200026314306) internal successors, (60578), 53203 states have internal predecessors, (60578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:14,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53204 states to 53204 states and 60578 transitions. [2025-02-05 17:19:14,696 INFO L78 Accepts]: Start accepts. Automaton has 53204 states and 60578 transitions. Word has length 1701 [2025-02-05 17:19:14,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:14,696 INFO L471 AbstractCegarLoop]: Abstraction has 53204 states and 60578 transitions. [2025-02-05 17:19:14,696 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 567.0) internal successors, (1701), 2 states have internal predecessors, (1701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:14,696 INFO L276 IsEmpty]: Start isEmpty. Operand 53204 states and 60578 transitions. [2025-02-05 17:19:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1807 [2025-02-05 17:19:14,748 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:14,748 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:14,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2025-02-05 17:19:14,749 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:14,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:14,750 INFO L85 PathProgramCache]: Analyzing trace with hash 1864986343, now seen corresponding path program 1 times [2025-02-05 17:19:14,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:14,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060494564] [2025-02-05 17:19:14,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:14,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:14,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1806 statements into 1 equivalence classes. [2025-02-05 17:19:14,897 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1806 of 1806 statements. [2025-02-05 17:19:14,898 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:14,898 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:16,667 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 144 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-05 17:19:16,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:16,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060494564] [2025-02-05 17:19:16,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060494564] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:16,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:16,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:19:16,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516360074] [2025-02-05 17:19:16,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:16,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:16,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:16,670 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:16,670 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:16,670 INFO L87 Difference]: Start difference. First operand 53204 states and 60578 transitions. Second operand has 3 states, 3 states have (on average 602.0) internal successors, (1806), 3 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:20,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:20,437 INFO L93 Difference]: Finished difference Result 126799 states and 144710 transitions. [2025-02-05 17:19:20,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:19:20,437 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 602.0) internal successors, (1806), 3 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1806 [2025-02-05 17:19:20,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:20,530 INFO L225 Difference]: With dead ends: 126799 [2025-02-05 17:19:20,530 INFO L226 Difference]: Without dead ends: 70202 [2025-02-05 17:19:20,583 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:20,583 INFO L435 NwaCegarLoop]: 3286 mSDtfsCounter, 1614 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 4832 mSolverCounterSat, 932 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1614 SdHoareTripleChecker+Valid, 3512 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 932 IncrementalHoareTripleChecker+Valid, 4832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:20,583 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1614 Valid, 3512 Invalid, 5764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [932 Valid, 4832 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-02-05 17:19:20,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70202 states. [2025-02-05 17:19:21,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70202 to 70188. [2025-02-05 17:19:21,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70188 states, 70187 states have (on average 1.107868978585778) internal successors, (77758), 70187 states have internal predecessors, (77758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:21,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70188 states to 70188 states and 77758 transitions. [2025-02-05 17:19:21,191 INFO L78 Accepts]: Start accepts. Automaton has 70188 states and 77758 transitions. Word has length 1806 [2025-02-05 17:19:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:21,192 INFO L471 AbstractCegarLoop]: Abstraction has 70188 states and 77758 transitions. [2025-02-05 17:19:21,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 602.0) internal successors, (1806), 3 states have internal predecessors, (1806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:21,192 INFO L276 IsEmpty]: Start isEmpty. Operand 70188 states and 77758 transitions. [2025-02-05 17:19:21,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1808 [2025-02-05 17:19:21,368 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:21,368 INFO L218 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:21,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2025-02-05 17:19:21,369 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:21,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:21,370 INFO L85 PathProgramCache]: Analyzing trace with hash -460671404, now seen corresponding path program 1 times [2025-02-05 17:19:21,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:21,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640457908] [2025-02-05 17:19:21,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:21,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:21,493 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1807 statements into 1 equivalence classes. [2025-02-05 17:19:21,503 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1807 of 1807 statements. [2025-02-05 17:19:21,503 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:21,503 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:22,113 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2025-02-05 17:19:22,113 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:22,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640457908] [2025-02-05 17:19:22,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [640457908] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:22,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:22,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-05 17:19:22,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711663720] [2025-02-05 17:19:22,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:22,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:22,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:22,116 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:22,116 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:22,116 INFO L87 Difference]: Start difference. First operand 70188 states and 77758 transitions. Second operand has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:25,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:25,827 INFO L93 Difference]: Finished difference Result 167565 states and 185674 transitions. [2025-02-05 17:19:25,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:19:25,828 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1807 [2025-02-05 17:19:25,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:25,936 INFO L225 Difference]: With dead ends: 167565 [2025-02-05 17:19:25,936 INFO L226 Difference]: Without dead ends: 97380 [2025-02-05 17:19:25,975 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:25,976 INFO L435 NwaCegarLoop]: 972 mSDtfsCounter, 2100 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4505 mSolverCounterSat, 1131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2100 SdHoareTripleChecker+Valid, 1104 SdHoareTripleChecker+Invalid, 5636 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1131 IncrementalHoareTripleChecker+Valid, 4505 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:25,976 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2100 Valid, 1104 Invalid, 5636 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1131 Valid, 4505 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2025-02-05 17:19:26,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97380 states. [2025-02-05 17:19:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97380 to 95664. [2025-02-05 17:19:26,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 95664 states, 95663 states have (on average 1.0744174863844955) internal successors, (102782), 95663 states have internal predecessors, (102782), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:26,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95664 states to 95664 states and 102782 transitions. [2025-02-05 17:19:26,828 INFO L78 Accepts]: Start accepts. Automaton has 95664 states and 102782 transitions. Word has length 1807 [2025-02-05 17:19:26,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:26,829 INFO L471 AbstractCegarLoop]: Abstraction has 95664 states and 102782 transitions. [2025-02-05 17:19:26,829 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 572.0) internal successors, (1716), 2 states have internal predecessors, (1716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:26,829 INFO L276 IsEmpty]: Start isEmpty. Operand 95664 states and 102782 transitions. [2025-02-05 17:19:26,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1917 [2025-02-05 17:19:26,897 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:26,897 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:26,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2025-02-05 17:19:26,898 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:26,898 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:26,899 INFO L85 PathProgramCache]: Analyzing trace with hash -1725980893, now seen corresponding path program 1 times [2025-02-05 17:19:26,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:26,899 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117950454] [2025-02-05 17:19:26,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:26,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:27,026 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 1916 statements into 1 equivalence classes. [2025-02-05 17:19:27,042 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 1916 of 1916 statements. [2025-02-05 17:19:27,042 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:27,042 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:28,969 INFO L134 CoverageAnalysis]: Checked inductivity of 445 backedges. 387 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 17:19:28,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:28,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117950454] [2025-02-05 17:19:28,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117950454] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:28,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:28,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:19:28,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491310137] [2025-02-05 17:19:28,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:28,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:28,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:28,972 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:28,972 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:28,973 INFO L87 Difference]: Start difference. First operand 95664 states and 102782 transitions. Second operand has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:33,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-02-05 17:19:33,070 INFO L93 Difference]: Finished difference Result 252532 states and 271881 transitions. [2025-02-05 17:19:33,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-05 17:19:33,070 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1916 [2025-02-05 17:19:33,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2025-02-05 17:19:33,260 INFO L225 Difference]: With dead ends: 252532 [2025-02-05 17:19:33,260 INFO L226 Difference]: Without dead ends: 155173 [2025-02-05 17:19:33,354 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:33,354 INFO L435 NwaCegarLoop]: 3367 mSDtfsCounter, 1790 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 5170 mSolverCounterSat, 823 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1790 SdHoareTripleChecker+Valid, 3586 SdHoareTripleChecker+Invalid, 5993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 823 IncrementalHoareTripleChecker+Valid, 5170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2025-02-05 17:19:33,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1790 Valid, 3586 Invalid, 5993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [823 Valid, 5170 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2025-02-05 17:19:33,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155173 states. [2025-02-05 17:19:34,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155173 to 153406. [2025-02-05 17:19:34,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153406 states, 153405 states have (on average 1.0581336983801048) internal successors, (162323), 153405 states have internal predecessors, (162323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:34,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153406 states to 153406 states and 162323 transitions. [2025-02-05 17:19:34,997 INFO L78 Accepts]: Start accepts. Automaton has 153406 states and 162323 transitions. Word has length 1916 [2025-02-05 17:19:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2025-02-05 17:19:34,998 INFO L471 AbstractCegarLoop]: Abstraction has 153406 states and 162323 transitions. [2025-02-05 17:19:34,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 620.0) internal successors, (1860), 3 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-05 17:19:34,998 INFO L276 IsEmpty]: Start isEmpty. Operand 153406 states and 162323 transitions. [2025-02-05 17:19:35,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2075 [2025-02-05 17:19:35,112 INFO L210 NwaCegarLoop]: Found error trace [2025-02-05 17:19:35,112 INFO L218 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-05 17:19:35,112 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2025-02-05 17:19:35,112 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2025-02-05 17:19:35,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-05 17:19:35,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1596617300, now seen corresponding path program 1 times [2025-02-05 17:19:35,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-05 17:19:35,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048360140] [2025-02-05 17:19:35,114 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-05 17:19:35,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-05 17:19:35,245 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2074 statements into 1 equivalence classes. [2025-02-05 17:19:35,269 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2074 of 2074 statements. [2025-02-05 17:19:35,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-05 17:19:35,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-05 17:19:36,682 INFO L134 CoverageAnalysis]: Checked inductivity of 641 backedges. 583 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2025-02-05 17:19:36,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-05 17:19:36,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048360140] [2025-02-05 17:19:36,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048360140] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-05 17:19:36,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-05 17:19:36,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-05 17:19:36,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349161255] [2025-02-05 17:19:36,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-05 17:19:36,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-05 17:19:36,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-05 17:19:36,685 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-05 17:19:36,685 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-05 17:19:36,685 INFO L87 Difference]: Start difference. First operand 153406 states and 162323 transitions. Second operand has 3 states, 3 states have (on average 672.6666666666666) internal successors, (2018), 3 states have internal predecessors, (2018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)