./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC --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 64bit --witnessprinter.graph.data.programhash 758991f0d89a190f1f68ca539598207b07194d7a826247321c50709700f4042e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 01:34:04,197 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 01:34:04,255 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-24 01:34:04,264 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 01:34:04,264 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 01:34:04,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 01:34:04,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 01:34:04,308 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 01:34:04,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 01:34:04,309 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 01:34:04,309 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 01:34:04,309 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 01:34:04,309 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 01:34:04,309 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 01:34:04,311 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 01:34:04,312 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 01:34:04,312 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 01:34:04,313 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:04,313 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 01:34:04,313 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:04,314 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 01:34:04,314 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 01:34:04,315 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 01:34:04,315 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 758991f0d89a190f1f68ca539598207b07194d7a826247321c50709700f4042e [2024-11-24 01:34:04,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 01:34:04,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 01:34:04,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 01:34:04,660 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 01:34:04,660 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 01:34:04,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c [2024-11-24 01:34:07,832 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/data/5c88ba190/339bf15b972043939fed0ff396a23a6b/FLAGaa1102700 [2024-11-24 01:34:08,385 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 01:34:08,386 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c [2024-11-24 01:34:08,418 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/data/5c88ba190/339bf15b972043939fed0ff396a23a6b/FLAGaa1102700 [2024-11-24 01:34:08,445 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/data/5c88ba190/339bf15b972043939fed0ff396a23a6b [2024-11-24 01:34:08,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 01:34:08,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 01:34:08,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:08,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 01:34:08,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 01:34:08,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:08" (1/1) ... [2024-11-24 01:34:08,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3602d393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:08, skipping insertion in model container [2024-11-24 01:34:08,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 01:34:08" (1/1) ... [2024-11-24 01:34:08,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 01:34:08,841 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c[1175,1188] [2024-11-24 01:34:09,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:09,729 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 01:34:09,740 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.needham.2.prop3-back-serstep.c[1175,1188] [2024-11-24 01:34:10,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 01:34:10,470 INFO L204 MainTranslator]: Completed translation [2024-11-24 01:34:10,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10 WrapperNode [2024-11-24 01:34:10,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 01:34:10,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:10,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 01:34:10,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 01:34:10,483 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:10,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:12,923 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 18708 [2024-11-24 01:34:12,924 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 01:34:12,927 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 01:34:12,927 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 01:34:12,927 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 01:34:12,938 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:12,938 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:13,312 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:13,640 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]. [2024-11-24 01:34:13,640 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:13,641 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,278 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,327 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,426 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 01:34:14,835 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 01:34:14,835 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 01:34:14,835 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 01:34:14,836 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (1/1) ... [2024-11-24 01:34:14,843 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 01:34:14,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 01:34:14,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 01:34:15,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f3c706ad-1041-44ce-933a-10523845c26b/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 01:34:15,124 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 01:34:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 01:34:15,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 01:34:15,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 01:34:16,212 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 01:34:16,215 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 01:35:03,013 INFO L? ?]: Removed 9947 outVars from TransFormulas that were not future-live. [2024-11-24 01:35:03,013 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 01:35:03,139 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 01:35:03,140 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-24 01:35:03,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:35:03 BoogieIcfgContainer [2024-11-24 01:35:03,140 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 01:35:03,144 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 01:35:03,144 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 01:35:03,149 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 01:35:03,149 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 01:34:08" (1/3) ... [2024-11-24 01:35:03,150 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fea45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:35:03, skipping insertion in model container [2024-11-24 01:35:03,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 01:34:10" (2/3) ... [2024-11-24 01:35:03,151 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fea45da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 01:35:03, skipping insertion in model container [2024-11-24 01:35:03,151 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 01:35:03" (3/3) ... [2024-11-24 01:35:03,153 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.needham.2.prop3-back-serstep.c [2024-11-24 01:35:03,170 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 01:35:03,174 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.needham.2.prop3-back-serstep.c that has 1 procedures, 6703 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-24 01:35:03,382 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 01:35:03,399 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;@6c1e9479, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 01:35:03,399 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-24 01:35:03,424 INFO L276 IsEmpty]: Start isEmpty. Operand has 6703 states, 6701 states have (on average 1.5036561707207878) internal successors, (10076), 6702 states have internal predecessors, (10076), 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) [2024-11-24 01:35:03,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2024-11-24 01:35:03,461 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:03,462 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:03,463 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:03,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash -695185611, now seen corresponding path program 1 times [2024-11-24 01:35:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:03,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630583904] [2024-11-24 01:35:03,479 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:03,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:04,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:07,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:07,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:07,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630583904] [2024-11-24 01:35:07,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630583904] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:07,064 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:07,064 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:35:07,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465938025] [2024-11-24 01:35:07,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:07,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:35:07,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:07,097 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:35:07,098 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:35:07,114 INFO L87 Difference]: Start difference. First operand has 6703 states, 6701 states have (on average 1.5036561707207878) internal successors, (10076), 6702 states have internal predecessors, (10076), 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) Second operand has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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) [2024-11-24 01:35:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:07,618 INFO L93 Difference]: Finished difference Result 13195 states and 19839 transitions. [2024-11-24 01:35:07,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:35:07,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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 529 [2024-11-24 01:35:07,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:07,678 INFO L225 Difference]: With dead ends: 13195 [2024-11-24 01:35:07,678 INFO L226 Difference]: Without dead ends: 6702 [2024-11-24 01:35:07,695 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 [2024-11-24 01:35:07,697 INFO L435 NwaCegarLoop]: 10070 mSDtfsCounter, 0 mSDsluCounter, 20134 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30204 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:07,702 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30204 Invalid, 11 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:07,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2024-11-24 01:35:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 6702. [2024-11-24 01:35:07,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6702 states, 6701 states have (on average 1.5033577078048053) internal successors, (10074), 6701 states have internal predecessors, (10074), 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) [2024-11-24 01:35:07,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6702 states to 6702 states and 10074 transitions. [2024-11-24 01:35:07,986 INFO L78 Accepts]: Start accepts. Automaton has 6702 states and 10074 transitions. Word has length 529 [2024-11-24 01:35:07,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:07,989 INFO L471 AbstractCegarLoop]: Abstraction has 6702 states and 10074 transitions. [2024-11-24 01:35:07,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.25) internal successors, (529), 4 states have internal predecessors, (529), 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) [2024-11-24 01:35:07,989 INFO L276 IsEmpty]: Start isEmpty. Operand 6702 states and 10074 transitions. [2024-11-24 01:35:08,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2024-11-24 01:35:08,002 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:08,003 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:08,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-24 01:35:08,003 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:08,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:08,005 INFO L85 PathProgramCache]: Analyzing trace with hash -74218902, now seen corresponding path program 1 times [2024-11-24 01:35:08,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:08,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564141804] [2024-11-24 01:35:08,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:08,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:08,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:09,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:09,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:09,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564141804] [2024-11-24 01:35:09,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564141804] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:09,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:09,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:35:09,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634768050] [2024-11-24 01:35:09,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:09,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:35:09,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:09,463 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:35:09,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:35:09,464 INFO L87 Difference]: Start difference. First operand 6702 states and 10074 transitions. Second operand has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2024-11-24 01:35:09,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:09,754 INFO L93 Difference]: Finished difference Result 13196 states and 19837 transitions. [2024-11-24 01:35:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:35:09,755 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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 530 [2024-11-24 01:35:09,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:09,780 INFO L225 Difference]: With dead ends: 13196 [2024-11-24 01:35:09,780 INFO L226 Difference]: Without dead ends: 6704 [2024-11-24 01:35:09,787 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:35:09,791 INFO L435 NwaCegarLoop]: 10070 mSDtfsCounter, 0 mSDsluCounter, 20130 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 30200 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:09,791 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 30200 Invalid, 15 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:09,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6704 states. [2024-11-24 01:35:09,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6704 to 6704. [2024-11-24 01:35:09,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6704 states, 6703 states have (on average 1.5032075190213336) internal successors, (10076), 6703 states have internal predecessors, (10076), 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) [2024-11-24 01:35:09,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6704 states to 6704 states and 10076 transitions. [2024-11-24 01:35:09,982 INFO L78 Accepts]: Start accepts. Automaton has 6704 states and 10076 transitions. Word has length 530 [2024-11-24 01:35:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:09,985 INFO L471 AbstractCegarLoop]: Abstraction has 6704 states and 10076 transitions. [2024-11-24 01:35:09,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 132.5) internal successors, (530), 4 states have internal predecessors, (530), 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) [2024-11-24 01:35:09,985 INFO L276 IsEmpty]: Start isEmpty. Operand 6704 states and 10076 transitions. [2024-11-24 01:35:09,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2024-11-24 01:35:09,998 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:10,000 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 01:35:10,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 01:35:10,000 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:10,001 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:10,002 INFO L85 PathProgramCache]: Analyzing trace with hash 896218798, now seen corresponding path program 1 times [2024-11-24 01:35:10,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:10,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706156117] [2024-11-24 01:35:10,006 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:10,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:10,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:11,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:11,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:11,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706156117] [2024-11-24 01:35:11,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706156117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:11,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:11,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:35:11,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184866559] [2024-11-24 01:35:11,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:11,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:35:11,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:11,820 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:35:11,821 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:35:11,821 INFO L87 Difference]: Start difference. First operand 6704 states and 10076 transitions. Second operand has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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) [2024-11-24 01:35:12,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:12,329 INFO L93 Difference]: Finished difference Result 19678 states and 29581 transitions. [2024-11-24 01:35:12,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:35:12,330 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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 531 [2024-11-24 01:35:12,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:12,397 INFO L225 Difference]: With dead ends: 19678 [2024-11-24 01:35:12,398 INFO L226 Difference]: Without dead ends: 13184 [2024-11-24 01:35:12,407 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 [2024-11-24 01:35:12,407 INFO L435 NwaCegarLoop]: 10068 mSDtfsCounter, 9533 mSDsluCounter, 29885 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9533 SdHoareTripleChecker+Valid, 39953 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:12,408 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9533 Valid, 39953 Invalid, 22 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:35:12,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13184 states. [2024-11-24 01:35:12,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13184 to 7538. [2024-11-24 01:35:12,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7538 states, 7537 states have (on average 1.502719915085578) internal successors, (11326), 7537 states have internal predecessors, (11326), 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) [2024-11-24 01:35:12,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7538 states to 7538 states and 11326 transitions. [2024-11-24 01:35:12,664 INFO L78 Accepts]: Start accepts. Automaton has 7538 states and 11326 transitions. Word has length 531 [2024-11-24 01:35:12,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:12,665 INFO L471 AbstractCegarLoop]: Abstraction has 7538 states and 11326 transitions. [2024-11-24 01:35:12,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 106.2) internal successors, (531), 5 states have internal predecessors, (531), 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) [2024-11-24 01:35:12,666 INFO L276 IsEmpty]: Start isEmpty. Operand 7538 states and 11326 transitions. [2024-11-24 01:35:12,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3679 [2024-11-24 01:35:12,943 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:12,945 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, 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, 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, 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, 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, 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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] [2024-11-24 01:35:12,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 01:35:12,946 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:12,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:12,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1496590886, now seen corresponding path program 1 times [2024-11-24 01:35:12,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:12,952 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031233864] [2024-11-24 01:35:12,953 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:12,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:20,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:29,908 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:29,908 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:29,908 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031233864] [2024-11-24 01:35:29,908 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031233864] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:29,908 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:29,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:29,909 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219639474] [2024-11-24 01:35:29,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:29,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:29,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:29,918 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:29,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:29,920 INFO L87 Difference]: Start difference. First operand 7538 states and 11326 transitions. Second operand has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:30,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:30,106 INFO L93 Difference]: Finished difference Result 14033 states and 21090 transitions. [2024-11-24 01:35:30,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:30,108 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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 3678 [2024-11-24 01:35:30,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:30,411 INFO L225 Difference]: With dead ends: 14033 [2024-11-24 01:35:30,411 INFO L226 Difference]: Without dead ends: 7539 [2024-11-24 01:35:30,416 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 [2024-11-24 01:35:30,417 INFO L435 NwaCegarLoop]: 10071 mSDtfsCounter, 0 mSDsluCounter, 10065 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:30,421 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:30,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2024-11-24 01:35:30,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 7539. [2024-11-24 01:35:30,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7539 states, 7538 states have (on average 1.5026532236667551) internal successors, (11327), 7538 states have internal predecessors, (11327), 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) [2024-11-24 01:35:30,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7539 states to 7539 states and 11327 transitions. [2024-11-24 01:35:30,599 INFO L78 Accepts]: Start accepts. Automaton has 7539 states and 11327 transitions. Word has length 3678 [2024-11-24 01:35:30,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:30,602 INFO L471 AbstractCegarLoop]: Abstraction has 7539 states and 11327 transitions. [2024-11-24 01:35:30,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:30,603 INFO L276 IsEmpty]: Start isEmpty. Operand 7539 states and 11327 transitions. [2024-11-24 01:35:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3679 [2024-11-24 01:35:30,792 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:30,797 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-11-24 01:35:30,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 01:35:30,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:30,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:30,802 INFO L85 PathProgramCache]: Analyzing trace with hash -397385717, now seen corresponding path program 1 times [2024-11-24 01:35:30,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:30,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [64884468] [2024-11-24 01:35:30,808 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:30,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:36,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:43,884 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:43,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:43,888 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [64884468] [2024-11-24 01:35:43,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [64884468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:43,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:43,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:43,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059567387] [2024-11-24 01:35:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:43,897 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:43,897 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:43,903 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:43,903 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:43,905 INFO L87 Difference]: Start difference. First operand 7539 states and 11327 transitions. Second operand has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:44,172 INFO L93 Difference]: Finished difference Result 14035 states and 21092 transitions. [2024-11-24 01:35:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:44,175 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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 3678 [2024-11-24 01:35:44,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:44,192 INFO L225 Difference]: With dead ends: 14035 [2024-11-24 01:35:44,192 INFO L226 Difference]: Without dead ends: 7540 [2024-11-24 01:35:44,201 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 [2024-11-24 01:35:44,203 INFO L435 NwaCegarLoop]: 10071 mSDtfsCounter, 0 mSDsluCounter, 10065 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:44,204 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-24 01:35:44,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7540 states. [2024-11-24 01:35:44,419 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7540 to 7540. [2024-11-24 01:35:44,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7540 states, 7539 states have (on average 1.5025865499403104) internal successors, (11328), 7539 states have internal predecessors, (11328), 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) [2024-11-24 01:35:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7540 states to 7540 states and 11328 transitions. [2024-11-24 01:35:44,445 INFO L78 Accepts]: Start accepts. Automaton has 7540 states and 11328 transitions. Word has length 3678 [2024-11-24 01:35:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:44,447 INFO L471 AbstractCegarLoop]: Abstraction has 7540 states and 11328 transitions. [2024-11-24 01:35:44,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:44,448 INFO L276 IsEmpty]: Start isEmpty. Operand 7540 states and 11328 transitions. [2024-11-24 01:35:44,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3679 [2024-11-24 01:35:44,833 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:44,839 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-11-24 01:35:44,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-24 01:35:44,844 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:44,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:44,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1975847034, now seen corresponding path program 1 times [2024-11-24 01:35:44,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:44,852 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426954467] [2024-11-24 01:35:44,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:44,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:35:50,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:35:57,814 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:35:57,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:35:57,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426954467] [2024-11-24 01:35:57,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426954467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:35:57,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:35:57,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 01:35:57,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656022971] [2024-11-24 01:35:57,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:35:57,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 01:35:57,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:35:57,822 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 01:35:57,829 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 01:35:57,830 INFO L87 Difference]: Start difference. First operand 7540 states and 11328 transitions. Second operand has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:58,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:35:58,274 INFO L93 Difference]: Finished difference Result 14037 states and 21094 transitions. [2024-11-24 01:35:58,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 01:35:58,275 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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 3678 [2024-11-24 01:35:58,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:35:58,309 INFO L225 Difference]: With dead ends: 14037 [2024-11-24 01:35:58,312 INFO L226 Difference]: Without dead ends: 7541 [2024-11-24 01:35:58,326 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 [2024-11-24 01:35:58,331 INFO L435 NwaCegarLoop]: 10071 mSDtfsCounter, 0 mSDsluCounter, 10065 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 20136 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-24 01:35:58,331 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 20136 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-24 01:35:58,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7541 states. [2024-11-24 01:35:58,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7541 to 7541. [2024-11-24 01:35:58,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7541 states, 7540 states have (on average 1.5025198938992042) internal successors, (11329), 7540 states have internal predecessors, (11329), 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) [2024-11-24 01:35:58,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7541 states to 7541 states and 11329 transitions. [2024-11-24 01:35:58,562 INFO L78 Accepts]: Start accepts. Automaton has 7541 states and 11329 transitions. Word has length 3678 [2024-11-24 01:35:58,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:35:58,567 INFO L471 AbstractCegarLoop]: Abstraction has 7541 states and 11329 transitions. [2024-11-24 01:35:58,568 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1226.0) internal successors, (3678), 3 states have internal predecessors, (3678), 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) [2024-11-24 01:35:58,568 INFO L276 IsEmpty]: Start isEmpty. Operand 7541 states and 11329 transitions. [2024-11-24 01:35:58,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3679 [2024-11-24 01:35:58,720 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:35:58,723 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 01:35:58,723 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:35:58,729 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:35:58,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1633878933, now seen corresponding path program 1 times [2024-11-24 01:35:58,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:35:58,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597029312] [2024-11-24 01:35:58,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:35:58,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:14,080 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-24 01:36:14,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:14,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597029312] [2024-11-24 01:36:14,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597029312] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:14,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:14,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:36:14,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129208041] [2024-11-24 01:36:14,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:14,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:36:14,085 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:14,087 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:36:14,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:14,089 INFO L87 Difference]: Start difference. First operand 7541 states and 11329 transitions. Second operand has 5 states, 5 states have (on average 652.6) internal successors, (3263), 5 states have internal predecessors, (3263), 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) [2024-11-24 01:36:14,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:14,284 INFO L93 Difference]: Finished difference Result 14042 states and 21099 transitions. [2024-11-24 01:36:14,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:36:14,285 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 652.6) internal successors, (3263), 5 states have internal predecessors, (3263), 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 3678 [2024-11-24 01:36:14,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:14,304 INFO L225 Difference]: With dead ends: 14042 [2024-11-24 01:36:14,305 INFO L226 Difference]: Without dead ends: 7545 [2024-11-24 01:36:14,310 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:14,311 INFO L435 NwaCegarLoop]: 10070 mSDtfsCounter, 0 mSDsluCounter, 30194 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 40264 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:14,311 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 40264 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:36:14,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7545 states. [2024-11-24 01:36:14,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7545 to 7541. [2024-11-24 01:36:14,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7541 states, 7540 states have (on average 1.5025198938992042) internal successors, (11329), 7540 states have internal predecessors, (11329), 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) [2024-11-24 01:36:14,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7541 states to 7541 states and 11329 transitions. [2024-11-24 01:36:14,573 INFO L78 Accepts]: Start accepts. Automaton has 7541 states and 11329 transitions. Word has length 3678 [2024-11-24 01:36:14,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:14,576 INFO L471 AbstractCegarLoop]: Abstraction has 7541 states and 11329 transitions. [2024-11-24 01:36:14,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 652.6) internal successors, (3263), 5 states have internal predecessors, (3263), 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) [2024-11-24 01:36:14,578 INFO L276 IsEmpty]: Start isEmpty. Operand 7541 states and 11329 transitions. [2024-11-24 01:36:14,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3680 [2024-11-24 01:36:14,685 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:14,687 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-11-24 01:36:14,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-24 01:36:14,688 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:14,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:14,691 INFO L85 PathProgramCache]: Analyzing trace with hash 1798250836, now seen corresponding path program 1 times [2024-11-24 01:36:14,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:14,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119603524] [2024-11-24 01:36:14,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:14,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:29,551 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:29,552 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:29,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119603524] [2024-11-24 01:36:29,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119603524] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:29,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:29,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:36:29,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970297169] [2024-11-24 01:36:29,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:29,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:36:29,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:29,562 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:36:29,562 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:36:29,564 INFO L87 Difference]: Start difference. First operand 7541 states and 11329 transitions. Second operand has 4 states, 4 states have (on average 919.75) internal successors, (3679), 4 states have internal predecessors, (3679), 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) [2024-11-24 01:36:30,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:30,993 INFO L93 Difference]: Finished difference Result 14040 states and 21096 transitions. [2024-11-24 01:36:30,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:36:30,995 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 919.75) internal successors, (3679), 4 states have internal predecessors, (3679), 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 3679 [2024-11-24 01:36:30,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:31,012 INFO L225 Difference]: With dead ends: 14040 [2024-11-24 01:36:31,012 INFO L226 Difference]: Without dead ends: 7541 [2024-11-24 01:36:31,018 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:31,019 INFO L435 NwaCegarLoop]: 9741 mSDtfsCounter, 9536 mSDsluCounter, 9737 mSDsCounter, 0 mSdLazyCounter, 654 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9536 SdHoareTripleChecker+Valid, 19478 SdHoareTripleChecker+Invalid, 654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:31,019 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9536 Valid, 19478 Invalid, 654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 654 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-24 01:36:31,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7541 states. [2024-11-24 01:36:31,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7541 to 7541. [2024-11-24 01:36:31,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7541 states, 7540 states have (on average 1.5023872679045094) internal successors, (11328), 7540 states have internal predecessors, (11328), 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) [2024-11-24 01:36:31,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7541 states to 7541 states and 11328 transitions. [2024-11-24 01:36:31,220 INFO L78 Accepts]: Start accepts. Automaton has 7541 states and 11328 transitions. Word has length 3679 [2024-11-24 01:36:31,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:31,221 INFO L471 AbstractCegarLoop]: Abstraction has 7541 states and 11328 transitions. [2024-11-24 01:36:31,222 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 919.75) internal successors, (3679), 4 states have internal predecessors, (3679), 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) [2024-11-24 01:36:31,222 INFO L276 IsEmpty]: Start isEmpty. Operand 7541 states and 11328 transitions. [2024-11-24 01:36:31,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3681 [2024-11-24 01:36:31,475 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:31,482 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-11-24 01:36:31,482 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 01:36:31,482 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:31,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:31,491 INFO L85 PathProgramCache]: Analyzing trace with hash 317942438, now seen corresponding path program 1 times [2024-11-24 01:36:31,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:31,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229692510] [2024-11-24 01:36:31,495 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:31,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:37,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:44,069 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:44,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:44,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229692510] [2024-11-24 01:36:44,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229692510] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:44,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:44,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:36:44,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282215477] [2024-11-24 01:36:44,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:44,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:36:44,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:44,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:36:44,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:36:44,080 INFO L87 Difference]: Start difference. First operand 7541 states and 11328 transitions. Second operand has 4 states, 4 states have (on average 920.0) internal successors, (3680), 4 states have internal predecessors, (3680), 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) [2024-11-24 01:36:45,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:45,816 INFO L93 Difference]: Finished difference Result 13989 states and 21043 transitions. [2024-11-24 01:36:45,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:36:45,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 920.0) internal successors, (3680), 4 states have internal predecessors, (3680), 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 3680 [2024-11-24 01:36:45,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:45,834 INFO L225 Difference]: With dead ends: 13989 [2024-11-24 01:36:45,837 INFO L226 Difference]: Without dead ends: 7490 [2024-11-24 01:36:45,842 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:36:45,845 INFO L435 NwaCegarLoop]: 9461 mSDtfsCounter, 9418 mSDsluCounter, 9456 mSDsCounter, 0 mSdLazyCounter, 1009 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9418 SdHoareTripleChecker+Valid, 18917 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 1009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:45,846 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9418 Valid, 18917 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 1009 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-24 01:36:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7490 states. [2024-11-24 01:36:45,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7490 to 7490. [2024-11-24 01:36:45,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7490 states, 7489 states have (on average 1.4987314728268126) internal successors, (11224), 7489 states have internal predecessors, (11224), 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) [2024-11-24 01:36:45,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7490 states to 7490 states and 11224 transitions. [2024-11-24 01:36:45,976 INFO L78 Accepts]: Start accepts. Automaton has 7490 states and 11224 transitions. Word has length 3680 [2024-11-24 01:36:45,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:45,978 INFO L471 AbstractCegarLoop]: Abstraction has 7490 states and 11224 transitions. [2024-11-24 01:36:45,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 920.0) internal successors, (3680), 4 states have internal predecessors, (3680), 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) [2024-11-24 01:36:45,979 INFO L276 IsEmpty]: Start isEmpty. Operand 7490 states and 11224 transitions. [2024-11-24 01:36:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3682 [2024-11-24 01:36:46,129 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:46,131 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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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] [2024-11-24 01:36:46,131 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-24 01:36:46,132 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:46,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:46,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2130497524, now seen corresponding path program 1 times [2024-11-24 01:36:46,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:46,136 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013847563] [2024-11-24 01:36:46,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:46,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:36:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:36:58,240 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:36:58,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:36:58,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013847563] [2024-11-24 01:36:58,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013847563] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:36:58,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:36:58,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:36:58,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021163873] [2024-11-24 01:36:58,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:36:58,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:36:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:36:58,249 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:36:58,249 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:36:58,250 INFO L87 Difference]: Start difference. First operand 7490 states and 11224 transitions. Second operand has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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) [2024-11-24 01:36:58,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:36:58,468 INFO L93 Difference]: Finished difference Result 13939 states and 20888 transitions. [2024-11-24 01:36:58,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:36:58,470 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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 3681 [2024-11-24 01:36:58,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:36:58,485 INFO L225 Difference]: With dead ends: 13939 [2024-11-24 01:36:58,485 INFO L226 Difference]: Without dead ends: 7491 [2024-11-24 01:36:58,492 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:36:58,493 INFO L435 NwaCegarLoop]: 9944 mSDtfsCounter, 9432 mSDsluCounter, 19883 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9432 SdHoareTripleChecker+Valid, 29827 SdHoareTripleChecker+Invalid, 64 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:36:58,493 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9432 Valid, 29827 Invalid, 64 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:36:58,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2024-11-24 01:36:58,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7491. [2024-11-24 01:36:58,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7491 states, 7490 states have (on average 1.4986648865153538) internal successors, (11225), 7490 states have internal predecessors, (11225), 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) [2024-11-24 01:36:58,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 11225 transitions. [2024-11-24 01:36:58,608 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 11225 transitions. Word has length 3681 [2024-11-24 01:36:58,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:36:58,609 INFO L471 AbstractCegarLoop]: Abstraction has 7491 states and 11225 transitions. [2024-11-24 01:36:58,610 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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) [2024-11-24 01:36:58,610 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 11225 transitions. [2024-11-24 01:36:58,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3682 [2024-11-24 01:36:58,884 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:36:58,886 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-24 01:36:58,891 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:36:58,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:36:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1514503220, now seen corresponding path program 1 times [2024-11-24 01:36:58,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:36:58,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54141002] [2024-11-24 01:36:58,899 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:36:58,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:37:03,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:37:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:37:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:37:10,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54141002] [2024-11-24 01:37:10,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54141002] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:37:10,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:37:10,495 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:37:10,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437613889] [2024-11-24 01:37:10,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:37:10,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:37:10,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:10,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:37:10,501 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:37:10,503 INFO L87 Difference]: Start difference. First operand 7491 states and 11225 transitions. Second operand has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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) [2024-11-24 01:37:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:37:11,322 INFO L93 Difference]: Finished difference Result 13940 states and 20888 transitions. [2024-11-24 01:37:11,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:37:11,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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 3681 [2024-11-24 01:37:11,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:37:11,343 INFO L225 Difference]: With dead ends: 13940 [2024-11-24 01:37:11,343 INFO L226 Difference]: Without dead ends: 7491 [2024-11-24 01:37:11,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-24 01:37:11,350 INFO L435 NwaCegarLoop]: 9640 mSDtfsCounter, 19367 mSDsluCounter, 9637 mSDsCounter, 0 mSdLazyCounter, 646 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19367 SdHoareTripleChecker+Valid, 19277 SdHoareTripleChecker+Invalid, 647 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 646 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-24 01:37:11,350 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [19367 Valid, 19277 Invalid, 647 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 646 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-24 01:37:11,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2024-11-24 01:37:11,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7491. [2024-11-24 01:37:11,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7491 states, 7490 states have (on average 1.4985313751668892) internal successors, (11224), 7490 states have internal predecessors, (11224), 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) [2024-11-24 01:37:11,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 11224 transitions. [2024-11-24 01:37:11,457 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 11224 transitions. Word has length 3681 [2024-11-24 01:37:11,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:37:11,458 INFO L471 AbstractCegarLoop]: Abstraction has 7491 states and 11224 transitions. [2024-11-24 01:37:11,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.2) internal successors, (3681), 5 states have internal predecessors, (3681), 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) [2024-11-24 01:37:11,459 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 11224 transitions. [2024-11-24 01:37:11,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3683 [2024-11-24 01:37:11,692 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:37:11,694 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-24 01:37:11,695 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:37:11,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:37:11,698 INFO L85 PathProgramCache]: Analyzing trace with hash -1081041529, now seen corresponding path program 1 times [2024-11-24 01:37:11,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:37:11,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609934486] [2024-11-24 01:37:11,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:37:11,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:37:16,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:37:23,733 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:37:23,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:37:23,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609934486] [2024-11-24 01:37:23,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609934486] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:37:23,733 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:37:23,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-24 01:37:23,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286645470] [2024-11-24 01:37:23,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:37:23,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 01:37:23,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:23,744 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 01:37:23,744 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:37:23,746 INFO L87 Difference]: Start difference. First operand 7491 states and 11224 transitions. Second operand has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 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) [2024-11-24 01:37:24,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:37:24,978 INFO L93 Difference]: Finished difference Result 13940 states and 20886 transitions. [2024-11-24 01:37:24,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 01:37:24,979 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 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 3682 [2024-11-24 01:37:24,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:37:24,992 INFO L225 Difference]: With dead ends: 13940 [2024-11-24 01:37:24,992 INFO L226 Difference]: Without dead ends: 7491 [2024-11-24 01:37:24,999 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-24 01:37:25,000 INFO L435 NwaCegarLoop]: 9460 mSDtfsCounter, 9407 mSDsluCounter, 9454 mSDsCounter, 0 mSdLazyCounter, 1005 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9407 SdHoareTripleChecker+Valid, 18914 SdHoareTripleChecker+Invalid, 1006 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:37:25,000 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9407 Valid, 18914 Invalid, 1006 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1005 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-24 01:37:25,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7491 states. [2024-11-24 01:37:25,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7491 to 7491. [2024-11-24 01:37:25,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7491 states, 7490 states have (on average 1.49826435246996) internal successors, (11222), 7490 states have internal predecessors, (11222), 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) [2024-11-24 01:37:25,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7491 states to 7491 states and 11222 transitions. [2024-11-24 01:37:25,156 INFO L78 Accepts]: Start accepts. Automaton has 7491 states and 11222 transitions. Word has length 3682 [2024-11-24 01:37:25,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:37:25,158 INFO L471 AbstractCegarLoop]: Abstraction has 7491 states and 11222 transitions. [2024-11-24 01:37:25,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 920.5) internal successors, (3682), 4 states have internal predecessors, (3682), 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) [2024-11-24 01:37:25,159 INFO L276 IsEmpty]: Start isEmpty. Operand 7491 states and 11222 transitions. [2024-11-24 01:37:25,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3684 [2024-11-24 01:37:25,457 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:37:25,459 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-24 01:37:25,460 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:37:25,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:37:25,463 INFO L85 PathProgramCache]: Analyzing trace with hash -547253340, now seen corresponding path program 1 times [2024-11-24 01:37:25,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:37:25,463 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105142843] [2024-11-24 01:37:25,464 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:37:25,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 01:37:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 01:37:36,100 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 422 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 01:37:36,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 01:37:36,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105142843] [2024-11-24 01:37:36,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105142843] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 01:37:36,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 01:37:36,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-24 01:37:36,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13417815] [2024-11-24 01:37:36,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 01:37:36,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 01:37:36,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 01:37:36,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 01:37:36,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-24 01:37:36,110 INFO L87 Difference]: Start difference. First operand 7491 states and 11222 transitions. Second operand has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 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) [2024-11-24 01:37:36,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-24 01:37:36,392 INFO L93 Difference]: Finished difference Result 13941 states and 20884 transitions. [2024-11-24 01:37:36,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-24 01:37:36,393 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 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 3683 [2024-11-24 01:37:36,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-24 01:37:36,405 INFO L225 Difference]: With dead ends: 13941 [2024-11-24 01:37:36,405 INFO L226 Difference]: Without dead ends: 7492 [2024-11-24 01:37:36,412 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-24 01:37:36,413 INFO L435 NwaCegarLoop]: 9943 mSDtfsCounter, 9415 mSDsluCounter, 19881 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9415 SdHoareTripleChecker+Valid, 29824 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-24 01:37:36,413 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [9415 Valid, 29824 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-24 01:37:36,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7492 states. [2024-11-24 01:37:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7492 to 7492. [2024-11-24 01:37:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7492 states, 7491 states have (on average 1.4981978374048859) internal successors, (11223), 7491 states have internal predecessors, (11223), 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) [2024-11-24 01:37:36,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7492 states to 7492 states and 11223 transitions. [2024-11-24 01:37:36,580 INFO L78 Accepts]: Start accepts. Automaton has 7492 states and 11223 transitions. Word has length 3683 [2024-11-24 01:37:36,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-24 01:37:36,582 INFO L471 AbstractCegarLoop]: Abstraction has 7492 states and 11223 transitions. [2024-11-24 01:37:36,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 736.6) internal successors, (3683), 5 states have internal predecessors, (3683), 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) [2024-11-24 01:37:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7492 states and 11223 transitions. [2024-11-24 01:37:36,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3684 [2024-11-24 01:37:36,812 INFO L210 NwaCegarLoop]: Found error trace [2024-11-24 01:37:36,816 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, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-24 01:37:36,817 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-24 01:37:36,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 01:37:36,821 INFO L85 PathProgramCache]: Analyzing trace with hash -72841372, now seen corresponding path program 1 times [2024-11-24 01:37:36,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 01:37:36,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1398661052] [2024-11-24 01:37:36,823 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 01:37:36,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms